箱形彎梁橋車橋耦合振動分析
[Abstract]:The rapid development of urbanization has promoted the development of urban traffic engineering, and the application of curved beam bridge is becoming more and more extensive; with the increase of load load and the increase of speed, as well as the light weight of the bridge and the universal application of the high-pier bridge, the dynamic response of the bridge becomes a research subject that can't be avoided. The research on the coupling vibration of the bridge axle of the urban curve has a certain application value. The theoretical analysis of the dynamic response of the bridge under the action of dynamic load of the vehicle is carried out. The vehicle-bridge coupling system is divided into the vehicle subsystem and the bridge subsystem, and the finite element model of the vehicle and the curved box girder bridge is established by using the ANSYS. The vehicle adopts 1/ 4 automobile model with 6-parameter 2-degree-of-freedom, and the bridge adopts three-dimensional solid unit to set up the finite element model. The effects of parameters such as prestress, radius of curvature, restraint condition and vehicle speed on the self-vibration and dynamic response of the bridge are analyzed. The results of numerical simulation show that the variation of various parameters has an effect on the power performance of the curved beam bridge, and the main conclusions are as follows: (1) The displacement, velocity and acceleration response of the pre-stress to the curved beam bridge are affected, and the modal frequency values of each stage are gradually reduced with the increase of the prestress; (2) The dynamic response of the curved beam bridge is violent with the increase of the radius, but when the radius exceeds 200m, the response starts to be stable; and (3) the curve of the dynamic response will continue to be smooth and stable as the vehicle speed increases.
【學(xué)位授予單位】:石家莊鐵道大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:U441.3
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 李小珍;張黎明;張潔;;公路橋梁與車輛耦合振動研究現(xiàn)狀與發(fā)展趨勢[J];工程力學(xué);2008年03期
2 王解軍,張偉,吳衛(wèi)祥;重型汽車荷載作用下簡支梁橋的動力反應(yīng)分析[J];中南公路工程;2005年02期
3 肖新標(biāo),沈火明;3種車橋耦合振動分析模型的比較研究[J];西南交通大學(xué)學(xué)報;2004年02期
4 李小珍,強(qiáng)士中;大跨度公鐵兩用斜拉橋車橋動力分析[J];振動與沖擊;2003年01期
5 李小珍,強(qiáng)士中;列車-橋梁耦合振動研究的現(xiàn)狀與發(fā)展趨勢[J];鐵道學(xué)報;2002年05期
6 李小珍,馬文彬,強(qiáng)士中;車橋系統(tǒng)耦合振動分析的數(shù)值解法[J];振動與沖擊;2002年03期
7 李小珍,強(qiáng)士中;京滬高速南京越江鋼斜拉橋車橋耦合振動分析[J];西南交通大學(xué)學(xué)報;1999年02期
8 楊岳民,潘家英,,程慶國;車橋耦合振動方程的分組迭代求解[J];中國鐵道科學(xué);1996年04期
9 沈銳利;高速鐵路簡支梁橋豎向振動響應(yīng)研究[J];中國鐵道科學(xué);1996年03期
10 楊岳民,潘家英,程慶國;大跨度鐵路橋梁車橋動力響應(yīng)理論分析及試驗研究[J];中國鐵道科學(xué);1995年04期
相關(guān)博士學(xué)位論文 前1條
1 張格明;中高速條件下車紅橋動力分析模型與軌道不平順影響[D];鐵道部科學(xué)研究院;2001年
相關(guān)碩士學(xué)位論文 前7條
1 曾德亮;車橋耦合系統(tǒng)垂向隨機(jī)振動分析[D];西南交通大學(xué);2012年
2 薛凌翔;考慮徐變影響的混凝土公路橋梁車—橋耦合振動研究[D];北京交通大學(xué);2008年
3 張黎明;大跨度連續(xù)剛構(gòu)橋車橋耦合振動研究[D];西南交通大學(xué);2007年
4 張鈞博;公路橋梁的車橋耦合振動研究[D];西南交通大學(xué);2007年
5 張潔;公路車輛與橋梁耦合振動分析研究[D];西南交通大學(xué);2007年
6 袁明;高墩大跨連續(xù)剛構(gòu)橋的車橋系統(tǒng)耦合振動分析[D];長沙理工大學(xué);2005年
7 唐意;剛架拱橋車輛振動可視化仿真研究[D];福州大學(xué);2003年
本文編號:2422381
本文鏈接:http://www.sikaile.net/kejilunwen/jiaotonggongchenglunwen/2422381.html