双钢板混凝土偏压构件受力性能试验研究  

Experimental Study on Mechanical Performance of Eccentrically Loaded Steel-Concrete-Steel Sandwich Composite Members

作　　者：雷升祥 李占先[2] 刘勇 Lei Shengxiang;Li Zhanxian;Liu Yong(China Railway Construction Corporation Co.Ltd.,Beijing 100855,China;China Railway 14th Bureau Group Co.Ltd.,Jinan 250000,China;School of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China)

机构地区：[1]中国铁建股份有限公司,北京100855 [2]中铁十四局集团有限公司,山东济南250000 [3]石家庄铁道大学土木工程学院,河北石家庄050043

出　　处：《石家庄铁道大学学报（自然科学版）》2021年第4期28-33,共6页Journal of Shijiazhuang Tiedao University(Natural Science Edition)

基　　金：国家重点研发计划(2018YFC0808704);国家自然科学基金-青年科学基金(52008271);中铁第四勘察设计院集团有限公司科技研究开发计划(2020K163)。

摘　　要：为研究管幕预筑结构受力性能,明确钢-混凝土工作机理,以栓钉布置、偏心距为参数,设计完成了双钢板-混凝土组合构件偏压试验,研究了不同连接件设置偏压构件的受力机理和破坏模式,分析了构件截面应变分布、承载能力、滑移。结果表明,在不发生屈曲的前提下,栓钉的布置对试件的受力性能几乎无影响,两侧不布置栓钉的试件,尽管两侧受拉钢板与混凝土界面上均出现了微小的界面滑移,但对承载能力影响较小。In order to study the mechanical performance of members in pipe-roof precast plate structures,and clarify the working mechanism of steel and concrete,the eccentric compression test of three steel-concrete-steel sandwich members was completed with connector arrangement and eccentricity as parameters.The stress mechanism and failure mode of members with and without connectors were studied,and the strain distribution,bearing capacity and interface slip of the members were analyzed.The results reveal that,when the steel plates in compression are not buckled,the arrangement of connectors has little effect on the mechanical properties of the members.Although there are small inter-facial slippages at the interface between steel plate and concrete on both sides of the specimens without connectors,the bearing capacities of these specimens are basically identical.

关 键 词：双钢板混凝土结构 管幕预筑结构 偏压构件 连接件 承载力 

分 类 号：TU375.4[建筑科学—结构工程]