CRACKING BEHAVIOR AND CRACK WIDTH PREDICTIONS OF CONCRETE BEAMS PRESTRESSED WITH BONDED FRP TENDONS
|
|
- Junior Kelly
- 6 years ago
- Views:
Transcription
1 CRACKING BEHAVIOR AND CRACK WIDTH PREDICTIONS OF CONCRETE BEAMS PRESTRESSED WITH BONDED FRP TENDONS Weichen XUE Professor Tongji University Siping Road 1239#, Shanghai , China Yuan TAN PhD Candidate Tongji University Siping Road 1239#, Shanghai , China Abstract A total of six specimens were tested under four-point loading to examine the cracking behavior of prestressed concrete beams with a combination of bonded CFRP tendons and steel/gfrp reinforcements. The investigated parameters included the partial prestressing ratio (PPR), amount of prestressed CFRP tendons, types of nonprestressed reinforcements, and jacking stress levels. The characteristics of cracking propagation, cracking spacing and crack widths of specimens were presented. Test results indicated that the prestressed concrete beam reinforced with nonprestressed GFRP rebars exhibited wider crack width and larger crack spacing than those reinforced with nonprestressed steel rebars. Based on the correlative principles recommended by ACI 224R-01, a formula modified from the Frosh equation was provided for calculating the maximum crack width of concrete beams with a combination of bonded FRP tendons and steel/frp reinforcements. Keywords: bond CFRP tendon, concrete beam, crack behavior, crack width 1. Introduction Fiber-reinforced polymer (FRP) composites have been proposed for use as prestressing tendons in concrete structures due to their high-strength, lightweight and noncorrosive properties since 1970s [1]. Currently, remarkable progress has been made in field applications of FRP tendons in North America, Europe, Japan, China and several other countries [2]. FRP tendons and concrete are both brittle materials, so the classical ductility which requires plastic deformation is difficult to obtain in FRP prestressed concrete members. One possible technique to improve the ductile behavior of FRP prestressed concrete members is by partially prestressing the concrete beams with addition of nonprestressed reinforcements [3]. Herein, the nonprestressed reinforcements could be selected as the (anticorrosive) steel rebars with obvious yield plateaus or the GFRP rebars with relatively high strain capacity. Experimental work showed that the nonprestressed reinforcements could enhance the ductility and reduce the crack spacing and crack width of FRP prestressed beams [4]. Page 1 of 8
2 Extensive research work on concrete beams prestressed with bonded FRP tendons have been carried out by researchers all over the world [2], in which some experimental programs were conducted to examine the cracking behavior of FRP prestressed concrete beams. Abdelrahman and Rizkalla studied the serviceability of concrete beams prestressed with Carbon Fiber-reinforced polymer (CFRP) tendons or conventional steel strands (without nonprestressed reinforcements) [5]. Test results showed that the stabilized crack pattern for beams prestressed with CFRP tendons occurred at a much lower strain level than for beams prestressed with steel strands. The number of cracks of beams prestressed with CFRP was less than that of comparable beams prestressed with steel strands due to the lower flexural bond strength of the CFRP tendons. Consequently, the crack width and spacing were typically larger for a given load level. Meng et al. compared the cracking patterns and crack widths of concrete beams with a combination of bonded CFRP tendons and steel/frp reinforcements [3]. It was concluded that the remarkable reduce of crack width could be found in the concrete beams with combined reinforcements. The crack widths in the prestressed concrete beams reinforced with FRP reinforcements were larger than the corresponding values in prestressed concrete beams reinforced with steel reinforcements for a given load level. The ACI 440 Committee developed equations for calculating the crack widths in concrete beams reinforced with FRP bars [6], while limited studies focused on the crack width predictions of concrete beams with a combination of bonded CFRP tendons and steel/frp reinforcements. This paper presents the experimental program to investigate the cracking behavior of concrete beams with combined reinforcements. In addition, a modified formula was provided for predicting the maximum crack width of concrete beams with a combination of bonded FRP tendons and steel/frp reinforcements. 2. Experimental work 2.1 Test Specimens A total of six concrete beams (denoted as PB1 to PB6, correspondingly) were cast and tested. Each beam had a cross section of mm and a span of 3700 mm. The main experimental parameters included partial prestressing ratio (PPR), amount of prestressing CFRP strands, types of nonprestressed reinforcements, and jacking stress levels. Details of the specimens are given in Table 1 and Figure 1. Table 1. Details of specimens Specimens PB1 PB2 PB3 PB4 PB5 PB6 Tendons 1M12.5CFRP 1M12.5CFRP 1M12.5CFRP 1M12.5CFRP 2M12.5CFRP 2M12.5CFRP Jacking stresses 0.55f u 0.55 f u 0.55 f u 0.65 f u 0.55 f u 0.55 f u PPR Initial prestress level 50.0% 50.2% 50.0% 59.2% 49.7% 49.9% Bottom longitudinal 2M10 2M16 2M19 2M16 2M22 2M14 reinforcements (Steel bars) (A b) (Steel bars) (GFRP bars) (Steel bars) (Steel bars) (Steel bars) Top longitudinal reinforcements 2M8 (Steel bars) (A t) Note: f u represents the ultimate tensile strength of CFRP tendons. Page 2 of 8
3 1 At Configuration of reinforcing bars 1 Ab Ap Arrangement of tendons Figure 1. Reinforcing details of specimens (mm) The measured compressive strength of the concrete cubes was 57.7 MPa at the time of testing. The average elastic modulus of concrete was 33.7 GPa, and the average tensile strength was 4.5 MPa. Mechanical properties for reinforcements are listed in Table 2. Note that the high strength CFRP strands used in this experimental program are carbon fiber composite cables (CFCC) produced by Tokyo Rope Mfg. Co. Ltd, Japan with measured ultimate strength of 2400 MPa and guaranteed tensile strength of 1868 MPa. The high strength CFRP strands are made up of seven wires that are twisted to allow better stress distribution through the cross section. The GFRP bars used in the tests were provided by Aslan company. Table 2. Mechanical properties of reinforcements Mechanical properties Conventional steel reinforcements Page 3 of 8 FRP bars/tendons M8 M10 M14 M16 M22 M19GFRP M12.5CFRP Yielding strength f y(mpa) Ultimate strength f u(mpa) Modulus of elasticity E s(mpa) Elongation ratio 24.5% 20.0% 23.0 % 20.0% 23.0% 6.0% 1.5% 2.2 Testing and Measurements All beams were tested under four-point loading. A schematic and a view of the testing setup are shown in Figure 2. The load was applied at mid-span by a hydraulic actuator acting against a reaction frame. All beams were initially loaded in increments of 1 kn and then reduced to increments of 0.5 kn as failure approached. A displacement transducer located on each beam at mid-span was used to monitor the deflection. Two displacement transducers (one at each supporting end of the beam) were used to measure the vertical displacements. Fourteen strain gauges (five on each side, two on the top, and two on the bottom of the beams) were used to measure the bending strains throughout the vertical sections of mid-span. Four strain gauges on the bottom nonprestressing bars and four on the CFRP strands were used to measure the longitudinal strains. The strains and deformation readings captured and monitored using an automatic data acquisition system, namely, process board type IMP 35951B SOLARTRON INSTRUMENTS Ltd., U.K..
