三維隔振裝置及其在博物館結構中的應用研究
發(fā)布時間：2018-07-29 10:06
【摘要】：近年來,地鐵運輸系統(tǒng)迅速發(fā)展,由于城市地鐵均貫穿市中心,在負擔城市運輸任務的同時,也對沿線周圍的住宅樓、辦公樓、博物館、古建筑產(chǎn)生影響。目前,隔震技術的發(fā)展已比較成熟,成為一種有效的減震手段,但隔震設計主要針對水平地震作用,對軌道交通引起的以豎向為主的結構振動并未起到有效的隔振作用。因此,兼具水平隔震和豎向隔振的三維隔振技術成為工程界探索和關注的焦點。本文在對國內(nèi)外相關研究內(nèi)容進行調(diào)研的基礎上,以既能隔離水平地震作用,又能減輕地鐵運行誘發(fā)沿線建筑的豎向振動為目的,采用橡膠支座與碟形彈簧組串聯(lián)的方式,構造了一種三維隔振裝置,通過理論研究、數(shù)值模擬、應用實踐對其可行性、實用性及有效性進行了深入研究。論文主要研究工作和成果如下:(1)從結構動力學基本原理出發(fā),分析了隔振裝置的豎向隔振原理。通過合理、恰當?shù)臉嬙齑胧┦瓜鹉z支座與碟形彈簧組的剛度解耦,保證了三維隔振裝置的有效性、安全性、穩(wěn)定性,解決了隔振體系的搖擺問題,同時,提出了三維隔振的設計方法。(2)利用ABAQUS分別建立了橡膠支座與碟形彈簧組的有限元模型,按照相應規(guī)范進行加載,獲得荷載—位移曲線。通過計算得到三維隔振裝置的水平剛度與豎向剛度,為其在工程中應用提供了相關參數(shù)。(3)基于四川某博物館實際工程,采用結構通用有限元分析軟件SAP2000建立了原結構與隔振結構兩種三維模型。選取了 7條地震波輸入兩種結構模型,從結構周期、基底剪力、層間側移和水平加速度峰值四個方面進行了分析。結果表明,三維隔振裝置具有良好的水平向隔震效果。(4)通過現(xiàn)場實測得到了在地鐵運行時四川某博物館室外地坪的豎向加速度時程,選取其中3條作為激勵輸入結構模型,分析了隔振和非隔振結構各樓層的豎向加速度響應,利用Matlab編程計算得到了各樓層的Z振級。結果表明,隔振后結構各樓層的豎向加速度和Z振級明顯減小。(5)對于本文分析的四川某博物館結構模型,三維隔振裝置既減小了水平向地震作用下的結構響應,又降低了地鐵運行時結構各樓層的豎向加速度響應,隔震減振效果明顯。
[Abstract]:In recent years, the subway transportation system has developed rapidly. As the city subway runs through the city center, it also has an impact on the residential buildings, office buildings, museums and ancient buildings around the city. At present, the development of isolation technology has been more mature, and has become an effective means of seismic absorption, but the isolation design is mainly aimed at horizontal earthquake, and it does not play an effective role in isolating the vertical structural vibration caused by rail transit. Therefore, the 3D vibration isolation technology with both horizontal and vertical isolation has become the focus of exploration and attention in engineering field. In this paper, based on the investigation of the related research contents at home and abroad, in order to isolate the horizontal earthquake action and reduce the vertical vibration of the buildings along the line caused by the subway operation, the rubber bearing and the disc spring group are adopted in series. A three dimensional vibration isolator is constructed, and its feasibility, practicability and effectiveness are studied through theoretical research, numerical simulation and practical application. The main research work and results are as follows: (1) the vertical vibration isolation principle of vibration isolator is analyzed from the basic principle of structural dynamics. Through reasonable and appropriate construction measures, the stiffness of rubber bearing and disc spring group is decoupled, which ensures the effectiveness, safety and stability of the three-dimensional vibration isolator, and solves the swing problem of the vibration isolation system, at the same time, The design method of three dimensional vibration isolation is put forward. (2) the finite element model of rubber bearing and disc spring group is established by using ABAQUS, and the load-displacement curve is obtained by loading according to the corresponding specifications. The horizontal and vertical stiffness of the three-dimensional vibration isolator is obtained by calculation, which provides the relevant parameters for its application in the engineering. (3) based on the actual project of a museum in Sichuan, Two three dimensional models of the original structure and the vibration isolation structure are established by using the general finite element analysis software SAP2000. Two structural models of 7 seismic wave inputs are selected and analyzed from four aspects: structural period, base shear force, interlayer lateral shift and peak horizontal acceleration. The results show that the three-dimensional vibration isolator has a good horizontal isolation effect. (4) the vertical acceleration time history of the outdoor floor of a museum in Sichuan Province is obtained by field measurement, and three of them are selected as the excitation input structure model. The vertical acceleration response of each floor of isolation and non-isolation structures is analyzed and the Z vibration level of each floor is obtained by Matlab programming. The results show that the vertical acceleration and Z level of each floor of the structure are obviously reduced after vibration isolation. (5) for the structural model of a museum in Sichuan Province, the three-dimensional vibration isolation device not only reduces the structural response under horizontal earthquake. The vertical acceleration response of each floor of subway structure is reduced, and the vibration isolation effect is obvious.
