本文選題：轉(zhuǎn)換層 + 連續(xù)倒塌�。� 參考：《西安科技大學》2017年碩士論文

【摘要】：在國外對于連續(xù)倒塌的研究已經(jīng)經(jīng)歷了三次革命,從第一次的英國公寓倒塌到最近的的美國“911”紐約世貿(mào)中心發(fā)生連續(xù)倒塌,四十年間國外學者對于建筑結(jié)構(gòu)抗連續(xù)倒塌的規(guī)范已經(jīng)在不斷完善,以美國和歐洲規(guī)范為例GSA2003和DOD2010都較為系統(tǒng)的對如何抵抗連續(xù)倒塌做了說明。但是我們國家對于連續(xù)倒塌的研究處于一個開始狀態(tài),當下還沒有可行的抗倒塌實施方案和設(shè)計思路。我國城市建筑中框架結(jié)構(gòu)和框剪結(jié)構(gòu)居多,但是帶有轉(zhuǎn)換層的高層結(jié)構(gòu)在近幾年發(fā)展十分迅速。所以,對帶轉(zhuǎn)換層的建筑結(jié)構(gòu)進行抗倒塌模擬研究不但可以彌補學術(shù)空白,還能夠?qū)ξ覈邔咏Y(jié)構(gòu)設(shè)計規(guī)范進行完善。本文主要研究內(nèi)容如下:(1)采用SAP2000有限元模擬軟件進行分析,分別使用了線性分析和非線性分析,彈性和彈塑性四種分析方法對模型首層長邊的中柱進行了拆除,對比分析了四種方法的不同以及優(yōu)勢,證明了非線性動力分析是一種真實可靠但耗時長的分析手段。(2)采用非線性動力分析方法對建筑結(jié)構(gòu)不同樓層的不同位置結(jié)構(gòu)柱進行了模擬拆除分析,通過失效柱頂點位移時程曲線判斷各個構(gòu)件的抗倒塌能力儲備。(3)利用非線性靜力PUSH-OVER分析方法對不同層不同位置的構(gòu)件進行拆除,作為動力分析的補充說明,最終通過構(gòu)件頂點位移加載曲線來判斷結(jié)構(gòu)是否會失效以及各個構(gòu)件的抗倒塌能力排名。(4)通過各位置結(jié)構(gòu)柱抗倒塌能力排名對比,找出最不利部位,在設(shè)計上對該構(gòu)件進行加強,具體方式可以選擇加強混凝土和鋼筋強度。
[Abstract]:The study of successive collapses abroad has undergone three revolutions, from the first collapse of a British apartment to the recent successive collapse of the World Trade Center in New York, New York. During the past 40 years, foreign scholars have been perfecting the codes for the continuous collapse of building structures. Taking the American and European codes as examples, GSA2003 and DOD2010 have systematically explained how to resist the continuous collapse. However, the research on continuous collapse in our country is in a beginning state, and there is no feasible anti-collapse implementation plan and design idea at present. The frame structure and frame shear structure are the majority of urban buildings in our country, but the high-rise structure with transfer story has developed rapidly in recent years. Therefore, the simulation study of building structure with transfer floor can not only make up for the academic gap, but also improve the design code of high-rise structure in China. The main contents of this paper are as follows: (1) the finite element simulation software SAP2000 is used to analyze the model. Four analysis methods, linear analysis and nonlinear analysis, elastic analysis and elastic-plastic analysis, are used to remove the middle columns with long edges on the first floor of the model. The differences and advantages of the four methods are compared and analyzed. It is proved that nonlinear dynamic analysis is a real and reliable but time-consuming analysis method. The nonlinear dynamic analysis method is used to simulate the demolition of different structural columns on different floors of building structures. The collapse resistance reserve of each member is judged by the time-history curve of the peak displacement of the failure column. The nonlinear static PUSH-OVER analysis method is used to remove the members at different positions of different layers, which is used as a supplementary explanation for the dynamic analysis. Finally, judging whether the structure will fail or not by the displacement loading curve of the member vertex, and the rank of the anti-collapse ability of each member. (4) by comparing the rank of the collapse resistance of the structural column in each position, we find out the most disadvantageous part. In design, the concrete strength of concrete and steel bar can be strengthened.
【學位授予單位】：西安科技大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TU973

【參考文獻】

相關(guān)期刊論文 前10條

1 張富文;呂西林;;鋼筋混凝土平面框架連續(xù)性倒塌的仿真分析[J];結(jié)構(gòu)工程師;2010年01期

2 梁益;陸新征;李易;葉列平;;國外RC框架抗連續(xù)倒塌設(shè)計方法的檢驗與分析[J];建筑結(jié)構(gòu);2010年02期

3 馬人樂;林國鐸;陳俊嶺;何敏娟;;水平分布柱間支撐對多高層鋼框架抗連續(xù)倒塌性能的影響[J];東南大學學報(自然科學版);2009年06期

4 陸新征;李易;葉列平;馬一飛;梁益;;鋼筋混凝土框架結(jié)構(gòu)抗連續(xù)倒塌設(shè)計方法的研究[J];工程力學;2008年S2期

5 易偉建;何慶鋒;肖巖;;鋼筋混凝土框架結(jié)構(gòu)抗倒塌性能的試驗研究[J];建筑結(jié)構(gòu)學報;2007年05期

6 胡曉斌;錢稼茹;;結(jié)構(gòu)連續(xù)倒塌分析與設(shè)計方法綜述[J];建筑結(jié)構(gòu);2006年S1期

7 馬人樂;陳俊嶺;何敏娟;;建筑結(jié)構(gòu)二次防御能力分析方法[J];同濟大學學報(自然科學版);2006年05期

8 朱建華;沈蒲生;;基于能量原理的鋼筋混凝土框架結(jié)構(gòu)倒塌分析[J];科學技術(shù)與工程;2006年08期

9 于山,蘇幼坡,馬東輝,蘇經(jīng)宇;鋼筋混凝土建筑抗倒塌設(shè)計[J];地震工程與工程振動;2005年05期

10 陸新征,江見鯨;世界貿(mào)易中心飛機撞擊后倒塌過程的仿真分析[J];土木工程學報;2001年06期

相關(guān)碩士學位論文 前1條

1 彭真真;帶有轉(zhuǎn)換層的高層建筑結(jié)構(gòu)抗連續(xù)倒塌性能研究[D];西安建筑科技大學;2014年

，

本文編號：2002437