现代交通技术
現代交通技術
현대교통기술
XIANDAI JIAOTONG JISHU
2012年
2期
30-33,52
,共5页
组合箱梁%简支转连续%内力效应%单排支承%双排支承
組閤箱樑%簡支轉連續%內力效應%單排支承%雙排支承
조합상량%간지전련속%내력효응%단배지승%쌍배지승
composite box girder%transform from simply supported into continuous%internal force effect%single-row bearing%double-row bearing
简支转连续组合箱梁越来越多地应用于长桥以及大桥的引桥,该结构的支承形式包括单排支承和双排支承,单排支承需要将临时支座转换为中间1排永久支座,双排支承则直接在临时支座的位置安放2排永久支座。文章分别对简支转连续的施工过程进行受力分析对比,得出了2种支承形式在恒载、活载以及附加内力作用下不同的结构内力效应,为单、双排支承结构的研究、设计以及施工提供了一定的参考。
簡支轉連續組閤箱樑越來越多地應用于長橋以及大橋的引橋,該結構的支承形式包括單排支承和雙排支承,單排支承需要將臨時支座轉換為中間1排永久支座,雙排支承則直接在臨時支座的位置安放2排永久支座。文章分彆對簡支轉連續的施工過程進行受力分析對比,得齣瞭2種支承形式在恆載、活載以及附加內力作用下不同的結構內力效應,為單、雙排支承結構的研究、設計以及施工提供瞭一定的參攷。
간지전련속조합상량월래월다지응용우장교이급대교적인교,해결구적지승형식포괄단배지승화쌍배지승,단배지승수요장림시지좌전환위중간1배영구지좌,쌍배지승칙직접재림시지좌적위치안방2배영구지좌。문장분별대간지전련속적시공과정진행수력분석대비,득출료2충지승형식재항재、활재이급부가내력작용하불동적결구내력효응,위단、쌍배지승결구적연구、설계이급시공제공료일정적삼고。
Composite box girder with simply supported into continuous support is more and more widely used in long bridges and approach spans.There are two kinds of supporting forms,including single-row bearing and double-row bearing.For single-row bearing,temporary supports need to be changed into a single row of temporary supports,while for double-row bearing,two rows of temporary supports can be directly set on the location of the temporary supports.This paper compares force analysis during simply supported into continuous support construction,and analyzes different structural internal force effect for these two supporting forms under the action of dead load,live load and additional inner force.It can be taken as reference for the research,design and construction of single-row and double-row supporting structure.
