無站臺(tái)柱雨棚結(jié)構(gòu)的敏感性分析與安全性評(píng)價(jià)
[Abstract]:The structure of rain shed without station column is arranged between railway harness or outside of station yard. It has excellent permeability and has been widely used in the construction of railway station rain shed. Taking the structure of rain shed without platform column in north station of Shenyang as the research object, the research is carried out around its safe service and state evaluation by combining the empirical research and finite element analysis with the method of the combination of the empirical study and the finite element analysis. Based on the qualitative analysis of the unidirectional cable-stayed cable beam structure system, the parameters (stiffness of the main truss beam, density of the main truss beam), which may change during the service period of the structure, are determined. The sensitivity analysis of cable performance degradation parameters and inhomogeneous settlement of support column was carried out, and the sensitivity of deformation, stress and self-vibration frequency caused by the change of parameters was quantitatively evaluated. On this basis, based on the idea of objective weight coefficient, the objective and quantitative evaluation of the structural safety of rain shed without platform column is carried out by applying the two-stage model modification method. The results show that the deformation index is the most sensitive and the dynamic index is less sensitive to the structure of rain shed without platform column in the north station of Shenyang. The proposed two-stage model correction method can not only apply all the parameters (deterministic parameters and uncertain parameters) to model modification, but also can be objective by normalizing and normalizing the sensitivity coefficient. The quantitative determination of the contribution degree of each index shows that the accuracy of the modified results is high. The research ideas and methods presented in this paper are suitable for popularization and application in similar structures.
【學(xué)位授予單位】:遼寧工程技術(shù)大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:TU311.2
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 石永久;高陽;王元清;施剛;盧凱;;溫度和支座沉降對(duì)將臺(tái)花園拱殼雜交鋼結(jié)構(gòu)承載性能的影響分析[J];建筑科學(xué);2012年11期
2 郭文兵;袁凌輝;鄭彬;;地表傾斜變形對(duì)高壓線鐵塔的影響研究[J];河南理工大學(xué)學(xué)報(bào)(自然科學(xué)版);2012年03期
3 殷志祥;劉旭;;基于分災(zāi)模式的加油站罩篷網(wǎng)架結(jié)構(gòu)抗極大偶然荷載設(shè)計(jì)[J];建筑結(jié)構(gòu);2011年S1期
4 申永江;徐志勝;張華和;嚴(yán)克伍;;高速鐵路軟土路基沉降的因素敏感性分析[J];交通科學(xué)與工程;2011年01期
5 蔡建國;王蜂嵐;韓運(yùn)龍;馮健;張晉;;大跨空間結(jié)構(gòu)重要構(gòu)件評(píng)估實(shí)用方法[J];湖南大學(xué)學(xué)報(bào)(自然科學(xué)版);2011年03期
6 李兆霞;王瀅;吳佰建;王春苗;陳志文;;橋梁結(jié)構(gòu)劣化與損傷過程的多尺度分析方法及其應(yīng)用[J];固體力學(xué)學(xué)報(bào);2010年06期
7 金曉飛;范峰;沈世釗;;巨型射電望遠(yuǎn)鏡(FAST)反射面支承結(jié)構(gòu)參數(shù)敏感性分析[J];土木工程學(xué)報(bào);2010年02期
8 高劍;;無站臺(tái)柱雨棚特性與設(shè)計(jì)[J];鐵道工程學(xué)報(bào);2008年12期
9 潘國華;;無站臺(tái)柱雨棚設(shè)計(jì)若干問題的探討[J];鐵道標(biāo)準(zhǔn)設(shè)計(jì);2008年06期
10 孟凡芹;奚麗波;林彬;王冬;;基于模糊綜合評(píng)價(jià)方法的機(jī)場(chǎng)油庫安全度評(píng)估研究[J];數(shù)學(xué)的實(shí)踐與認(rèn)識(shí);2007年20期
相關(guān)博士學(xué)位論文 前1條
1 韓東穎;基于損傷識(shí)別和模型修正的井架鋼結(jié)構(gòu)評(píng)定方法及應(yīng)用[D];燕山大學(xué);2008年
相關(guān)碩士學(xué)位論文 前4條
1 王海源;預(yù)應(yīng)力混凝土連續(xù)剛構(gòu)服役期狀態(tài)模糊評(píng)估[D];山東大學(xué);2012年
2 馮成帥;大跨鋼結(jié)構(gòu)安全評(píng)估理論及應(yīng)用研究[D];西安建筑科技大學(xué);2009年
3 武鵬;缺陷對(duì)管桁架結(jié)構(gòu)工況影響分析[D];長安大學(xué);2008年
4 高志輝;有限元邊坡穩(wěn)定參數(shù)敏感性分析[D];北京工業(yè)大學(xué);2007年
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