| 典型砖木结构农居地震弹塑性有限元分析 |
| |
| 引用本文： | 姚新强,孙柏涛,陈宇坤,杨绪连.典型砖木结构农居地震弹塑性有限元分析[J].西北地震学报,2018,40(1):32-40. |
| |
| 作者姓名： | 姚新强 孙柏涛 陈宇坤 杨绪连 |
| |
| 作者单位： | 天津市地震局;中国地震局工程力学研究所; |
| |
| 基金项目： | 天津市自然科学基金（17JCQNJC07000）；中国地震局地震应急青年重点任务（CEA_EDEM-201702）；中国地震局地震科技星火计划项目（XH18005） |
| |
| 摘 要： | 针对我国农居结构中比例最高的砖木结构,选取典型结构运用ABAQUS有限元软件进行模态和地震时程弹塑性分析。给出M0.5和M5两种砌筑强度砖木结构农居的前三阶特征周期和振型,并与经验周期公式值进行对比分析,提出后者存在的问题和修改建议。选取天津波作为地震动时程输入,分别计算不同峰值加速度下两种砖木结构农居弹塑性地震反应,给出相应的拉损伤云图,并对结构的破坏特征进行分析,给出结构抗震薄弱部位。结果表明,砌筑强度是决定结构抗震能力的关键因素之一。
|
| 关 键 词： | 砖木结构 模态 弹塑性 拉损伤 |
| 收稿时间： | 2017/2/10 0:00:00 |
Elasto-plastic Finite Element Analysis of Typical Brick-Wood Rural Buildings Under Ground Motions |
| |
| YAO Xinqiang,SUN Baitao,CHEN Yukun and YANG Xulian.Elasto-plastic Finite Element Analysis of Typical Brick-Wood Rural Buildings Under Ground Motions[J].Northwestern Seismological Journal,2018,40(1):32-40. |
| |
| Authors: | YAO Xinqiang SUN Baitao CHEN Yukun and YANG Xulian |
| |
| Institution: | Earthquake Administration of Tianjin Municipality, Tianjin 300201, China,Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, Heilongjiang, China,Earthquake Administration of Tianjin Municipality, Tianjin 300201, China and Earthquake Administration of Tianjin Municipality, Tianjin 300201, China |
| |
| Abstract: | Aiming at brick-wood rural residence that occupies the highest proportion among all rural residences in China, an elasto-plastic analysis on mode and acceleration time-histories of a typical structure is examined by applying ABAQUS software. The first three characteristic periods and vibration modes of two brick-wood rural buildings with masonry strengths of M0.5 and M5 are given, and the results are then compared and analyzed with the value calculated using an empirical formula, proposing the problems and suggestions on empirical formula revisions. In this study, by taking Tianjin seismic waves as the input ground motion, this study calculates the elasto-plastic responses of two different brick-wood rural buildings at different seismic peak accelerations and depicts the corresponding tensile damage nephograms. The damage characteristics and seismic weak part of the structure are also analyzed. The contrastive analysis on different masonry strengths shows that the masonry strength is a key factor affecting the seismic capability of the structure. |
| |
| Keywords: | brick-wood structure mode elasto-plastic tensile damage |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《西北地震学报》浏览原始摘要信息 |
| 点击此处可从《西北地震学报》下载免费的PDF全文 |
|
