本文選題：波形鋼腹板 + 曲線梁橋　； 參考：《蘭州交通大學(xué)》2015年碩士論文

【摘要】：波形鋼腹板箱形梁橋是一種以波形鋼板作為腹板的一種新型橋梁,相對于傳統(tǒng)的混凝土箱形梁橋,具有自重輕,耐久性好,施工方便等優(yōu)點(diǎn),目前,在國內(nèi)外引起了高度重視。曲線梁橋在城市立交以及山區(qū)公路等領(lǐng)域有著廣泛的應(yīng)用,因?yàn)椴ㄐ武摳拱遄陨淼膬?yōu)點(diǎn),將其應(yīng)用于曲線箱梁橋中,將會有很好的經(jīng)濟(jì)效應(yīng)。本文重點(diǎn)圍繞波形鋼腹板曲線梁橋,進(jìn)行了其相關(guān)力學(xué)性能的研究。具體完成了以下幾個方面的工作:1、在查閱大量文獻(xiàn)的基礎(chǔ)上,總結(jié)了波紋鋼腹板箱梁的受力特點(diǎn),主要包括其軸向性能、彎曲性能、剪切以及扭轉(zhuǎn)的力學(xué)性能,同時分析了曲線梁橋的受力特點(diǎn)。2、結(jié)合波紋鋼腹板現(xiàn)有的幾何參數(shù),對其在曲線梁橋中的布置,提出了要考慮內(nèi)折角和外折角的區(qū)別,并分析了內(nèi)外折角和曲線半徑的關(guān)系。并對波紋鋼腹板曲線梁橋中單箱單室和單箱雙室的截面布置形式進(jìn)行了分析。3、結(jié)合波紋鋼腹板箱梁的特點(diǎn),在考慮豎向撓曲,腹板剪切,扭轉(zhuǎn)和外荷載情形下,推導(dǎo)了它們共同作用時梁體的總勢能,導(dǎo)出了波紋鋼腹板曲線梁橋的彎扭耦合表達(dá)式,并提出了波紋鋼腹板簡支曲線梁橋的簡化計算方法,同時對兩跨連續(xù)波紋鋼腹板曲線梁橋的抗傾覆性能進(jìn)行了研究,可為以后相關(guān)設(shè)計提供參考。4、通過有限元數(shù)值模擬,分析了不同波紋腹板厚度,不同波高對波紋鋼腹板曲線梁橋的豎向撓曲,縱向翹曲和關(guān)鍵截面應(yīng)力的影響。并分析了端支座和中支座布置的不同,對波形鋼腹板曲線梁橋撓度和應(yīng)力以及支座反力的影響。同時分析了波紋鋼腹板曲線梁橋和混凝土腹板曲線梁橋在撓度和翹曲方面的差異。
[Abstract]:Corrugated steel web box girder bridge is a new type of bridge with corrugated steel plate as web plate. Compared with the traditional concrete box girder bridge, it has the advantages of light weight, good durability, convenient construction and so on. At present, it has attracted great attention at home and abroad. Curved girder bridges are widely used in urban interchanges and mountain highways. Because of the advantages of corrugated steel webs, the application of curved girder bridges in curved box girder bridges will have a good economic effect. In this paper, the related mechanical properties of corrugated steel web curved girder bridge are studied. Having done the following work: 1, on the basis of consulting a large number of documents, the mechanical characteristics of corrugated steel web box girders are summarized, including their axial properties, bending properties, shear and torsional mechanical properties. At the same time, the stress characteristics of curved girder bridges are analyzed. Combining with the existing geometric parameters of corrugated steel webs, the difference between internal and external bending angles is proposed for the arrangement of corrugated steel webs in curved girder bridges, and the relationship between internal and external bending angles and curve radius is analyzed. The section layout of single box single chamber and single box double chamber in corrugated steel web curved girder bridge is analyzed. Combined with the characteristics of corrugated steel web box girder, the vertical deflection, web shear, torsion and external load are considered. In this paper, the total potential energy of beam body under the interaction of them is derived, the coupled expression of bending and torsion of corrugated steel web curved girder bridge is derived, and the simplified calculation method of corrugated steel web simply supported curved beam bridge is presented. At the same time, the anti-overturning performance of two-span continuous corrugated steel web curved girder bridge is studied, which can provide reference for related design in the future. Through finite element numerical simulation, different corrugated web thickness is analyzed. The influence of different wave heights on the vertical deflection, longitudinal warping and key section stress of corrugated steel web curved girder bridge. The effect of the arrangement of end support and middle support on deflection, stress and support reaction force of corrugated steel web curved girder bridge is analyzed. The deflection and warpage of corrugated steel web curved girder bridge and concrete web curved girder bridge are analyzed.
【學(xué)位授予單位】：蘭州交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U448.213

【共引文獻(xiàn)】

相關(guān)期刊論文 前3條

1 張哲;李國強(qiáng);孫飛飛;周學(xué)軍;;波紋腹板H形鋼吊車梁局部承壓承載力[J];建筑鋼結(jié)構(gòu)進(jìn)展;2013年06期

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相關(guān)博士學(xué)位論文 前1條

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相關(guān)碩士學(xué)位論文 前10條

1 劉蕾;高震區(qū)波形鋼腹板PC連續(xù)剛構(gòu)橋地震響應(yīng)分析[D];西南交通大學(xué);2013年

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6 孟麗麗;波紋腹板H型鋼吊車梁受力性能研究[D];河北工程大學(xué);2013年

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本文編號：1936461