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鋼框架梁柱擴翼型節(jié)點的抗震性能分析
陳曉旭 何華拓 陳兆榮
摘 要

陳曉旭1,何華拓2,陳兆榮3

1 廣東白云學院, 廣州 510000 2 蘇交科集團股份有限公司, 南京 210000;3 深圳市力鵬工程結構技術有限公司, 深圳 518034

[摘要]針對傳統(tǒng)鋼結構梁柱鋼節(jié)點截面突變處較易出現應力集中現象展開,選取2個擴翼型節(jié)點和1個傳統(tǒng)節(jié)點,通過ABAQUS有限元軟件,采用低周循環(huán)位移荷載模擬地震作用,分析了普通節(jié)點和擴翼型節(jié)點的抗震性能。分析結果表明:擴翼型節(jié)點的抗震性能比傳統(tǒng)節(jié)點較為優(yōu)越,隨著擴翼尺寸的增大其抗震性能呈更好的趨勢;建議在強震地區(qū)的鋼框架結構中優(yōu)先選用擴翼型節(jié)點。

[關鍵詞]擴翼型; 抗震性能; 剛性連接; 低周循環(huán)位移荷載

中圖分類號: TU352,TU391    文獻標識碼: A    文章編號: 1002-848X(2015)S2-0441-05

 

Analysis of the seismic performance on widened beam-column connection in the steel frame

Chen Xiaoxu1, He Huatuo2, Chen Zhaorong3

1 Guangdong Baiyun University, Guangzhou 510000, China; 2 JSTI, Nanjing 210000, China;

3 Shenzhen Lipeng Structural Engineering Technology Co., Ltd., Shenzhen 518034, China

Abstract: The severe stress concentrating is obvious in sharp section change of traditional steel frame beam column connections. Two widened beam flange connections and one traditional connections were selected. Anti-seismic property of widened beam flange connections and traditional joints was analyzed by finite element software ABAQUS, at the same time, seismic excitation can be modeled by low cycle displacement loading. The analytical results show that the anti-seismic properties of widened beam flange connections are superior to traditional joints. Meanwhile, anti-seismic properties improve as its size grows. As a result, it is suggested that widened beam flange connections should be adopted preferentially in the region of strong earthquakes.

Keywords: widened beam flange connection; anti-seismic property; rigid coupling; low cycle displacement loading

作者簡介:陳曉旭,碩士研究生,Email:719879187@qq.com。

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