高强钢筋页岩陶粒混凝土构件局部受压性能研究及可靠度分析  

Study on local compression and reliability analysis of high-strength reinforced shale ceramsite concrete components

作　　者：朱号令 邵永健[1] 张威 ZHU Haoling;SHAO Yongjian;ZHANG Wei(School of Civil Engineering,Suzhou University of Science and Technology,Suzhou 215011,China)

机构地区：[1]苏州科技大学土木工程学院,江苏苏州215011

出　　处：《混凝土与水泥制品》2025年第3期64-68,共5页China Concrete and Cement Products

摘　　要：设计制作了25个高强钢筋页岩陶粒混凝土构件,研究了其局部受压破坏形态,分析了混凝土强度等级、钢筋骨架等参数对局部受压构件可靠度指标的影响。结果表明:局部受压构件的破坏模式为劈裂破坏;随着混凝土强度等级的提高,构件的可靠度指标降低;A_(b)/A_(l)对构件可靠度指标的影响很小;随着A_(cor)/A_(l)的增大,构件的可靠度指标增大;配置钢筋骨架和间接钢筋能有效提高局部受压构件的可靠度指标,仅配置钢筋骨架对局部受压构件的可靠度指标无明显提升作用。A total of 25 high-strength reinforced shale ceramsite concrete components were designed to investigate their local compression failure modes.The influence of concrete strength grade,reinforcement cages and other parameters on the reliability index of local compression components was analyzed.The results indicate that the failure mode of local compression components is splitting failure.With the increase of concrete strength grade,the reliability index of components decreases.The impact of A_(b)/A_(l) on the reliability index of components is minimal.As the value of A_(cor)/A_(l) increases,the reliability index of the component also increases.Configuring reinforcement cages and indirect steel bar can effectively improve the reliability index of local compression components,however,configuring only reinforcement cages does not enhance the reliability index.

关 键 词：高强钢筋 页岩陶粒混凝土 局部受压 破坏形态 可靠度 

分 类 号：TU375[建筑科学—结构工程]