FRP加固钢筋混凝土框架填充墙结构的整体抗震性能试验、分析与设计方法

项目名称： FRP加固钢筋混凝土框架填充墙结构的整体抗震性能试验、分析与设计方法

项目编号： No.51278150

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 建筑科学

项目作者： 王震宇

作者单位： 哈尔滨工业大学

项目金额： 80万元

中文摘要： 针对我国量大面广、且受灾严重的现役钢筋混凝土框架填充墙结构，以FRP加固足尺单层单跨框架填充墙结构基本单元的抗震性能试验与精细化有限元分析为切入点，揭示FRP材料性能与加固方法对框架填充墙结构力学行为、协同工作机制与失效模式的影响规律，建立FRP加固填充墙、框架梁、柱以及节点的宏单元模型，完善框架填充墙结构FRP加固后的弹塑性静、动力抗震分析手段，系统研究FRP加固方法对框架填充墙整体结构抗震性能与失效模式的影响规律，提出FRP抗震加固框架填充墙结构的概念设计原则；在此基础上，采用基于位移的设计思想，研究框架填充墙结构弹塑性层间位移分解为构件变形的解构规则，建立构件变形与FRP加固用量之间的偶联关系，在结构整体抗震性能层面上实现框架填充墙结构的FRP抗震加固设计方法，为建筑抗震设计规范和混凝土结构加固规范的进一步修订提供理论依据和决策支持。

中文关键词： 钢筋混凝土框架；填充墙；纤维增强复合材料；抗震性能；有限元分析

英文摘要： Aiming at the extensive vulnerable existing non-ductile infilled RC frames in China, the experimental study and refine finite element analysis on the full-scaled one story and one bay infilled RC frames retrofitted with fiber-reinforced polymer (FRP) composites have been chosen as the breakthrough point to reveal the influence of FRP material and retrofit modes on the mechanical mechanism, cooperative working mechanism between infilled walls and RC frames, and failure mode of the structure. On the basis of experimental and analytical results, the macro-finite element models of FRP-retrofitted infilled walls, beams, columns and joints are proposed and modeled. Then, the nonlinear static pushover and dynamic time history analysis are conduced to evaluate the whole structural seismic performance and failure modes of the FRP-retrofitted infilled RC frames by using above macro-finite models. Based on the analysis results, the conceptual design principle of FRP-retrofitted infilled RC frame are proposed. Moreover, the decomposition rules which separate the plastic storey displacements into the deformations of members including infilled walls, columns, beams and joints are studied and the relationship between the deformation of structural members and amount of FRP retrofitting are developed. Finally, the seismic retrof

英文关键词： Reinforced concrete frame；Infill wall；Fiber reinforced polymer；Seismic performance；Finite element analysis