- 摘 要
-
（1 內(nèi)蒙古科技大學(xué)建筑與土木工程學(xué)院, 包頭 014010； 2 包頭市地震局， 包頭 014010）
［摘要］針對貫通隔板相關(guān)參數(shù)對方鋼管柱焊接工字形鋼梁鋼框架節(jié)點抗震性能的影響，設(shè)計了4個隔板貫通式節(jié)點試件，對其進(jìn)行了低周反復(fù)循環(huán)荷載作用下滯回性能的試驗研究。試驗表明，該類型節(jié)點具有較好的延性和承載力，強(qiáng)度退化和剛度退化穩(wěn)定。隔板的厚度對節(jié)點承載力有明顯影響，厚度越大，承載力越高；在一定范圍內(nèi)，隔板的平面尺寸越大，越能將應(yīng)力有效分散到更大區(qū)域，對承載力有一定貢獻(xiàn)。
［關(guān)鍵詞］隔板貫通式節(jié)點; 方鋼管; 滯回性能; 試驗研究
中圖分類號：TU392 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2014)06-0065-05
Experimental study of hysteretic behavior of diaphragm-through joint of steel framewith square steel tube column and H-shaped steel beam
Wan Xin1, Liu Zhiming2, Jiang Xizhou1
(1 Architecture and Civil Engineering School, Inner Mongolia University of Science and Technology, Baotou 014010, China; 2 Baotou Seismological Bureau, Baotou 014010, China)
Abstract: In order to study the impacts of the continuous diaphragms on the seismic behavior of steel frame joint with square steel tube column and H-shaped steel beam, four diaphragmthrough joint specimens were tested under low cyclic loads to investigate the hysteretic behavior. The experiment results show that the ductility and the bearing capacity are sufficient and the strength degradation is stable as well as the stiffness degradation.Diaphragm thickness has a major influence on the bearing capacity of the joint and the bearing capacity is in proportion to the thickness of the diaphragm. In a certain range, the diaphragms with bigger planar dimension can effectively distribute the stress to a wider area, which contributes to the bearing capacity.
Keywords: diaphragm-through joint; square steel tube; hysteretic behavior; experimental study
作者簡介：萬馨,碩士，副教授，Email：xin.wan@126.com。
參考文獻(xiàn)
［1］石永久,李兆凡,陳宏,等.高層鋼框架新型梁柱節(jié)點抗震性能試驗研究［J］.建筑結(jié)構(gòu)學(xué)報,2002,23(3):2-7.
［2］陳以一,李剛,莊磊,等.H型鋼梁與鋼管柱隔板貫通式連接節(jié)點抗震性能試驗［J］.建筑鋼結(jié)構(gòu)進(jìn)展, 2006,8(1):23-30.
［3］楊強(qiáng)躍,鄭悅.鋼框架梁柱節(jié)點連接方式的介紹與分析［J］.建筑結(jié)構(gòu)，2004,34(6): 44-48.
［4］GB/T 228—2002 金屬材料 室溫拉伸試驗方法［S］.北京：中國標(biāo)準(zhǔn)出版社，2002.
［5］JGJ 101—96 建筑抗震試驗方法規(guī)程［S］.北京：中國建筑工業(yè)出版社,1997.
