建筑结构学报2017，Vol.38Issue(5)：77-84,8.DOI:10.14006/j.jzjgxb.2017.05.010
带外加强环不等高梁-钢管混凝土柱组合节点抗震性能试验研究
Experimental investigation on seismic behavior on steel unequal-depth-beams to CFT column connection with external diaphragm
摘要
Abstract
This paper presents seismic behavior of steel unequal-depth-beams to concrete-filled-tubular-column connection with external-diaphragm (UCCE).Four specimens were conducted under cyclic and monotonic loading tests.The experimental parameters were beam depths and loading type (cyclic loading and monotonic loading).In order to discuss the shear resistant capacity of the panel zone,specimens were designed following the principle of strong-member and weak-connection.The failure modes of UCCE include the shear failure of the entire panel zone and the shear failure of partial panel zone.It is found that,the loading types have little influence on the shear strength and shear deformation of entire panels.UCCE forms different failure modes under different loading directions.In addition,the shear capacities of specimens under the negative loading are a little higher than those under the positive loading.The difference in beam depth has major impacts on both failure modes and shear capacities of connection panel zone.All the specimens behave in a ductile manner throughout the test and no signs of fracturing.Beam-to-CFT column connections have good deformability and stable energy dissipation capacity.However,with the increase of differences in beam depths,the energy dissipation capacity decreases.关键词
钢管混凝土节点/变截面/外加强环/循环加载试验/单调加载试验/抗震性能Key words
beam-to-CFT column connection/unequal-depth-beam/external diaphragm/cyclic loading test/monotonic loading test/seismic behavior分类
建筑与水利引用本文复制引用
牟犇,陈功梅,张春巍,徐培蓁..带外加强环不等高梁-钢管混凝土柱组合节点抗震性能试验研究[J].建筑结构学报,2017,38(5):77-84,8.基金项目
山东省中青年科学家科研奖励基金项目(ZR2016EEB38),山东省博士后创新项目(201601017),青岛市应用研究项目(2016194). （ZR2016EEB38）
