Reliability Analysis of FRP-Concrete-Steel Tubular Composite Column Under Axial Compression

被引：0
|
作者：
Gao H.-Y. [1 ]
Wang L.-G. [1 ]
Chen B.-L. [1 ]
机构：
[1] School of Resources & Civil Engineering, Northeastern University, Shenyang
来源：
Dongbei Daxue Xuebao/Journal of Northeastern University | 2024年 / 45卷 / 03期
关键词：
double skin tubular column（DSTC）; fiber reinforced polymer; JC method; reliability analysis; resistance partial factor; strength model;
D O I：
10.12068/j.issn.1005-3026.2024.03.016
中图分类号：
学科分类号：
摘要：
Several existing FRP-confined concrete strength models were evaluated by using 85 FRP‑concrete‑steel DSTC（double‐skin tubular column）axial compression test data as statistical samples. Finally，Teng’s model was selected for reliability analysis，and the optimal probability distributions of strength model error and resistance were determined. The reliability of DSTC was calculated using the JC method. The results show that the reliability index increases with the increase of steel tube strength，hollow ratio and steel ratio，while it is not significantly influenced by concrete strength. The increase in FRP confining stress leads to the decrease in reliability index. Based on the target reliability index of 3. 7，a new expression of resistance partial factor is proposed for DSTC. © 2024 Northeast University. All rights reserved.
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页码：430 / 438
页数：8
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