同济大学学报（自然科学版）2012，Vol.40Issue(4)：522-528,7.DOI:10.3969/j.issn.0253-374x.2012.04.004
木质组合梁抗弯性能试验研究
Bending Tests Investigation on Composite Timber Beam
摘要
Abstract
42 timber beams including 12 rectangular beams CRB),24 composite T-beams(CTB). and 6 composite I-beams (CIB) were tested to experimentally examine the bending performance of the composite timber beam. Four failure modes were identified, namely, a flexural failure of the web in the pure bending region, a splitting failure along the wood grain of the web, a shear failure of the web in bending shear region, and a local rotation at the end of beam. The relative slip between the web and the flange in the composite timber beam was small enough to ensure the composite action and load sharing between the flange and the web. The tests demonstrated thai, as expected, the bending stiffness and capacity of the CIB was the largest, followed by the CTB. and ending with the RB. The results of these tests clearly demonstrate that composite action should be taken into account to economically design timber floors.关键词
组合梁/组合作用/破坏模式/木楼盖Key words
composite beam/ composite interaction/ failure mode/ timber floor分类
建筑与水利引用本文复制引用
熊海贝,康加华,吕西林..木质组合梁抗弯性能试验研究[J].同济大学学报（自然科学版）,2012,40(4):522-528,7.基金项目
国家国际科技合作项目(2008DFA71990) （2008DFA71990）