4 P P Figure 2. Loading of specimens 2.3 Test results All specimens exhibited elastic characteristics before initial cracking of concrete. With increase of the vertical loads, short and fine flexural cracks initiated at constant moment regions. For all the specimens, initial cracking could be observed as the applied load increased up to about 0.22 to 0.30P u (P u was the ultimate loads of specimens). Increase in the cracking loads of approximately 50% occurred in beams prestressed with two CFRP tendons. As the vertical loads continued increased, the existing fine vertical cracks extended longer and wider and meanwhile a few new cracks could be observed at constant moment regions as well as bending shear regions. As the nonprestressing steel bars yielded (except PB3), which corresponded to a load level of 0.58 to 0.90P u, the measured maximum crack width was in the range of 0.20 to 0.30 mm and the maximum crack spacing ranged between 90 and 120 mm. Figure 3 shows the development of maximum crack width of specimens under the loading. P/kN PB1 PB2 PB3 PB4 PB5 PB w /mm Figure 3. Load versus maximum crack width of specimens After yielding of nonprestressing steel bars (except PB3), deflections of mid-span and strains of CFRP tendons increased dramatically with little vertical load gain. When reaching the peak loads, a sudden drop could be seen in the load versus deflection curves of PB1 and PB4 due to the rupture of CFRP tendons, which indicated that the specimens failed in tension. However, obvious descending stages were observed in the load versus deflection curves of PB2, PB5 Page 4 of 8
5 and PB6 and the specimens failed in compression. Cracks continued to propagate upwards, and the crack width increased quickly for all specimens. In contrast, due to the linear elastic stress-strain relationship of GFRP bars, PB3 exhibited marked differences in the loading process. No obvious yielding stage could be observed after cracking and it behaved linearly with reduced stiffness till crushing of top concrete, which resulted in the failure of the specimen. Moreover, once the cracks appeared, they extended quickly in both width and height. Eventually, the values of crack width and spacing in PB3 were found to be significantly larger than the corresponding values in other specimens. A comparison of the measured load versus mid-span deflection curves of the six specimens is given in Figure 4. P/kN PB1 PB2 PB3 PB4 PB5 PB Δ/mm Figure 4. Load versus deflection curves of specimens The load versus strain curves of CFRP strands are given in Figure 5. Seen from the figure, the tendons in the five specimens reinforced with steel bars behaved in a similar manner that two obvious points, which corresponded to first concrete cracking and yielding of steel reinforcements, respectively, were found during testing. In contrast, only one point corresponding to first concrete cracking was observed in specimen PB3 reinforced with GFRP bars. The reason was that GFRP bars behaved linearly elastic up to failure and had no yield point under tension. At ultimate, the tendon strain increments of the six specimens ( PB1 to PB6) were 8242, 6003, 6014, 6099, 4509 and 5381, respectively. The ultimate tensile strains for both beams PB1 and PB4 were much higher than the others and reached the value of 14000, which was close to the nominal ultimate tensile strains of CFRP strands. The ultimate tensile strains of the remaining four specimens ranged between and This was consistent with the conclusion that PB1 and PB4 failed due to rupture of CFRP tendon prior to concrete crushing. P/kN PB1 PB2 PB3 PB4 PB5 PB Strain developed in CFRP/με Figure 5. Load versus strain curves of CFRP strands Page 5 of 8
6 3. Crack Width Predictions The ACI 440 Committee recommended the Frosch equation for calculating the crack width of concrete beams reinforced with FRP bars [6]. The Frosch equation was derived based on a physical model, rather than being empirically derived [7]. With considering the different bond behavior of FRP reinforcements compared with steel reinforcements, a corrective coefficient for the bond quality was introduced by ACI 440.1R-06. For predicting the maximum side face cracks in concrete beams reinforced with FRP bars, the equation is given as follows: f 2 2 w 2 f kb dc ds E (1) f where w is the maximum crack width (mm); f f is the reinforcing stress (MPa); E f is the reinforcement modulus of elasticity (MPa); is the ratio of distances to neutral axis from extreme tension fiber and from centroid of FRP reinforcements; d c is the bottom cover measured from center of lowest bar (mm); and d s is the side cover measured from center of outmost bar (mm). The kb term is a coefficient that accounts for the degree of bond between FRP bar and surrounding concrete. For FRP bars having bond behavior similar to uncoated steel bars, the bond coefficient k is assumed equal to 1. b According to ACI 224R-01 [8], the expressions given for crack prediction in nonprestressed beams can be used to estimate the cracks for prestressed beams with considering the load increase above the decompression moment, i.e. prestressed member could be treated as a reinforced concrete member and the stress increments in reinforcements were applied in the calculation. For the concrete beams with a combination of FRP tendons and steel/frp rebars, the flexural cracking was mainly controlled by the outmost layer of nonprestressed reinforcements. So the maximum crack width of concrete beams with combined reinforcements can be predicted by: fnp 2 2 w 2 kb dc ds E (2) np where fnp is the magnitude of the tensile stress in the outmost layer of nonprestressed reinforcement in which the decompression load is taken as the reference point (MPa); Enp is the modulus of elasticity of the outmost layer of nonprestressed reinforcement (MPa); kb is the bond coefficient corresponding to the outmost layer of nonprestressed reinforcement. When a specific value of kb is not known for FRP reinforcing bar with sand coating, indents, sand-blasted surface and molded ribs to enhance bond with concrete, it is recommended to use a conservative value of 1.4 [6]. The value of kb could be taken as 1.5 for the epoxy coated steel bars based on the bond behavior tests [4]. The flexural crack width experiments of concrete beams with a combination of FRP tendons and steel/frp reinforcements are summarized in Table 3. The maximum crack widths of specimens were predicted by Eq. (2), and comparisons of the measured and calculated maximum crack widths are illustrated in Figure 5. Page 6 of 8
