Gen. midas Gen. Advanced Webinar. midas Gen. Date: Aug 28 th, 2012 Topic: Concrete Building Design Presenter: Naga Ravi Kiran

Transcription

1 MIDAS On-Demand Service midas Gen Advanced Webinar Date: Aug 28 th, 2012 Topic: Concrete Building Design Presenter: Naga Ravi Kiran Bridging Your Innovations to Realities Gen 1

2 MIDAS On-Demand Service Contents 1. Introduction of Design Features 2. Design of RC Building 3. Capacity Design for RC Building 4. Q & A Bridging Your Innovations to Realities Gen 2

3 Design Procedure One Stop Solution MIDAS for Building On-Demand Service General Structures 1. Introduction of Design Features Design Type Steel Steel : Steel code check Steel Optimal Design / Displacement Optimal Design RC Concrete : Concrete code design Concrete code check RC Capacity Design Meshed Slab/ Wall Design Footing Footing : design 3 3

4 MIDAS On-Demand Service Design Feature (available in midas Gen) 4

5 Design Procedure Introduction One Stop Solution MIDAS for Building On-Demand Service General Structures Available Design Code Gen 2010 (v2.1) RC Design Steel Design SRC Design ACI318 AISC-LRFD SSRC79 Eurocode 2, Eurocode 8 AISC-ASD JGJ138 BS8110 AISI-CFSD CECS28 IS:456 & IS:13920 Eurocode 3 AIJ-SRC CSA-A23.3 BS5950 TWN-SRC GB50010 IS:800 AIK-SRC AIJ-WSD CSA-S16-01 KSSC-CFT TWN-USD GBJ17, GB50017 Footing Design AIK-USD, WSD AIJ-ASD ACI318 KSCE-USD TWN-ASD, LSD BS8110 KCI-USD AIK-ASD, LSD, CFSD Slab Design KSCE-ASD Eurocode 2 KSSC-ASD Gen 2011 (v1.1) RC Design Steel Design Composite Design Eurocode 2 (Irregular Section) Eurocode3(Irregular Section) Eurocode 4 (Irregular Section) Footing Design Eurocode 2 (L, interted T) 5 5

6 2. Design of RC Building MIDAS On-Demand Service PURPOSE To Learn RC Frame and Wall Design Features 6

7 Design Procedure One Stop Solution MIDAS for Building On-Demand Service General Structures RC Design Limitation (Section) Available Section Types 7 7

8 Design Procedure One Stop Solution MIDAS for Building On-Demand Service General Structures Difference between Design and Checking Design Based on the section size and the factored load obtained from the most unfavorable load combination, rebar data such as rebar size and spacing are determined. Therefore, design can be performed when the section size is determined without rebar data. Checking Strength verification can be performed by automatic design or by using the information of rebars (diameter, number and design parameters) entered by the user. The results appear in blue when the strength verifications for the given section properties and rebars are satisfactory, otherwise they appear in red. Automatic Design by Gen Manual Calculation Design Rebar Input Automatic Rebar update Modify Rebar Input Data Strength Verification with Updated Rebars Check 8 8

9 Design Procedure One Stop Solution MIDAS for Building On-Demand Service General Structures Ultimate Limit State Design (3) 9 9

10 Design Procedure One Stop Solution MIDAS for Building On-Demand Service General Structures Meshed slab and wall design Slab and wall design for meshed plate elements as per Eurocode2-1-1:2004 Slab design for non-orthogonal reinforcement directions based on the Wood-Armer formula Smooth moment and shear forces Automatic generation of Static wind and seismic loads for flexible floors Detailing for local ductility Slab flexural design Slab serviceability checking Punching shear check result Wall design 10 10

11 Design Procedure One Stop Solution MIDAS for Building On-Demand Service General Structures Wall Design Wall design results are provided in contour, detailed rep ort, and design force table. Also, concrete stress (σ cd ) ca n be checked with νf cd. The following results are provided from wall design: Rebar spacing and diameter Required rebar area & Required rebar ratio Resistance ratio Members requiring reinforcement In locations where σ Edy is tensile or σ Edx σ Edy τ 2 Edxy Members not requiring reinforcement In locations where σ Edx and σ Edy are both compressive and σ Edx σ Edy > τ 2 Edxy Limitation in concrete stress σ cd νf cd 11 11

