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原文传递 Constitutive Model for Reinforcing Steel under Cyclic Loading

题名：	Constitutive Model for Reinforcing Steel under Cyclic Loading
其他题名：	Bae,S.,Mieses,A.M.,and Bayrak,O.(2005)."Inelastic buckling of reinforcing bars."J.Struct.Eng.,10.1061/(ASCE)0733-9445(2005)131:2(314),314–321.
正文语种：	英文
作者：	Se Hyung Kim
关键词：	Reinforcing steel;Constitutive model;Buckling;Low-cycle fatigue;Rupture;Analysis and computation
摘要：	The hysteretic stress-strain response of steel reinforcement can significantly affect the performance of reinforced concrete (RC) structures. Additionally, the possibility of inelastic buckling and fracture of longitudinal bars can have a negative impact on the ductility of RC flexural members. This paper presents a uniaxial material model to describe the inelastic behavior of reinforcing steel under cyclic loading. As a starting point, an existing hysteretic law is employed, which is capable of capturing the material behavior in the absence of buckling and rupture. One issue with this existing law is the need for an iterative stress calculation. A series of enhancements to the hysteretic law are established, including the formulation and implementation of a noniterative stress update procedure and the capability to efficiently account for local inelastic buckling and rupture due to low-cycle fatigue. The proposed material model is validated using the results of experimental tests.
出版年：	2016
论文唯一标识：	P-26Y2016V142N12019
英文栏目名称：	TECHNICAL PAPERS
doi：	10.1061/(ASCE)ST.1943-541X.0001593
期刊名称：	Journal of Structural Engineering
拼音刊名(出版物代码)：	P-26
卷：	142
期：	12
页码：	203-216