A NOVEL SECTIONAL CONSTITUTIVE MODEL FOR BEAM-COLUMN ELEMENT

被引：0

作者：

Chen, Y. S. ^{[1
,2
]}

Wu, B. ^{[1
,2
]}

Pan, T. L. ^{[1
,2
]}

机构：

[1] Harbin Inst Technol, Key Lab Struct Dynam Behav & Control, Minist Educ, Harbin 150090, Peoples R China

[2] Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Peoples R China

来源：

ENGINEERING REVIEW | 2016年 / 36卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Constitutive model; Yield surface; Axial force and bending moment coupling; Mixed hardening; Elastoplastic analysis;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The constitutive models on sectional level can meet both computational accuracy and efficiency, and hence have great potential for nonlinear analyses of frame structures. However, currently available sectional constitutive models usually assume a constant axial force and therefore cannot account for axial force and bending moment coupling flexibly. In this paper, a sectional constitutive model is proposed in the framework of classical plastic theory. The proposed model features kinematic/isotropic hardening. It can well account for axial flexure interaction, and can be used to describe distributed plasticity along beam-column members in comparison with a plastic hinge model. The numerical simulations of a cantilever column and a steel frame structure showed that the proposed sectional constitutive model is more accurate than a plastic hinge model and more efficient than a fiber model.

引用

页码：41 / 52

页数：12

共 26 条

[1] Resistance of steel I-sections under axial force and biaxial bending [J].