【摘要】：帶托柱轉(zhuǎn)換層的高層鋼筋混凝土建筑結(jié)構(gòu)，因其結(jié)構(gòu)形式在豎直方向上不規(guī)則，所以在地震作用下的受力特性較為復(fù)雜。但此建筑結(jié)構(gòu)由于空間布置的靈活性，又廣泛應(yīng)用于現(xiàn)代對使用功能要求多元化的高層建筑中。我國抗震規(guī)范中“小震不壞、中震可修、大震不倒”的抗震設(shè)防目標(biāo)，雖然可以保證結(jié)構(gòu)的安全，但它可能導(dǎo)致中、大震作用下結(jié)構(gòu)正常使用功能的喪失而引起巨大的經(jīng)濟(jì)損失。為了強(qiáng)化結(jié)構(gòu)抗震的安全目標(biāo)，提高結(jié)構(gòu)抗震性能，滿足不同業(yè)主的安全需要，國際上開始研究和應(yīng)用基于性能的抗震設(shè)計方法。在帶托柱轉(zhuǎn)換層的高層建筑結(jié)構(gòu)抗震設(shè)計中采用基于性能的抗震設(shè)計方法有助于提高托柱轉(zhuǎn)換結(jié)構(gòu)抗震設(shè)計的可靠性、避免抗震安全隱患，，同時又促進(jìn)托柱轉(zhuǎn)換結(jié)構(gòu)的技術(shù)發(fā)展。 本文在參考了大量國內(nèi)外文獻(xiàn)的基礎(chǔ)上，對比了常用的兩種托柱轉(zhuǎn)換結(jié)構(gòu)，即梁式托柱轉(zhuǎn)換結(jié)構(gòu)和桁架式托柱轉(zhuǎn)換結(jié)構(gòu)，他們的受力特點(diǎn)、計算原則、布置原則和設(shè)計原則。并比較了中、美兩國性能目標(biāo)的確定原則，且基于我國的現(xiàn)行規(guī)范確定了托柱轉(zhuǎn)換結(jié)構(gòu)的性能目標(biāo)及在不同性能目標(biāo)下的性能指標(biāo)。 文中以一帶轉(zhuǎn)換層的高層鋼筋混凝土建筑結(jié)構(gòu)為案例，提出了三種轉(zhuǎn)換桁架及一種轉(zhuǎn)換梁的設(shè)計方案。按照性能目標(biāo)的選用原則，確定了本建筑結(jié)構(gòu)的性能目標(biāo)，且基于該性能目標(biāo)采用SATWE軟件對結(jié)構(gòu)進(jìn)行抗震設(shè)計。并利用有限元軟件Midas Building建立結(jié)構(gòu)的有限元模型分別對結(jié)構(gòu)進(jìn)行多遇地震、設(shè)防地震和罕遇地震水準(zhǔn)作用下的地震反應(yīng)分析。最后通過對比幾種設(shè)計方案下結(jié)構(gòu)在不同地震水準(zhǔn)時的抗震性能從而總結(jié)了不同形式轉(zhuǎn)換層的受力及抗震性能，并推薦出相對較優(yōu)的托柱轉(zhuǎn)換層結(jié)構(gòu)型式，以期為類似工程的設(shè)計提供些許參考。
[Abstract]:Because the structural form of high-rise reinforced concrete building with bracket-column transfer floor is irregular in vertical direction, the stress characteristics of high-rise reinforced concrete building under earthquake action are more complex. However, due to the flexibility of spatial layout, this building structure is widely used in modern high-rise buildings with diversified functional requirements. Although the seismic fortification target of "small earthquake is not bad, medium earthquake can be repaired and large earthquake can not fall" in the seismic code of our country, although it can ensure the safety of the structure, it may lead to the loss of the normal use function of the structure under the action of medium and large earthquakes and cause huge economic losses. In order to strengthen the seismic safety goal of the structure, improve the seismic performance of the structure and meet the safety needs of different owners, the performance-based seismic design method has been studied and applied in the world. The performance-based seismic design method in the seismic design of high-rise building structures with support column transfer floor is helpful to improve the reliability of seismic design of support-column transfer structure, avoid the hidden danger of seismic safety, and at the same time promote the technical development of support-column transfer structure. On the basis of referring to a large number of domestic and foreign literatures, this paper compares two commonly used support column transfer structures, namely, beam support column transfer structure and truss support column transfer structure, their stress characteristics, calculation principles, layout principles and design principles. The determination principles of the performance objectives of China and the United States are compared, and the performance objectives of the bracket transfer structure and the performance indexes under different performance objectives are determined based on the current specifications of our country. Taking the high-rise reinforced concrete building structure with transfer floor as an example, three kinds of transfer trusses and one kind of transfer beam design scheme are put forward in this paper. According to the selection principle of the performance target, the performance goal of the building structure is determined, and based on the performance goal, the seismic design of the structure is carried out by using SATWE software. The finite element model of the structure is established by using the finite element software Midas Building to analyze the seismic response of the structure under the action of frequent earthquakes, fortification earthquakes and rare earthquakes. Finally, by comparing the seismic performance of several design schemes under different seismic levels, the stress and seismic performance of different forms of transfer stories are summarized, and a relatively optimal structure type of support column transfer floor is recommended, in order to provide some reference for the design of similar projects.
【學(xué)位授予單位】：重慶大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TU973.31

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本文編號：2500539