Modellering av restlevetid og kapasitet til spennarmerte brukonstruksjoner med korrosjon- Case Hulvågbrua

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Modellering av restlevetid og kapasitet til spennarmerte brukonstruksjoner med korrosjon- Case Hulvågbrua"

Transcription

1 Modellering av restlevetid og kapasitet til spennarmerte brukonstruksjoner med korrosjon- Case Hulvågbrua Magdalena Paciorek, PhD Candidate SUPERVISORS: Gro Markeset, Professor HIOA Terje Kanstad, Professor NTNU Max Hendriks, Professor NTNU Mahdi Kioumarsi, Associate Professor HIOA

2 PRESTRESSED, PRETENSIONED BRIDGES IN NORWAY >1100 precast, pretensioned beam bridges (NIB/NOT/NOB/other) Ref. : Bruprosjektering-08, NIB-bruer: Håndbok -100, Statens Vegvesen PRECAST, PRETENSIONED BEAM BRIDGES IN NORWAY 40,2 % 59,8 % NIB beam Other types Hafrsfjord, Photo Magda Paciorek

3 PRESTRESSED, PRETENSIONED BRIDGES IN NORWAY Ref. : most-dangerous-road-in-world-terrifying-awe-inspiring/ c 35mm > 190 bridges

4 EFFECT OF CORROSION SMALL φ OF WIRE HIGH TENSILE STRESSES + PITTING CORROSION WIRE BREAK (non-ductile) STRESS CORROSION CRACKING WIRE BREAK (brittle) Hafrsfjord, Photo Magda Paciorek Hafrsfjord, Photo Statens Vegvesen

5 EFFECT OF CORROSION - Cracking - Spalling Hafrsfjordbru, Stavanger

6 EFFECT OF CORROSION WIRE BREAK PROGRESSIVE BREAKING OF WIRES STRAND BREAKING = 7 x Stress REDUCED PRESTRESS REDUCED FLEXURAL STRENGHT Non-corroded strand Corroded strand Strain Ref. : Fumin Li et.al.: Deterioration of tensile behaviour of steel strands corroded by chloride, Journal of Southeast University (Natural Science Edition)

7 EFFECT OF CORROSION ON MECHANICAL BEHAVIOUR OF STRANDS Non-corroded strand (reference) Corroded strand with varying loss of cross- section 0.8%-20.4% Ref. : Zhao-Hui Lu et.al.: An Investigation of Degradation of Mechanical Behaviour of Prestressing Strands Subjected to Chloride Attacking, 5th International Conference on Durability of Concrete Structures, Jun 30 Jul 1, 2016, Shenzhen University, Shenzhen, Guangdong Province, P.R.China

8 EVALUATION OF MAXIMUM MOMENT FOR BREAKING FIRST LAYER OF STRANDS Pm = 29% Pm.o

9 EVALUATION OF MAXIMUM MOMENT FOR BREAKING FIRST LAYER OF STRANDS ASSUMPTION I Only loss of the cross-section of bottom layer: ASSUMPTION II Change in mechanical behaviour of bottom layer: A0 - non-corroded A1 = 3.1% A0 A2 = 6.3% A0 A3 = 12.9% A0 A4 = 16.3% A0 A5 = 19.8% A0 fy=1650mpa fu=1950mpa fy=1700mpa fu=1900mpa Hulvågbrua

10 EVALUATION OF MAXIMUM MOMENT FOR BREAKING FIRST LAYER OF STRANDS Influence of corrosion level on max. moment of breaking bottom layer of strands M corroded/uncorroded % 105,0% 100,0% 95,0% 90,0% 85,0% 80,0% Failure due to crushing of concrete Failure due to breaking of strands Failure due to crushing of concrete 75,0% 0,0% 5,0% 10,0% 15,0% 20,0% 25,0% Loss of cross-section of bottom layer of strands due to corrosion % 17% ASSUMPTION II ASSUMPTION I BREAKING OF ONE LAYER OF STRANDS CAUSE PROGRESSIVE BREAKING OF REMAINING LAYERS OF STRANDS

11 INFLUENCE OF CORROSION ON FLEXURAL BEHAVIOUR OF PRETENSIONED NIB BEAMS - MORE DETAILED ANALYSES NECESSARY TO EVALUATE CHANGES IN LOAD BEARING CAPACITY AND DUCTILITY OF THE BEAM DUE TO PROGRESSIVE BREAKING OF THE STRANDS (LAYERS) - PROGRESSIVE BREAKING OF THE STRANDS (STRAND LAYERS) WILL DEPEND ON CORROSION LEVEL IN REMAINING LAYERS - NO AVAILABLE EXPERIMENTAL ANALYSES ON CORRODED MULTILAYERED PRETENSIONED SPECIMENS - FLEXURAL BEHAVIOUR OF THE NIB-BEAM DEPENDS ON STRANDS ARRANGEMENT - FLEXURAL BEHAVIOUR OF THE BEAM DEPENDS ON MECHANICAL BEHAVIOUR OF THE STRANDS (BOTH CORRODED AND NON-CORRODED)

12 INFLUENCE OF CHLORIDE INGRESS ON CORROSION Strands in corners the most heavily corroded

13 INFLUENCE OF CORROSION ON FLEXURAL BEHAVIOUR OF PRETENSIONED NIB BEAMS Average for whole layer Average for whole layer

14 INFLUENCE OF CORROSION ON FLEXURAL BEHAVIOUR OF PRETENSIONED NIB BEAMS Corrosion on the connection beam-plate When connection beamplate is lost due to corrosion FLEXURAL CAPACITY?

