预应力压型钢板与混凝土组合板抗弯性能全过程分析  

Full-Range Analysis on Flexural Performance of Profiled Sheet and Prestressed Concrete Composite SlAbs

作　　者：刘晓[1,2] 王连广[1] 王兵[2] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004 [2]沈阳大学建筑工程学院,辽宁沈阳110044

出　　处：《沈阳建筑大学学报（自然科学版）》2009年第5期938-941,共4页Journal of Shenyang Jianzhu University：Natural Science

基　　金：教育部博士点基金项目(20050145012);辽宁省重点实验室开放基金项目(JG200706);辽宁省教育厅科技攻关项目(2009A527)

摘　　要：目的研究在弯矩作用下预应力压型钢板与混凝土组合板的力学性能和全过程曲线.方法采用分级加变形的方法模拟组合构件的荷载-变形关系,分析混凝土强度、钢板厚度和初始预拉力对组合板力学性能的影响.结果确定预应力压型钢板与混凝土组合楼板的非线性分析程序,荷载-变形曲线可以分为弹性、弹塑性和塑性3个阶段,混凝土强度、钢板厚度对组合板关系曲线在荷载作用初期影响较小,初始预拉力对板荷载-变形关系曲线在荷载作用初、末期的影响较大.结论预应力的施加能有效提高构件的抗裂度和承载力,减小结构变形.The flexural performance of profiled sheet and prestressed concrete composite slabs（PSPCS） is analyzed. The graded deformation is applied to model composite slab load-deformation. The mechanical performance influence of concrete strength, steel thickness and initial prestressing are analyzed. As a result, the PSPCS nonlinear analysis program has been made up, and load-deformation has three stages elastic, elastic-plastic and plastic. Concrete strength and steel thickness have less influence on initial stage of relational curves, and initial prestressing has stronger influence on initial and the last stage of relational curves. It can be reached that by putting prestressing on the composite slab, the crack resistance and carrying capacity can be improved, and deformation can be reduced.

关 键 词：预应力 压型钢板 组合板 非线性分析 抗弯性能 

分 类 号：TU398.9[建筑科学—结构工程]