7 Table 3. Summary of flexural crack width experiments References No. Specimens FRP tendon Nonprestressed reinforcement Beam width (mm) Beam depth (mm) Beam span (mm) PPR Initial prestress level PB1 CFRP uncoated steel % Experimental work in this paper PB2 CFRP uncoated steel % PB3 CFRP GFRP bars % PB4 CFRP uncoated steel % PB5 CFRP uncoated steel % PB6 CFRP uncoated steel % BAS1-210 AFRP epoxy coated steel % BAS2-210A AFRP epoxy coated steel % BAS2-210B AFRP epoxy coated steel % BAS2-214 AFRP epoxy coated steel % Ref. [4] BAS3-210A AFRP epoxy coated steel % BAS3-210B AFRP epoxy coated steel % BAS3-314 AFRP epoxy coated steel % BAS4-206 AFRP epoxy coated steel % BAS4-210 AFRP epoxy coated steel % BAS4-214 AFRP epoxy coated steel % B1 CFRP uncoated steel % Ref. [3] B2 CFRP CFRP bars % B9 CFRP uncoated steel % B10 CFRP CFRP bars % Calculated maximum crack widths (mm) Perfect Correlation Ref.[4] Ref.[3] This paper Measured maximum crack widths (mm) Figure5. Comparisons of the measured and calculated maximum crack widths As can be seen from Fig. 5, Eq. (2) provides good predictions for the maximum crack width of concrete beams with combined reinforcements, and the mean errors are within 10%. It should be noted that the theoretical formula should be further verified due to a lack of available test data. Page 7 of 8
8 4. Conclusions (1) Test results showed that remarkable reduce of crack width could be found in the concrete beams with combined reinforcements. The crack widths in the prestressed concrete beams reinforced with FRP reinforcements were larger than the corresponding values in prestressed concrete beams reinforced with steel reinforcements for a given load level. (2) Based on Frosh crack width equation, a modified formula was provided for calculating the maximum crack width of concrete beams with a combination of bonded FRP tendons and steel/frp reinforcements. Acknowledgements The authors acknowledge the supports of Fund of Western Communications Construction Scientific and Technological Project by the Ministry of Communications of the P.R. China (No ) and the Fund of National Natural Science Foundation of China (No ). References [1] REHM, G., FRANKE, L., Plastic Bonded Fiberglass Rods as Reinforcement for Concrete, Bautechnik, Ausgabe A, Vol. 51, No. 4, Apr. 1974, pp [2] ACI COMMITTEE 440, Prestressing Concrete Structures with FRP Tendons (440. 4R-04), American Concrete Institute, Farmington Hills, Mich., 2004, 35 pp. [3] MENG, Y., GU, X. L., ANSARI, F., Calculation Method for the Bending Capacity of Concrete Beam Reinforced by CFRP Bars, Proceedings of the International Conference on FRP Composites in Civil Engineering, Vol. Ⅱ, CICE, Hong Kong, China, 2001, pp [4] MENG, L. X., TAO, X. K., GUAN, J. G., XU, F. Q., Experimental Study on Flexural Behavior of Partially Prestressed Concrete Beams with Bonded AFRP Tendons, China Civil Engineering Journal, Vol. 39, No. 3, Mar. 2006, pp.10-18, 36. (in Chinese) [5] ABDELRAHMAN, A., RIZKALLA, S., Serviceability of Concrete Beams Prestressed by Carbon Fiber-reinforced-plastic Bars, ACI Structural Journal, Vol. 94, No. 4, Jul.-Aug. 1997, pp [6] ACI COMMITTEE 440, Guide for the Design and Construction of Structural Concrete Reinforced with FRP Bars (ACI 440.1R-06), American Concrete Institute, Farmington Hills, Mich., 2004, 44 pp. [7] FROSCH, R. J., Another Look at Cracking and Crack Control in Reinforced Concrete, ACI Structural Journal, Vol. 96, No. 3, May-June 1999, pp [8] ACI COMMITTEE 224, Control of Cracking in Concrete Structures (ACI 224R-01), American Concrete Institute, Farmington Hills, Mich., 2001, 46 pp. Page 8 of 8
1. INTRODUCTION. (a) Sand/ Fabric-coated (b) Sand-coated deformed. (c) Helical wrapped/ribbed Fig.1 FRP anchors with different outer surfaces
S2B3 Interface Bond Strength of Helical Wrapped GFRP Ground Anchors Weichen Xue Prof., Department of Building Engineering, Tongji University, Shanghai, China Yuan Tan PhD candidate, Department of Building
More informationExperimental investigation of the use of CFRP grid for shear strengthening of RC beams
Journal of Asian Concrete Federation Vol. 2, No. 2, Dec. 2016, pp. 117-127 ISSN 2465-7964 / eissn 2465-7972 http://dx.doi.org/10.18702/acf.2016.12.2.2.117 Experimental investigation of the use of CFRP
More informationStrengthening of Reinforced Concrete Beams using Near-Surface Mounted FRP Mohamed Husain 1, Khaled Fawzy 2, and Mahmoud Nasr 3
ISSN: 239-5967 ISO 900:2008 Certified Volume 4, Issue 5, September 205 Strengthening of Reinforced Concrete Beams using Near-Surface Mounted FRP Mohamed Husain, Khaled Fawzy 2, and Mahmoud Nasr 3 Abstract-
More informationEffect of Bar-cutoff and Bent-point Locations on Debonding Loads in RC Beams Strengthened with CFRP Plates
CICE 2010 - The 5th International Conference on FRP Composites in Civil Engineering September 27-29, 2010 Beijing, China Effect of Bar-cutoff and Bent-point Locations on Debonding Loads in RC Beams Strengthened
More informationGFRP HOLLOW-CORE REBARS FOR CONCRETE BEAMS
GFRP HOLLOW-CORE REBARS FOR CONCRETE BEAMS Guillermo Claure 1, Francisco De Caso y Basalo 2 and Antonio Nanni 3 1 PhD Candidate, Civil Engineering, University of Miami 1251 Memorial Drive, MEB 105, Coral
More informationREVIEW ON SHEAR SLIP OF SHEAR KEYS IN BRIDGES
REVIEW ON SHEAR SLIP OF SHEAR KEYS IN BRIDGES Benjamin Raison R; Freeda Christy C PG student, School of Civil Engineering, Karunya University. Associate Professor, School of Civil Engineering, Karunya
More informationAN INNOVATIVE DUCTILE COMPOSITE FABRIC FOR STRENGTHENING CONCRETE STRUCTURES. Abstract
AN INNOVATIVE DUCTILE COMPOSITE FABRIC FOR STRENGTHENING CONCRETE STRUCTURES Nabil F. Grace, Lawrence Technological University, Southfield, MI George Abdel-Sayed, University of Windsor, Windsor, ON Wael
More informationDeflection Assessment of an FRP-Reinforced Concrete Bridge. By Danielle K. Stone, Andrea Prota, and Antonio Nanni
Deflection Assessment of an FRP-Reinforced Concrete Bridge By Danielle K. Stone, Andrea Prota, and Antonio Nanni Synopsis: Serviceability of FRP-reinforced concrete structures remains a highly relevant
More informationBEHAVIOR OF INFILL MASONRY WALLS STRENGTHENED WITH FRP MATERIALS
BEHAVIOR OF INFILL MASONRY WALLS STRENGTHENED WITH FRP MATERIALS D.S. Lunn 1,2, V. Hariharan 1, G. Lucier 1, S.H. Rizkalla 1, and Z. Smith 3 1 North Carolina State University, Constructed Facilities Laboratory,