15 INFLUENCE OF CORROSION ON FLEXURAL BEHAVIOUR OF PRETENSIONED NIB BEAMS FLEXURAL FAILURE SHEAR FAILURE

16 SUMMARY AND FURTHER RESEARCH >190 precast, pretensioned bridges in Norway, which might already corrode In some of the bridges visual signs of corrosion were already found, while in some no signs of corrosion were found Pitting corrosion of the strands lead to changes not only in crosssection, but also in mechanical behaviour of the strands (including effect of SCC) When evaluating performance of corroded NIB beam, assumption of decreasing only the cross-section of strand layer can lead to overestimated breaking load (for relevant layer). In reality strand layer will break for lower load value, with different failure mode and much faster than assumed.

17 SUMMARY AND FURTHER RESEARCH Flexural response of the NIB beam signifficantly depends on the mechanical behaviour of corroded and uncorroded strands made of relevant type of steel used in considered bridges. POSSIBILITIES OF TENSILE TEST OF THE STRANDS? Breaking of one layer of strands cause progressive breaking of remaining layers of strands. Progressive breaking of remaining layers will depend on their corrosion level and arrangement of the strands. MORE RESEARCH NEEDED ON PROGRESSIVE BREAKING OF THE CORRODED STRAND LAYERS AS WELL AS ON THE INFLUENCE OF STRAND ARRANGEMENT. No experimental data available for flexural response of multilayered corroded pretensioned beams FUTURE POSSIBILITIES FOR BENDING TEST OF THE CORRODED NIB BEAM?

18 SUMMARY AND FURTHER RESEARCH RESEARCH NEEDED INCLUDING EFFECT OF MORE RELIABLE CORROSION DISTRIBUTION IN CROSS-SECTION POSSIBLE EFFECT OF STRESS REDISTRIBUTION AFTER BREAKING OF THE STRAND. POSSIBILITY FOR MORE FIELD INVESTIGATION TO CHECK AND QUANTIFY CORROSION LEVEL IN STRANDS FOR VARYING STRAND LOCATION? CHECKING THE INFLUENCE OF LOOSING THE COOPERATION WITH BRIDGE DECK ON THE LOAD BEARING CAPACITY OF THE PRETENSIONED BEAM. RESEARCH NEEDED ON INFLUENCE OF CORROSION ON SHEAR CAPACITY

5.4 Analysis for Torsion

5.4 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 information

The Hashemite University Department of Civil Engineering. Dr. Hazim Dwairi. Dr. Hazim Dwairi 1

The Hashemite University Department of Civil Engineering. Dr. Hazim Dwairi. Dr. Hazim Dwairi 1 Department of Civil Engineering Lecture 2.1 Methods of Prestressing Advantages of Prestressing Section remains uncracked under service loads Reduction of steel corrosion (increase durability) Full section

More information

SECTION 1 INTRODUCTION TO POST-TENSIONED CONCRETE DEVELOPED BY THE PTI EDC-130 EDUCATION COMMITTEE

SECTION 1 INTRODUCTION TO POST-TENSIONED CONCRETE DEVELOPED BY THE PTI EDC-130 EDUCATION COMMITTEE SECTION 1 INTRODUCTION TO POST-TENSIONED CONCRETE DEVELOPED BY THE PTI EDC-130 EDUCATION COMMITTEE NOTE: MOMENT DIAGRAM CONVENTION In PT design, it is preferable to draw moment diagrams to the tensile

More information

European Construction Technology Platform

European Construction Technology Platform European Construction Technology Platform Present and future in the design, construction and maintenance of bridges Prof. Giuseppe Mancini Versailles 2006, November, 21 st 22 nd Marcus Vitruvius Pollio

More information

Experimental investigation of the use of CFRP grid for shear strengthening of RC beams

Experimental 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 information

Structural behaviour and failure mechanisms of concrete monoblock railway sleepers

Structural 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 information

REPAIR OF PRECAST PRE-TENSIONED GIRDERS USING EXTERNAL POST-TENSIONING ASIT N. BAXI BAXI ENGINEERING MIGUEL FORERO SUNCOAST POST-TENSION

REPAIR OF PRECAST PRE-TENSIONED GIRDERS USING EXTERNAL POST-TENSIONING ASIT N. BAXI BAXI ENGINEERING MIGUEL FORERO SUNCOAST POST-TENSION REPAIR OF PRECAST PRE-TENSIONED GIRDERS USING EXTERNAL POST-TENSIONING ASIT N. BAXI BAXI ENGINEERING MIGUEL FORERO SUNCOAST POST-TENSION PROJECT INFORMATION Project name: Laketown Wharf Retrofit Location:

More information

Scientific Seminar Design of Steel and Timber Structures SPbU, May 21, 2015

Scientific 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 information

Design Methods of Elements from Cross-Laminated Timber Subjected to Flexure

Design Methods of Elements from Cross-Laminated Timber Subjected to Flexure RIGA TECHNICAL UNIVERSITY INSTITUTE OF STRUCTURAL ENGINEERING AND RECONSTRUCTION A.Vilguts, D.Serdjuks, L.Pakrastins Design Methods of Elements from Cross-Laminated Timber Subjected to Flexure RIGA 2015