12 MIDAS On-Demand Service Wall element Division of Wall element between story is not allowed. 12

13 MIDAS On-Demand Service Design of Multi Story RC Building 13

14 MIDAS On-Demand Service Typical Sectional Plan 14

15 MIDAS On-Demand Service Typical Floor Elevation 15

16 MIDAS On-Demand Service Wall ID 16

17 MIDAS On-Demand Service Overview (Slab Design) 17

18 MIDAS On-Demand Service Overview (Slab Design) 18

19 3. Capacity Design for RC Building MIDAS On-Demand Service PURPOSE To Learn Capacity Design features 19

20 Design Procedure One Stop Solution MIDAS for Building On-Demand Service General Structures Seismic Design procedure as per EN1998-1:2004 Performance Requirement Ground Condition Seismic Action Seismic Zone Representation of seismic action Combination of Seismic Action Criteria for Structural Regularity Seismic Analysis [Method of Analysis] Lateral Force method of Analysis Modal Response Spectrum Analysis Pushover Analysis Inelastic Time History Analysis Safety Verification Capacity Design & Detailing 20 20

21 Design Procedure One Stop Solution MIDAS for Building On-Demand Service General Structures Capacity Design Feature structures to provide the appropriate amount of ductility in the corresponding ductility classes. Automatic capacity design capability for beam, column, wall and beam-column joint EN : 2004 (DCM/DCH), NTC2008 (CD B, CD A ), ACI Design action effects are calculated in accordance with the capacity design rule. Special provision for ductile primary seismic walls is considered. Detailing for local ductility is considered. - max/min reinforcement ratio of the tension zone - the spacing of hoops within the critical region - mechanical volumetric ratio of confining hoops with the critical regions Capacity design shear forces on beams Define ductility class and check design results Design envelope moments in walls 21 21

22 Design Procedure One Stop Solution MIDAS for Building On-Demand Service General Structures Design member forces (Design moments) Where, M Rb : Beam moment resistance M ce : column member force due to seismic load case 22 22

23 Design Procedure One Stop Solution MIDAS for Building On-Demand Service General Structures Design member forces (Design shear forces) Capacity design values of shear forces on beams Where, M Rb: Beam moment resistance M Rc: Column moment resistance (calcul ated using same axial force ratio in PM interaction curve) M ce: Bending moment of column due to seismic load case Capacity design shear force in columns 23 23

24 Design Procedure One Stop Solution MIDAS for Building On-Demand Service General Structures Design member forces (Wall design forces) Wall systems Dual systems Design envelope for bending moments in slender walls Design envelope of the shear forces in the walls of a dual system 24 24

25 MIDAS On-Demand Service Capacity Design of Multi Story RC Building 25

26 midas Why Gen midas Gen Integrated Design System MIDAS for buildings On-Demand General Service Structures GSD (General Section Designer) Definition of any irregular crosssection Section properties P-M, P-My-Mz, M-M interaction curves Calculation of Section Capacity (in flexure) and Safety Ratio based on member forces. Moment-Curvature curve. Plot of Stress contours All the above features are supported for: RC sections, Steel sections and Composite sections. Stress Contour Moment- Curvature MIDAS Information Technology Co., Ltd

27 midas Why Gen midas Gen Integrated Design System MIDAS for buildings On-Demand General Service Structures GSD (General Section Designer) MIDAS Information Technology Co., Ltd

28 midas Why Gen midas Gen Integrated Design System MIDAS for buildings On-Demand General Service Structures Dynamic Report Generator Word format reports can automatically be generated for selected input & output data (figures, tables, graphs, and text). MIDAS Information Technology Co., Ltd

29 midas Why Gen midas Gen Integrated Design System MIDAS for buildings On-Demand General Service Structures Dynamic Report Generator Using Dynamic Report Regenerator function, changes of a model file are automatically updated in the report. User defined report format can be used and saved. Drag & Drop 1 MIDAS Information Technology Co., Ltd

30 MIDAS On-Demand Service Any Questions? Thank You! For more information, please visit us at Bridging Your Innovations to Realities Gen 30