884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

（1 國(guó)網(wǎng)河北省電力有限公司經(jīng)濟(jì)技術(shù)研究院， 石家莊 050021； 2 天津大學(xué)建筑工程學(xué)院， 天津 300072）

［摘要］對(duì)3個(gè)十字形隔板貫通節(jié)點(diǎn)進(jìn)行柱頂恒定軸力和梁端橫向往復(fù)荷載作用下的試驗(yàn)。3個(gè)足尺試件設(shè)計(jì)變化的參數(shù)為隔板厚度和核心區(qū)柱壁厚度?；谠囼?yàn)結(jié)果，采用有限元軟件ABAQUS對(duì)試件進(jìn)行非線性分析和計(jì)算，得到梁端荷載-位移滯回曲線并與試驗(yàn)進(jìn)行對(duì)比，且利用有限元軟件對(duì)試驗(yàn)過(guò)程應(yīng)力分布進(jìn)行分析。試驗(yàn)結(jié)果及有限元分析表明：對(duì)于隔板貫通節(jié)點(diǎn)，其隔板的厚度以及核心區(qū)柱壁的厚度對(duì)核心區(qū)的承載力有重要影響；梁端塑性鉸破壞模式與核心區(qū)凹曲剪切破壞模式下，試件的滯回曲線均飽滿而穩(wěn)定，且耗能能力均能滿足要求；核心區(qū)在受剪破壞模式下，其承載力和性能基本上只與核心區(qū)柱腹板和隔板厚度有關(guān)，而與核心區(qū)柱翼緣厚度無(wú)關(guān)。

［關(guān)鍵詞］隔板貫通節(jié)點(diǎn)；核心區(qū)；抗剪性能；抗震性能

中圖分類(lèi)號(hào)：TU398-9文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)09-0136-05

Study on the seismic performance of the panel zone of the diaphragm-through joints between square steel tube and H-shaped steel beam

SUN Yiliang1, WU Hailiang1, ZHANG Wuchen1, RONG Bin2, YANG Ziheng2, SULIMAN Khan2

(1 State Grid Hebei Economic Research Institute, Shijiazhuang 050021, China；2 School of Civil Engineering, Tianjin University, Tianjin 300072, China)

Abstract:Three cross-shaped diaphragm-through joint were tested under the constant axial force at the top of the column and the transverse cyclic load at the beam end. The changed parameters of three full-scale specimens are the thickness of the diaphragm and the thickness of the column wall in the panel zone. Based on test results, the finite element software ABAQUS was used to perform nonlinear analysis and calculation on the specimen, and the load-displacement hysteresis curve was obtained and compared with the test. The finite element software was used to analyze the stress distribution in the test process. The test results and the finite element analysis show that: for the diaphragm-through joint, the thickness of the diaphragm and the thickness of the column wall in the panel zone have an important influence on the bearing capacity of the panel zone; Under the plastic hinge failure mode of the beam end and the concave bending shear failure mode of the panel zone, the hysteresis curve of the specimen is full and stable, and the energy dissipation capacity can meet the requirements；Under the shear failure mode, the bearing capacity and performance of the panel zone are only related to the thickness of the column web in the panel zone and the diaphragm, but not to the flange thickness of the column in the panel zone.

Keywords:diaphragm-through joint; panel zone; shear performance; seismic performance

作者簡(jiǎn)介：孫軼良，碩士，高級(jí)工程師，Email:syl2529@126.com；通信作者：榮彬，博士，副教授，Email：tjerobin@126.com。