摘要
本设计为凌川大桥的设计(太原街桥),本次设计的目的是为了缓解市区交通
压力以及推动凌南新区发展而在原西大桥与南桥之间建设一座跨小凌河的大桥。
本设计的主要内容包括水文计算,梁桥上部结构设计计算,下部结构设计计算。
其中水文计算的资料和数据为市水文局提供。通过水文计算设计桥长为420米,
经方案的比较认为采用双跨30米结构的预质力混凝土简支T形梁桥较为合适。根
据任务书中的要求一一桥宽12米为双向双车道,人行道为2.5X2,考虑桥宽,
设计为6片主梁,桥墩为钻孔灌注桩,双柱式桥墩,桥面铺装为沥青混凝土,排
水为2%单向横披。设计计算书主要有——主梁内力计算,预成力钢筋的布置和估
算,主梁截面的特性和验算,以及墩台基础和行车道板的设计等。
关键词:凌川大桥;预应力混凝土简支T形梁桥;结构设计
Abstract
OriginallydesignforthedesignofLingChuanbridge(thebridgeofstreetofTaiyuan),
thepurposethatdesignforalleviateurbanareatrafficpressureandisitinsultandsouth
newlydevelopedareadevelopmentbuildonesteplightbridgeofLingheRiveramong
originalwestbridgeandsouthbridgetopromote.Themaincontentoriginallydesigned
includeshydrologytocalculate,LiangQiaocalculatesintopstructuraldesign,the
underpartstructuraldesigniscalculated.Materialsanddatacalculatinginhydrology
amongthemareofferedforhydrologyofficeofthecity.Itis420meterstocalculate
anddesignthebridgelongthroughhydrology,Bytoisitadoptpairstep30
prestressingforceofstructureconcretesimpletopropupTcomparativelysuitable
beambridgetothinkrelativelyscheme.Accordingtothedemandinthetaskbook-It
isthetwo-waypairoflanesthatthebridgeis12meterswide,thepavementis2.5X2,
considerthebridgeiswide,designas6slicesofgirders,thepierpoursintoonein
ordertohole,thetwincolumnstypepier,thebridgefloordecoratesforthebituminous
concrete,drainoffwateras2%ofthehorizontalwallinscriptions.Designand
calculatetherearethebooksmainly-Girderinternalforcecalculate,prestressingforce
reinforcingbardecorateandestimation,girdersectionalcharacteristicandchecking
computations,andmoundTVstationfoundationanddesign,runwayofboard.
Keyword:LingChuanbridge;Theprestressingf