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序言组合连续梁桥是日本高速公路上最近修建的一种桥形,本文介绍的是预应力混凝土按后张法施工的。它将连续梁分成几个阶段进行施工,主梁先作成简支的,先预制张拉,再将预制的简支梁架设在临时支座上,架设的简支预制梁即可作为支架,横梁和桥面板借此进行就地浇筑。预制梁架设后,即可就地浇筑支点处横梁混凝土,接着则张拉预制的简支梁之间的连接索,这个连接索锚于相邻两跨简支梁最靠近支点的横梁上,桥面分两阶段施工,一阶段桥面板为靠近支点
Preface The combination of continuous beam bridge is a bridge recently built on the Japanese highway, this article describes the prestressed concrete according to post-tension method of construction. It will be continuous beam is divided into several stages of construction, the main beam made of simple support, prefabricated prestressed, and then the prefabricated simply supported beam on the temporary support, the erection of the simply supported prefabricated beam can be used as a bracket, beam And bridge deck to take place in this pouring. After the prefabricated girder is erected, the concrete at the fulcrum can be poured in situ, and then the prefabricated cable can be stretched between the prefabricated simply supported girders. The connecting cable is anchored to the girder closest to the fulcrum of the adjacent two spanned simply supported girders. The bridge Surface construction in two phases, a stage deck near the fulcrum