带桁架钢筋的混凝土双向自支承叠合板受力机理研究*
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（安徽建筑大学土木工程学院， 合肥 230601）
［摘要］采用试验验证和数值模拟技术，对带桁架钢筋的足尺拼接双向自支承叠合板的破坏机理以及桁架钢筋与叠合板的共同工作机理进行研究；对带桁架钢筋、不带桁架钢筋两种情况下的双向自支承叠合板进行了全过程受力对比研究。结果表明，桁架钢筋与叠合板共同工作，降低了叠合板拼缝处的受力，使整个叠合板的内力分布更加均匀，明显改善了叠合板的受力性能。［关键词］桁架钢筋; 双向自支承叠合板; 共同工作中图分类号：TU375.2 文献标识码：A 文章编号：1002-848X(2015)15-0093-04
Study on loading mechanism of bidirectional self-supporting concrete composite plates with truss rebarChen Dong, Shen Xiaopu(School of Civil Engineering, Anhui Jianzhu University, Hefei 230601, China)Abstract:Based on experiment and numerical simulation technology, the loading mechanism of bidirectional self-supporting full-scale spliced concrete composite plates with truss rebar was studied as well as the collaboration mechanism of composite plate and truss rebar. The comparison of the whole mechanism process was studied for bidirectional self-supporting composite plates with and without truss rebar. Results show that the collaboration of composite plate and truss rebar reduces the stress of the composite plate seam joint, makes the internal force distribution of the composite plate more uniform, and significantly improves the mechanical performance of the plate.Keywords:truss rebar; bidirectional self-supporting composite plate; collaboration
*国家重点基础研究发展计划“973计划”（2012CB719703），安徽省自然科学基金项目（1408085QE96，090414272x）。作者简介：陈东，博士，副教授，Email：dongqian0823@sina.com。
