本文選題：基礎(chǔ)隔震結(jié)構(gòu)　切入點：強(qiáng)烈地震　出處：《西南交通大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：基礎(chǔ)隔震技術(shù)能夠顯著減少傳入上部結(jié)構(gòu)的地震能量,減小地震對上部結(jié)構(gòu)的破壞。但由于基礎(chǔ)隔震耗能裝置多為延性構(gòu)件,水平剛度小,因此在地震作用下水平側(cè)移很大,可能導(dǎo)致隔震結(jié)構(gòu)的基底與周邊隔震溝擋墻或其他構(gòu)造物發(fā)生碰撞。所以,研究結(jié)構(gòu)在地震作用下的碰撞反應(yīng),對保證地震下的結(jié)構(gòu)安全具有參考作用。由于日本處在地震多發(fā)帶,開展抗震設(shè)計理論研究的時間早于中國,因此日本的抗震設(shè)計理論體系相對完備,其抗震隔震設(shè)計有值得中國借鑒的地方。所以對比分析隔震結(jié)構(gòu)在兩國抗震設(shè)計規(guī)范規(guī)定的地震動作用下的結(jié)構(gòu)響應(yīng),找出二者的差異很有必要。本文以基礎(chǔ)隔震結(jié)構(gòu)為對象,開展了以下幾方面的研究:I.詳細(xì)的介紹現(xiàn)有的結(jié)構(gòu)碰撞研究方法以及常用的碰撞分析模型,比較各類分析方法的異同和優(yōu)缺點,介紹本文使用的有限元軟件。II.描述碰撞運(yùn)動方程的建立過程。結(jié)合工程實例建立了鉛芯橡膠和摩擦擺基礎(chǔ)隔震結(jié)構(gòu)這兩類隔震結(jié)構(gòu)的有限元模型,研究了強(qiáng)震下隔震層與周邊構(gòu)造物碰撞對結(jié)構(gòu)反應(yīng)的影響。通過定義碰撞影響指數(shù),重點進(jìn)行了結(jié)構(gòu)碰撞的參數(shù)分析,研究了地震方向變化、支座類型、建筑物高度對隔震建筑碰撞反應(yīng)的影響,得到了一些結(jié)論。III.結(jié)合工程實例建立了以鉛芯橡膠支座為隔震層的基礎(chǔ)隔震結(jié)構(gòu)有限元模型。選取2條實際觀測地震記錄以及3條人工地震波,基于中日抗震設(shè)計規(guī)范對所選地震動進(jìn)行調(diào)幅。通過對比分析隔震結(jié)構(gòu)在中國和日本抗震設(shè)計規(guī)范中震及大震作用下的隔震支座最大水平位移、層間位移角的最大值、最大層間剪力、頂層節(jié)點最大絕對加速度,以及中、日兩國抗震規(guī)范制定的相應(yīng)的限值,以期能夠為中國建筑抗震設(shè)計規(guī)范編制提供一定參考。
[Abstract]:Foundation isolation technology can significantly reduce the seismic energy transmitted to the superstructure and reduce the earthquake damage to the superstructure. However, because the energy dissipation devices of the foundation isolation are mostly ductile members and the horizontal stiffness is small, the horizontal lateral displacement is very large under the earthquake action. The base of the isolated structure may collide with the surrounding isolation ditch retaining wall or other structures. It is useful for ensuring the safety of structures under earthquake. Because Japan is in the earthquake-prone zone and the research time of seismic design theory is earlier than that of China, the seismic design theory system in Japan is relatively complete. Therefore, it is necessary to compare and analyze the structural responses of the isolated structures under the ground motion as stipulated in the seismic design code of the two countries, and find out the difference between the two. This paper takes the base-isolated structure as the object. The following studies are carried out: I. the existing structural collision research methods and the commonly used collision analysis models are introduced in detail, and the similarities, differences, advantages and disadvantages of various analytical methods are compared. In this paper, the finite element software, I. I., is used to describe the process of establishing the equation of motion of collision. Combined with engineering examples, the finite element models of two kinds of isolated structures, lead rubber and frictional pendulum foundation isolation structures, are established. The influence of the collision between the isolation layer and the surrounding structure on the structure response under strong earthquake is studied. By defining the impact index, the parameter analysis of the structural collision is carried out, and the direction change of the earthquake and the type of the bearing are studied. Impact of Building height on impact response of isolated buildings, Some conclusions. III. combined with engineering examples, the finite element model of foundation isolation structure with lead-rubber bearing as isolation layer is established. Two actual observational seismic records and three artificial seismic waves are selected. Based on the seismic design code of China and Japan, the amplitude modulation of the selected ground motion is carried out. The maximum horizontal displacement and the maximum displacement angle between floors of isolated structures under the action of Chinese and Japanese seismic design codes are analyzed. The maximum interstory shear force, the maximum absolute acceleration of the top joint, and the corresponding limit values of the seismic code of China and Japan can be used as reference for the compilation of the code for seismic design of Chinese buildings.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU352.12

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 何廣杰;趙一丁;辛亞洲;劉成清;倪向勇;;RC柱彎曲破壞骨架曲線簡化算法及試驗驗證[J];西南交通大學(xué)學(xué)報;2017年02期

2 劉成清;韋小丹;羅馨怡;王雯燕;倪向勇;;T型剪力墻骨架曲線計算方法及試驗驗證[J];鐵道科學(xué)與工程學(xué)報;2016年11期

3 劉成清;韋小丹;倪向勇;;短肢剪力墻抗震性能理論分析與數(shù)值模擬[J];西南交通大學(xué)學(xué)報;2016年04期

4 何斌;施衛(wèi)星;劉成清;;黏滯阻尼器在超高層結(jié)構(gòu)體系中的效率研究[J];力學(xué)季刊;2015年04期

5 劉陽;劉文光;何文福;楊巧榮;;長周期地震作用下考慮碰撞效應(yīng)的偏心隔震結(jié)構(gòu)損傷性能評價[J];振動工程學(xué)報;2015年06期

6 何斌;施衛(wèi)星;劉成清;;含TLCD超高層建筑風(fēng)振舒適度及其生命周期費(fèi)用分析[J];防災(zāi)減災(zāi)工程學(xué)報;2015年06期

7 吳迪;霍維剛;周福霖;;采用GFRP橡膠隔震技術(shù)的某砌體結(jié)構(gòu)動力響應(yīng)分析[J];廣州大學(xué)學(xué)報(自然科學(xué)版);2015年06期

8 劉成清;陳林雅;蘇啟旺;;彭山體育館抗連續(xù)倒塌性能研究[J];鋼結(jié)構(gòu);2015年11期

9 趙必大;劉成清;章圣冶;張建勝;;Y型圓鋼管相貫節(jié)點軸向剛度計算模型[J];西南交通大學(xué)學(xué)報;2015年05期

10 劉成清;倪向勇;施衛(wèi)星;;基于IDARC的RC剪力墻Park恢復(fù)力模型參數(shù)修正[J];建筑科學(xué)與工程學(xué)報;2015年04期

，

本文編號：1581853