More informationStrengthening of hollow core precast slabs using FRP composite materials procedure, testing and rating
Strengthening of hollow core precast slabs using FRP composite materials procedure, testing and rating FLORUŢ SORIN-CODRUŢ*, NAGY-GYÖRGY TAMÁS*, STOIAN VALERIU*, DIACONU DAN* * Department of Civil Engineering
More informationSlenderness ratio effect on the behavior of steel and carbon-frp reinforced concrete-filled FRP tubes
Slenderness ratio effect on the behavior of steel and carbon-frp reinforced concrete-filled FRP tubes H. M. Mohamed 1, R. Masmoudi 2, and Y. Shao 3 1 Postdoctoral Fellow, University of Sherbrooke, Sherbrooke,
More informationMoment curvature analysis of concrete flexural members confined with CFRP grids
Materials Characterisation V 131 Moment curvature analysis of concrete flexural members confined with CFRP grids A. Michael & P. Christou Department of Civil Engineering, Frederick University, Cyprus Abstract
More informationSeismic Retrofit Of RC Columns With Inadequate Lap-Splice Length By External Post-Tensioned High-Strength Strips
Seismic Retrofit Of RC Columns With Inadequate Lap-Splice Length By External Post-Tensioned High-Strength Strips M. Samadi Department of civil engineering., Mashhad Branch, Islamic Azad University, Mashhad,
More informationMECHANICAL CHARACTERIZATION OF SANDWICH STRUCTURE COMPRISED OF GLASS FIBER REINFORCED CORE: PART 1
Composites in Construction 2005 Third International Conference Lyon, France, July 11 13, 2005 MECHANICAL CHARACTERIZATION OF SANDWICH STRCTRE COMPRISED OF GLASS FIBER REINFORCED CORE: PART 1 S.V. Rocca
More information1. INTRODUCTION. Fig.1 Dimension of test specimen
F1B04 Evaluation of a Shear Wall Reinforced with Glass FRP Bars Subjected to Lateral Cyclic Loading Nayera Mohamed PhD candidate, Department of Civil Engineering, University of Sherbrooke, Sherbrooke,
More informationGFRP retrofitted RC frames with columns subjected to high axial stresses
GFRP retrofitted RC frames with columns subjected to high axial stresses K. D. Dalgic Istanbul Kultur University, Turkey O. Ozel Istanbul Technical University, Turkey M. Ispir Istanbul Technical University,
More informationAXIAL TESTING OF CONCRETE COLUMNS CONFINED WITH CARBON FRP: EFFECT OF FIBER ORIENTATION. Abstract
AXIAL TESTING OF CONCRETE COLUMNS CONFINED WITH CARBON FRP: EFFECT OF FIBER ORIENTATION Renato Parretti, Co-Force America, Inc., Rolla, MO Antonio Nanni, University of Missouri-Rolla, Rolla, MO Abstract
More informationCENTER FOR INFRASTRUCTURE ENGINEERING STUDIES
CENTER FOR INFRASTRUCTURE ENGINEERING STUDIES Moment Redistribution in Continuous CFRP-Strengthened Concrete Members: Experimental Results by P. Casadei & A. Nanni Department of Civil Engineering, University
More informationSERVICEABILITY LIMIT STATES OF CONCRETE BEAMS PRESTRESSED BY CFRP BARS
SERVICEABILITY LIMIT STATES OF CONCRETE BEAMS PRESTRESSED BY CFRP BARS by Amr A. Abdelrahman(l) and Sami H. Rizkalla(2) Abstract The non-corrosive and high strength-to-weight ratio characteristics of carbon
More informationTests on FRP-Concrete Bond Behaviour in the presence of Steel
Tests on FRP-Concrete Bond Behaviour in the presence of Steel M. Taher Khorramabadi and C.J. Burgoyne Engineering Department, University of Cambridge Trumpington St., Cambridge, UK ABSTRACT The bond behaviour
More informationInitial Tests of Kevlar Prestressed Timber Beams
Initial Tests of Kevlar Prestressed Timber Beams Terrel L. Galloway, Christian Fogstad, Charles W. DoIan P. E., PhD., J. A. Puckett P. E., PhD., University of Wyoming Abstract The high strength, high modulus
More informationNONLINEAR FINITE ELEMENT ANALYSIS OF SHALLOW REINFORCED CONCRETE BEAMS USING SOLID65 ELEMENT
NONLINEAR FINITE ELEMENT ANALYSIS OF SHALLOW REINFORCED CONCRETE BEAMS USING SOLID65 ELEMENT M. A. Musmar 1, M. I. Rjoub 2 and M. A. Abdel Hadi 1 1 Department of Civil Engineering, Al-Ahliyya Amman University,
More informationStructural Design Guidelines for Concrete Bridge Decks Reinforced With Corrosion- Resistant Reinforcing Bars
Structural Design Guidelines for Concrete Bridge Decks Reinforced With Corrosion- Resistant Reinforcing Bars http://www.virginiadot.org/vtrc/main/online_reports/pdf/15-r10.pdf ABRAHAM LAMA SALOMON Graduate
More informationPerformance of NSM FRP strengthened concrete slabs at low temperatures
Fourth International Conference on FRP Composites in Civil Engineering (CICE8) 22-24July 8, Zurich, Switzerland Performance of NSM FRP strengthened concrete slabs at low temperatures P. Burke, L.A. Bisby
More informationIn-plane testing of precast concrete wall panels with grouted sleeve
In-plane testing of precast concrete wall panels with grouted sleeve P. Seifi, R.S. Henry & J.M. Ingham Department of Civil Engineering, University of Auckland, Auckland. 2017 NZSEE Conference ABSTRACT:
More informationULTIMATE LOAD-CARRYING CAPACITY OF SELF-ANCHORED CONCRETE SUSPENSION BRIDGE
ULTIMATE LOAD-CARRYING CAPACITY OF SELF-ANCHORED CONCRETE SUSPENSION BRIDGE Meng Jiang*, University of Technology Dalian, P. R. China Wenliang Qiu, University of Technology Dalian, P. R. China Lihua Han,
More informationFlexural Behaviour of External Reinforced Concrete Beams
Available online at www.sciencedirect.com rocedia Engineering 54 ( 2013 ) 252 260 he 2 nd International Conference on Rehabilitation and Maintenance in Civil Engineering Flexural Behaviour of External
More informationDeformation Analysis of Prestressed Continuous Steel-Concrete Composite Beams
Deformation Analysis of Prestressed Continuous Steel-Concrete Composite Beams Jianguo Nie 1 ; Muxuan Tao 2 ;C.S.Cai 3 ; and Shaojing Li 4 Abstract: Deformation calculation of prestressed continuous steel-concrete
More informationDuctility of High Strength Concrete Heavily Steel Reinforced Members
Transaction A: Civil Engineering Vol. 16, No. 4, pp. 297{307 c Sharif University of Technology, August 2009 Ductility of High Strength Concrete Heavily Steel Reinforced Members Abstract. A.A. Maghsoudi
More informationStudy of the bond behavior of carbon fibre reinforced polymer bars
Study of the bond behavior of carbon fibre reinforced polymer bars S.B. Singh and Aditi Chauhan In this study, experiments were conducted to find the bond characteristics of three different carbon fibre
More informationConcrete-filled fiber reinforced polymer tube-footing interaction in bending
Fourth International Conference on FRP Composites in Civil Engineering (CICE2008) 22-24July 2008, Zurich, Switzerland Concrete-filled fiber reinforced polymer tube-footing interaction in bending Y. C.
