钢箱-混凝土组合截面梁的力学性能初步试验研究  

Preliminary test and research on the mechanic behaviors of steel box-concrete composite section beams

作　　者：钟新谷[1] 郑玉国[1] 舒小娟[1] 阳国锋[1] 袁帅华[1] 邹中权[1] 

机构地区：[1]湘潭工学院桥梁工程研究所,湖南湘潭411201

出　　处：《湘潭矿业学院学报》2002年第4期46-49,共4页Journal of Xiangtan Mining Institute

基　　金：湖南省自然科学基金资助(编号:01JJY2049);湖南省教委青年基金资助项目(编号:01B027)

摘　　要：在提出一种新组合截面即钢箱 混凝土组合截面梁的基础上进行该类梁的P Δ曲线分析和试验.试验分析表明:该类梁具有良好的抵抗变形能力,钢箱对混凝土的套箍效应有作用,钢箱的顶底板的剪力滞后效应明显,钢箱 混凝土组合截面梁在加载的过程中基本符合平截面假定、中性轴的移动规律.试验结果与理论分析基本一致.图7,参5.After a type of new composite beam,steel boxconcrete composite beam is put forward,the pΔ curves of beams of this type are analyzed, and some tests are also carried out. Analysis based on tests indicate that the ability of steel boxconcrete composite beams to resist deformation is good, and the socalled confined effect,which steel box acts on concrete is very evident.The tests indicate that in the loading process, the steel boxconcrete composite beam is basically in accordance with the assumption of plane crosssection and the moving rule of the neutral axis.And the testing results are in accordance with theoretical ones. 7figs.,5refs.

关 键 词：力学性能 钢筋-混凝土组合截面梁 承载力 套箍效应 荷载-变形关系 

分 类 号：TU323.3[建筑科学—结构工程]