山东建筑大学学报2025，Vol.40Issue(6)：1-8,24,9.DOI:10.12077/sdjz.2025.06.001
高温后灌浆套筒连接抗拉性能试验研究
Experimental study on tensile properties of grout sleeve connection after high temperature
摘要
Abstract
Research on the working performance of grouted sleeve connections subjected to the high temperature effects is of great significance for the assessment of the disaster resistance of building structures.Thirty fully grouted sleeve connection specimens were designed and fabricated,and static loading tests were conducted on the specimens after high temperature action.The results show that when the experienced high temperature exceeds 400℃,the high temperature deteriorates the adhesive property between grout and reinforcement,resulting in the connection tensile test damage from the reinforcement pull-off damage to the reinforcement pull-out damage;the higher the experienced high-temperature action temperature,the lower the measured tensile strength of the connection specimens;the length of the constant temperature action time on the grouting sleeve connection performance has a significant impact,when the experienced high-temperature action temperature is the same,the actual test specimen tensile bearing of the connection specimens.When the experienced high temperature is the same,the tensile bearing of the actual test specimens is reduced with the increase of the constant temperature time.关键词
高温/灌浆套筒连接/静力拉伸试验/抗拉强度Key words
high temperature/grout sleeve connections/static tensile test/tensile bearing capacity分类
建筑与水利引用本文复制引用
FU Chuanguo,XU Tengfei,WANG Yunxing,Wang Yuzhuo,MENG Weihao..高温后灌浆套筒连接抗拉性能试验研究[J].山东建筑大学学报,2025,40(6):1-8,24,9.基金项目
国家自然科学基金项目(51478254) （51478254）
上海市工程结构安全重点实验室开放课题(2021-KF03) （2021-KF03）
