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《Sichuan Building Science》 2014-01
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Research of the form of reinforcing bar and mechanical properties about integral cast-in-situ composite lintel

XING Guoqi;XIAO Hongtian;YI Tingcheng;YANG Zhengang;School of Civil Engineering and Architecture,Shandong University of Science and Technology;School of Architecture and Engineering,Weifang University;Shandong Lai Gang Construction Co. ,Ltd.;  
The form of reinforcing bar of integral cast-in-situ composite lintel under non seismic action was studied and the area of reinforcing bar in integral cast-in-situ composite lintel was calculated according to the model established in this paper. The feasibility of the form of reinforcing bar was verificated by the experiment and the conclusion was get that: 1) The anchorage length( 36 d) that reinforcing bar of tensile zone in lintel anchored in frame beams or coupling beams met the requirements and the form of reinforcing bar in lintel was feasible in theory. 2) When reaching to serviceability limit state,the reinforcing bar of compression zone in frame beams or coupling beams and the reinforcing bar of tensile zone in lintel can reach to the yield strength and the reinforcing bar of tensile zone in frame beams or coupling beams can not reach to the yield strength. When the area of reinforcing bar in tensile zone of frame beams or coupling beams was reduced of about 20%,the reinforcing bar can reach to the yield strength. 3) In order to ensure the reliability of safety,the area of reinforcing bar in tensile zone of lintel should be increased by about 40%.
【Fund】: 潍坊市科技发展计划项目(201104049)
【CateGory Index】: TU375
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