Computational modeling of cold-formed steel: characterizing geometric imperfections and residual stresses

被引：677

作者：

Schafer, BW ^{[1
]}

Pekoz, T ^{[1
]}

机构：

[1] Cornell Univ, Sch Civil & Environm Engn, Ithaca, NY 14853 USA

来源：

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH | 1998年 / 47卷 / 03期

关键词：

cold-formed steel; imperfections; residual stresses; computational modeling;

D O I：

10.1016/S0143-974X(98)00007-8

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Thin-walled, cold-formed steel members exhibit a complicated post-buckling regime that is difficult to predict. Today, advanced computational modeling supplements experimental investigation. Accuracy of computational models relies significantly on the characterization of selected inputs. No consensus exists on distributions or magnitudes to be used for modeling geometric imperfections and for modeling residual stresses of cold-formed steel members. In order to provide additional information existing data is collected and analyzed and new experiments performed. Simple rules of thumb and probabilistic concepts are advanced for characterization of both quantities. The importance of the modeling assumptions are shown in the examples. The ideas are summarized in a preliminary set of guidelines for computational modeling of imperfections and residual stresses. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：193 / 210

页数：18

共 20 条

[1]

AVERY P, 1996, P 13 INT SPEC C COLD

[2]

BERNARD ES, 1993, THESIS U SYDNEY SYDN

[3]

Dat D.T., 1980, STRENGTH COLD FORMED

[4]

DAVIES JM, 1995, P 3 INT C STEEL AL S

[5]

DEBATISTA EM, 1992, EXPT TECHNIQUES, V16, P25

[6]

INGVARSSON L, 1977, B DEP BUILDING STAT, V121

[7]

KARREN KW, 1965, THESIS CONELL U ITHA

[8] A THEORETICAL INVESTIGATION OF THE COLUMN BEHAVIOR OF COLD-FORMED SQUARE HOLLOW SECTIONS [J].

KEY, PW ;

HANCOCK, GJ .

THIN-WALLED STRUCTURES, 1993, 16 (1-4) :31-64

[9]

Kwon YB, 1992, THESIS U SYDNEY SYDN

[10]

Lau SCW, 1988, THESIS U SYDNEY

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