高层框剪结构抗风分析
发布时间：2018-08-07 19:19
【摘要】：我国是世界上少数受风灾害最严重的国家之一,而各种风灾害中,台风造成的经济损失和对居民生命安全的威胁程度是最大的。从福建、海南、广东、江浙到山东、东北,我国海岸线延绵3万多公里,或多或少都会受到台风登陆的影响。从对建筑的影响上来说,风灾损失的主要部分是工程结构的损坏和倒塌。从经济损失来讲,随着我国社会生产力的提高和经济的高速发展,风灾造成的损失是难以估量的。因此,对建筑物进行抗风设计分析极其重要。本文首先强调了风对建筑物的作用及其危害,以南京江宁区某住宅项目为实例进行结构抗风分析,先阐明了风的基本特性、影响因素。随后对目前抗风理论进行简单介绍引出对建筑物的等效静力荷载分析和静力弹塑性分析。通过弹性分析到弹塑性分析的过程,对结构的抗风性能有了清晰的认识。文章采用MIDAS GEN对实例进行等效静力荷载分析,包括其特征值、应力应变、层间位移角及整体稳定性,先对建筑在正常状态下的抗风性能作出简单评估。再次对结构进行静力弹塑性Pushover推覆分析,结合等效静力分析,最后结果得出结论,满足规范要求及实际工程需要。
[Abstract]:China is one of the few countries most seriously affected by wind disasters in the world, and among all kinds of wind disasters, the economic losses caused by typhoons and the threats to the safety of residents' lives are the greatest. From Fujian, Hainan, Guangdong, Jiangsu and Zhejiang provinces to Shandong, northeast, the coastline of our country extends more than 30,000 kilometers, which will be affected more or less by typhoon landfall. From the impact on the building, the main part of the wind disaster loss is the damage and collapse of the engineering structure. In terms of economic losses, with the improvement of social productivity and the rapid development of economy, the damage caused by wind disaster is incalculable. Therefore, it is very important to design and analyze the wind resistance of buildings. This paper first emphasizes the effect of wind on buildings and its harm. Taking a residential project in Jiangning district of Nanjing as an example to analyze the structural wind resistance, the basic characteristics and influencing factors of wind are expounded. Then, the current theory of wind resistance is briefly introduced, which leads to the equivalent static load analysis and static elastic-plastic analysis of buildings. Through the process of elastic analysis to elastoplastic analysis, the wind-resistant performance of the structure is clearly understood. In this paper, MIDAS GEN is used to analyze the equivalent static load of an example, including its eigenvalue, stress and strain, interstory displacement angle and overall stability. First, the wind resistance of the building under normal condition is simply evaluated. Thirdly, the static elastoplastic Pushover nappe analysis of the structure is carried out. Combined with the equivalent static analysis, the final conclusion is drawn, which meets the requirements of the code and the practical engineering requirements.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU973
本文编号：2171092
[Abstract]:China is one of the few countries most seriously affected by wind disasters in the world, and among all kinds of wind disasters, the economic losses caused by typhoons and the threats to the safety of residents' lives are the greatest. From Fujian, Hainan, Guangdong, Jiangsu and Zhejiang provinces to Shandong, northeast, the coastline of our country extends more than 30,000 kilometers, which will be affected more or less by typhoon landfall. From the impact on the building, the main part of the wind disaster loss is the damage and collapse of the engineering structure. In terms of economic losses, with the improvement of social productivity and the rapid development of economy, the damage caused by wind disaster is incalculable. Therefore, it is very important to design and analyze the wind resistance of buildings. This paper first emphasizes the effect of wind on buildings and its harm. Taking a residential project in Jiangning district of Nanjing as an example to analyze the structural wind resistance, the basic characteristics and influencing factors of wind are expounded. Then, the current theory of wind resistance is briefly introduced, which leads to the equivalent static load analysis and static elastic-plastic analysis of buildings. Through the process of elastic analysis to elastoplastic analysis, the wind-resistant performance of the structure is clearly understood. In this paper, MIDAS GEN is used to analyze the equivalent static load of an example, including its eigenvalue, stress and strain, interstory displacement angle and overall stability. First, the wind resistance of the building under normal condition is simply evaluated. Thirdly, the static elastoplastic Pushover nappe analysis of the structure is carried out. Combined with the equivalent static analysis, the final conclusion is drawn, which meets the requirements of the code and the practical engineering requirements.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU973
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