More informationEXPERIMENTAL ANALYSIS ON THE SHEAR BEHAVIOUR OF RC BEAMS STRENGTHENED WITH GFRP SHEETS
EXPERIMENTAL ANALYSIS ON THE SHEAR BEHAVIOUR OF RC BEAMS STRENGTHENED WITH GFRP SHEETS Ugo Ianniruberto Department of Civil Engineering, University of Rome Tor Vergata, ITALY Via del Politecnico, 1, 00133
More informationCYCLIC TESTING OF BOLTED CONTINUOUS I-BEAM-TO-HOLLOW SECTION COLUMN CONNECTIONS
10NCEE Tenth U.S. National Conference on Earthquake Engineering Frontiers of Earthquake Engineering July 21-25, 2014 Anchorage, Alaska CYCLIC TESTING OF BOLTED CONTINUOUS I-BEAM-TO-HOLLOW SECTION COLUMN
More informationStudies on ductility of RC beams in flexure and size effect
Studies on ductility of RC beams in flexure and size effect G. Appa Rao* & I. Vijayanand *University of Stuttgart, 7569, Stuttgart, Germany Indian Institute of Technology Madras, Chennai-6 36, India R.
More informationEvaluation of the Orientation of 90 and 180 Reinforcing Bar Hooks in Wide Members
Research Note Research Note RN-2009-2 Evaluation of the Orientation of 90 and 180 Reinforcing Bar Hooks in Wide Members Introduction Longitudinal reinforcing steel bars in flexural members are often developed
More informationSTRENGTHENING STEEL-CONCRETE COMPOSITE BRIDGES WITH HIGH MODULUS CARBON FIBER REINFORCED POLYMER (CFRP) LAMINATES
Composites in Construction 2005 Third International Conference, Hamelin et al (eds) 2005 ISBN xxxxx Lyon, France, July 11 13, 2005 STRENGTHENING STEEL-CONCRETE COMPOSITE BRIDGES WITH HIGH MODULUS CARBON
More informationCFRP STRENGTHENING OF CONCRETE BRIDGES WITH CURVED SOFFITS
CFRP STRENGTHENING OF CONCRETE BRIDGES WITH CURVED SOFFITS Nagaraj Eshwar Dr Tim Ibell Dr Antonio Nanni Graduate Research Assistant Senior Lecturer Jones Professor CIES, # 223 ERL University of Bath CIES,
More informationComparative Study of GFRP Rebar and Steel Rebar used in Concrete Sections
GRD Journals- Global Research and Development Journal for Engineering Volume 2 Issue 6 May 2017 ISSN: 2455-5703 Comparative Study of GFRP Rebar and Steel Rebar used in Concrete Sections Vipin George PG
More informationPRELOADING EFFECT ON LOAD CAPACITY AND DUCTILITY OF RC BEAMS STRENGTHENED WITH PRESTRESSED CFRP STRIPS
PRELOADING EFFECT ON LOAD CAPACITY AND DUCTILITY OF RC BEAMS STRENGTHENED WITH PRESTRESSED CFRP STRIPS Renata Kotynia Ph.D., Assistant Professor Technical University of Lodz, Poland Al. Politechniki 6,
More informationStructural Behaviors of Deep RC Beams under Combined Axial and Bending Force
Available online at www.sciencedirect.com Procedia Engineering 14 (2011) 2212 2218 The Twelfth East Asia-Pacific Conference on Structural Engineering and Construction Structural Behaviors of Deep RC Beams
More informationSHEAR STRENGTH OF BEAMS REINFORCED WITH SYNTHETIC MACRO-FIBERS AND STIRRUPS
BEFIB2012 Fibre reinforced concrete Joaquim Barros et al. (Eds) UM, Guimarães, 2012 SHEAR STRENGTH OF BEAMS REINFORCED WITH SYNTHETIC MACRO-FIBERS AND STIRRUPS Salah Altoubat *, Yazdanbakhsh Ardavan 1
More informationBeam Pull Out Tests of NSM FRP and Steel Bars in Concrete
Fourth International Conference on FRP Composites in Civil Engineering (CICE2008) 22-24July 2008, Zurich, Switzerland Beam Pull Out Tests of NSM FRP and Steel Bars in Concrete D. G. Novidis and S. J. Pantazopoulou
More informationPERFORMANCE STUDY OF RETROFITTED GRAVITY LOAD DESIGNED WALL FRAME STRUCTURES (SC-140)
PERFORMANCE STUDY OF RETROFITTED GRAVITY LOAD DESIGNED WALL FRAME STRUCTURES (SC-140) *A. Ahmed 1, K. H. Tan 1 1 Department of Civil and Environmental Engineering National University of Singapore, Singapore,
More informationSTRENGTHENING OF INFILL MASONRY WALLS USING BONDO GRIDS WITH POLYUREA
I.1 June 2005 STRENGTHENING OF INFILL MASONRY WALLS USING BONDO GRIDS WITH POLYUREA SUMMARY Glass fiber reinforced polymer (GFRP) grids reinforced polyurea was used to strengthen unreinforced concrete
More informationExperiment of Reinforce Concrete Beams at Different Loading Rates
Experiment of Reinforce Concrete Beams at Different Loading Rates Shiyun Xiao, Wenbo Cao & Haohao Pan Dalian University of Technology, Dalian 116024, China SUMMARY: (10 pt) Dynamic experiment of reinforced
More informationBond Characteristics of GFRP Sheet on Strengthened Concrete Beams due to Flexural Loading
Bond Characteristics of GFRP Sheet on Strengthened Concrete Beams due to Flexural Loading Rudy Djamaluddin, Mufti Amir Sultan, Rita Irmawati, and Hino Shinichi Abstract Fiber reinforced polymer (FRP) has
More informationDESIGN GUIDELINES FOR BRIDGE DECK SLABS REINFORCED by CFRP and GFRP
------------ DESIGN GUIDELINES FOR BRIDGE DECK SLABS REINFORCED by CFRP and GFRP Tarek Hassan 1, Amr Abdelrahman 2, Gamil Tadros 3, and Sami Rizkalla 4 Summary The use of carbon and glass fibre reinforced
More informationFatigue and Overloading Behavior of Steel Concrete Composite Flexural Members Strengthened with High Modulus CFRP Materials
Fatigue and Overloading Behavior of Steel Concrete Composite Flexural Members Strengthened with High Modulus CFRP Materials M. Dawood 1 ; S. Rizkalla 2 ; and E. Sumner 3 Abstract: Due to corrosion and
More informationStrengthening Effect on Prestressed Concrete members Affected by Alkali-Silica Reaction(ASR)
