【摘要】：控制結(jié)構(gòu)的側(cè)移剛度均勻變化是結(jié)構(gòu)概念設(shè)計的重要內(nèi)容。中國、美國、日本等國家規(guī)范都有關(guān)于控制側(cè)移剛度的要求。目前對框架結(jié)構(gòu)的側(cè)移剛度多采用樓層剪力和層間位移計算的側(cè)移剛度比來控制，很多學(xué)者對此也進行了大量的研究，并取得了一定的成果。樓層高度變化是很正常的現(xiàn)象，當(dāng)樓層層高比較大時，這種方法常常過于嚴(yán)格而難以滿足。而采用樓層剪力和層間位移角計算側(cè)移剛度比的方法能很好解決這個問題，于是本文將對于這兩種側(cè)移剛度計算方法的控制效果進行對比分析。 本文主要針對框架結(jié)構(gòu)的這兩種側(cè)移剛度比計算方法的適用性進行對比分析�！陡邔咏ㄖ炷两Y(jié)構(gòu)技術(shù)規(guī)程》JGJ3-2010規(guī)范（下文簡稱JGJ規(guī)范）和《高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程》15-92-2013規(guī)范（下文簡稱DBJ規(guī)范）分別對應(yīng)這兩種側(cè)移剛度計算方法及其限值。鋼結(jié)構(gòu)因其本構(gòu)簡單，以其作為分析基礎(chǔ)通常更能反映框架結(jié)構(gòu)地震作用下側(cè)移剛度比的變化規(guī)律。本文第二章先從鋼框架結(jié)構(gòu)的角度對三類模型在罕遇地震作用下的性能分析，第三章從變形控制的角度分別探討兩種側(cè)移剛度比計算方法的合理限值并解析現(xiàn)有限值的控制依據(jù)，第四章則針對鋼筋混凝土框架結(jié)構(gòu)角度第三類模型進行ABAQUS彈塑性分析，，驗證鋼框架結(jié)構(gòu)得到規(guī)律在鋼筋混凝土框架結(jié)構(gòu)的適用性。通過本文的分析工作，得到如下結(jié)論： ①JGJ規(guī)范側(cè)移剛度比計算方法及限值對變形突變的控制更加嚴(yán)格，即 1.1；DBJ側(cè)移剛度比計算方法及限值對變形突變的控制相對較松，即1.2。 ②從鋼框架結(jié)構(gòu)的角度進行分析發(fā)現(xiàn):對結(jié)構(gòu)的側(cè)移剛度必須采取合適的方式進行控制,否則結(jié)構(gòu)在罕遇地震作用下會出現(xiàn)變形集中從而帶來結(jié)構(gòu)的倒塌破壞。對于側(cè)移剛度比值只滿足DBJ規(guī)范要求而不滿足JGJ規(guī)范要求的鋼框架及鋼筋混凝土框架結(jié)構(gòu)在大震下仍具有良好的抗震性能，我們認(rèn)為DBJ規(guī)范側(cè)移剛度比計算方法及限值也能對結(jié)構(gòu)的側(cè)向剛度均勻性取得較好的控制效果。
[Abstract]:It is an important content of conceptual design to control the uniform change of lateral stiffness of structure. China, the United States, Japan and other national codes have the control of lateral stiffness requirements. At present, the lateral stiffness of frame structure is controlled by the ratio of floor shear force and floor displacement. Many scholars have also done a lot of research on it, and achieved some results. The change of floor height is a normal phenomenon. When the floor height is large, this method is often too strict to be satisfied. The method of floor shear force and interstory displacement angle to calculate the ratio of lateral displacement stiffness can solve this problem very well, so the control effect of these two methods is compared and analyzed in this paper. In this paper, the applicability of these two lateral stiffness ratio calculation methods for frame structures is compared and analyzed. JGJ3-2010 Code (hereinafter referred to as JGJ Code) and < High-rise Building concrete structures < Technical Specification for High-rise Building concrete structures Technical specifications > 15-92-2013 (hereinafter referred to as DBJ Code) correspond to these two lateral stiffness calculation methods and their limits respectively. Because of its simple constitutive structure, steel structure can usually reflect the variation of lateral displacement stiffness ratio under seismic action of frame structure. In the second chapter, the behavior of three kinds of models under rare earthquake is analyzed from the point of view of steel frame structure. The third chapter discusses the reasonable limit values of two lateral stiffness ratio calculation methods from the angle of deformation control and analyzes the control basis of the existing limit values. In the fourth chapter, the ABAQUS elastic-plastic analysis is carried out for the third kind of angle model of reinforced concrete frame structure. The applicability of the rule of steel frame structure in reinforced concrete frame structure is verified. Through the analysis of this paper, the following conclusions are obtained: the calculation method of lateral stiffness ratio and the limit value of 1JGJ code are more strict to control the sudden change of deformation, I. E. 1.1; The calculation method and limit value of DBJ lateral displacement stiffness ratio are relatively loose to control the sudden change of deformation, that is, 1.2.2 from the point of view of steel frame structure, it is found that the lateral stiffness of the structure must be controlled in a suitable way. Otherwise, the deformation concentration of the structure under rare earthquake will lead to the collapse and destruction of the structure. For steel frames and reinforced concrete frame structures whose lateral stiffness ratio only meets the requirements of DBJ code but does not meet the requirements of JGJ code, they still have good seismic performance under large earthquakes. We think that the calculation method and limit value of lateral stiffness ratio of DBJ code can also obtain good control effect on lateral stiffness uniformity of the structure.
【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】：TU375.4

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本文編號：2229546