【學位授予單位】：北京交通大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TU352.12
本文編號：2152334
[Abstract]:In recent years, the subway transportation system has developed rapidly. As the city subway runs through the city center, it also has an impact on the residential buildings, office buildings, museums and ancient buildings around the city. At present, the development of isolation technology has been more mature, and has become an effective means of seismic absorption, but the isolation design is mainly aimed at horizontal earthquake, and it does not play an effective role in isolating the vertical structural vibration caused by rail transit. Therefore, the 3D vibration isolation technology with both horizontal and vertical isolation has become the focus of exploration and attention in engineering field. In this paper, based on the investigation of the related research contents at home and abroad, in order to isolate the horizontal earthquake action and reduce the vertical vibration of the buildings along the line caused by the subway operation, the rubber bearing and the disc spring group are adopted in series. A three dimensional vibration isolator is constructed, and its feasibility, practicability and effectiveness are studied through theoretical research, numerical simulation and practical application. The main research work and results are as follows: (1) the vertical vibration isolation principle of vibration isolator is analyzed from the basic principle of structural dynamics. Through reasonable and appropriate construction measures, the stiffness of rubber bearing and disc spring group is decoupled, which ensures the effectiveness, safety and stability of the three-dimensional vibration isolator, and solves the swing problem of the vibration isolation system, at the same time, The design method of three dimensional vibration isolation is put forward. (2) the finite element model of rubber bearing and disc spring group is established by using ABAQUS, and the load-displacement curve is obtained by loading according to the corresponding specifications. The horizontal and vertical stiffness of the three-dimensional vibration isolator is obtained by calculation, which provides the relevant parameters for its application in the engineering. (3) based on the actual project of a museum in Sichuan, Two three dimensional models of the original structure and the vibration isolation structure are established by using the general finite element analysis software SAP2000. Two structural models of 7 seismic wave inputs are selected and analyzed from four aspects: structural period, base shear force, interlayer lateral shift and peak horizontal acceleration. The results show that the three-dimensional vibration isolator has a good horizontal isolation effect. (4) the vertical acceleration time history of the outdoor floor of a museum in Sichuan Province is obtained by field measurement, and three of them are selected as the excitation input structure model. The vertical acceleration response of each floor of isolation and non-isolation structures is analyzed and the Z vibration level of each floor is obtained by Matlab programming. The results show that the vertical acceleration and Z level of each floor of the structure are obviously reduced after vibration isolation. (5) for the structural model of a museum in Sichuan Province, the three-dimensional vibration isolation device not only reduces the structural response under horizontal earthquake. The vertical acceleration response of each floor of subway structure is reduced, and the vibration isolation effect is obvious.
【學位授予單位】：北京交通大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TU352.12
【參考文獻】
相關期刊論文 前10條
1 孫新陽;楊維國;王萌;王亞;謝橋漾;安鵬;;剪切變形下橡膠支座壓縮剛度比分析研究[J];工程力學;2017年01期
2 葉飛;張亞旭;左晴;張志強;鄧運生;劉郁;金云飛;;武漢大學萬林藝術博物館結構設計[J];建筑結構;2016年07期
3 孫可;張巍;徐炎達;周立;周發(fā);;緊鄰地鐵車站地下空間樓層振動效應測試評價[J];地下空間與工程學報;2016年01期
4 袁騰文;;公路建設對沿線文物的影響評估[J];山東交通科技;2015年06期
5 鐘才敏;傅晉申;汪凱;吉欣;;地鐵運行區(qū)域某建筑物施工前后樓地面振動實測與分析[J];防災減災工程學報;2015年06期
6 張U_樂;劉林芽;李紀陽;;地鐵運行引起宿舍樓環(huán)境振動預測及隔振措施研究[J];防災減災工程學報;2015年06期
7 吳迪;霍維剛;周福霖;;采用GFRP橡膠隔震技術的某砌體結構動力響應分析[J];廣州大學學報(自然科學版);2015年06期
8 齊國紅;方偉;劉楓;王楊;;珠海市博物館中央大廳結構設計[J];建筑鋼結構進展;2015年03期
9 王毅;徐道臨;周加喜;;滾球型準零剛度隔振器的特性分析[J];振動與沖擊;2015年04期
10 凌育洪;吳景壯;馬宏偉;;地鐵引起的振動對框架結構的影響及隔振研究-以某教學樓為例[J];振動與沖擊;2015年04期
相關博士學位論文 前1條
1 王田友;地鐵運行所致環(huán)境振動與建筑物隔振方法研究[D];同濟大學;2008年
相關碩士學位論文 前1條
1 蔡蔭;碟簧豎向隔震支座的試驗研究[D];廣州大學;2012年
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