同济大学学报（自然科学版）2017，Vol.45Issue(9)：1258-1264,7.DOI:10.11908/j.issn.0253-374x.2017.09.002
预制混凝土梁端预埋槽钢节点静力性能试验
Experimental Study on Static Performance of Embedded Channel Joints of Precast Concrete Beams
摘要
Abstract
Embedded channel joint of precast concrete beam is a new type of joint system which can be applied to prefabricated energy dissipation and seismic reduction systems.Static bearing tests of 12 specimens were carried out,which considered the influence of the length of the embedded channel steel,the stirrup spacing,the cavity in the midspan of the beam,and the eccentricity of the channel steel.Two kinds of failure modes were obtained:the leverout of the channel steel and the crushing of the beam-end concrete.The test results revealed the following:the bearing capacity of the joint increased with the increase of the length of the embedded channel steel;stirrup densification could significantly improve the bearing and deformation capacity;the cavity in the midspan of the beam had little influence on the bearing and deformation capacity of the joint;the eccentricity of the channel steel led to the additional torsion,which lowered the capacity of the joint.Finite element models (FEM) were established,and they were verified by comparing the test results and the FEM results,which has built a solid foundation for further research.关键词
装配式结构/预制混凝土梁/梁端节点/预埋槽钢Key words
prefabricated structure/precast concrete beam/beam-end-joint/embedded channel steel分类
建筑与水利引用本文复制引用
郭小农,高舒羽,裴进玉,罗晓群..预制混凝土梁端预埋槽钢节点静力性能试验[J].同济大学学报（自然科学版）,2017,45(9):1258-1264,7.基金项目
“十三五”国家重点研发计划(2016YFC0701603) （2016YFC0701603）
