土木工程与管理学报2018，Vol.35Issue(1)：73-77,83,6.
重复荷载作用下箍筋约束混凝土T形柱性能
Performance of T-shaped Concrete Columns Confined by Stirrups Under Axial Repeated Loading
摘要
Abstract
Structures may bear randomly or regularly repeated loading during usage. To study the performance of T-shaped concrete columns confined by stirrups under axial repeated loading, 5 specimens with different reinforcement characteristic value were tested under axial repeated loading while one was tested under axial loading for comparison.Results show that the failure characteristics of specimens are similar when tested under axial repeatedloading or under axial loading, and with the increasing of reinforcement characteristic value, the failure mode of specimens is changed from oblique failure to longitudinal failure, the peak load and peak displacement of specimens increase, the descending segment of skeleton curves turn to be more flat,the stiffness degeneration of specimens is delayed effectively, and the ductility of specimens becomes better. The calculated results of ductility coefficient are in good agreement with the test results, and the formula established can be used to calculate the ductility of T-shaped concrete columns confined by stirrups under axial repeated loading.关键词
重复荷载/箍筋/约束/T形柱/配箍特征值Key words
repeated loading/stirrup/confinement/T-shaped column/reinforcement characteristic value分类
建筑与水利引用本文复制引用
王晓伟,李政儒..重复荷载作用下箍筋约束混凝土T形柱性能[J].土木工程与管理学报,2018,35(1):73-77,83,6.基金项目
河北省自然科学基金(E2014202178) （E2014202178）
