本文選題：超高層建筑　切入點(diǎn)：核心筒　出處：《西安工業(yè)大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：超高層建筑是經(jīng)濟(jì)發(fā)展、科技進(jìn)步以及社會需求的結(jié)晶,當(dāng)今世界,尤其是亞太地區(qū)超高層建筑如火如荼,大有"欲與天公試比高"之勢。超高層建筑的高速發(fā)展得益于人們對結(jié)構(gòu)體系認(rèn)識的不斷深化,結(jié)構(gòu)體系的選型,直接決定了建筑結(jié)構(gòu)工期、開發(fā)商資金周轉(zhuǎn)速率、施工單位施工進(jìn)度等問題�？蚣�-核心筒體系綜合了抗側(cè)力體系與承重體系的優(yōu)點(diǎn),滿足了當(dāng)前超高層建筑綜合化、智能化、生態(tài)化和異形化等發(fā)展趨勢,而模架施工技術(shù)又是核心筒剪力墻施工的關(guān)鍵技術(shù)。頂升鋼平臺模架技術(shù)作為一種機(jī)械化程度較高的超高層建筑核心筒施工模板工程技術(shù),其誕生與應(yīng)用,為大幅縮短工程建設(shè)周期、提高經(jīng)濟(jì)性提供了可能。對于結(jié)構(gòu)形式復(fù)雜多變、施工技術(shù)質(zhì)量要求高的超高層建筑而言,出于工程安全控制的要求,施工方往往要準(zhǔn)確了解頂模體系的受力特性和工作性能。因此,對于超高層建筑核心筒頂模技術(shù)的研究及探討非常必要且及時。本文以某超高層建筑T1塔樓工程項目一核心筒模塊化低位少支點(diǎn)整體式頂升鋼平臺模架體系為背景,通過利用有限元軟件Midas Gen對工程施工階段所使用的核心筒頂升鋼平臺模架體系和支承箱梁系統(tǒng)建模計算分析,得到了主次桁架、鋼立柱以及支承箱梁在施工工況、頂升工況、提升工況和停工工況的應(yīng)力和變形云圖;進(jìn)而對不同工況下模型計算結(jié)果進(jìn)行對比分析,分別指出了不利荷載工況對鋼平臺系統(tǒng)主次桁架、鋼立柱的影響。本文主要采用了實(shí)際案例分析及證明的研究方法,提出了超高層建筑核心筒施工中頂模體系在設(shè)計過程中的選型原則;結(jié)合T1塔樓核心筒結(jié)構(gòu)特點(diǎn),確定采用模塊化低位少支點(diǎn)整體式頂升鋼平臺模架體系,并完成了頂模體系各系統(tǒng)的設(shè)計;以工程實(shí)際操作為基礎(chǔ),闡述了頂模體系的工作原理,提出了標(biāo)準(zhǔn)層下頂模體系的爬升工藝流程及相關(guān)質(zhì)量保證措施;提出了模板及頂模架體節(jié)點(diǎn)處理的問題及解決措施,重點(diǎn)對模板的糾偏糾扭及垂直度控制進(jìn)行了方案設(shè)計。本文基于T1塔樓核心筒剪力墻施工,對頂模體系進(jìn)行了一系列研究,具有一定工程參考價值,希望能為今后相關(guān)領(lǐng)域的研究提供一定的支持。
[Abstract]:Super high-rise buildings are the crystallization of economic development, scientific and technological progress and social needs. Today's world, especially in the Asia-Pacific region, is in full swing. The rapid development of super-tall buildings benefits from the deepening of people's understanding of the structure system and the selection of structural systems, which directly determines the construction time limit and the turnover rate of developer funds. The frame-core tube system integrates the advantages of the anti-lateral force system and the load-bearing system, and meets the development trends of the super high-rise building such as synthesis, intelligence, ecology and heterogeneity. The formwork construction technology is the key technology of the core tube shear wall construction. As a kind of high mechanization construction formwork technology for the core tube of the super high-rise building, the technology of lifting steel platform formwork is born and applied. It provides the possibility for shortening the construction period and improving the economy. For the super high-rise building with complex structure form and high quality of construction technology, it is necessary to control the safety of the project. The constructors often need to understand accurately the mechanical characteristics and working performance of the top die system. It is very necessary and timely to study and discuss the technology of top mould of core tube of super high-rise building. This paper takes the mould frame system of low position and low fulcrum of core tube as the background of a project of T1 tower of super high-rise building. By using the finite element software Midas Gen to model and calculate the mould frame system and the supporting box girder system of the steel platform used in the construction stage, the main and secondary truss, the steel column and the supporting box girder are obtained in the construction condition and the jacking condition. The stress and deformation cloud diagram of lifting and shutdown conditions, and the comparison and analysis of the model calculation results under different working conditions, respectively pointing out the adverse load conditions on the steel platform system primary and secondary truss, This paper mainly adopts the research method of practical case analysis and proof, puts forward the selection principle of top formwork system in the design process of core tube construction of super high-rise building, and combines the characteristics of core tube structure of T1 tower building, The mold frame system of modular low stand low fulcrum integral lifting steel platform is adopted, and the design of each system of top die system is completed, and the working principle of top die system is expounded on the basis of practical engineering operation. The climbing process and quality assurance measures of the top die system under the standard layer are put forward, and the problems and solutions of the joint treatment of the formwork and the top die frame are put forward. In this paper, based on the construction of shear wall of core tube of T1 tower, a series of research on top formwork system is carried out, which has certain engineering reference value. Hope to provide some support for future research in related fields.
【學(xué)位授予單位】：西安工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU974

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