PAGE\*MERGEFORMAT2摘要本毕业设计为朝阳寺桥结构设计，为三跨预应力结构，标准跨径为3×25m，桥面净空：净—11+2×0.5（防撞墙）m。桥梁全长为75m，桥面总宽12m，横坡为2%；桥垮轴线为直线，设计荷载标准为：公路-Ⅱ级。本文主要阐述了该桥设计和计算过程，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，再进行强度，应力及变形验算，最后进行下部结构设计和结构验算。同时，也给出了各部分内容相关的表格与图纸。通过这次设计不但了解设计桥梁的各个步骤、设计规范。而且也能熟练的运用AUTOCAD绘制图纸。关键词：装配式T形简支桥梁结构设计强度验算钻孔灌注桩Abstracthisgraduationdesignisabridgestructuredesign,chaoyangtempleforthreespansprestressedstructure,standardfor3x25m,spanbridgedeckisclear:net-11+2x0.5m(againstawall).Bridgespanis75m,surfacetotal12mwide,crossslopeis2%;Bridgecollapseaxisforthestraightline,designloadstandardis:road-Ⅱlevel.Papermainlyexpoundsthedesignandcalculationprocess,firstofall,theoverallstructureofthemaindesign,andthenontheupperstructureinternalforceandreinforcementcalculation,forstrength,stressanddeformationcalculation,andfinallytothelowerstructuredesignandcalculation.Atthesametime,alsogivesthecontentrelatedtoformthepartsanddrawings.Throughthisdesignnotonlytounderstandthevarioussteps,designspecificationofthebridge.ButalsoabletoskillfullyuseAUTOCADdrawings.Keywords:prefabricatedTsimply-supportedbridgestructuredesign,strengthcalculationboredpilesPAGE\*MERGEFORMAT5目录TOC\o"1-3"\h\uHYPERLINK\l_Toc14688第1章设计任务书PAGEREF_Toc146881HYPERLINK\l_Toc229741.1工程名称：PAGEREF_Toc229741HYPERLINK\l_Toc132981.2设计阶段：PAGEREF_Toc132981HYPERLINK\l_Toc37411.3设计原则：PAGEREF_Toc37411HYPERLINK\l_Toc125941.4设计标准、规范PAGEREF_Toc125941HYPERLINK\l_Toc98281.4.1设计标准：PAGEREF_Toc98281HYPERLINK\l_Toc45911.4.2技术规范PAGEREF_Toc45911HYPERLINK\l_Toc20751.5主要材料PAGEREF_Toc20752HYPERLINK\l_Toc278061.5.1混凝土PAGEREF_Toc278062HYPERLINK\l_Toc219341.5.2预应力钢筋PAGEREF_Toc219342HYPERLINK\l_Toc214071.5.3普通钢筋PAGEREF_Toc214072HYPERLINK\l_Toc306191.5.4其他材料PAGEREF_Toc306192HYPERLINK\l_Toc58061.6地质勘察资料PAGEREF_Toc58062HYPERLINK\l_Toc110301.6.1桥位地质勘察资料PAGEREF_Toc110303HYPERLINK\l_Toc8426第2章上部结构设计PAGEREF_Toc84264