增大截面法加固RC柱受压性能研究进展  

Research on the Compressive Performance of RC Columns Reinforced by Enlarged Section Method

作　　者：林上顺 林龙镁 夏樟华[2] 林永捷 Lin Shangshun;Lin Longmei;Xia Zhanghua;Lin Yongjie(School of Civil Engineering,Fujian University of Technology,Fuzhou 350118,China;School of Civil Engineering,Fuzhou University,Fuzhou 350118,China)

机构地区：[1]福建工程学院土木工程学院,福建福州350118 [2]福州大学土木工程学院,福建福州350108

出　　处：《市政技术》2022年第2期40-48,共9页Journal of Municipal Technology

基　　金：福建省自然科学基金项目(2019J01779,2019H6020)。

摘　　要：综述了增大截面法加固RC柱的研究现状。首先,介绍了增大截面法加固RC柱的构造以及不同构造的适用范围;其次,对增大截面法加固RC柱受压承载力研究的发展与现状进行调研,重点分析了二次受力对于加固柱受压承载力的影响;再次,对增大截面法加固RC柱的各类理论研究进行归纳总结,并根据收集到的文献的试验数据进行计算,对不同的理论公式进行了对比分析;最后,介绍了新型混凝土在增大截面法加固RC柱中的应用研究,对现有研究的不足进行讨论,并指出目前的研究尚处于起步阶段,采用新型混凝土的增大截面法是今后的研究方向和热点。The research status of RC columns reinforced by enlarged section method is summarized. Firstly, the structure of RC column reinforced by enlarged section method and the application scope of different structures are introduced;Secondly, its development and current situation of research on the compression bearing capacity are investigated. The influence of secondary stress on the compression bearing capacity of reinforced columns is analyzed;Thirdly, various theoretical studies on it are summarized. According to the test data collected, different theoretical formulas are compared and analyzed;Finally, the research and application of new concrete in it is introduced. The shortcomings of current research is discussed to point out the research of the new section increasing concrete method is still in the initial stage. The method with new concrete is the direction ang hot point in future.

关 键 词：增大截面法 加固 RC柱 受压承载力 新型混凝土 

分 类 号：U443.22[建筑科学—桥梁与隧道工程]