镶嵌式加固混凝土构件加固区域力学行为的有限元分析  

Finite Element Analysis of Mechanical Behavior of Reinforced Concrete Members with Inlaid Reinforcement

作　　者：李地红 夏娴 高群 代函函 于海洋 LI Dihong;XIA Xian;GAO Qun;DAI Hanhan;YU Haiyang(College of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044)

机构地区：[1]北京建筑大学土木与交通工程学院

出　　处：《材料导报》2019年第A01期249-253,共5页Materials Reports

摘　　要：本工作采用ABAQUS有限元软件对哑铃形镶嵌件加固混凝土构件进行了有限元数值模拟计算,分析了镶嵌件几何形态对加固效果的影响,选用8种镶嵌件形状,对比分析了哑铃形镶嵌加固件两端盾头连接长度和半径对混凝土构件加固后,中间裂缝的挤压情况、边界效应及其对极限承载力的影响。结果表明:将ABAQUS软件用于本研究是可行的。哑铃形镶嵌式加固件两端盾头的半径和连接长度的增大能够显著提高加固后混凝土构件的极限承载能力,为进一步探究和扩展镶嵌式加固混凝土构件的研究及工程实践提供参考。In this work, ABAQUS finite element software was used to calculate the finite element numerical simulation of the concrete members strengt- hened with dumbbell-shaped inserts. The influence of the geometry of the inserts on the reinforcement effect was analyzed. The shape of the eight inserts was selected and the dumbbell-shaped inlay reinforcement was compared and analyzed. After the joint length and radius of the two ends of the joint are strenghened, the intermediate crack extrusion, boundary effect and its influence on the ultimate bearing capacity were emphasized. The results show that ABAQUS software can be used in the research. The radius of the shield head and the increase of the joint length of the dumbbell-shaped inlaid reinforcement can significantly improve the ultimate bearing capacity of the concrete members after reinforcement, and provide reference for further research and expansion of the research work and engineering practice of the inlaid reinforced concrete members.

关 键 词：混凝土构件 镶嵌式 加固 ABAQUS有限元 参数分析 

分 类 号：TU528[建筑科学—建筑技术科学]