圆钢管活性粉末混凝土黏结性能有限元分析  

Finite Element Analysis of Adhesion Performance of Reactive Powder Concrete With Circular Steel Tubes

作　　者：刘晓[1,2] 周鸣 侯东序 郁舒敏 LIU Xiao;ZHOU Ming;HOU Dongxu;YU Shumin(School of Architecture and Engineering,Shenyang University,Shenyang 110044,China;Shenyang Key Laboratory of Intelligent Disaster Prevention and Mitigation of Civil Buildings,Shenyang University,Shenyang 110044,China)

机构地区：[1]沈阳大学建筑工程学院,辽宁沈阳110044 [2]沈阳大学沈阳市民用建筑智慧防灾减灾重点实验室,辽宁沈阳110044

出　　处：《沈阳大学学报（自然科学版）》2023年第1期67-73,共7页Journal of Shenyang University：Natural Science

基　　金：国家自然科学基金资助项目(52078306);辽宁省教育厅基本科研项目(LJKQZ2021165);沈阳市科技计划项目(21-108-9-21)。

摘　　要：为了研究圆钢管与活性粉末混凝土之间的黏结性能,建立了有限元模型,并使用有限元软件ABAQUS分析了试件长细比、径厚比和活性粉末混凝土强度等参数对钢管活性粉末混凝土界面承载能力的影响,剖析了试件运行机制和典型试件的载荷-滑移曲线。结果显示:初始黏结破坏载荷会随着径厚比的增加而减少,随着活性粉末混凝土强度与长细比的增加而增加;在试件经历极限黏结破坏后,混凝土的各项性能损失严重,曲线呈逐渐下降状态。In order to study the bonding performance between round steel pipe and active powder concrete, a finite element model was established, and the effects of parameters such as slenderness ratio, diameter to thickness ratio and strength of active powder concrete on the interface bearing capacity of steel pipe active powder concrete were analyzed by using the finite element software ABAQUS, and the operation mechanism of components and the load-slip curve of typical components were analyzed. The results show that the initial bond damage load decreases with increasing diameter-to-thickness ratio and increases with increasing active powder concrete strength and length-to-thickness ratio. After the element suffers ultimate bond damage, the concrete significantly loses all its properties and the curve gradually decreases.

关 键 词：钢管活性粉末混凝土 径厚比 长细比 RPC强度 有限元分析 

分 类 号：TU398.9[建筑科学—结构工程]