A nonlinear FE formulation for elastic buckling and post-buckling analysis of pre-stressed stayed columns with bonded/un-bonded cable stays

被引：4
作者：
Zhang, Fengping [1 ]
Kim, Moon-Young [1 ]
机构：
[1] Sungkyunkwan Univ, Sch Civil & Architectural Engn, 2066 Seobu Ro, Suwon 16419, South Korea
来源：
THIN-WALLED STRUCTURES | 2024年 / 199卷
基金：
新加坡国家研究基金会;
关键词：
Pre -stressed stayed column; Elastic buckling; Post; -buckling; FEM; Un-bonded/bonded stays; MODE INTERACTION; BEHAVIOR; STABILITY; SINGLE; IMPERFECTIONS;
D O I：
10.1016/j.tws.2024.111760
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This study intends to investigate elastic buckling and post-buckling behaviors of pre-stressed (PS) stayed columns with single and triple cross-arms using a nonlinear FEM. To achieve this, a two-node shear-rigid/shear-flexible beam element considering second-order effects and multi-node stay cable elements under bonded/un-bonded conditions with consistent consideration of their unstrained lengths are formulated using an energy method. After validity and accuracy of the present formulation under the bonded condition is demonstrated through comparison of analysis results by Abaqus, elastic buckling and post-buckling characteristics of two PS stayed column models with single and triple cross arms is rigorously examined, considering the stays under the bonded or un-bonded conditions.
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页数：16
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