Strengthening Effect on Prestressed Concrete members Affected by Alkali-Silica Reaction(ASR) Yukio Takebe 1, Takanobu Yokoyama 2, Hideshige Yonekawa 3, Kenichi Nakamura 4, Toyoaki Miyagawa 5 1 DPS Bridge
More informationApplication of Tensioned CFRP Strip Method to an Existing Bridge
SP-230 66 Application of Tensioned CFRP Strip Method to an Existing Bridge by A. Tateishi, A. Kobayashi, Y. Hamada, T. Takahashi, and H. Yasumori Synop nopsis: s: Tensioned carbon fiber reinforced polymer
More informationSEISMIC RETROFIT OF BEAM-COLUMN JOINTS WITH FRP SHEETS
B-4 ADVANCED COMPOSITE MATERIALS IN BRIDGES AND STRUCTURES MATÉRIAUX COMPOSITES D'AVANT GARDE POUR PONTS ET CHARPENTES Winnipeg, Manitoba, Canada, September 22 24, 28 / 22, 23 et 24 septembre 28 SEISMIC
More informationFLEXURAL IMPROVEMENT OF PLAIN CONCRETE BEAMS STRENGTHENED WITH HIGH PERFORMANCE FIBRE REINFORCED CONCRETE
Nigerian Journal of Technology (NIJOTECH) Vol. 36, No. 3, July 17, pp. 697 74 Copyright Faculty of Engineering, University of Nigeria, Nsukka, Print ISSN: 331-8443, Electronic ISSN: 2467-8821 www.nijotech.com
More informationAnalysis of concrete columns Reinforced by Fiber Reinforced Polymers Bars Mohamed Husain, Hilal Hassan, Eman Salama
Analysis of concrete columns Reinforced by Fiber Reinforced Polymers Bars Mohamed Husain, Hilal Hassan, Eman Salama Abstract The results of an analytical investigation achieved by using ANSYS software
More informationSEISMIC RETROFITTING OF REINFORCED CONCRETE COLUMNS USING CARBON FIBER REINFORCED POLYMER (CFRP)
Asia-Pacific Conference on FRP in Structures (APFIS 7) S.T. Smith (ed) 7 International Institute for FRP in Construction SEISMIC RETROFITTING OF REINFORCED CONCRETE COLUMNS USING CARBON FIBER REINFORCED
More informationEXPERIMENTAL STUDY ON RC COLUMNS RETROFITTED BY FRP AND SUBJECTED TO SEISMIC LOADING
EXPERIMENTAL STUDY ON RC COLUMNS RETROFITTED BY FRP AND SUBJECTED TO SEISMIC LOADING Raphaelle SADONE, Marc QUIERTANT Université Paris Est - IFSTTAR - SOA 58 Boulevard Lefebvre, 75015 PARIS r.sadone@hotmail.fr*;
More informationANCHORING METHOD FOR PRESTRESSING OF FRP REINFORCEMENT
ANCHORING METHOD FOR PRESTRESSING OF FRP REINFORCEMENT D Ďurech, Brno University of Technology, Czech Republic F Girgle, Brno University of Technology, Czech Republic D Horák, Brno University of Technology,
More informationTORSION SIMPLIFIED: A FAILURE PLANE MODEL FOR DESIGN OF SPANDREL BEAMS
TORSION SIMPLIFIED: A FAILURE PLANE MODEL FOR DESIGN OF SPANDREL BEAMS Gary Klein, Gregory Lucier, Sami Rizkalla, Paul Zia and Harry Gleich Biography: Gary Klein, FACI, is Executive Vice President and
More informationUpgrading the shear strength of non-ductile reinforced concrete frame connections using FRP overlay systems
Upgrading the shear strength of non-ductile reinforced concrete frame connections using FRP overlay systems Mohamad J. Terro Associate Professor. Civil Engineering Department, Kuwait University. Sameer
More informationBehaviour of Post-Installed GFRP Adhesive Anchors in Concrete
NSERC Industrial Research Chair in Innovative FRP Composites for Infrastructures Behaviour of Post-Installed GFRP Adhesive Anchors in Concrete Prepared by: Ehab A. Ahmed, Ehab El-Salakawy, and Brahim Benmokrane
More informationStructural behaviour and failure mechanisms of concrete monoblock railway sleepers
Structural behaviour and failure mechanisms of concrete monoblock railway sleepers Olli Kerokoski, Antti Nurmikolu and Tommi Rantala Department of Civil Engineering, Tampere University of Technology, P.O.
More informationStrengthening of prestressed concrete hollow-core slab openings using near-surface-mounted carbonfiber-reinforced
Strengthening of prestressed concrete hollow-core slab openings using near-surface-mounted carbonfiber-reinforced polymer reinforcement Karam Mahmoud, Steven Foubert, and Ehab El-Salakawy Precast, prestressed
More informationNLFEA Fire Resistance of 3D System Ceiling Panel
NLFEA Fire Resistance of 3D System Ceiling Panel Rajai Z. Al-Rousan 1 Department of Civil Engineering, Jordan University of Science and Technology, Irbid, Jordan E-mail: rzalrousn@just.edu.jo 2 Department
More informationRESPONSE OF SUBSTANDARD REINFORCING DETAILS T CONNECTIONS UPGRADED WITH CONCRETE COVERS AND CFRP
Fourth Asia-Pacific Conference on FRP in Structures (APFIS 2013) 11-13 December 2013, Melbourne, Australia 2013 International Institute for FRP in Construction RESPONSE OF SUBSTANDARD REINFORCING DETAILS
More informationBehavior of Concrete-Filled FRP Tubes Under Bending, Axial Loads, and Combined Loading. Amir Fam, Bart Flisak and Sami Rizkalla
Behavior of Concrete-Filled FRP Tubes Under Bending, Axial Loads, and Combined Loading Amir Fam, Bart Flisak and Sami Rizkalla ABSTRACT Innovative hybrid systems such as the concrete-filled fiber reinforced
More informationBond Characteristics of ASTM A1035 Steel Reinforcing Bars
ACI STRUCTURAL JOURNAL Title no. 106-S51 TECHNICAL PAPER Bond Characteristics of ASTM A1035 Steel Reinforcing Bars by Hatem M. Seliem, Amr Hosny, Sami Rizkalla, Paul Zia, Michael Briggs, Shelby Miller,
More informationPile to Slab Bridge Connections
Pile to Slab Bridge Connections Mohamed I. Ayoub 1, David H. Sanders 2 and Ahmed Ibrahim 3 Abstract Slab bridges are a common bridge type, where the pile extends directly from the ground to the superstructure.
