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張艷霞1， 李云鵬1， 張萬慧2， 劉力力1
(1 北京建筑工程學(xué)院土木與交通工程學(xué)院，北京 100044；2 吉林省東北亞鐵路集團股份有限公司琿春分公司，琿春 133300）[摘要] 應(yīng)用ABAQUS有限元分析軟件，考慮了幾何非線性、材料非線性、接觸非線性、包辛格效應(yīng)、焊縫缺陷、高強螺栓的預(yù)拉力等多種因素的影響，對蜂窩鋼框架梁柱節(jié)點和腹板開孔鋼框架梁柱節(jié)點的承載能力、破壞模式、延性性能和耗能能力進行了分析。研究表明：普通蜂窩鋼梁柱節(jié)點的延性較差，故其不適宜直接用于抗震結(jié)構(gòu)中；腹板開孔鋼梁框架通過調(diào)整鋼梁孔洞大小和孔洞間距可以有效地改善梁柱節(jié)點的延性性能和耗能能力并應(yīng)用于抗震結(jié)構(gòu)中。上述初步分析結(jié)論需要進一步通過試驗驗證。
[關(guān)鍵詞] 蜂窩鋼梁；腹板開孔鋼梁；梁柱節(jié)點；抗震性能；有限元分析
中圖分類號：TU391.5 文獻標(biāo)識碼：A 文章編號：1002-848X(2012) Sl-0713-03Finite element analysis of seismic behavior on cellular beam and fabricated perforated beams to column connection
Zhang Yanxia1, Li Yunpeng1, Zhang Wanhui2, Liu Lili1
(1 Beijing Uruversity of Civil Engineering and Architecture, Beijing 100044, China; 2 Hunchun Branch, Jilin Province Northeast Asia Railway Group Co., Ltd., Hunchun 133300, China)Abstract: Finite element analyses on capacity, failure pattems, ductility and energy dissipation of cellular beam and fabricated perforated beams to column connection had been executed by using ABAQUS. The geometric nonlinearity, material nonlinearity,contact nonlinearity, bausclunger effect, weld defects and pre-tension of high strength bolts were all taken into account. Analyses results show that cellular beam to column connection can not provide enough ductility and energy dissipation, so it is not suitable for directly used in moment frames. Ductility and energy dissipation of fabricated perforated beams to column connection can be improved and used in moment frames by adjusting the diameter and space of the hole. The preliminary conclusion need further experimental verification.
Keywords: cellular beams; fabricated perforated beams; beam-column connections; seismic behavior; firute element analysis
