Influence of constraint shear wall on failure mode and energy dissipation performance of SRC frame-bent structures

Pseudo-dynamic and pseudo-static tests of a SRC frame-bent model structure, and pseudo-static test of typical SRC abnormal joints were conducted to analyze the influence of constraint shear wall on the structure's failure mode and energy dissipation performance. The results showed that the shear wall is the first aseismic line of the structure to make the failure model be helpful to resist earthquakes; the weak part of the structure moves down from coal hopper floor and operation floor to two bottom stories with increase in earthquake intensity; the load-displacement hysteretic curve is plump, and the energy dissipation performance is better; the shear wall has a significant restraint effect on the crack developing of SRC abnormal joints, and setting constraint shear walls along both vertical and horizontal direction can improve the failure mode of this kind of joints; setting constraint shear wall can enhance the energy dissipation performance, force-bearing capacity and ductility performance of SRC abnormal joints obviously. The research results provided basic research data for promoting the application of SRC frame-bent structures. ©, 2015, Chinese Vibration Engineering Society. All right reserved.