国防交通工程与技术
國防交通工程與技術
국방교통공정여기술
TRAFFIC ENGINEERING AND TECHNOLOGY FOR NATIONAL DEFENCE
2012年
4期
12-15
,共4页
小夹角斜交%连续梁%现浇支架%设计
小夾角斜交%連續樑%現澆支架%設計
소협각사교%련속량%현요지가%설계
intersecting at a small intersection angle%continuous beam%supports for cast-in-place construction%design
某铁路连续梁桥上跨已经施工完的另一铁路桥且两桥夹角很小。上跨桥梁采用支架现浇施工，而下穿桥梁不允许在桥上搭设支架。利用军用抢修器材及碗扣脚手架形成“墩一梁一脚手架”支架体系，采用“门洞式横抬梁”方案成功解决了该问题。文中对设计过程做了较为详尽的阐述，并对碗扣架、军用梁和军用支墩的安全性进行了检算。施工实践表明该支架体系设计合理，成功解决了小夹角斜交桥现浇施工时上面支架不能安放于下方桥梁上的技术难题。
某鐵路連續樑橋上跨已經施工完的另一鐵路橋且兩橋夾角很小。上跨橋樑採用支架現澆施工，而下穿橋樑不允許在橋上搭設支架。利用軍用搶脩器材及碗釦腳手架形成“墩一樑一腳手架”支架體繫，採用“門洞式橫抬樑”方案成功解決瞭該問題。文中對設計過程做瞭較為詳儘的闡述，併對碗釦架、軍用樑和軍用支墩的安全性進行瞭檢算。施工實踐錶明該支架體繫設計閤理，成功解決瞭小夾角斜交橋現澆施工時上麵支架不能安放于下方橋樑上的技術難題。
모철로련속량교상과이경시공완적령일철로교차량교협각흔소。상과교량채용지가현요시공，이하천교량불윤허재교상탑설지가。이용군용창수기재급완구각수가형성“돈일량일각수가”지가체계，채용“문동식횡태량”방안성공해결료해문제。문중대설계과정주료교위상진적천술，병대완구가、군용량화군용지돈적안전성진행료검산。시공실천표명해지가체계설계합리，성공해결료소협각사교교현요시공시상면지가불능안방우하방교량상적기술난제。
A certain railway continuous girder bridge straddles another finished railway bridge at a ,;mall intersection angle. As is known to all, a bridge spanning another bridge may be cast-in-place with supports provided while a bridge going through un- der another bridge is not allowed to be built with supports provided. To solve this difficulty, a supporting system of ＂pier-beam- scaffolding＂ made up of military rush-repair equipment and bowl-buckle scaffolding is successfully designed by means of the ＂ doorway-type laterally-raised beam＂ scheme. The design process is dealt with in detail in the paper,with the safety of the bowl- buckle devices, military beams and military supporting piers checked. Construction practice shows t]aat the supporting system is rational in design,which successfully solves the technical problem of the upper supports being unable to be placed on the lower bridge during the construction of a bridge spanning another bridge at a small intersection angle.
