铁道标准设计
鐵道標準設計
철도표준설계
RAILWAY STANDARD DESIGN
2014年
12期
63-66,75
,共5页
预应力混凝土%桥梁%节段%预制%拼装
預應力混凝土%橋樑%節段%預製%拼裝
예응력혼응토%교량%절단%예제%병장
Prestressed concrete%Bridges%Segments%Precast%Assemble
节段预制拼装法造桥是分段建造桥梁的一种，在原理上是从预应力结构、箱梁设计和分段施工法综合而成，经济技术性强，适用范围广。结合课题研究成果和工程实例，从包括技术特点、优缺点、分类等节段预制拼装造桥基本理论入手，对包括节段预制基本方法、通用制梁技术、节段梁吊装和运输技术等的节段预制技术，包括逐跨拼装法节段拼装装备、平衡悬臂法节段拼装装备等的节段拼装装备，包括节段拼装方法、通用拼装技术等的节段拼装技术，最后特别强调节段预制拼装线形控制技术，并对采用该技术进行桥梁设计提出建议。
節段預製拼裝法造橋是分段建造橋樑的一種，在原理上是從預應力結構、箱樑設計和分段施工法綜閤而成，經濟技術性彊，適用範圍廣。結閤課題研究成果和工程實例，從包括技術特點、優缺點、分類等節段預製拼裝造橋基本理論入手，對包括節段預製基本方法、通用製樑技術、節段樑弔裝和運輸技術等的節段預製技術，包括逐跨拼裝法節段拼裝裝備、平衡懸臂法節段拼裝裝備等的節段拼裝裝備，包括節段拼裝方法、通用拼裝技術等的節段拼裝技術，最後特彆彊調節段預製拼裝線形控製技術，併對採用該技術進行橋樑設計提齣建議。
절단예제병장법조교시분단건조교량적일충，재원리상시종예응력결구、상량설계화분단시공법종합이성，경제기술성강，괄용범위엄。결합과제연구성과화공정실례，종포괄기술특점、우결점、분류등절단예제병장조교기본이론입수，대포괄절단예제기본방법、통용제량기술、절단량조장화운수기술등적절단예제기술，포괄축과병장법절단병장장비、평형현비법절단병장장비등적절단병장장비，포괄절단병장방법、통용병장기술등적절단병장기술，최후특별강조절단예제병장선형공제기술，병대채용해기술진행교량설계제출건의。
Bridge built with assembled precast segments is one kind of segmented bridge. In principle, it is built in combination of prestressed structures, box girder design and segmented construction method, which is superior in technology and economy with wide application. In view of the research results and project practices including technical features, advantages and disadvantages, and classification related to precast segment assembling, this paper summarizes precast segmental technologies for segment fabrication, lifting, transport and assembly, the equipment for span-by-span assembling and the equipment with balanced cantilever, the segment assembling method and the general assembly techniques. At the same time, the paper addresses the alignment control technology and provides suggestions on the design of bridges employing such technologies.