More information

1.7 Prestressing Steel

1.7 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 information

Evaluation and Repair of Existing Post- Tensioned Buildings with Paper Wrapped Tendons Experiencing Corrosion Damage

Evaluation and Repair of Existing Post- Tensioned Buildings with Paper Wrapped Tendons Experiencing Corrosion Damage Evaluation and Repair of Existing Post- Tensioned Buildings with Paper Wrapped Tendons Experiencing Corrosion Damage K. Dirk Bondy, S.E. President Seneca Structural Engineering, Inc. The Great American

More information

Precast concrete double-tee beams with thin stems

Precast concrete double-tee beams with thin stems Dapped ends of prestressed concrete thin-stemmed members: Part 1, experimental testing and behavior Amir W. Botros, Gary J. Klein, Gregory W. Lucier, Sami H. Rizkalla, and Paul Zia Precast concrete double-tee

More information

7.1 Transmission of Prestress (Part I)

7.1 Transmission of Prestress (Part I) 7.1 Transmission of Prestress (Part I) This section covers the following topics. Pre-tensioned Members 7.1.1 Pre-tensioned Members The stretched tendons transfer the prestress to the concrete leading to

More information

PERFORMANCE OF RC BRIDGE COLUMNS SUBJECTED TO LATERAL LOADING

PERFORMANCE OF RC BRIDGE COLUMNS SUBJECTED TO LATERAL LOADING Istanbul Bridge Conference August 11-13, 2014 Istanbul, Turkey PERFORMANCE OF RC BRIDGE COLUMNS SUBJECTED TO LATERAL LOADING S. Sotoud 1 and R.S. Aboutaha 2 ABSTRACT Old existing reinforced concrete bridge

More information

TORSION SIMPLIFIED: A FAILURE PLANE MODEL FOR DESIGN OF SPANDREL BEAMS

TORSION 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 information

CHAPTER 7: SERVICEABILITY LIMIT STATES

CHAPTER 7: SERVICEABILITY LIMIT STATES CHAPTER 7: SERVICEABILITY LIMIT STATES 7.1 GENERAL It shall be in accordance with JSCE Standard Specification (Design), 7.1. 7.2 CALCULATION OF STRESS AND STRAIN It shall be in accordance with JSCE Standard

More information

Deflection 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 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 information

REVIEW ON SHEAR SLIP OF SHEAR KEYS IN BRIDGES

REVIEW 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 information

Moment curvature analysis of concrete flexural members confined with CFRP grids

Moment 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 information

Fatigue 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 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 information

with Fillers Department of Civil Engineering, National Taipei University of Technology, Taiwan, R.O.C

with Fillers Department of Civil Engineering, National Taipei University of Technology, Taiwan, R.O.C A Study on the Mechanical Behaviour of the BFRP Decks with Fillers Yeou-Fong Li 1* and Chia-Hou Wu 1 1 Department of Civil Engineering, National Taipei University of Technology, Taiwan, R.O.C * 1, Sec.

More information

Field application of FRP material in Kentucky

Field application of FRP material in Kentucky Field application of FRP material in Kentucky Abheetha Peiris, University of Kentucky (email: abheetha@engr.uky.edu) Issam Harik, University of Kentucky (email: iharik@engr.uky.edu) Abstract Repair and

More information

How to Design a Singly Reinforced Concrete Beam

How 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 information

DISPLACEMENT-BASED SEISMIC DESIGN OF CONCRETE BRIDGES

DISPLACEMENT-BASED SEISMIC DESIGN OF CONCRETE BRIDGES DISPLACEMENT-BASED SEISMIC DESIGN OF CONCRETE BRIDGES V.G. Bardakis 1 and M.N. Fardis 2 1 Post-Doctoral Researcher, Structures Lab, Dept. of Civil Engineering, University of Patras, Patras,Greece 2 Professor

More information

STRENGTHENING STEEL-CONCRETE COMPOSITE BRIDGES WITH HIGH MODULUS CARBON FIBER REINFORCED POLYMER (CFRP) LAMINATES

STRENGTHENING 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 information

Ensuring sufficient robustness to resist

Ensuring sufficient robustness to resist Performance of precast concrete moment frames subjected to column removal: Part 2, computational analysis Yihai Bao, Joseph A. Main, H. S. Lew, and Fahim Sadek This paper presents a computational study

More information

NON-LINEAR STRUCTURAL INTEGRITY ANALYSIS

NON-LINEAR STRUCTURAL INTEGRITY ANALYSIS NON-LINEAR STRUCTURAL INTEGRITY ANALYSIS AHMAD RAHIMIAN, PhD, PE, SE Dr. Ahmad Rahimian., PE, SE is President of Cantor Seinuk Structural Engineers in New York City. An expert in the behaviour of steel

More information

EVALUATION & REPAIR OF CORROSION DAMAGED ROOF LIFT SLAB WITH WIRE POST-TENSIONING SYSTEM (BUTTON HEADS)

