黑龙江科技大学学报2024，Vol.34Issue(4)：564-571,8.DOI:10.3969/j.issn.2095-7262.2024.04.011
既有RC变截面柱加固前后的力学性能
Mechanical properties of existing RC variable cross-section column before and after reinforcement
李静薇 1张浩宇 1滕振超1
作者信息
- 1. 东北石油大学 土木建筑工程学院,黑龙江 大庆 163318
- 折叠
摘要
Abstract
This paper aims to solve the problems of external force damage and low concrete strength at the additional layer reconstruction of the variable cross-section column.The study involves using the enlarging cross-section method,the CFRP wrapping method and the bonded steel reinforcement method to strengthen the frame members and analyze their mechanical properties.The results show that by using the increased cross-section method,the CFRP wrapping method and the bonded steel reinforcement method.the axial bearing capacities of the original members increase by 113%,128%and 112%respectively;the lateral pressure bearing capacities increase by 105%,192%and 154%,respectively.But the bond-ed steel reinforcement method has great advantages under periodic load.The enlarging cross-section method is suitable for improving the axial bearing capacity of the variable cross-section column,and the CFRP reinforcement is suitable for improving the lateral pressure bearing capacity and axial bearing ca-pacity,but neither of them is suitable for improving the seismic capacity of the variable cross-section col-umn.Compared with the first two methods,the bonded steel reinforcement method is universal for both.关键词
变截面柱/CFRP/增大截面/粘钢加固Key words
column with variable cross section/CFRP/increase cross-section/bonding steel plate分类
建筑与水利引用本文复制引用
李静薇,张浩宇,滕振超..既有RC变截面柱加固前后的力学性能[J].黑龙江科技大学学报,2024,34(4):564-571,8.