More informationSTRUCTURAL CHARACTERISTICS OF CONCRETE-FILLED GLASS FIBER REINFORCED COMPOSITE PILES. Abstract
STRUCTURAL CHARACTERISTICS OF CONCRETE-FILLED GLASS FIBER REINFORCED COMPOSITE PILES Sung Woo Lee 1, Sokhwan Choi 2, Byung-Suk Kim 3, Young-Jin Kim 4, Sung-Yong Park 5 1 Prof., Dept of Civil & Environmental
More informationSEISMIC TEST OF CONCRETE BLOCK INFILLED REINFORCED CONCRETE FRAMES
SEISMIC TEST OF CONCRETE BLOCK INFILLE REINFORCE CONCRETE FRAMES Yoshiaki NAKANO 1, Ho CHOI 2, Yasushi SANAA 3 and Naruhito YAMAUCHI 4 1 Associate Professor, Institute of Industrial Science, The University
More informationTHE DESIGN OF EXTERNALLY BONDED REINFORCEMENT (EBR) FOR REINFORCED CONCRETE STRUCTURES BY MEANS OF FIBRE REINFORCED POLYMERS (FRP)
THE DESIGN OF EXTERNALLY BONDED REINFORCEMENT (EBR) FOR REINFORCED CONCRETE STRUCTURES BY MEANS OF FIBRE REINFORCED POLYMERS (FRP) Introduction Dott. Ing. Giovanni Cerretini Studio Technica (studio@technica.net)
More informationStrengthening of infilled RC frames by CFRP
Earthquake Resistant Engineering Structures V 591 Strengthening of infilled RC frames by CFRP G. Erol, K. Taskın, E. Yuksel & H. F. Karadogan Civil Engineering Faculty of Istanbul Technical University,
More information5.4 Analysis for Torsion
5.4 Analysis for Torsion This section covers the following topics. Stresses in an Uncracked Beam Crack Pattern Under Pure Torsion Components of Resistance for Pure Torsion Modes of Failure Effect of Prestressing
More informationHow to Design a Singly Reinforced Concrete Beam
Time Required: 45 minutes Materials: -Engineering Paper -Calculator -Pencil -Straight Edge Design For Flexural Limit State How to Design a Singly Reinforced Concrete Beam Goal: ΦMn > Mu Strength Reduction
More information1.7 Prestressing Steel
1.7 Prestressing Steel This section covers the following topics. Forms of Prestressing Steel Types of Prestressing Steel Properties of Prestressing Steel Codal Provisions of Steel 1.7.1 Forms of Prestressing
More informationSHEAR BEHAVIOR OF DOUBLY REINFORCED CONCRETE BEAMS WITH AND WITHOUT STEEL FIBERS AFFECTED BY DISTRIBUTED CRACKS
SHEAR BEHAVIOR OF DOUBLY REINFORCED CONCRETE BEAMS WITH AND WITHOUT STEEL FIBERS AFFECTED BY DISTRIBUTED CRACKS Ionut Ovidiu TOMA 1, Tomohiro MIKI 2 and Junichiro NIWA 3 1 Member of JSCE, Ph.D. Candidate,
More informationPHYSICAL, MECHANICAL, AND DURABILITY CHARACTERIZATION OF CARBON FRP CABLE
PHYSICAL, MECHANICAL, AND DURABILITY CHARACTERIZATION OF CARBON FRP CABLE Ahmed H. Ali 1, Hamdy M. Mohamed 2, Patrice Cousin 3, Adel ElSafty 4, and Brahim Benmokrane 5 1 Doctoral candidate, University
More informationNEW HYBRID GLULAM BEAM REINFORCED WITH CFRP AND ULTRA-HIGH-PERFORMANCE CONCRETE
NEW HYBRID GLULAM BEAM REINFORCED WITH CFRP AND ULTRA-HIGH-PERFORMANCE CONCRETE L. MICHEL Associate Professor Université Lyon 1-INSA LYON 1 82 bd Niels Bohr 69622 VILLEURBANNE Emmanuel.ferrier@univ-lyon1.fr
More informationInfluence of Arching Mechanism in Masonry Walls Strengthened with FRP Laminates
Influence of Arching Mechanism in Masonry Walls Strengthened with FRP Laminates Nestore Galati, J. Gustavo Tumialan, Antonio Nanni and Antonio La Tegola University of Missouri Rolla ABSTRACT Fiber reinforced
More informationFINITE ELEMENT ANALYSIS OF REINFORCED CONCRETE BRIDGE PIER COLUMNS SUBJECTED TO SEISMIS LOADING
FINITE ELEMENT ANALYSIS OF REINFORCED CONCRETE BRIDGE PIER COLUMNS SUBJECTED TO SEISMIS LOADING By Benjamin M. Schlick University of Massachusetts Amherst Department of Civil and Environmental Engineering
More informationExperimental study on seismic behavior of composite concrete and
6 th International Conference on Advances in Experimental Structural Engineering 11 th International Workshop on Advanced Smart Materials and Smart Structures Technology August 1-2, 215, University of
More informationDESIGN OF POST-TENSIONED MEMBERS IN BENDING USING ACI SIMPLIFIED PROCEDURE
Structural Concrete Software System TN 179 Aci_simplified_M_design3 011005 DESIGN OF POST-TENSIONED MEMBERS IN BENDING USING ACI 318 2002 SIMPLIFIED PROCEDURE 1. BACKGROUND 1.1 GENERAL The following describes
More informationEffect of FRP strengthening on the behavior of shear walls with opening
CICE 2010 - The 5th International Conference on FRP Composites in Civil Engineering September 27-29, 2010 Beijing, China Effect of FRP strengthening on the behavior of shear walls with opening M. Asfa
More informationFlexural performance of fire damaged and rehabilitated two span reinforced concrete slabs and beams
Structural Engineering and Mechanics, Vol. 42, No. 5 (2012) 000-000 1 Flexural performance of fire damaged and rehabilitated two span reinforced concrete slabs and beams Jiang-Tao Yu* 1, Yuan Liu 1, Zhou-Dao
More informationModelling of RC moment resisting frames with precast-prestressed flooring system
Modelling of RC moment resisting frames with precast-prestressed flooring system B.H.H. Peng, R.P. Dhakal, R.C. Fenwick & A.J. Carr Department of Civil Engineering, University of Canterbury, Christchurch.
