帶板式轉換層的框架剪力墻結構抗震性能研究
發(fā)布時間：2018-11-05 16:48
【摘要】：隨著建筑行業(yè)的發(fā)展以及人們對建筑功能的需求,帶轉換層的高層建筑已經廣泛地應用于人們的生活當中。在我國應用最多的轉換層結構是梁式轉換層,工程界對于梁式轉換層的研究相對較多也比較深入,一些研究成果已經寫入了現行規(guī)范。板式轉換層在地震區(qū)應用的相對較少,工程界對于板式轉換層的研究還不夠深入,隨著人們對建筑功能的要求越來越高,板式轉換層的使用也會越來越多,對板式轉換層的研究也將更加深入。本文結合板式轉換結構的應用現狀及文獻資料,系統地研究了板式轉換結構的理論及抗震計算方法。針對板式轉換結構的抗震性能問題,利用有限元分析軟件ANSYS建立數值計算模型,對結構進行了動力特性、反應譜與瞬態(tài)動力學分析,研究了板式轉換結構的動力性能及地震響應,并且對比了梁式轉換結構與板式轉換結構在抗震性能方面的差異,分析了轉換形式的改變對自振周期、樓層位移、層間位移角以及樓層剪力的影響。結果表明：對于轉換層上下軸線錯開較多的框架剪力墻結構,板式轉換層比梁式轉換層整體抗震性能好,局部抗震性能稍差,在進行結構選型時,要綜合考慮多方面的因素；板式轉換結構布置合理時,能夠在7度地區(qū)采用。通過改變板式轉換結構落地剪力墻厚度與轉換板厚度,研究了參數改變對板式轉換結構動力特性及抗震性能的影響。結果表明,隨著落地剪力墻厚度的增加,轉換層下部結構與上部結構的等效側向剛度比逐漸增大,結構的自振周期、樓層位移及層間位移角減小,抗震性能提高。隨著轉換板厚度的增大,結構前幾階自振周期、樓層位移減�。辉谵D換板的下部,層間位移角變化較小,在轉換板的上部,層間位移角減小。本文的研究表明,選擇合理的參數可以使結構的抗震性能達到最優(yōu)。
[Abstract]:With the development of the construction industry and the demand of the building function, the high-rise building with the transition floor has been widely used in people's life. The most widely used transfer layer structure in China is the beam transfer layer, and the research on the beam transfer layer has been studied more deeply in the engineering field, and some research results have been written into the current code. The application of plate transfer layer in earthquake area is relatively few, and the research on plate transfer layer is not deep enough in engineering field. With the increasing demand for building function, the use of plate transfer layer will be more and more. The research on the plate transfer layer will also be more in-depth. In this paper, the theory and aseismic calculation method of plate type transfer structure are systematically studied in combination with the present situation of application and literature data of plate type transfer structure. In view of the seismic behavior of plate type transfer structure, a numerical model is established by using finite element analysis software ANSYS, and the dynamic characteristics, response spectrum and transient dynamics of the structure are analyzed. The dynamic performance and seismic response of plate type transfer structure are studied, and the difference of seismic performance between beam type transfer structure and plate type transfer structure is compared, and the natural vibration period and floor displacement are analyzed. The influence of interstory displacement angle and floor shear force. The results show that: for the frame shear wall structure with more misalignment between the upper and lower axes of the transfer layer, the whole seismic performance of the plate transfer layer is better than that of the beam transfer story, and the local seismic performance is slightly worse. When selecting the structure, many factors should be considered comprehensively. When the plate transfer structure arrangement is reasonable, it can be used in 7 degree area. By changing the thickness of the floor shear wall and the thickness of the transfer plate, the influence of the change of the parameters on the dynamic characteristics and seismic performance of the plate type transfer structure is studied. The results show that with the increase of the thickness of the shear wall, the equivalent lateral stiffness ratio of the substructure of the transfer layer to the superstructure increases gradually, the natural vibration period of the structure, the displacement angle between the floor and the floor decreases, and the seismic performance is improved. With the increase of the thickness of the transfer plate, the floor displacement decreases in the first few natural vibration periods of the structure, while in the lower part of the transfer plate, the change of the interstory displacement angle is small, and in the upper part of the transfer plate, the interstory displacement angle decreases. The research in this paper shows that the optimum seismic performance of the structure can be achieved by selecting reasonable parameters.
【學位授予單位】：遼寧工程技術大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TU973.16;TU973.31
本文編號：2312689
[Abstract]:With the development of the construction industry and the demand of the building function, the high-rise building with the transition floor has been widely used in people's life. The most widely used transfer layer structure in China is the beam transfer layer, and the research on the beam transfer layer has been studied more deeply in the engineering field, and some research results have been written into the current code. The application of plate transfer layer in earthquake area is relatively few, and the research on plate transfer layer is not deep enough in engineering field. With the increasing demand for building function, the use of plate transfer layer will be more and more. The research on the plate transfer layer will also be more in-depth. In this paper, the theory and aseismic calculation method of plate type transfer structure are systematically studied in combination with the present situation of application and literature data of plate type transfer structure. In view of the seismic behavior of plate type transfer structure, a numerical model is established by using finite element analysis software ANSYS, and the dynamic characteristics, response spectrum and transient dynamics of the structure are analyzed. The dynamic performance and seismic response of plate type transfer structure are studied, and the difference of seismic performance between beam type transfer structure and plate type transfer structure is compared, and the natural vibration period and floor displacement are analyzed. The influence of interstory displacement angle and floor shear force. The results show that: for the frame shear wall structure with more misalignment between the upper and lower axes of the transfer layer, the whole seismic performance of the plate transfer layer is better than that of the beam transfer story, and the local seismic performance is slightly worse. When selecting the structure, many factors should be considered comprehensively. When the plate transfer structure arrangement is reasonable, it can be used in 7 degree area. By changing the thickness of the floor shear wall and the thickness of the transfer plate, the influence of the change of the parameters on the dynamic characteristics and seismic performance of the plate type transfer structure is studied. The results show that with the increase of the thickness of the shear wall, the equivalent lateral stiffness ratio of the substructure of the transfer layer to the superstructure increases gradually, the natural vibration period of the structure, the displacement angle between the floor and the floor decreases, and the seismic performance is improved. With the increase of the thickness of the transfer plate, the floor displacement decreases in the first few natural vibration periods of the structure, while in the lower part of the transfer plate, the change of the interstory displacement angle is small, and in the upper part of the transfer plate, the interstory displacement angle decreases. The research in this paper shows that the optimum seismic performance of the structure can be achieved by selecting reasonable parameters.
【學位授予單位】：遼寧工程技術大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TU973.16;TU973.31
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