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1、蘭州交通大學(xué)博文學(xué)院畢業(yè)設(shè)計(jì)(論文)摘要在電氣化鐵路中,要提高接觸懸掛的穩(wěn)定性,改善受流質(zhì)量,首先應(yīng)確保支持裝置的穩(wěn)定性及受力性能良好,而硬橫跨正好具備這樣的優(yōu)點(diǎn)。隨著高速電氣化的發(fā)展,既有線的大面積提速,原有的軟橫跨已不能滿足提速后的質(zhì)量要求,性能好的硬橫跨取而代之已是必然。所以對(duì)硬橫跨的研究是十分必要的。本文在接觸網(wǎng)基本原理的基礎(chǔ)上,深入地分析了硬橫跨的結(jié)構(gòu)特征和硬橫跨的受力性能;系統(tǒng)地論述了硬橫跨的施工技術(shù)。設(shè)計(jì)中結(jié)合實(shí)際站場(chǎng)進(jìn)行分析,提高了文章的實(shí)用性,做到了理論和實(shí)踐的結(jié)合和統(tǒng)一。論文共分五章,第一章介紹了硬橫跨的基本形式,并根據(jù)實(shí)際站場(chǎng)設(shè)立的硬橫跨作了進(jìn)一
2、步的闡述。第二章敘述了硬橫跨的類型結(jié)構(gòu)、硬橫跨的基礎(chǔ)選用及施工要求。第三章結(jié)合實(shí)際站場(chǎng),對(duì)硬橫跨的受力進(jìn)行分析計(jì)算,完成了硬橫跨的力學(xué)性能分析。第四章概述了與生產(chǎn)實(shí)際緊密相關(guān)的硬橫跨的施工作業(yè)流程。第五章探討了有線路硬橫跨的改造、安裝技術(shù)。關(guān)鍵詞:接觸網(wǎng)硬橫跨軟橫跨安裝技術(shù)47蘭州交通大學(xué)博文學(xué)院畢業(yè)設(shè)計(jì)(論文)AbstractForimprovingthestabilityofcontacthangingandcorrespondingcurrent-carryingqualityinelectricrailwayfield,toguaranteethestabil
3、ityandcapabilitytoforceofsupportingequipmentscomesfirst.Portalstructurejusthassuchadvantages.Oldsoftcrosscannotmeetthenewqualityrequirementafterlarge-scaleimprovingspeedonexistingrailwaylinesashighspeedelectrificationdeveloping.Soitisreplacedbyportalstructureisinevitableandportalstructu
4、reresearchbecomesmoreandmorenecessary.Thesisisdependentoncatenarysystemsfundamental,integratedwiththeoryandpractice,andthoroughlyanalyzesstructurefeaturesandcapabilitytoforceofportalstructure.Authorhascommentedtheconstructiontechnologysystematicallywithpracticalexperienceforpracticabili
5、tyimproving.Thesisconsistsoffivechapters.Thefirstchapterisintroductionofbasicformofportalstructure,withfurtherexpatiationofpracticalconstructionofportalstructure;youwillgetinformationofdifferentstructuretypes,groundworkselectionandconstructionofportalstructureinthesecondchapter;thethird
6、chaptertakesrealrailwaystationasbackground,accuratelycalculatesthecapabilitytoforceofportalstructure,completestheanalysisofmechanicsofportalstructure;thefifthchapterofferyouthewholeconstructionprocessofportalstructureandyoucanbrowsetheinformationofalterationandinstallationtechnologyofpo
7、rtalstructureonexistingrailwaylineinthelastchapter.Keywords:catenarysystemsportalstructuresoftcrossinstallationtechnology47蘭州交通大學(xué)博文學(xué)院畢業(yè)設(shè)計(jì)(論文)目錄緒論11.硬橫跨的形式31.1硬橫跨的基本形式31.2新型斜拉式硬橫跨31.2.1斜拉式硬橫跨的形式32.硬橫跨結(jié)構(gòu)與基礎(chǔ)選用62.1選用說(shuō)明62.1.1硬橫跨規(guī)格型號(hào)符號(hào)說(shuō)明62.2基礎(chǔ)選用72.2.1角鋼硬橫跨選擇72.2.2鋼管橫梁選用92.2.3硬橫跨吊柱選擇9