本文選題：超高層 + 筒體剪力墻�。� 參考：《北京建筑大學》2017年碩士論文

【摘要】：在超高層結(jié)構(gòu)的常規(guī)結(jié)構(gòu)設(shè)計方法中,很多結(jié)構(gòu)設(shè)計人員在保證結(jié)構(gòu)安全性的同時忽略了對結(jié)構(gòu)進行更深入的優(yōu)化。這些優(yōu)化不僅能減少投資方的投資,減少不必要的損失,還能節(jié)約資源,減少浪費。本課題的研究目的就是通過對實際工程項目進行分析研究,將超高層結(jié)構(gòu)筒體設(shè)計的基本要點予以提煉,構(gòu)成一套行之有效的設(shè)計指導流程。首先,本文選取設(shè)計院六個超高層項目并對他們進行優(yōu)化分析,通過計算得到材料用量統(tǒng)計來討論筒體剪力墻結(jié)構(gòu)材料用量的外部影響因素。主要研究了結(jié)構(gòu)高度、抗震設(shè)防烈度、結(jié)構(gòu)體系共三個主要外部因素的對結(jié)構(gòu)整體材料用量的影響。外部因素的影響效果分析結(jié)論通常在工程項目前期可以發(fā)揮重要參考價值,因而本章結(jié)論主要可以作為指導項目前期的方案和決策階段的重要依據(jù),可以用來知道筒體剪力墻優(yōu)化設(shè)計措施的項目前期設(shè)計。其次,介紹了YJK、PUSHOVER、SAUSAGE的主要計算原理,是本文的研究方法和理論依據(jù),并作為后續(xù)研究的技術(shù)基礎(chǔ)。第三,分析了筒體剪力墻結(jié)構(gòu)材料用量內(nèi)部影響因素分析的結(jié)構(gòu)優(yōu)化方案。引入內(nèi)部因素分析,并結(jié)合內(nèi)部影響因素的初步判別結(jié)果提出結(jié)構(gòu)優(yōu)化方案,主要分為四部分:(1)筒體剪力墻結(jié)構(gòu)材料用量內(nèi)部影響因素分析。主要是通過力學機理分析提出可能影響剪力墻結(jié)構(gòu)材料用量的內(nèi)部影響因素;(2)內(nèi)墻、外墻布置影響分析,該部分內(nèi)容主要針對筒體結(jié)構(gòu)的內(nèi)墻、外墻分配比例予以分析和提出相應(yīng)的結(jié)構(gòu)優(yōu)化方案;(3)連梁剛度及設(shè)性能置方案分析,該部分主要針對筒體剪力墻的連梁的設(shè)置方案進行分析,并提出相應(yīng)的結(jié)構(gòu)優(yōu)化方案;(4)墻肢長度比選分析,該部分主要針對筒體剪力墻墻肢長度及結(jié)構(gòu)洞設(shè)置方案進行分析,并提出相應(yīng)的結(jié)構(gòu)優(yōu)化方案。最后,通過PUSHOVER和SAUSAGE有限元分析軟件對優(yōu)化后的結(jié)構(gòu)進行性能分析及安全性論證。從經(jīng)濟層面以外的結(jié)構(gòu)合理性和結(jié)構(gòu)安全性方面展開論證,即從小震彈性指標分析和大彈塑性損傷分析來分工況論證,證明了采取的的優(yōu)化措施不以犧牲結(jié)構(gòu)安全性作為代價。從而驗證了優(yōu)化方法的合理性。
[Abstract]:In the conventional structural design methods of super-tall structures, many structural designers neglect to optimize the structures while ensuring the safety of the structures. These optimizations can not only reduce the investment of investors, reduce unnecessary losses, but also save resources and reduce waste. The purpose of this research is to analyze and study the actual engineering projects, to refine the basic points of the design of the super-tall structure cylinder, and to form a set of effective design guidance flow. Firstly, this paper selects six super high-rise projects of the design institute and optimizes them, and discusses the external influence factors of the material quantity of the tubular shear wall structure by calculating the material consumption statistics. The effects of three main external factors, such as structural height, seismic fortification intensity and structural system, on the material consumption of the whole structure are studied. The conclusion of the analysis of the effect of external factors can usually play an important reference value in the early stage of the project, so the conclusion of this chapter can be used as the important basis to guide the plan and decision-making stage of the early stage of the project. It can be used to know the optimal design measures of the tubular shear wall. Secondly, the main calculation principle of YJKPUSHOVERGE-SAUSAGE is introduced, which is the research method and theoretical basis of this paper, and serves as the technical basis for further research. Thirdly, the structural optimization scheme of the internal influencing factors analysis of the material content of the tubular shear wall structure is analyzed. By introducing internal factor analysis and combining with the preliminary discriminant result of internal influence factors, the structural optimization scheme is put forward, which is mainly divided into four parts: 1) the internal influence factor analysis of material quantity of tubular shear wall structure. Through the analysis of mechanics mechanism, the paper puts forward the internal influence factors that may affect the material content of shear wall structure, such as internal wall and exterior wall arrangement, which are mainly aimed at the inner wall of tube structure. The distribution ratio of external wall is analyzed and the corresponding structural optimization scheme is put forward. The stiffness and performance of connecting beam are analyzed. This part is mainly aimed at the arrangement scheme of connecting beam of tubular shear wall. The paper also puts forward the corresponding structural optimization scheme and gives a comparative analysis of the length of the wall limb. This part mainly analyzes the length of the wall limb of the cylinder shear wall and the configuration scheme of the structure hole, and puts forward the corresponding structural optimization scheme. Finally, the performance analysis and safety analysis of the optimized structure are carried out by using the software of pusher and SAUSAGE finite element analysis. The rationality and safety of structures beyond the economic level are discussed, that is, the analysis of elastic index of small earthquakes and the analysis of large elastic-plastic damage. It is proved that the optimization measures adopted are not at the expense of structural safety. The rationality of the optimization method is verified.
【學位授予單位】：北京建筑大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TU973.1

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