Journal of Hebei University of Water Resources and Electric Engineering

Journal of Hebei University of Water Resources and Electric Engineering ›› 2019, Vol. 29 ›› Issue (3): 34-39.DOI: 10.16046/j.cnki.issn2096-5680.2019.03.005

• Technology Theory and Application • Previous Articles     Next Articles

Numerical Analysis of Mechanical Performance for New and Old Concrete Interface Installed Three-Dimensional Steel Mesh Mat

LI Bin1,XIAO Cheng-zhi 2,SUN Wen-jun3   

  1. 1.Tianjin highway Engineering Design Research Institute,300170,Tianjin,China;
    2.Hebei University of Technology,300401,Tianjin,China;
    3.Hebei University of Water Resources and Electric Engineering,061001,Cangzhou,Hebei,China

  • Received:2019-03-13 Revised:2019-06-28 Online:2019-09-30 Published:2019-10-31

在新老混凝土界面设置三维钢筋网垫的力学性能数值分析

李 斌1，肖成志2，孙文君3   

  1. 1.天津市公路工程设计研究院，天津市河东区东兴路218号 300170;
    2.河北工业大学，天津市西平道5340号 300401;
    3.河北水利电力学院，河北省沧州市重庆路1号 061001

  • 通讯作者: 肖成志(1976-)，男，教授，主要从事道路工程与岩土工程方面的研究工作｡E-mail:chengzhixiao@hotmail.com
  • 作者简介:李 斌(1977-)，男，高级工程师，主要从事道路与桥梁工程方面的设计与研究工作｡E-mail:1186785901@qq.com
  • 基金资助:
    天津交通运输科技发展计划项目（2018-09）;; 河北省自然科学基金项目资助（E2018202108）;; 河北省省级科技计划自筹经费项目（16275419）

PDF

Abstract: Interface properties of new and old concrete is one of the important factors for concrete maintenance.Herein,a new type of conjunction mode reinforced by three-dimensional steel mesh mat has been put forward and used in practical concrete repairing project.Based on ABAQUS finite element software,numerical simulation of new-old concrete composite slab model of bridge strengthened with three-dimensional steel mesh mat is carried out to compare and analyze the connection property of the two different concrete interface bonding models.The results show that after installing three-dimensional steel mesh mat between the new and old concrete interface,the integrity of the structure is significantly improved,the stress transfer performance becomes better and the displacement on the joint surface decreases obviously under the same load.

Key words: new and old concrete, joint interface, numerical simulation, mechanical performance

摘要： 新老混凝土界面粘结性能是影响混凝土路面修补效果的重要因素之一,通过在界面设置新型三维钢筋网垫来改善新老混凝土连接性能,并基于ABAQUS有限元软件对采用三维钢筋网垫加固的混凝土路面进行数值模拟,对比分析有无三维钢筋网垫设置时混凝土界面连接性能,分析结果表明:新老混凝土界面间设置三维钢筋网垫后,混凝土路面结构的整体性显著提高,界面应力传递趋于均匀且性能更好,在相同荷载作用下,结合面上的位移明显减小。

关键词:  , 新老混凝土, 连接界面, 数值模拟, 力学性能

CLC Number: