Time-Dependent Buckling Analysis of Concrete-Filled Steel Tubular Arch with Interval Viscoelastic Effects

被引：9
作者：
Wu, Di [1 ]
Gao, Wei [1 ]
Tangaramvong, Sawekchai [2 ]
机构：
[1] Univ New South Wales, Ctr Infrastruct Engn & Safety, Sch Civil & Environm Engn, Sydney, NSW 2052, Australia
[2] Chulalongkom Univ, Appl Mech & Struct Res Unit, Dept Civil Engn, Bangkok 10330, Thailand
来源：
JOURNAL OF STRUCTURAL ENGINEERING | 2017年 / 143卷 / 07期
基金：
澳大利亚研究理事会;
关键词：
Concrete-filled steel tubular (CFST); Composite structure; Uncertain viscoelastic effects; Structural stability; Uncertainty analysis; Structural safety and reliability; UNCERTAINTY ANALYSIS; TRUSS STRUCTURES; CREEP; BEHAVIOR; RELIABILITY; DEFLECTIONS; STABILITY; STRENGTH;
D O I：
10.1061/(ASCE)ST.1943-541X.0001782
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this paper, a finite-element-based computational method is proposed for time-dependent structural stability analysis of a concrete-filled steel tubular (CFST) arch with uncertain parameters. Specifically, the targeted uncertainty includes the mercurial effects of the creep and shrinkage of the concrete core, which inevitably affect the structural performance of the CFST arch. The structural stability of the composite arch is systematically investigated under the influence of uncertain creep and shrinkage in a time-dependent fashion. The proposed computational scheme efficiently establishes the quantitative long-term stability envelope for CFST arches against uncertain viscoelastic effects. In order to demonstrate the effectiveness and efficiency of the proposed time-dependent structural stability analysis for CFST arches, practically motivated numerical examples are thoroughly investigated throughout this work. (C) 2017 American Society of Civil Engineers.
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页数：13
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