本文選題：鋼管混凝土疊合柱　切入點(diǎn)：剪力墻　出處：《大連理工大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：鋼管混凝土疊合柱結(jié)構(gòu),是我國自主開發(fā)的一種結(jié)構(gòu)體系,其較鋼筋混凝土柱和型鋼混凝土柱具有更優(yōu)良的抗壓和抗震性能,具有更好的經(jīng)濟(jì)、社會(huì)效益。 當(dāng)前國內(nèi)外抗震設(shè)計(jì)的發(fā)展趨勢是根據(jù)對結(jié)構(gòu)在不同超越概率水平下的地震作用下的性能或變形要求進(jìn)行設(shè)計(jì),結(jié)構(gòu)彈塑性時(shí)程分析成為抗震設(shè)計(jì)的一個(gè)必要的組成部分。 本文結(jié)合海創(chuàng)國際產(chǎn)業(yè)大廈項(xiàng)目這一鋼管混凝土疊合柱超高層超限結(jié)構(gòu)實(shí)際工程,運(yùn)用結(jié)構(gòu)彈塑性分析解決工程實(shí)際問題,進(jìn)行了以下工作 (1)系統(tǒng)學(xué)習(xí)闡述了地震彈塑性分析的理論基礎(chǔ)。明確地震彈塑性分析的主要目的,理解建筑結(jié)構(gòu)地震彈塑性分析包括兩個(gè)基本要素：1。建筑結(jié)構(gòu)的彈塑性模型；2。地震作用的輸入和計(jì)算。分析靜力彈塑性分析的不足之處后,重點(diǎn)介紹動(dòng)力彈塑性分析。 (2)介紹MIDAS BUILDING動(dòng)力彈塑性分析。MIDAS BUILDING提供了剪力墻纖維模型,將剪力墻劃分為一定數(shù)量的豎向和水平向纖維,采用了可以反映混凝土鋼筋材料非線性和墻單元剪切特性的纖維本構(gòu)關(guān)系；梁、柱鉸特性值可根據(jù)計(jì)算配筋(考慮超配系數(shù))或施工圖的實(shí)配鋼筋計(jì)算,這使得MIDAS BUILDING可以較為精確地反映工程實(shí)際的抗震性能。 (3)介紹鋼管混凝土疊合柱結(jié)構(gòu)及其設(shè)計(jì)概念。鋼管混凝土疊合柱結(jié)構(gòu),是我國自主開發(fā)的一種結(jié)構(gòu)體系。其較鋼筋混凝土柱和型鋼混凝土柱具有更優(yōu)良的抗壓和抗震性能,具有更好的經(jīng)濟(jì)、社會(huì)效益,在實(shí)際工程中得到越來越多地應(yīng)用。 (4)將動(dòng)力彈塑性應(yīng)用在鋼管混凝土疊合柱結(jié)構(gòu)實(shí)際工程中。通過對超限超高層結(jié)構(gòu)進(jìn)行彈塑性分析,從而在找出結(jié)構(gòu)薄弱部位的同時(shí),對結(jié)構(gòu)抗震性能進(jìn)行評判。抗震性能主要通過對結(jié)構(gòu)整體指標(biāo)和構(gòu)件性能兩個(gè)方面來評判。結(jié)構(gòu)整體評估指標(biāo)包括結(jié)構(gòu)頂點(diǎn)位移時(shí)程、彈塑性層間位移角等；構(gòu)件性能評估指標(biāo)包括研究塑性發(fā)展的區(qū)域、損傷程度,構(gòu)件應(yīng)力、應(yīng)變等。
[Abstract]:Concrete-filled steel tubular composite column structure is a self-developed structural system in China. It has better compressive and seismic performance than reinforced concrete column and steel reinforced concrete column, and has better economic and social benefits. At present, the development trend of aseismic design at home and abroad is based on the performance or deformation requirements of structures under earthquake action with different transcendental probability levels. The elastoplastic time-history analysis of structures becomes an essential part of seismic design. In this paper, considering the practical project of Seicang International Industrial Building, which is a concrete filled steel tube superstructure, the elastoplastic analysis of the structure is used to solve the practical problems, and the following works are carried out. 1) the theoretical basis of seismic elastic-plastic analysis is studied systematically. The main purpose of seismic elastic-plastic analysis is defined. It is understood that the seismic elastoplastic analysis of building structures consists of two basic elements: 1. The elastoplastic model of building structures. 2. The input and calculation of seismic action. After analyzing the shortcomings of static elastoplastic analysis, the dynamic elastoplastic analysis is emphatically introduced. This paper introduces the dynamic elastoplastic analysis of MIDAS BUILDING. Midas BUILDING provides the fiber model of shear wall. The shear wall is divided into a certain number of vertical and horizontal fibers. The fiber constitutive relation, which can reflect the material nonlinearity of concrete reinforcement and shear characteristics of wall element, is adopted, and the characteristic value of beam and column hinge can be calculated according to the calculation of reinforcement (considering overmatch coefficient) or the actual reinforced bar of construction drawing. This makes MIDAS BUILDING more accurate to reflect the actual seismic performance of the project. This paper introduces the structure of concrete-filled steel tubular composite column and its design concept. The structure of concrete filled steel tubular column is a kind of structure system developed independently in our country. It has better compressive and seismic performance than reinforced concrete column and steel reinforced concrete column. It has better economic and social benefits, and has been applied more and more in practical projects. The dynamic elastoplasticity is applied to concrete filled steel tube superimposed column structure engineering. Through the elastic-plastic analysis of the super-tall structure, the weak part of the structure can be found at the same time. The seismic performance of the structure is evaluated by two aspects: the whole structure index and the member performance. The structural evaluation index includes the displacement time history of the structure vertex, the displacement angle between the elastic-plastic layer and so on. The performance evaluation index includes the region of plastic development, damage degree, stress and strain.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TU398.9;TU313

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