Grid Strut-Tie Model – Shear Wall with Openings

A shearwall with two openings, which was used for the illustration of the ACI 318-02’s strut-tie model approach (Barnes, 2002), was selected in order to verify the effectiveness of the grid strut-tie model. The whole region of the shearwall belongs to a disturbed region because of openings, concentrated loads, and support conditions. The five types of load combinations are as follows:

– Load Combination 1: Two 2000kN vertical loads acting on the top of the shearwall

– Load Combination 2: Two 760kN horizontal loads acting on the right side of the shearwall

– Load Combination 3: Load combinations 1 and 2

– Load Combination 4: Two 760kN horizontal loads acting on the left side of the shearwall

– Load Combination 5: Load combinations 1 and 4

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Reference

1. Yun Y. M. and Kim B. H. (2008) A 2-Dimensional Grid Strut-Tie Model Approach for Structural Concrete, Journal of Structural Engineering, ASCE, Vol. 134, No. 7, pp. 1199-1214.
2. Barnes, R.W. (2002) High Wall with Two Openings – Examples for the Design of Structural Concrete with Strut-and-Tie Models, Reineck, K.H. Ed., American Concrete Institute, Michigan, pp. 195-211.

 

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