Nonlinear plastic hinge analysis of three-dimensional steel frames in fire

被引：32

作者：

Ma, KY ^{[1
]}

Liew, JYR ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Civil Engn, Singapore 117576, Singapore

来源：

JOURNAL OF STRUCTURAL ENGINEERING | 2004年 / 130卷 / 07期

关键词：

yield strength; fire resistance; plastic hinges; steel frames; plasticity;

D O I：

10.1061/(ASCE)0733-9445(2004)130:7(981)

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A beam-column model for simulating the inelastic behavior of three-dimensional (3D) steel frames is presented. Yielding of the steel section is modeled by two nested stress-resultant surfaces and takes into consideration the softening effect of steel material at elevated temperature. Derivation of the inelastic stiffness of a 3D beam-column element is presented. Degradation of the strength of the material at elevated temperatures is formulated according to the "effective yield strength" concept. Application of the method is demonstrated by analyzing and studying the behavior of steel members and a 3D multistory frame exposed to fire.

引用

页码：981 / 990

页数：10

共 26 条

[11] Improved nonlinear plastic hinge analysis of space frame structures [J].

Liew, JYR ;

Chen, H ;

Shanmugam, NE ;

Chen, WF .

ENGINEERING STRUCTURES, 2000, 22 (10) :1324-1338

[12] Advanced plastic hinge analysis for the design of tubular space frames [J].

Liew, JYR ;

Tang, LK .

ENGINEERING STRUCTURES, 2000, 22 (07) :769-783

[13] Advanced analysis for the assessment of steel frames in fire [J].

Liew, JYR ;

Tang, LK ;

Holmaas, T ;

Choo, YS .

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 1998, 47 (1-2) :19-45

[14] Advanced analysis for performance-based design of steel structures exposed to fires [J].

Liew, JYR ;

Tang, LK ;

Choo, YS .

JOURNAL OF STRUCTURAL ENGINEERING, 2002, 128 (12) :1584-1593

[15]

LIEW JYR, 2002, P 2 INT WORKSH STRUC, P303

[16]

LIEW JYR, 2002, P INT S STRUCT FIR S

[17]

LIEW JYR, 2002, P INT S STRUCT FIR 2, P1

[18]

MA KY, 2003, P 2003 ANN TECHN SES, P403

[19]

MOSS PJ, 2002, P 2 INT WORKSH

[20] YIELD SURFACE APPLICATIONS IN NON-LINEAR STEEL FRAME ANALYSIS [J].

ORBISON, JG ;

MCGUIRE, W ;

ABEL, JF .

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 1982, 33 (1-3) :557-573

← 1 2 3 →