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对3个冷弯超薄壁C型钢组合墙体与组合楼盖连接的墙梁节点足尺试件进行拟静力试验,讨论不同墙架柱截面、不同轴压比对墙梁节点承载力、耗能能力的影响,得到了各节点的破坏特征、承载力特征值、延性和耗能系数。结果表明:墙架柱截面对冷弯超薄壁C型钢墙梁节点的抗震性能影响较大,C160mm×40mm×10mm×1mm截面试件的承载力是C89mm×44.5mm×12mm×1mm截面试件的1.5倍,延性系数约1.1倍。轴压比对冷弯超薄壁C型钢墙梁节点的抗震性能影响明显,0.4的轴压比下C160mm×40mm×10mm×1mm截面试件的承载力是0.2的轴压比时的2/3,延性系数约1/2。
Quasi-static tests were carried out on the full-scale specimens of three beams with cold-formed thin-walled C-section steel walls and composite floor coverings connected to each other. , The impact of energy consumption, the damage characteristics of each node, the bearing capacity characteristics, ductility and energy dissipation coefficient were obtained. The results show that the column-column cross-section has a great influence on the seismic performance of the cold-formed ultra-thin-walled C-beam. The bearing capacity of C16mm × 40mm × 10mm × 1mm section is C89mm × 44.5mm × 12mm × 1mm 1.5 times, ductile coefficient about 1.1 times. The axial compression ratio has a significant effect on the seismic performance of cold-formed thin-walled C-beam. The bearing capacity of C160mm × 40mm × 10mm × 1mm section bearing 0.4 axial compression ratio is about 2/3 , Ductile coefficient about 1/2.