钢板混凝土组合墙体结构平面外抗剪承载力试验分析
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（1 上海交通大学土木工程系， 上海 200240; 2 上海核工程研究设计院， 上海 200240）
［摘要］双层钢板-混凝土组合墙体结构的主要受力体系为外侧钢板和内部填充的混凝土，连接上下钢板的对穿型钢提供平面外抗剪承载力。针对钢板-混凝土组合墙体结构的平面外抗剪结构性能，设计了5个剪跨比均为1.5的梁式试件，进行两点简支的单点、双点单调加载试验，研究抗剪槽钢间距、抗剪钢材分布形式及轴拉力3个因素对构件抗剪承载力的影响。试验中量测并记录了构件的挠度、拉区钢板的应变及混凝土表面裂缝随荷载的发展情况，从而得到构件的极限抗剪承载力。试验结果表明，抗剪槽钢配钢率和分布形式直接影响了构件的抗剪承载力和破坏形态，而轴拉力没有明显削弱构件的平面外抗剪承载力。最后将试验实测抗剪承载力与3本规程、规范的计算值作了对比，给出了规程、规范对钢板-混凝土组合墙体结构抗剪承载力的低估程度。［关键词］钢板-混凝土组合墙体结构; 抗剪承载力; 试验中图分类号：TU398+.2 文献标识码：A 文章编号：1002-848X(2013)22-0015-07Experimental study on out-of-plane shear resistance of steel-concrete composite wall structuresLeng Yubing1, Song Xiaobing1, Ge Honghui2, Chu Meng2（1 Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 2 Shanghai Nuclear Engineering Research and Design Institute, Shanghai 200240, China）Abstract: In steel-concrete composite walls structures, outside steel plate and core concrete sandwiched between two steel plates are main bearing force system, channel steel connectors are used as mechanical out-of-plane shear connectors. In view of out-of-plane shear structure performance of the steel-concrete composite wall structures, five simply supported composite beams with shear span ratio of 1.5 were carried to single point and double points monotonic loading test. Influence of three main factors, which include the distance and distribution of shear connectors and axial tension, on shear bearing capacity was studied. During the test, vertical deflection, steel plates strain and concrete cracks were measured, and then shear resistance was obtained. Experimental results show that the distance and distribution of shear connectors directly influence the shear performance failure mode of the structures，while axial tension does not reduce the shear capacity obviously. Shear resistance of experimental results and calculation results of codes are compared and degree of undervaluation of shear resistance of steel-concrete composite wall structures is showed.Keywords: steel-concrete composite wall structure; shear resistance; experiment作者简介：冷予冰，硕士研究生，Email：leng_yb@163.com。参考文献［1］孙建超，徐培福，肖从真，等. 钢板混凝土组合剪力墙受剪性能试验研究［J］. 建筑结构，2008，38（6）：1-5.［2］聂建国，余志武. 钢混凝土组合梁在我国的研究及其应用［J］. 土木工程学报，1999，32（2）：3-7.［3］聂建国，赵洁. 钢板混凝土组合简支梁的试验研究［J］. 土木工程学报，2008，41（12）：28-34.［4］ACI 349 Code requirements for nuclear safety-related concrete structures and commentary［S］. American Concrete Institute，2001.［5］JEAC 4618—2009 钢板混凝土结构抗震设计技术规程［S］. 日本: 日本电气协会核能标准委员会，2009.［6］江见鲸. 混凝土结构工程学［M］. 北京：中国建筑工业出版社，1998.［7］孙建超，徐培福，肖从真，等. 不同配筋形式混凝土剪力墙受剪性能试验研究［J］.建筑结构,2008，38（6）：6-10.［8］过镇海，时旭东. 钢筋混凝土原理和分析［M］. 北京：清华大学出版社，2003.［9］GB 50010—2010 混凝土结构设计规范［S］. 北京: 中国建筑工业出版社，2011.
