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为研究双钢板-混凝土组合剪力墙结构的耐火性能,对3榀采用不同剪力件连接(螺栓连接、栓钉连接、栓钉和剪力杆组合连接)的双钢板-混凝土组合剪力墙进行了轴压力和单面ISO-834标准升温作用下的耐火性能试验,得到这种新型组合剪力墙结构在火灾下的温度场分布、轴向变形及破坏模式,并就不同剪力连接件对组合剪力墙耐火性能的影响进行了分析和比较.结果表明,剪力连接件能够保证钢板与混凝土共同工作;采用不同剪力连接件连接的组合剪力墙在火灾下的破坏模式是相同的,但不同剪力件对组合剪力墙耐火性能的影响不同,采用螺栓连接的组合剪力墙的耐火极限最短,采用栓钉和剪力杆组合连接的剪力墙耐火极限最长.
In order to study the fire resistance of the double-steel-concrete composite shear wall structure, a double-steel-concrete composite shear wall with different shear connections (bolted connections, bolted connections, studs and shear bars) The axial pressure and the single-sided ISO-834 standard temperature-increasing fire resistance test were carried out. The temperature field distribution, axial deformation and failure mode of the new composite shear wall structure under fire were obtained. The results show that the shear connectors can ensure that the steel plates and concrete work together. The failure modes of the composite shear walls connected by different shear connectors are the same under fire However, the influence of different shear members on the fire resistance of the composite shear wall is different. The combined shear wall with bolting has the shortest fire resistance and the shear wall with the combination of pegs and shear rods has the longest fire resistance.