Simplification of Softened Strut-and-Tie Model for Strength Prediction of Discontinuity Regions

2017 ◽  
Vol 114 (5) ◽  
Author(s):  
Shyh-Jiann Hwang ◽  
Ren-Jie Tsai ◽  
Weng-Kin Lam ◽  
Jack P. Moehle
Keyword(s):  
Strength Prediction ◽  
Strut And Tie ◽  
Strut And Tie Model

Shear Strength Prediction of Reinforced Concrete Deep Beams Using Strut-and-Tie Model

2014 ◽  
Vol 931-932 ◽  
pp. 468-472
Author(s):  
Piyoros Tasenhod ◽  
Jaruek Teerawong
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Failure Modes ◽  
Reinforced Concrete Beams ◽  
Strength Prediction ◽  
Test Results ◽  
Shear Span ◽  
Strut And Tie ◽  
Effective Depth ◽  
Strut And Tie Model

Shear strength prediction of simple deep reinforced concrete beams by method of strut-and-tie model is presented in this paper. The tested specimens were designed according to Appendix A of ACI 318-11 code with variations of shear span-to-effective depth ratios and ratios of horizontal and vertical crack-controlling reinforcement. Test results revealed that at the same shear span-to-effective depth ratio, the various crack-controlling reinforcements significantly influenced on strength reduction coefficients of strut and failure modes. When the shear span-to-effective depth ratios were increased, failure modes changed from splitting diagonal strut to flexural-shear failure. Based on the test results, the proposed model was compared with Appendix A of ACI 318-11code.

scholarly journals Punching shear in flat slabs by strut and tie model

2021 ◽  
Vol 14 (5) ◽  
Author(s):  
Ricardo José Carvalho Silva ◽  
Dênio Ramam Carvalho de Oliveira ◽  
Nívea Gabriela Benevides de Albuquerque ◽  
Thiago Andrade Gomes ◽  
Aaron Kadima Lukanu Lwa Nzambi
Keyword(s):  
Shear Resistance ◽  
Punching Shear ◽  
Strength Prediction ◽  
Design Codes ◽  
Test Results ◽  
Main Design ◽  
Strut And Tie ◽  
Flat Slabs ◽  
The One ◽  
Strut And Tie Model

Abstract Research on behavior of flat slabs under punching shear, performed by Kinnunen, Regan and Muttoni influenced the main design recommendations. Meanwhile, studies about strut and tie model developed by Schlaich for beams, deep beams and corbels also influenced these design codes. This work aimed to adapt the strut and tie model for the punching shear resistance analysis in flat slabs. The punching shear resistance of 30 flat slabs verified through strut and tie model was compared to the one designed following Brazilian, American and European codes recommendation. Subsequently, this same model was validated by comparing the test results of 32 flat slabs. The strut and tie model results, when compared with the test results, showed a better average than those from codes, and the modified strut and tie model can become an alternative for punching shear strength prediction.

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