EVALUATION & REPAIR OF CORROSION DAMAGED ROOF LIFT SLAB WITH WIRE POST-TENSIONING SYSTEM (BUTTON HEADS) EVALUATION & REPAIR OF CORROSION DAMAGED ROOF LIFT SLAB WITH WIRE POST-TENSIONING SYSTEM (BUTTON HEADS) (C) COPYRIGHT POST-TENSIONING INSTITUTE, ALL RIGHT RESERVED 1 of 23 The following presentation discusses

More information

Selection, installation and USage of HatcHeS

Selection, installation and USage of HatcHeS Selection, installation and USage of HatcHeS Tech NoTe Hatches for utility structures are manufactured from cast iron, aluminum and steel. The casting requirements, in regard to concrete cover and required

More information

ATI 2205 ATI Technical Data Sheet. Duplex Stainless Steel GENERAL PROPERTIES. (UNS S31803 and S32205)

ATI 2205 ATI Technical Data Sheet. Duplex Stainless Steel GENERAL PROPERTIES. (UNS S31803 and S32205) ATI 2205 Duplex Stainless Steel (UNS S31803 and S32205) GENERAL PROPERTIES ATI 2205 alloy (UNS S31803 and/or S32205) is a nitrogen-enhanced duplex stainless steel alloy. The nitrogen serves to significantly

More information

Effect of Bar-cutoff and Bent-point Locations on Debonding Loads in RC Beams Strengthened with CFRP Plates

Effect 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 information

Modelling of RC moment resisting frames with precast-prestressed flooring system

Modelling 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 information

HIGH PERFORMANCE CONCRETE. by John J. Roller CTLGroup

HIGH PERFORMANCE CONCRETE. by John J. Roller CTLGroup HIGH PERFORMANCE CONCRETE by John J. Roller CTLGroup Early Louisiana HPC Research Law & Rasoulian (1980) Adelman & Cousins (1990) Bruce, Russell & Roller (1990-1993) Law & Rasoulian (1980) Concrete strengths

More information

Parametric Study of Continuous Concrete Beam Prestressed with External Tendon

Parametric Study of Continuous Concrete Beam Prestressed with External Tendon Parametric Study of Continuous Concrete Beam Prestressed with External Tendon Assistant Professor, College of Engineering, Diyala University, Iraq ABSTRACT This paper presents the results of a parametric

More information

Deformation Capacity of RC Structural Walls without Special Boundary Element Detailing

Deformation Capacity of RC Structural Walls without Special Boundary Element Detailing Proceedings of the Tenth Pacific Conference on Earthquake Engineering Building an Earthquake-Resilient Pacific 6-8 November 2015, Sydney, Australia Deformation Capacity of RC Structural Walls without Special

More information

Route 360 Inverted T-beams. Carin Roberts-Wollmann Virginia Tech Tommy Cousins Clemson University Fatmir Menkulasi Louisiana Tech

Route 360 Inverted T-beams. Carin Roberts-Wollmann Virginia Tech Tommy Cousins Clemson University Fatmir Menkulasi Louisiana Tech Route 360 Inverted T-beams Carin Roberts-Wollmann Virginia Tech Tommy Cousins Clemson University Fatmir Menkulasi Louisiana Tech Background Outline Scope and Objectives Development and Testing Topping

More information

Influence on Durability of Concrete Slab in Composite Bridge due to Use of Elastic Supports

Influence on Durability of Concrete Slab in Composite Bridge due to Use of Elastic Supports Influence on Durability of Concrete Slab in Composite Bridge due to Use of Elastic Supports Joang-Jin PARK Shigeyuki MATSUI Hiroshi HIGASHIYAMA Keizo EGASHIRA Abstract: When existing simple span bridges

More information

CORROSION MONITORING IN REINFORCED CONCRETE BY ACOUSTIC EMISSION

CORROSION MONITORING IN REINFORCED CONCRETE BY ACOUSTIC EMISSION Abstract CORROSION MONITORING IN REINFORCED CONCRETE BY ACOUSTIC EMISSION MASAYASU OHTSU and YUICHI TOMODA Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, JAPAN Cracking of concrete due to corrosion

More information

Finite Element Modelling of RC Beams Retrofitted with CFRP Fabrics

Finite Element Modelling of RC Beams Retrofitted with CFRP Fabrics SP-230 29 Finite Element Modelling of RC Beams Retrofitted with CFRP Fabrics by H.B. Pham and R. Al-Mahaidi Synopsis: In this paper, non-linear finite element modelling of debonding failure of rectangular

More information

Drift Compatibility of Corner Joints. NEES Webinar #2 December 12, 2014

Drift Compatibility of Corner Joints. NEES Webinar #2 December 12, 2014 Seismic Performance of Architectural Precast Panel Systems Drift Compatibility of Corner Joints Seismic Performance of Architectural Precast Panel Systems Section Objectives Panel System Seismic Drift

More information

CYCLIC BEHAVIOR OF SLENDER R/C COLUMNS WITH INSUFFICIENT LAP SPLICE LENGTH

CYCLIC 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 information

CONCREEP 10. September 21-23, 2015 Vienna, Austria. SPONSORED BY RILEM Engineering Mechanics Institute of ASCE

CONCREEP 10. September 21-23, 2015 Vienna, Austria. SPONSORED BY RILEM Engineering Mechanics Institute of ASCE CONCREEP 1 Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures PROCEEDINGS OF THE 1TH INTERNATIONAL CONFERENCE ON MECHANICS AND PHYSICS OF CREEP, SHRINKAGE, AND

