Geometrically and materially nonlinear creep behaviour of reinforced concrete columns

被引：19

作者：

Hamed, Ehab ^{[1
]}

Lai, Cynthia ^{[2
]}

机构：

[1] Univ New S Wales, Sch Civil & Environm Engn, Ctr Infrastruct Engn & Safety, Sydney, NSW 2052, Australia

[2] Univ New S Wales, Sch Civil & Environm Engn, Sydney, NSW 2052, Australia

来源：

STRUCTURES | 2016年 / 5卷

关键词：

Buckling; Columns; Concrete; Creep; Nonlinear; Viscoelasticity; NON-LINEAR CREEP; UNIAXIAL COMPRESSION; HIGH-STRENGTH; BASIC CREEP; MODEL; SHRINKAGE; BEAMS; FORMULATION; PREDICTION; SHELLS;

D O I：

10.1016/j.istruc.2015.07.001

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A mathematical model is developed, which considers creep at the nonlinear range of stresses, shrinkage, aging, cracking, and the geometric nonlinearity in reinforced concrete columns. Creep is modelled through the modified principle of superposition that is based on the use of a stress-dependent compliance function. The governing equations are solved through numerical integration in time and the multiple-shooting method for the solution in space. An iterative procedure is used for convergence at each time step. A numerical study is conducted, which reveals the importance of considering the combined geometric and material nonlinear effects in the creep analysis of concrete columns. (C) 2015 The Institution of Structural Engineers. Published by Elsevier Ltd. All rights reserved.

引用

页码：1 / 12

页数：12

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