Damaged Tubular T-joints Retrofitted with Carbon Fiber Reinforced Polymer Subjected to Monotonic and Cyclic Loadings

被引：0
作者：
Peng Deng
Jianxun Guo
Yan Liu
Boyi Yang
机构：
[1] Shandong University of Science and Technology,Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation
[2] Ocean University of China,College of Engineering
[3] Shandong University of Science and Technology,College of Civil Engineering and Architecture
来源：
International Journal of Steel Structures | 2021年 / 21卷
关键词：
Damage; CFRP; Retrofit; Tubular T-joints; Monotonic loading; Cyclic loading;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Owing to seismic, wave, or wind actions, tubular joints used in onshore and offshore civil infrastructures may require retrofitting to withstand both static and cyclic loadings. In the present study, bearing capacities, failure modes, and ductilities of damaged tubular T-joints retrofitted with carbon fiber reinforced polymer (CFRP) were investigated. Two-step loading was applied: first, a pre-determined load was applied to induce chord deformation; this was followed by unloading and CFRP retrofitting. Subsequently, the specimens were reloaded to failure. Results showed that the retrofitted specimens exhibited a maximum capacity similar to and a plastic deformation slightly larger than that of the bare specimen when these subjected to static loading; the retrofitted specimens, which were not severely damaged, exhibited a higher compressive ductility index than that of the bare specimen when these subjected to cyclic loading.
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页码：299 / 314
页数：15
相关论文
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