| 王刚,王清湘,李中军,闫长旺.剪力墙结构中钢筋混凝土楼板膜效应试验研究[J].,2012,(1):66-73 |
| 剪力墙结构中钢筋混凝土楼板膜效应试验研究 |
| Experimental investigation of membrane action in reinforced concrete slab in shear-wall structures |
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| DOI：10.7511/dllgxb201201012 |
| 中文关键词: 剪力墙结构 压力膜效应 钢筋混凝土板 承载力 |
| 英文关键词: shear-wall structures compressive membrane action reinforced concrete slab bearing capacity |
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| 中文摘要: |
| 以剪力墙结构中的连续楼板为研究对象,设计了12个剪力墙约束钢筋混凝土单向板试件,试验研究了侧向约束条件下楼板的承载力．试验结果表明,受压力膜效应影响,当侧向约束刚度与试件自身刚度之比为0.022∶1时,试件的极限承载力较上限方法计算的结果平均提高了38.3%．在试验结果的基础上,对比研究了支座与中间板带的刚度比、支座轴压力、跨高比、配筋率以及侧向约束力等参数对试件受力性能的影响,得到了压力膜效应和拉力膜效应临界点与跨中挠度的对应关系． |
| 英文摘要: |
| Based on the continuous reinforced concrete slab in shear-wall structure, tests of twelve one-way slab specimens restrained by shear-walls were carried out to investigate the slabs′ bearing performance under lateral restraint condition. Testing results show that, influenced by compressive membrane action, average ultimate load capacity of specimens is 138.3% of the calculation results using upper-bound method when the ratio between the lateral restraint stiffness and specimens′ own stiffness is 0.022∶1. The influence of stiffness ratio between support and central slab, vertical load on ending wall, span-height ratio of central slab, steel ratio and lateral restraint force on specimens′ bearing performance is also investigated. The relationship between central deflection and the critical point of compressive membrane action and tensile membrane action is given by the test. |
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