More information

Load carrying capacity of shear wall t-connections reinforced with high strength wire ropes

Load carrying capacity of shear wall t-connections reinforced with high strength wire ropes Downloaded from orbit.dtu.dk on: Feb 19, 2018 Load carrying capacity of shear wall t-connections reinforced with high strength wire ropes Jørgensen, Henrik B.; Bryndom, Thor; Larsen, Michael; Hoang, Linh

More information

Strengthening 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 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 information

Deterioration of Prestressed Concrete Bridge Beams in New Zealand

Deterioration of Prestressed Concrete Bridge Beams in New Zealand Deterioration of Prestressed Concrete Bridge Beams in New Zealand S M Bruce, Opus International Consultants Ltd. Sheldon is the manager of the Asset Management Group at Central Laboratories, Opus International

More information

Seismic design of bridges

Seismic design of bridges NATIONAL TECHNICAL UNIVERSITY OF ATHENS LABORATORY FOR EARTHQUAKE ENGINEERING Seismic design of bridges Lecture 1 Ioannis N. Psycharis Bridge types I. N. Psycharis Seismic design of bridges 2 Common bridge

More information

INNOVATIVE HYBRID WEARING SURFACES FOR FRP BRIDGE DECKS

INNOVATIVE HYBRID WEARING SURFACES FOR FRP BRIDGE DECKS 16 TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS INNOVATIVE HYBRID WEARING SURFACES FOR FRP BRIDGE DECKS Riyad S. Aboutaha Syracuse University Keywords: FRP decks, bridge decks, wearing surfaces Abstract

More information

Steel fibres Structural applications

Steel fibres Structural applications WireSolutions Steel fibres Structural applications TAB-Slab TAB-Structural TAB-Deck TAB-Raft ArcelorMittal & WireSolutions Transforming tomorrow ArcelorMittal ArcelorMittal is the world leader in the steel

More information

DESIGN FOR PROGRESSIVE COLLAPSE 1

DESIGN FOR PROGRESSIVE COLLAPSE 1 Your Partner in Structural Concrete Design TN447_progressive_collapse_110713 DESIGN FOR PROGRESSIVE COLLAPSE 1 Bijan O Aalami 2 This Technical Note outlines the design of column-supported conventionally

More information

SERVICEABILITY LIMIT STATES OF CONCRETE BEAMS PRESTRESSED BY CFRP BARS

SERVICEABILITY 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 information

Resistance of railway concrete sleepers to impact loading

Resistance of railway concrete sleepers to impact loading University of Wollongong Research Online Faculty of Engineering - Papers (Archive) Faculty of Engineering and Information Sciences 27 Resistance of railway concrete sleepers to impact loading Alexander

More information

Fiber Reinforced Concrete (FRC)

Fiber Reinforced Concrete (FRC) Progress in Fiber Reinforced Concrete (FRC) Concrete is relatively brittle, and its tensile strength is typically only about one tenths of its compressive strength. Regular concrete is therefore normally

More information

Section A A: Slab & Beam Elevation

Section A A: Slab & Beam Elevation CE 331, Spring 2011 Flexure Strength of Reinforced Concrete s 1 / 5 A typical reinforced concrete floor system is shown in the sketches below. The floor is supported by the beams, which in turn are supported

More information

FLAT PLATE AND FLAT SLAB CONSTRUCTION

FLAT PLATE AND FLAT SLAB CONSTRUCTION FLAT PLATE AND FLAT SLAB CONSTRUCTION Neil M. Hawkins, Professor Emeritus, University of Illinois A Tribute to the Lasting Contributions and Legacy of Our Friend And Colleague Dr. W Gene Corley ACI Convention,

More information

LATERAL LOAD BEHAVIOR OF UNBONDED POST-TENSIONED HYBRID COUPLED WALLS. Qiang SHEN Graduate Research Assistant. Yahya C. KURAMA Assistant Professor

LATERAL LOAD BEHAVIOR OF UNBONDED POST-TENSIONED HYBRID COUPLED WALLS. Qiang SHEN Graduate Research Assistant. Yahya C. KURAMA Assistant Professor LATERAL LOAD BEHAVIOR OF UNBONDED POST-TENSIONED HYBRID COUPLED WALLS Qiang SHEN Graduate Research Assistant Yahya C. KURAMA Assistant Professor University of Notre Dame, Civil Engineering and Geological

More information

DESIGN GUIDELINES FOR BRIDGE DECK SLABS REINFORCED by CFRP and GFRP

DESIGN 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 information

ACTION OF GLUED STEEL PLATES IN STRENGTHENING OF STRUCTURES

ACTION OF GLUED STEEL PLATES IN STRENGTHENING OF STRUCTURES ACTION OF GLUED STEEL PLATES IN STRENGTHENING OF STRUCTURES Seppo Huovinen ABSTRACT Rakenteiden Mekaniikka, Vol.29 Nro 3-4, 1996, s. 69-74 The strengthening of reinforced concrete and steel beams with

More information

STRENGTHENING WITH WING WALLS FOR SEISMICALLY SUBSTANDARD R/C BEAM-COLUMN JOINTS

STRENGTHENING WITH WING WALLS FOR SEISMICALLY SUBSTANDARD R/C BEAM-COLUMN JOINTS 10NCEE Tenth U.S. National Conference on Earthquake Engineering Frontiers of Earthquake Engineering July 21-25, 2014 Anchorage, Alaska STRENGTHENING WITH WING WALLS FOR SEISMICALLY SUBSTANDARD R/C BEAM-COLUMN

