本文選題：車橋耦合 + 高架車站��； 參考：《北京交通大學》2014年博士論文

【摘要】：摘要：隨著國民經(jīng)濟日益增長的需求,鐵路建設得到了快速發(fā)展,其中車站的建設規(guī)模越來越大,高架車站這種立體化的結(jié)構(gòu)形式也得到越來越多的采用,在交通的高效組織和城市建設中扮演重要的角色。與此同時,這種新型的車站結(jié)構(gòu)也會帶來一些新的問題。列車通過高架車站以及在車站內(nèi)頻繁地制動或起動時,會引起列車和高架車站結(jié)構(gòu)之間的動力相互作用,這種動力作用對結(jié)構(gòu)的安全性和乘客及站內(nèi)工作人員的舒適性產(chǎn)生影響。 本文在車橋耦合振動理論的基礎上,研究了高速鐵路高架車站結(jié)構(gòu)在車輛激勵下的振動響應這一振動工程研究領域的前沿課題。通過建立列車一高架車站耦合系統(tǒng)三維動力分析模型,實現(xiàn)列車高速通過車站和在車站內(nèi)制動或起動時的全過程動力仿真分析,對列車荷載在高架車站內(nèi)傳遞規(guī)律進行研究,并對高架車站結(jié)構(gòu)在列車荷載作用下的振動安全性和使用舒適度以及列車高速通過車站結(jié)構(gòu)時的運行安全性和平穩(wěn)性進行振動評價。主要的研究內(nèi)容和創(chuàng)新點包括： (1)對高速鐵路及高架車站的發(fā)展進行了綜述,總結(jié)了高架車站的結(jié)構(gòu)形式及特點、振動問題及研究內(nèi)容。重點對車橋耦合振動、高架車站動力分析和列車縱向動力作用研究現(xiàn)狀進行了總結(jié),指出目前高架車站振動和列車縱向作用研究中的不足之處。 (2)在以前列車縱向分析的傳統(tǒng)單質(zhì)點分析模型和縱向多質(zhì)點模型基礎上,建立高速動車組的縱向動力分析模型。基于此高速動車組的縱向分析模型,通過我國CRH2型200km/h動車組按7級常用制動在線路上制動停車的算例,計算得到作用于軌面的列車制動力時程。同時,研究了列車制動時對橋梁的縱向動力作用,通過建立考慮梁軌縱向相互作用的車輛—軌道—橋梁系統(tǒng)縱向動力分析模型,以典型國產(chǎn)高速列車制動時通過鋪設無縫鋼軌的十跨高墩簡支梁橋作為算例,求解高速列車制動時車輛—軌道—橋梁系統(tǒng)的縱向動力響應。并與我國橋涵設計規(guī)范中關于列車制動附加力對橋梁結(jié)構(gòu)靜力作用的計算結(jié)果進行比較分析。 (3)建立了考慮列車縱向作用的高速列車—高架車站系統(tǒng)動力分析模型,其中車輛子系統(tǒng)以多剛體動力學建立三維動力分析模型,推導考慮縱向自由度的車輛運動方程。車站結(jié)構(gòu)子系統(tǒng)通過有限元建模,兩者通過縱向、垂向和橫向輪軌關系假定聯(lián)系起來,由此建立的系統(tǒng)方程通過全過程迭代法求解。其中車輛—結(jié)構(gòu)耦合關系是系統(tǒng)動力分析的關鍵,主要介紹了輪軌垂向和縱向密貼假定,橫向的簡化的Kaller線性蠕滑理論或蛇形波假定。而數(shù)值求解方法是研究的難點,主要介紹了全過程迭代法的計算流程及其與以往計算方法的區(qū)別和優(yōu)勢。 (4)對列車在高架車站內(nèi)制動進站和起動出站時車站結(jié)構(gòu)的關鍵部位進行動力測試,分析列車的制動和起動對車站結(jié)構(gòu)的振動影響,同時也為高架車站的動力仿真計算分析提供試驗驗證。并且進一步對車站結(jié)構(gòu)的使用舒適性和安全性進行評價,并研究判別車站使用舒適性和安全性的初步標準。 (5)以第3章介紹的高速列車—高架車站動力分析基本理論為基礎,以南京南站為算例,計算分析南京南站在不同列車不同的運行狀態(tài)下的動力響應特征,并結(jié)合第四章南京南站的動力測試,對比制動工況下的計算結(jié)果和實測結(jié)果。最后對列車和高架車站結(jié)構(gòu)的振動舒適性進行評價。
[Abstract]:Abstract: along with the growing demand of the national economy, the railway construction has been developed rapidly. The construction scale of the station is becoming larger and larger. The three-dimensional structure form of the elevated station has also been adopted more and more, playing a important role in the efficient organization of traffic and the construction of the city. At the same time, this new type of station junction is made. It also brings some new problems. Trains pass through elevated stations and frequently brake or start within the station, causing the dynamic interaction between trains and the structure of the elevated station, which affects the safety of the structure and the comfort of the passengers and the staff in the station.
