| Title |
Shear Strength and Deformability of R/C Framed Shear Walls with Opening |
| Authors |
Yun Hyun-Do ; Choi Chang-Sik |
| Keywords |
Shear Walls with Openings ; Shear Strength ; Deformability ; Opening Periphery Ratio ; Framed Shear Walls |
| Abstract |
Shear strength and deformability of framed reinforced concrete shear walls with openings were investigated based on available experimental data. Up to 61 shear walls failed in shear, tested either under monotonically increasing lateral loading or reversed lateral loading, were evaluated in terms of load and drift capacities. Results of 61 tests of framed shear walls with openings were reviewed to evaluate the current design provisions defined in ACI 318-02 and AIJ Code pertaining to shear design of shear walls without openings. The results indicate that ACI 318-02(considering AIJ Reducing Ratio) were found to overestimate the shear strength of shear walls with openings while AIJ tended to underestimate that. A reasonable lower bound to the shear strength of high- strength concrete shear walls is found to be??0.34√fcuMPa. While deformability of shear walls with openings reduces with increasing opening periphery ratio, it increases with increasing the product of area ratio and strength of horizontal reinforcement. The magnitude of axial stress and shear stress had a insignificant effect on the deformability of shear walls with openings. |