摘要
为研究型钢混凝土暗梁的受弯和受剪性能,分别进行了6个试件的受弯试验和6个试件的受剪试验。试验着重研究了不同型钢截面尺寸、暗梁截面高度和型钢截面类型(蜂窝式型钢和实腹式型钢)对试件破坏形态、受弯承载力、受剪承载力的影响规律。试验结果表明:受弯试验中,所有试件均表现出良好的受弯性能,延性较好,蜂窝式型钢对试件的变形能力和受弯承载能力影响较小。受剪试验中,所有试件的剪切延性良好,但蜂窝式型钢弱化了型钢混凝土暗梁的抗剪能力。在试验结果的基础上,给出了型钢混凝土暗梁的受弯承载力计算公式,并提出了型钢混凝土暗梁的受剪承载力计算公式,计算结果精度较高,可用于该形式下暗梁的受弯和受剪承载力计算。
In order to study the bending and shear performance of steel reinforced concrete(SRC)shallow beams,each six specimens were designed for bending tests and shear tests,respectively.The failure modes and bearing capacities of the specimens were studied,based on the section sizes of steel shape and height of shallow beams as well as the crosssectional steel shape(honeycombed and solid sections).The test results indicated that all specimens showed a good bending strength capacity and ductility in the test.Also,the specimens with honeycomb sectional shape showed little influence on both deformation ability and bending capacity of the specimens.Besides,in the shear test,all specimens exhibited good shear ductility,but the specimens with honeycomb-sectional steel shape reduced the shear capacity.Finally,based on the test results,the calculation formula for predicting bending capacity was given,and the equation for evaluating shear capacity was also proposed,which had good accuracy and can be used to calculate the bending capacity and shear capacity of SRC shallow beams.
作者
杨勇
胡曼鑫
张文松
陈阳
郭亚康
YANG Yong;HU Manxin;ZHANG Wensong;CHEN Yang;GUO Yakang(Sehool of Civil Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China)
出处
《建筑钢结构进展》
CSCD
北大核心
2020年第5期35-42,共8页
Progress in Steel Building Structures
基金
国家自然科学基金(51578443,51778525)。
关键词
型钢混凝土
暗梁
受弯性能
受剪性能
受弯承载力
受剪承载力
steel reinforced concrete(SRC)
shallow beams
bending performance
shear performance
bending capacity
shear capacity