On the basis of the theory of vehicle bridge coupling vibration, this paper studies the frontiers of the vibration response of high speed railway elevated station structure under the excitation of vehicles. Through the establishment of a three-dimensional dynamic analysis model of the coupling system of the train one elevated station, the high speed of the train can be brake or start at the station and in the station. The dynamic simulation analysis of the whole process is carried out to study the transmission law of the train load in the elevated station, and the vibration safety and comfort of the elevated station structure under the load of the train and the safety and stability of the train running through the station structure are evaluated. The main research content and the innovative point package are carried out. Including:
(1) the development of high speed railway and viaduct station is reviewed. The structure and characteristics of the elevated station, the vibration problem and the research content are summarized. The research status of the coupling vibration of the vehicle bridge, the dynamic analysis of the elevated station and the longitudinal dynamic action of the train are summarized, which refers to the study of the vibration of the elevated station and the longitudinal action of the train at present. Inadequacies.
(2) on the basis of the traditional single point analysis model and the longitudinal multi particle model, the longitudinal dynamic analysis model of the high speed EMU is established. Based on the longitudinal analysis model of the high speed EMU, the calculation is used to calculate the braking of the CRH2 type 200km/h EMU based on the braking of the common brake on the line. At the same time, the longitudinal dynamic effect of the train braking on the bridge is studied, and the longitudinal dynamic analysis model of the vehicle track bridge system is set up in consideration of the longitudinal interaction of the beam and rail. The ten span high pier simple supported beam bridge is solved by the typical domestic high-speed train, which is solved as an example. The longitudinal dynamic response of the vehicle track bridge system during the braking of the high-speed train is compared with the results of the calculation of the static action of the train braking additional force on the bridge structure in the design specification of the bridge and culvert in our country.
(3) the dynamic analysis model of high speed train and viaduct system is established considering the longitudinal action of the train, in which the vehicle subsystem builds a three-dimensional dynamic analysis model with multi rigid body dynamics and derives the vehicle motion equation considering the longitudinal freedom. The station structure subsystem is modeled by the finite element method, both through the vertical, vertical and lateral wheel rail passes. The system equation established by the assumption is solved by the whole process iteration method. The vehicle structure coupling relationship is the key to the dynamic analysis of the system. The vertical and vertical postulate of the wheel and rail, the transverse and simplified Kaller linear creep theory or the snake like assumption are mainly introduced. The calculation process of the whole process iteration method and its differences and advantages from previous calculation methods are introduced.
(4) test the dynamic test on the key parts of the station structure when the train stops in the elevated station and start out the station, analyzes the influence of the train braking and starting on the vibration of the station structure, and also provides experimental verification for the dynamic simulation and analysis of the elevated station. And the use of the station structure is more comfortable and safe. The preliminary criteria for judging the comfort and safety of stations are evaluated.
(5) based on the basic theory of the dynamic analysis of the high speed train and viaduct introduced in the third chapter, taking the NanJing South Railway Station as an example, the dynamic response characteristics of the NanJing South Railway Station are calculated and analyzed in different running states of different trains, and the calculation results and the measured results under the specific braking condition are analyzed with the dynamic test of fourth chapters. The vibration comfort of the train and elevated station structure is evaluated.
【學位授予單位】：北京交通大學
【學位級別】：博士
【學位授予年份】：2014
【分類號】：TU311.3;TU248.1

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本文編號：1987859