不同连接形式PC挂板-剪力墙抗震性能研究

RESEARCH ON THE SEISMIC BEHAVIOR OF CONNECTIONS BETWEEN PC PANELS AND SHEAR WALL STRUCTURES

为研究不同连接形式PC挂板-剪力墙体系的抗震性能,进行了4个单层双肢剪力墙足尺试件的拟静力试验。通过对比试件的受力过程和破坏形态,研究PC挂板与剪力墙之间连接构造的受力机理和抗震性能,进而验证PC挂板与剪力墙之间连接构造的合理性。为进一步优化该体系的抗震性能,补充关于新型隔离材料的直剪试验,并采用ABAQUS对带有新型隔离材料的PC挂板-剪力墙进行了对比分析。研究结果表明:带有隔离材料且仅采用限位装置的PC挂板-剪力墙的抗震性能优于其他两种连接形式;新型隔离材料削弱了PC挂板对主体结构抗震性能的影响及减少了PC挂板外叶板裂缝的出现,其结果更为理想。

Quasi-static tests on four single-story coupled shear walls were conducted to study the behavior of different connections between precast concrete （PC） panels and shear wall structures. Based on a comparative study of loading process and failure modes of the specimens, the mechanical performance and seismic behavior of connections between shear wall structures and exterior cladding panels were studied. Then, the connections between cladding panels and shear walls were analyzed. In addition, shear tests and analyses based on ABAQUS were conducted to optimize the behavior of the separating material. The study shows that the behavior of cladding panels with separating material and limiting devices was better than that of other types. Optimized separating material can reduce the number of cracks and has positive influence on the seismic performance of the structure.