More information

TECHNICAL SPECIAL PROVISION FOR CONCRETE REPAIRS. Financial Project ID , &

TECHNICAL SPECIAL PROVISION FOR CONCRETE REPAIRS. Financial Project ID , & TECHNICAL SPECIAL PROVISION FOR CONCRETE REPAIRS Financial Project ID 429140-1-52-01, 429140-2-52-01 & 428267-1-52-01 The official record of this Technical Special Provision is the electronic file signed

More information

four design methods & beams Allowable Stress Design Limit State Design Allowable Stress Design

four design methods & beams Allowable Stress Design Limit State Design Allowable Stress Design APPLIED ARCHITECTURAL STRUCTURES: STRUCTURAL ANALYSIS AND SYSTES DR. ANNE NICHOLS FALL 013 lecture four Allowable Stress Design historical method a.k.a. working stress, stress design stresses stay in ELASTIC

More information

CFRP CONCRETE PROTECTION AND STRENGTHENING

CFRP CONCRETE PROTECTION AND STRENGTHENING CFRP CONCRETE PROTECTION AND STRENGTHENING Graham Bettis, P.E. TxDOT Bridge Construction & Maintenance Section TxDOT s Use of Carbon Fiber Reinforced Polymer Wraps Until now, used primarily for confinement

More information

Usability s Perspectives of Recycled Aggregate Concretes (RAC) for Structural Applications

Usability s Perspectives of Recycled Aggregate Concretes (RAC) for Structural Applications Usability s Perspectives of Recycled Aggregate Concretes (RAC) for Structural Applications MARIO BASSAN, FULL PROFESSOR MARCO QUATTRONE, ENG. PHD CANDIDATE VITTORIO BASILICO, DR. ENG. Wascon 2009 Lyon

More information

Reinforced Concrete Corrosion and Protection

Reinforced Concrete Corrosion and Protection www.crl.issres.net Vol. 3(1) - March 212 Reinforced Concrete Corrosion and Protection Zeinab A. Etman C Department of Civil Engineering, Faculty of Engineering, Mnoufiya University, EGYPT. Abstract This

More information

AN ANALYSIS OF THE BEHAVIOR OF HYBRID STEEL BEAM RC COLUMN CONNECTION

AN ANALYSIS OF THE BEHAVIOR OF HYBRID STEEL BEAM RC COLUMN CONNECTION 13 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August 1-6, 2004 Paper No. 2398 AN ANALYSIS OF THE BEHAVIOR OF HYBRID STEEL BEAM RC COLUMN CONNECTION Jose C. ADAJAR 1, Toshiyuki

More information

Cement grouted steel bars in glulam

Cement grouted steel bars in glulam Cement grouted steel bars in glulam Buchanan, Andrew H 1, Moss, Peter J 1 and Eistetter, Sabine 2 ABSTRACT This paper describes an experimental investigation into the use of cement grout for bonding threaded

More information

Field Load Testing of the First Vehicular Timber Bridge in Korea

Field Load Testing of the First Vehicular Timber Bridge in Korea Field Load Testing of the First Vehicular Timber Bridge in Korea Ji-Woon Yi Ph.D. Student Department of Civil & Environmental Engineering Seoul National University Seoul, Korea jwyi@sel.snu.ac.kr Wonsuk

More information

Reinforced Concrete Column Design

Reinforced Concrete Column Design Reinforced Concrete Column Design Compressive Strength of Concrete f cr is the average cylinder strength f c compressive strength for design f c ~2500 psi - 18,000 psi, typically 3000-6000 psi E c estimated

More information

Site Director: Dr. Sami Rizkalla Associate Director: Dr. Rudi Seracino Date: February 1 st, 2011

Site Director: Dr. Sami Rizkalla Associate Director: Dr. Rudi Seracino Date: February 1 st, 2011 Site Director: Dr. Sami Rizkalla Associate Director: Dr. Rudi Seracino Date: February 1 st, 2011 AltusGroup, Inc. Freyssinet, Inc. Fyfe Company, LLC Grancrete, Inc. Martin Marietta Composites Nippon Steel

More information

Shear Capacity of Prestressed Concrete Beams

Shear Capacity of Prestressed Concrete Beams 2007-47 Shear Capacity of Prestressed Concrete Beams Take the steps... Research...Knowledge...Innovative Solutions! Transportation Research Technical Report Documentation Page 1. Report No. 2. 3. Recipients

More information

Strengthening steel bridges with new high modulus CFRP materials

Strengthening steel bridges with new high modulus CFRP materials Strengthening steel bridges with new high modulus CFRP materials M. Dawood, E. Sumner & S. Rizkalla North Carolina State University Raleigh, North Carolina, U.S.A. D. Schnerch, Wiss, Janney, Elstner Associates,

More information

Flexural Behaviour of Precast, Prestressed Ribbed RPC Bottom Panels

Flexural Behaviour of Precast, Prestressed Ribbed RPC Bottom Panels Send Orders for Reprints to reprints@benthamscience.ae The Open Civil Engineering Journal, 2015, 9, 535-543 535 Open Access Flexural Behaviour of Precast, Prestressed Ribbed RPC Bottom Panels Zheng Wenzhong*,

