钢筋混凝土框架结构抗震加固方法应用研究  

Application and Research of the Seismic Strengthening Method for Reinforced Concrete Structure

作　　者：田飞[1] 李慧民[1] 万婷婷[1] 王静[1] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《工程抗震与加固改造》2015年第2期126-130,125,共6页Earthquake Resistant Engineering and Retrofitting

基　　金：国家自然科学基金面上项目(51178386);陕西省自然科学基金项目(2009JM7003)

摘　　要：基于大量钢筋混凝土框架结构建筑物接近设计使用年限,或者部分建筑在遭受地震后出现不同程度的损坏、或者国内部分地区抗震设防要求提高等原因,许多建筑物需要按照现行规范进行抗震加固。本文以某钢筋混凝土框架结构公寓楼抗震加固工程为例,分别应用增设剪力墙、增设钢支撑、扩大柱截面三种方法进行加固设计,然后采用ANSYS软件对加固后结构的弹性位移角、结构构件内力、结构弹塑性位移角进行对比分析,同时结合实际施工要求进一步分析了每种方法的可行性,归纳出三种方法的优劣,为该加固工程选择合适的加固方法提供依据。通过本文的研究,期望为类似工程的抗震加固提供一定的参考。Because a large number of buildings is close to design working life,some buildings appear varying degrees of damage after earthquake,at the same time the domestic parts requirements for seismic resistance have been increased,so there are a large number of buildings need to be reinforced in accordance with the current specification seismic strengthening code. Taking a seismic reinforcement project of a reinforced concrete frame as an example,three strengthening methods is applied to the structure,such as adding steel support,arranging the steel reinforcement,enlarging section method,then the software ANSYS is used to analyze the elastic displacement angle,internal force and elastic-plastic displacement angle of the structure,at the same time have a further analysis combined with the actual construction requirements,summ up the pros and cons of three kinds of strengthening methods. It could provide a basis to choose the appropriate reinforcement method for the reinforcement project and a powerful reference for future similar projects.

关 键 词：钢筋混凝土框架结构 剪力墙 钢支撑 柱截面 时程分析法 

分 类 号：TU375.4[建筑科学—结构工程]