ANALYTICAL MODEL FOR PREDICTING SHEAR STRENGTH OF SQUAT WALLS

A softened strut-and-tie model for determining the shear strength of squat walls is proposed in this paper. The proposed model originates from the strut-and-tie concept and satisfies equilibrium, compatibility, and constitutive laws of cracked reinforced concrete. The shear capacities of 62 squat walls were calculated and compared with the available experimental results, and reasonable agreement was obtained. Based on the collected experimental data in this paper, the proposed physical model was used to study the effects of boundary elements, cyclic loading, and vertical loads on the wall shear strength. The softened strut-and-tie model can be further developed to improve the current shear wall design procedures by incorporating the actual shear resisting mechanisms in predicting shear strength of walls.

[1]  W G Corley,et al.  WEB CRUSHING OF REINFORCED CONCRETE STRUCTURAL WALLS , 1984 .

[2]  Henry G. Russell,et al.  Strength of Low-Rise Structural Walls , 1980 .

[3]  Shyh-Jiann Hwang,et al.  Analytical Model for Predicting Shear Strengths of Interior Reinforced Concrete Beam-Column Joints for Seismic Resistance , 2000 .

[4]  B. Vijaya Rangan,et al.  High-Strength Concrete (HSC) Structural Walls , 1998 .

[5]  Thomas T. C. Hsu,et al.  Shear Behavior of Reinforced Concrete Framed Wall Panels With Vertical Loads , 1987 .

[6]  Michael P. Collins,et al.  COMPRESSION RESPONSE OF CRACKED REINFORCED CONCRETE , 1993 .

[7]  Thomas T. C. Hsu,et al.  Behavior and Analysis of 100 MPa Concrete Membrane Elements , 1998 .

[8]  J M Hanson,et al.  SHEAR STRENGTH OF LOW-RISE WALLS WITH BOUNDARY ELEMENTS , 1976 .

[9]  J. R. Benjamin,et al.  The Behavior of One-Story Reinforced Concrete Shear Walls , 1957 .

[10]  Michael D. Kotsovos,et al.  Behavior of Reinforced Concrete Structural Walls: Strength, Deformation Characteristics, and Failure Mechanism , 1990 .

[11]  Stephen J. Foster,et al.  The Design of Nonflexural Members withNormal and High-Strength Concretes , 1996 .

[12]  Yi-Lung Mo,et al.  Tool for dynamic analysis of reinforced concrete framed shearwalls , 1993 .

[13]  H. Rothert,et al.  Effect of Softening Models on Behavior of ReinforcedConcrete Framed Shearwalls , 1997 .

[14]  Mark Fintel,et al.  SHEARWALLS - AN ANSWER FOR SEISMIC RESISTANCE? , 1991 .

[15]  T. Paulay,et al.  Seismic Design of Reinforced Concrete and Masonry Buildings , 1992 .

[16]  H. Kawamura,et al.  Reinforced Concrete Shear Walls Without Openings; Test and Analysis , 1974 .