More information

Bond Characteristics of ASTM A1035 Steel Reinforcing Bars

Bond 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 information

Design Aids of NU I-Girders Bridges

Design Aids of NU I-Girders Bridges Nebraska Transportation Center Report SPR-P1(09) P322 Final Report 26-1120-0042-001 Design Aids of NU I-Girders Bridges Kromel E. Hanna, Ph.D. Department of Civil Engineering University of Nebraska-Lincoln

More information

PRELOADING 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 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 information

AASHTOWare BrD 6.8. BrR and BrD Tutorial. PS7-3 Stem PS Bridge Example

AASHTOWare BrD 6.8. BrR and BrD Tutorial. PS7-3 Stem PS Bridge Example AASHTOWare BrD 6.8 BrR and BrD Tutorial PS7-3 Stem PS Bridge Example BrR and BrD Training PS7 3 Stem PS Bridge Example From the Bridge Explorer create a new bridge and enter the following description data.

More information

DEGRADATION MECHANISMS AND SERVICE LIFE OF CONCRETE SLABS OF COMPOSITE BRIDGES

DEGRADATION MECHANISMS AND SERVICE LIFE OF CONCRETE SLABS OF COMPOSITE BRIDGES DEGRADATION MECHANISMS AND SERVICE LIFE OF CONCRETE SLABS OF COMPOSITE BRIDGES J.- C. DOTREPPE Laboratory of Bridges and Structural Engineering, Civil Engineering, University of Liège, Belgium Durability

More information

HYBRID MOMENT FRAMES AND UNBONDED PT SHEAR WALLS

HYBRID MOMENT FRAMES AND UNBONDED PT SHEAR WALLS HYBRID MOMENT FRAMES AND UNBONDED PT SHEAR WALLS Opportunities Resulting From Recent ACI 318 Code Changes and the Work of ACI ITG s 1 and 5 Neil M. Hawkins, Professor Emeritus, University of Illinois PTI

More information

Stability of Precast/Prestressed Concrete Bridge Girders

Stability of Precast/Prestressed Concrete Bridge Girders Stability of Precast/Prestressed Concrete Bridge Girders Roy L. Eriksson, P.E. - Eriksson Technologies, Inc. PCEF Committee - August 20, 2015, Raleigh, NC Copyright 2015 Eriksson Technologies, Inc. 1 Roy

More information

Effect of FRP strengthening on the behavior of shear walls with opening

Effect 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 information

FINITE 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 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 information

Rotational capacity of railway prestressed concrete sleeper under static hogging moment

Rotational capacity of railway prestressed concrete sleeper under static hogging moment University of Wollongong Research Online Faculty of Engineering - Papers Faculty of Engineering 26 Rotational capacity of railway prestressed concrete sleeper under static hogging moment S. Kaewunruen

More information

POST-TENSIONING APPLICATION AND TECHNOLOGY. Moe Kyaw Aung

POST-TENSIONING APPLICATION AND TECHNOLOGY. Moe Kyaw Aung POST-TENSIONING APPLICATION AND TECHNOLOGY Moe Kyaw Aung Overview 1. Background 2. Basic Design Concept 3. Application and Benefits 4. Components of Post-tensioning System 5. Installation Process 6. Construction

More information

Flexural Behaviour of External Reinforced Concrete Beams

Flexural 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 information

THE 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) 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 information

Development of a rational design methodology for precast concrete slender spandrel beams: Part 2, analysis and design guidelines

Development of a rational design methodology for precast concrete slender spandrel beams: Part 2, analysis and design guidelines Development of a rational design methodology for precast concrete slender spandrel beams: Part 2, analysis and design guidelines Gregory Lucier, Catrina Walter, Sami Rizkalla, Paul Zia, and Gary Klein

More information

ASSESSMENT OF HOLLOW-CORE FLOORS FOR SEISMIC PERFORMANCE. Richard Fenwick, Des Bull and Debra Gardiner

ASSESSMENT OF HOLLOW-CORE FLOORS FOR SEISMIC PERFORMANCE. Richard Fenwick, Des Bull and Debra Gardiner ISSN 1172-9511 ASSESSMENT OF HOLLOW-CORE FLOORS FOR SEISMIC PERFORMANCE By Richard Fenwick, Des Bull and Debra Gardiner Research Report 2010-02 Department of Civil and Natural Resource Engineering University

More information

GFRP HOLLOW-CORE REBARS FOR CONCRETE BEAMS

GFRP 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 information

AASHTOWare BrR 6.8 Steel Tutorial Steel Plate Girder Using LRFR Engine

AASHTOWare BrR 6.8 Steel Tutorial Steel Plate Girder Using LRFR Engine AASHTOWare BrR 6.8 Steel Tutorial Steel Plate Girder Using LRFR Engine STL6 - Two Span Plate Girder Example 1'-6" 37'-0" 34'-0" 1'-6" 8 1/2" including 1/2" integral wearing surface FWS @ 25 psf 3'-6" 3

More information

FRP FOR CONSTRUCTION IN JAPAN

FRP FOR CONSTRUCTION IN JAPAN FRP FOR CONSTRUCTION IN JAPAN UEDA Tamon 1 SUMMARY This paper briefly introduces the current situation of FRP related materials, FRP reinforcement for concrete (and steel) structures and FRP shape, in

