【摘要】：基于大空間復(fù)雜混合結(jié)構(gòu)越來越多地應(yīng)用于工程實(shí)踐，對(duì)其進(jìn)行更深入的本質(zhì)了解和計(jì)算如何更方便地應(yīng)用于工程實(shí)踐已經(jīng)迫在眉睫。本文針對(duì)復(fù)雜混合結(jié)構(gòu)的協(xié)同分析和整體地震響應(yīng)，結(jié)合相關(guān)的參考文獻(xiàn)，在前人的工作基礎(chǔ)上，以某大劇院為背景，應(yīng)用通用設(shè)計(jì)有限元軟件Midas Gen,研究大劇院的協(xié)同工作性能和整體協(xié)同結(jié)構(gòu)在地震下的響應(yīng)。本文主要做了以下工作： 1）從建筑功能性和外觀性出發(fā)，對(duì)大劇院進(jìn)行結(jié)構(gòu)方案的確定和概念選型分析評(píng)價(jià)。 2）根據(jù)某大劇院的基本情況，根據(jù)不同體系特點(diǎn)，應(yīng)用相應(yīng)的計(jì)算假定，采用不同的設(shè)計(jì)軟件進(jìn)行單體設(shè)計(jì)，并在MidasGen平臺(tái)下校核和組裝成整體模型。 3）對(duì)單體模型和整體協(xié)同計(jì)算模型進(jìn)行動(dòng)靜力分析和自振特性分析。分析內(nèi)容包括：①分析不同單體和整體結(jié)構(gòu)在動(dòng)靜力下的反力、位移、內(nèi)力、穩(wěn)定性響應(yīng)，穩(wěn)定性主要討論了線彈性特征值屈曲問題和考慮幾何非線性時(shí)第二類穩(wěn)定問題，提出可供參考的屈曲荷載因子；②Rayleigh-ritz向量法計(jì)算所得頻譜、基頻、振型分析；③不同下部支承剛度和不同下部質(zhì)量下，結(jié)構(gòu)的靜內(nèi)力和動(dòng)內(nèi)力響應(yīng)（重點(diǎn)觀測網(wǎng)架部分）。分析結(jié)果表明：整體協(xié)同下結(jié)構(gòu)某些部位的內(nèi)力及位移等偏不利，有條件時(shí)工程設(shè)計(jì)宜考慮整體協(xié)同作用。 4）對(duì)整體協(xié)同模型進(jìn)行高烈度區(qū)多點(diǎn)多維地震輸入的補(bǔ)充計(jì)算，對(duì)比計(jì)算結(jié)果，，探討多點(diǎn)多維計(jì)算情況下整體結(jié)構(gòu)的地震響應(yīng)。 5）最后，根據(jù)分析得到的研究成果，對(duì)影響混合結(jié)構(gòu)協(xié)同效應(yīng)和地震響應(yīng)的主要因素和相關(guān)表現(xiàn)進(jìn)行了總結(jié)，并提出意見和建議。
[Abstract]:Based on the fact that large space complex hybrid structures are more and more applied to engineering practice, it is urgent to understand and calculate how to apply them more conveniently in engineering practice. In this paper, according to the collaborative analysis and overall seismic response of complex hybrid structures, combined with related references, and on the basis of previous work, based on the background of a grand theater, a general finite element design software Midas Gen, is applied in this paper. The cooperative performance of the Grand Theater and the response of the whole cooperative structure under earthquake are studied. The main work of this paper is as follows: 1) from the point of view of architectural function and externality, the structure scheme of the Grand Theater is determined and the concept selection is analyzed and evaluated. 2) according to the basic situation of a theater, according to the characteristics of different systems, the corresponding calculation assumptions are applied, and different design software is used to design the monomers, and the whole model is checked and assembled under the platform of MidasGen. 3) the dynamic and static analysis and the natural vibration characteristic analysis of the single model and the whole collaborative calculation model are carried out. The main contents of the analysis are as follows: (1) the response, displacement, internal force, stability response and stability of different monomers and whole structures under dynamic and static conditions are analyzed, and the buckling of linear elastic eigenvalues and the second kind of stability problems considering geometric nonlinearity are discussed. The buckling load factors which can be used for reference are put forward. The frequency spectrum, fundamental frequency and mode shape analysis obtained by 2Rayleigh-ritz vector method, and (3) the static and dynamic internal force responses of the structure under different lower support stiffness and different lower mass (focus on the observation of the space truss part). The analysis results show that the internal force and displacement of some parts of the structure under the overall coordination are unfavorable, and the overall synergy should be considered in the engineering design under the conditions. 4) the supplementary calculation of multi-point and multi-dimensional earthquake input in high intensity region is carried out, and the seismic response of the whole structure under multi-point and multi-dimensional calculation is discussed by comparing the calculated results. 5) finally, according to the research results obtained from the analysis, the main factors affecting the synergistic effect and seismic response of the hybrid structure and the related performance are summarized, and some suggestions and suggestions are put forward.
【學(xué)位授予單位】：重慶大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TU399;TU318

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