【摘要】：我國(guó)是世界上少數(shù)受風(fēng)災(zāi)害最嚴(yán)重的國(guó)家之一,而各種風(fēng)災(zāi)害中,臺(tái)風(fēng)造成的經(jīng)濟(jì)損失和對(duì)居民生命安全的威脅程度是最大的。從福建、海南、廣東、江浙到山東、東北,我國(guó)海岸線延綿3萬(wàn)多公里,或多或少都會(huì)受到臺(tái)風(fēng)登陸的影響。從對(duì)建筑的影響上來說,風(fēng)災(zāi)損失的主要部分是工程結(jié)構(gòu)的損壞和倒塌。從經(jīng)濟(jì)損失來講,隨著我國(guó)社會(huì)生產(chǎn)力的提高和經(jīng)濟(jì)的高速發(fā)展,風(fēng)災(zāi)造成的損失是難以估量的。因此,對(duì)建筑物進(jìn)行抗風(fēng)設(shè)計(jì)分析極其重要。本文首先強(qiáng)調(diào)了風(fēng)對(duì)建筑物的作用及其危害,以南京江寧區(qū)某住宅項(xiàng)目為實(shí)例進(jìn)行結(jié)構(gòu)抗風(fēng)分析,先闡明了風(fēng)的基本特性、影響因素。隨后對(duì)目前抗風(fēng)理論進(jìn)行簡(jiǎn)單介紹引出對(duì)建筑物的等效靜力荷載分析和靜力彈塑性分析。通過彈性分析到彈塑性分析的過程,對(duì)結(jié)構(gòu)的抗風(fēng)性能有了清晰的認(rèn)識(shí)。文章采用MIDAS GEN對(duì)實(shí)例進(jìn)行等效靜力荷載分析,包括其特征值、應(yīng)力應(yīng)變、層間位移角及整體穩(wěn)定性,先對(duì)建筑在正常狀態(tài)下的抗風(fēng)性能作出簡(jiǎn)單評(píng)估。再次對(duì)結(jié)構(gòu)進(jìn)行靜力彈塑性Pushover推覆分析,結(jié)合等效靜力分析,最后結(jié)果得出結(jié)論,滿足規(guī)范要求及實(shí)際工程需要。
[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.
【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TU973

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本文編號(hào)：2171092