More information

DESIGN OF STEEL FIBRE REINFORCED CONCRETE BEAMS USING THE NEW FIB MODEL CODE 2010 AN EVALUATIVE

DESIGN OF STEEL FIBRE REINFORCED CONCRETE BEAMS USING THE NEW FIB MODEL CODE 2010 AN EVALUATIVE 147 Paper No. 739 DESIGN OF STEEL FIBRE REINFORCED CONCRETE BEAMS USING THE NEW FIB MODEL CODE 2010 AN EVALUATIVE AMMAR ABID, K. B. FRANZEN 148 Ammar Abid, K. B. Franzen 72 nd Annual Session of Pakistan

More information

Transverse Sub-Assemblage Testing of the Inverted-T Bridge System

Transverse Sub-Assemblage Testing of the Inverted-T Bridge System Transverse Sub-Assemblage Testing of the Inverted-T Bridge System Matthew S. Mercer Thesis submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of

More information

ANALYSIS OF CONTINUOUS AND SEGMENTED PIPELINE IN LIQUEFIABLE SOIL

ANALYSIS OF CONTINUOUS AND SEGMENTED PIPELINE IN LIQUEFIABLE SOIL ANALYSIS OF CONTINUOUS AND SEGMENTED PIPELINE IN LIQUEFIABLE SOIL by Durga Prasad Reddy, Neelima Satyam in 5th International Conference on Integrity - Reliability - Failure Report No: IIIT/TR/2016/-1 Centre

More information

Shear and Flexural Capacity of High Strength Prestressed Concrete Bridge Girders

Shear and Flexural Capacity of High Strength Prestressed Concrete Bridge Girders Utah State University DigitalCommons@USU All Graduate Theses and Dissertations Graduate Studies 7-2013 Shear and Flexural Capacity of High Strength Prestressed Concrete Bridge Girders Arek Tilmann Higgs

More information

Experimental Investigation of Precast, Prestressed Inverted- Tee Girders with Large Web Openings

Experimental Investigation of Precast, Prestressed Inverted- Tee Girders with Large Web Openings Experimental Investigation of Precast, Prestressed Inverted- Tee Girders with Large Web Openings James M. Thompson, Ph.D. Assistant Professor Department of Civil Engineering Ohio University Athens, Ohio

More information

EXPERIMENTAL STUDY ON PARTIAL REPLACEMENT OF CEMENT WITH METAKAOLIN AND SAND WITH QUARRY DUST OF REINFORCED CONCRETE BEAM.

EXPERIMENTAL STUDY ON PARTIAL REPLACEMENT OF CEMENT WITH METAKAOLIN AND SAND WITH QUARRY DUST OF REINFORCED CONCRETE BEAM. EXPERIMENTAL STUDY ON PARTIAL REPLACEMENT OF CEMENT WITH METAKAOLIN AND SAND WITH QUARRY DUST OF REINFORCED CONCRETE BEAM. 1 O.BALARAMIREDDY *, 2 Ms. S. SIVAKAMASUNDARI 1 P.G Student 2 Assistant Professor

More information

ON DRIFT LIMITS ASSOCIATED WITH DIFFERENT DAMAGE LEVELS. Ahmed GHOBARAH 1 ABSTRACT

ON DRIFT LIMITS ASSOCIATED WITH DIFFERENT DAMAGE LEVELS. Ahmed GHOBARAH 1 ABSTRACT ON DRIFT LIMITS ASSOCIATED WITH DIFFERENT DAMAGE LEVELS Ahmed GHOBARAH ABSTRACT Performance objectives in performance-based design procedures have been described in several ways according to the operational

More information

Title Page: Modeling & Load Rating of Two Bridges Designed with AASHTO and Florida I-Beam Girders

Title Page: Modeling & Load Rating of Two Bridges Designed with AASHTO and Florida I-Beam Girders Catbas, Darwash, Fadul / 0 0 0 Title Page: Modeling & Load Rating of Two Bridges Designed with AASHTO and Florida I-Beam Girders F.N. Catbas, H. Darwash and M. Fadul Dr. F. Necati Catbas, P.E. Associate

More information

CHAPTER 11: PRESTRESSED CONCRETE

CHAPTER 11: PRESTRESSED CONCRETE CHAPTER 11: PRESTRESSED CONCRETE 11.1 GENERAL (1) This chapter gives general guidelines required for the design of prestressed concrete structures or members with CFRM tendons or CFRM tendons in conjunction

More information

SUNSHINE SKYWAY BRIDGE

SUNSHINE SKYWAY BRIDGE SUNSHINE SKYWAY BRIDGE Retrofit of the Post-Tensioned Precast Transition Pier Columns on the Sunshine Skyway Bridge Presented by: Antonio Ledesma, P.E. May 7, 2012 SUNSHINE SKYWAY BRIDGE, FLORIDA Presentation

More information

Anchorage Failure and Shear Failure of RC Exterior Beam-Column Joint

Anchorage Failure and Shear Failure of RC Exterior Beam-Column Joint Anchorage Failure and Shear Failure of RC Exterior Beam-Column Joint Y. Goto, K. Nishimura, H. Yamazaki Hokkaido University, Japan A. Kitano Maebashi Institute of echnology, Japan SUMMARY: In the exterior

More information