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★ ★ ★ ★ ★ ★ ★ ★ ★ ★
感谢参与，应助指数 +1
shenhx: 金币+10, ★★★★★最佳答案, 非常感谢！ 2015-02-26 15:54:08
心静_依然: LS-EPI+1, 感谢应助 2015-02-26 23:11:58
sunshan4379: LS-EPI-1, 版主评分有误，严格来讲这个库不算做SCI收录，故不能给予EPI，望理解！ 2015-02-27 19:26:33
Behavior of high-strength steel welded rectangular section beam-columns with slender webs
作者:Shen, HX (Shen, Hong-Xia)
THIN-WALLED STRUCTURES
卷: 88 页: 16-27
出版年: MAR 2015
摘要
This paper develops a double nonlinear finite element model that can take account of both geometric and material imperfections. On verified the numerical model the behavior and ultimate carrying capacity of eccentrically loaded welded thin-webbed rectangular section columns made from high strength steel with a nominal yield stress of 460 MPa are analyzed, and further the influences of the slenderness ratio, web depth-to-thickness ratio, flange width-to-thickness ratio, and relative eccentricity ratio on the ultimate carrying capacity are investigated. On the basis of these, the simple calculation formulas, which use the gross cross-section properties, for predicting the in-plane maximum strength of high strength steel beam-columns with large depth-to-thickness ratios are proposed. It shows that the developed finite element model can simulate the local-overall interaction buckling behavior of the eccentrically loaded welded box-section compression members. A brittle failure characteristic is found with a relatively steeper drop just after the peak in the load-displacement curve. A nonlinear and complex stress distribution, in the longitudinal direction, when reaching the ultimate capacity, seriously deviates from an elastic stress distribution, on the basis of which, the effective width is determined. The non-dimensional ultimate bearing capacity is approximately linear with the slenderness, depth-to-thickness ratio and width-to-thickness ratio, respectively. The interaction curves between the axial force and flexural moment for the high-strength steel thin-webbed rectangular section beam-columns are nearly linear. After introducing a steel yield strength modification factor, the formula based on the edge fiber yielding criterion can precisely predict the local-overall interactive buckling strength of high strength steel beam-columns. (C) 2014 Elsevier Ltd. All rights reserved.
关键词
作者关键词:High strength steel; Welded rectangular section; Eccentric compression members; Local-overall interaction buckling; Ultimate carrying capacity; Finite element method
KeyWords Plus:WALLED BOX COLUMNS; COMPRESSION MEMBERS; PLATE ELEMENTS; FINITE-ELEMENT; DESIGN
作者信息
通讯作者地址:Shen, Hong-Xia (通讯作者),Xian Univ Architecture & Technol, Sch Civil Engn, Xian 710055, Peoples R China
地址:
[ 1 ] Xian Univ Architecture & Technol, Sch Civil Engn, Xian 710055, Peoples R China
电子邮件地址:shenhongxia888@163.com
出版商
ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND, https://www.elsevier.com
类别 / 分类
研究方向:Engineering
CC 专辑/合集:Engineering, Computing & Technology (ECT)
学科:CIVIL ENGINEERING
文献信息
文献类型: Article
语种:English
入藏号: CCC:000348954800002
ISSN: 0263-8231
期刊信息
目录： Current Contents Connect®
Impact Factor (影响因子): Journal Citation Reports®
其他信息
ISI 文献传递号: CA5NJ
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