装配式钢梁-EPP组合楼盖平面内变形与刚性性能研究  

Study on In-plane Deformation and Stiffness of Prefabricated Steel Beam-EPP Composite Floor

作　　者：苏群山 周超锋 王庆伟 SU Qunshan;ZHOU Chaofeng;WANG Qingwei(Henan D.R.Construction Group,Zhengzhou 451464,Henan,China;Postdoctoral Research Station of Henan D.R.Construction Group,Zhengzhou 451464,Henan,China;Henan University of Technology,Zhengzhou 450001,Henan,China)

机构地区：[1]河南省第二建设集团有限公司,河南郑州450000 [2]河南省第二建设集团有限公司博士后科研工作站,河南郑州450000 [3]河南工业大学,河南郑州450001

出　　处：《建筑施工》2025年第2期188-191,共4页Building Construction

基　　金：新乡市重大科技专项(22ZD017);河南省高等学校重点科研项目(24A560006)。

摘　　要：提出了一种装配式钢梁-预应力空心板(EPP板)降板连接组合楼盖,在单调水平荷载下对其顺板向、横板向的平面内变形进行研究,并引入指标λASCE对其刚性性能进行评估。结果表明:水平加载初期,近载轴、远载轴变形较小且变化趋势基本保持一致,说明楼盖具有良好的整体协同变形能力;继续加载至位移角1/50,远载轴变形发生突变,最大相对变形分别达到0.010、0.178 mm,楼板局部破坏;评估指标λASCE远小于0.5,说明结构设计中该组合楼盖可认定为刚性楼盖。研究成果可为装配式组合楼盖的工程设计应用提供参考依据。A prefabricated steel beam-prestressed hollow slab(EPP slab)composite floor with reduced slab connection is proposed.The in-plane deformation along and perpendicular to the slab direction under monotonic horizontal loading is analyzed,and its stiffness is evaluated using the indexλASCE.Results indicate that during the initial stage of horizontal loading,deformation near and far from the loading axis remains small and consistent,demonstrating good overall deformation coordination.As loading progresses to a displacement angle of 1/50,sudden deformation occurs at the far loading axis,with maximum relative deformations of 0.010 mm and 0.178 mm,leading to local damage of the floor slab.The evaluation indexλASCE is significantly less than 0.5,confirming that the composite floor can be regarded as a rigid floor in structural design.These findings provide valuable reference for the engineering design and application of prefabricated composite floors.

关 键 词：装配式钢结构 预应力空心板 组合楼盖 变形性能 刚性性能 

分 类 号：TU765[建筑科学—建筑技术科学]