钢-混凝土组合楼盖空间作用的试验研究  

Stress reductions in steel-concrete composite slabs in steel frames

作　　者：聂建国[1] 陈戈[1] 孙传伟[1] 周建军[2] 连艳红[2] 

机构地区：[1]清华大学土木工程系,北京100084 [2]国电华北电力设计院工程有限公司,北京100011

出　　处：《清华大学学报（自然科学版）》2005年第6期749-752,共4页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(5978021)

摘　　要：为了研究钢混凝土组合楼盖的空间作用,采用伪静力试验方法对按1/4比例缩小的单跨、4层、4柱距的钢框架、带水平支撑钢框架、组合框架以及带水平支撑组合框架模型进行了弹性比较试验,并对组合框架结构模型进行了破坏试验。试验结果表明,钢混凝土组合楼板能够满足水平荷载作用下协同框架结构整体受力的要求。在弹塑性阶段,混凝土楼板和钢梁之间仍然能够通过栓钉共同工作,有效地减小水平荷载作用下框架结构的侧向位移。试验验证了组合楼盖传递水平荷载的有效性,为进一步的理论研究提供了参考。The stresses and displacements of steel-concrete composite floor slabs in steel frames was studied experimentally using pseudo static tests on 1/4 scale models of one-span four-bay and four-floor frame structures. The lateral load tests compared the stresses and displacements with steel frame, steel frame with horizontal braces, steel-concrete composite frame and steel-concrete composite frame with horizontal braces. The composite frame was also tested to failure. The results show the synergistic effect of the composite floor slabs in steel frame. The combination of the concrete slabs and steel beams reduces the lateral displacement of the composite frame during lateral loading in the elasto-plastic region. The results show that composite floor slabs more effectively transfer horizontal forces than the steel frames alone.

关 键 词：钢-混凝土组合空间框架 组合楼板 空间作用 

分 类 号：TU375[建筑科学—结构工程]