More informationCyclic behaviour of a full scale RC structural wall
Engineering Structures 25 (2003) 835 845 www.elsevier.com/locate/engstruct Cyclic behaviour of a full scale RC structural wall P. Riva, A. Meda, E. Giuriani Civil Engineering Department, University of
More informationSHEAR PERFORMANCE OF EXISTING REINFORCED CONCRETE T-BEAMS STRENGTHENED WITH FRP
SHEAR PERFORMANCE OF EXISTING REINFORCED CONCRETE T-BEAMS STRENGTHENED WITH FRP Stefania IMPERATORE PhD simperatore@uniroma3.it Davide LAVORATO PhD dlavorato@uniroma3.it Camillo NUTI Full Professor cnuti@uniroma3.it
More informationCYCLIC BEHAVIOUR OF SANDWICH CONCRETE BEAM UNDER FLEXURAL LOADING
Journal of Built Environment, Technology and Engineering, Vol. 3 (September) ISSN 128-13 217 CYCLIC BEHAVIOUR OF SANDWICH CONCRETE BEAM UNDER FLEXURAL LOADING Firdaus Department of Civil Engineering Universitas
More informationTWO-WAY POST-TENSIONED SLABS WITH BONDED TENDONS
PTI JOURNAL TECHNICAL PAPER TWO-WAY POST-TENSIONED SLABS WITH BONDED TENDONS By Kenneth B. Bondy Authorized reprint from: December 2012 issue of the PTI Journal Copyrighted 2012, Post-Tensioning Institute
More informationGFRP-STEEL HYBRID REINFORCED CONCRETE BRIDGE DECK SLABS IN QUEBEC, CANADA
Fourth Asia-Pacific Conference on FRP in Structures (APFIS 213) 11-13 December 213, Melbourne, Australia 213 International Institute for FRP in Construction GFRP-STEEL HYBRID REINFORCED CONCRETE BRIDGE
More informationComposite Beams of Cold Formed Steel Section and Concrete Slab
Composite Beams of Cold Formed Steel Section and Concrete Slab 1 M. A. YOUNS, 2 S.A. HASSANEEN, 3 M.R. BADR and 4 E.S. SALEM 1 Assistant lecturer, Civil Eng. Dept., Azhar University, Qena, Egypt, 2 Prof.
More informationRETROFITTING OF COLUMNS WITH RC JACKETTING AN EXPERIMENTAL BEHAVIOR
RETROFITTING OF COLUMNS WITH JACKETTING AN EXPERIMENTAL BEHAVIOR 1 K.SENGOTTIAN, 2 DR.K.JAGADEESAN 1 Research Scholar (4089023115), Anna University, Coimbatore 2 Professor and Head, Department of Civil
More informationPUNCHING SHEAR STRENGTH OF GFRP REINFORCED DECK SLABS IN SLAB- GIRDER BRIDGES
IV ACMBS MCAPC 4 th International Conference on Advanced Composite Materials in Bridges and Structures 4 ième Conférence Internationale sur les matériaux composites d avant-garde pour ponts et charpentes
More informationSustainable Shear Behaviour of 2-Span Continuous Reinforced Concrete T-Beams with CFRP Strips
Sustainable Shear Behaviour of 2-Span Continuous Reinforced Concrete T-Beams with CFRP Strips Abdul Aziz Abdul Samad 1,*, Marwan B.S. Alferjani 2, Noorwirdawati Ali 1, Noridah Mohamad 2, Mohd Hilton Ahmad
More informationSoftening Coefficients for Prestressed Steel Fiber Reinforced Concrete. Prestressed Steel Fiber Reinforced Concrete in Tension.
Constitutive Relationships of Prestressed Steel Fiber Reinforced Concrete in Tension Justin Mickey Softening Coefficients for Prestressed Steel Fiber Reinforced Concrete Thomas Kelleher NSF REU Summer
More informationCYCLIC BEHAVIOR OF SLENDER R/C COLUMNS WITH INSUFFICIENT LAP SPLICE LENGTH
CYCLIC BEHAVIOR OF SLENDER R/C COLUMNS WITH INSUFFICIENT LAP SPLICE LENGTH S.Eshghi 1 and V.Zanjanizadeh 2 1 Assistant Professor of International Institute of Earthquake Engineering and Seismology (IIEES),
More informationScientific Seminar Design of Steel and Timber Structures SPbU, May 21, 2015
Riga Technical University Institute of Structural Engineering and Reconstruction Scientific Seminar The research leading to these results has received the funding from Latvia state research programme under
More informationSTRENGTH OF MATERIALS laboratory manual
STRENGTH OF MATERIALS laboratory manual By Prof. Shaikh Ibrahim Ismail M.H. Saboo Siddik College of Engineering, MUMBAI TABLE OF CONTENT Sr. No. Title of Experiment page no. 1. Study of Universal Testing
More informationFLEXURAL STRENGTHENING OF REINFORCED CONCRETE BEAM WITH FERROCEMENT
FLEXURAL STRENGTHENING OF REINFORCED CONCRETE BEAM WITH FERROCEMENT S. P. Shang*, Hunan University, China L. O. Zeng, Hunan University, China H. Peng, Hunan University, China 28th Conference on OUR WORLD
More informationINHERENT DUCTILITY OF REINFORCED CONCRETE SHEAR WALLS WITH NON-SEISMIC DETAILING
INHERENT DUCTILITY OF REINFORCED CONCRETE SHEAR WALLS WITH NON-SEISMIC DETAILING J. S. Kuang*, Hong Kong University of Science and Technology, Hong Kong Y. B. Ho, Hong Kong University of Science and Technology,
More informationFRP Reinforced Concrete Slabs in Fire: A Parametric Analysis
FRP Reinforced Concrete Slabs in Fire: A Parametric Analysis M. Adelzadeh 1, H. Hajiloo 1, M F. Green 2 1 Ph.D. Candidate, Civil Eng., Queen s University, Kingston, Canada 2 Professor, Civil Eng., Queen
More informationPerformance of Pretensioning Prestressed Concrete Beams with Ruptured Strands Flexurally Strengthened by CFRP Sheets
Perormance o Pretensioning Prestressed Concrete Beams with Ruptured Strands Flexurally Strengthened by CFRP Sheets Thi Thu Dung NGUYEN 1, Koji MATSUMOTO 2, Asami IWASAKI 3, Yuji SATO 3 and Junichiro NIWA
More information