先张法预应力混凝土简支空心板梁结构计算及施工图设计大学论文.doc

先张法预应力混凝土简支空心板梁结构计算及施工图设计摘要本设计是马葛线小桥结构计算及施工图设计，根据设计任务书的要求和桥梁设计规范的规定。上部结构采用形式为1×10m先张法预应力混凝土简支空心板梁。本设计，首先对主桥进行总体结构设计，然后对上部结构进行内力，配筋计算及验算，最后对下部结构进行计算及验算。本设计，按照设计任务的要求，有一个比较详细的设计与计算过程，得出的结论准确，绘制了施工图，符合设计任务书的要求。关键词：先张法；空心板梁；重力式扩大基础；推荐方案；施工图MageXianBridgestructurecomputationandtheconstructiondrawingdesignABSTRACTThisdesignisMagelinebridgestructurecomputationandtheconstructiondrawingdesign，Accordingtotheprovisionsoftherequirementsofthemissiondesignandbridgedesignspecifications.Theupperstructuretakestheformof1x10mpretensionedsystemconsimplysupportedhollowslabbeam.Thisdesign，firstly，theoverallstructuredesignofthemainbridge，andthenforceoftheupperstructure，thereinforcementcalculationandchecking，finallycarriesonthecomputationandcheckingonthelowerpartofthestructure.Thisdesign，accordingtothedesignrequirementsofthetask，thereisadetailedprocessofdesignandcalculation，theconclusionisaccurate，drawingconstructiondrawing，complywiththedesignrequirementsofthetask.Keywords：pretensionedsystem；hollowbeam；gravityexpansionbased；schemeisrecommended；constructiondrawing；目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc420837222"1基本资料PAGEREF_Toc420837222\h1HYPERLINK\l"_Toc420837223"1.1主要技术指标PAGEREF_Toc420837223\h1HYPERLINK\l"_Toc420837224"1.2材料规格PAGEREF_Toc420837224\h1HYPERLINK\l"_Toc420837225"2毛截面几何特性计算PAGEREF_Toc420837225\h2HYPERLINK\l"_Toc420837226"2.1截面几何尺寸图PAGEREF_Toc420837226\h2HYPERLINK\l"_Toc420837227"2.2毛截面几何特性计算PAGEREF_Toc420837227\h2HYPERLINK\l"_Toc420837228"3内力计算及组合PAGEREF_Toc420837228\h4HYPERLINK\l"_Toc420837229"3.1永久作用效应计算PAGEREF_Toc420837229\h4HYPERLINK\l"_Toc420837230"3.1.1空心板自重g1PAGEREF_Toc420837230\h4HYPERLINK\l"_Toc420837231"3.1.2桥面系自重g2PAGEREF_Toc420837231\h4HYPERLINK\l"_Toc420837232"3.2可变作用效应计算PAGEREF_Toc420837232\h4HYPERLINK\l"_Toc420837233"3.2.1汽车荷载横向分布系数计算PAGEREF_Toc420837233\h4HYPERLINK\l"_Toc420837234"3.2.2汽车荷载内力计算PAGEREF_Toc420837234\h6HYPERLINK\l"_Toc420837235"4预应力钢筋的估算与布置PAGEREF_Toc420837235\h1