Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for main beam of cable-stayed bridge
The invention provides a cable-stayed bridge girder construction method which comprises the following steps: S1, after construction of a main pier is completed, mounting a bracket on the upper part of the main pier to complete one-time pouring of an initial section; s2, the two main piers are constructed synchronously, after the concrete strength and the elastic modulus of the initial section reach preset parameters, side span cast-in-place section construction and middle span cast-in-place section construction are conducted on the two sides of each pier body correspondingly, and the side span cast-in-place sections and the middle span cast-in-place sections are divided into a plurality of sections; and S3, the side span closure section constructed to the closure section is poured in an asynchronous construction mode, and then the middle span closure section is poured. The mode that the side span cast-in-place section and the middle span cast-in-place section are constructed synchronously is adopted, the construction efficiency is guaranteed, by means of the length difference between the middle span and the side span, side span closure section pouring is conducted firstly, then middle span closure section pouring is conducted, and side span closure is conducted quickly and economically.
本发明提供一种斜拉桥主梁施工方法，包括以下步骤：步骤S1，在主墩施工完成后，在主墩上部安装托架将起始段一次浇筑完成；步骤S2，两个主墩进行同步施工，在起始段混凝土强度及弹性模量达到预设参数后，在墩体两侧分别进行边跨现浇段和中跨现浇段施工，将边跨现浇段和中跨现浇段均分为多个节段；步骤S3，采用异步施工的方式先将施工至合拢段的边跨合拢段浇筑，然后进行中跨合拢段浇筑。采用边跨现浇段和中跨现浇段同步施工的方式，保证了施工效率，利用中跨和边跨的长度差异，首先进行边跨合拢段浇筑，然后进行中跨合拢段浇筑，快速经济的进行边跨合拢。
Construction method for main beam of cable-stayed bridge
The invention provides a cable-stayed bridge girder construction method which comprises the following steps: S1, after construction of a main pier is completed, mounting a bracket on the upper part of the main pier to complete one-time pouring of an initial section; s2, the two main piers are constructed synchronously, after the concrete strength and the elastic modulus of the initial section reach preset parameters, side span cast-in-place section construction and middle span cast-in-place section construction are conducted on the two sides of each pier body correspondingly, and the side span cast-in-place sections and the middle span cast-in-place sections are divided into a plurality of sections; and S3, the side span closure section constructed to the closure section is poured in an asynchronous construction mode, and then the middle span closure section is poured. The mode that the side span cast-in-place section and the middle span cast-in-place section are constructed synchronously is adopted, the construction efficiency is guaranteed, by means of the length difference between the middle span and the side span, side span closure section pouring is conducted firstly, then middle span closure section pouring is conducted, and side span closure is conducted quickly and economically.
本发明提供一种斜拉桥主梁施工方法，包括以下步骤：步骤S1，在主墩施工完成后，在主墩上部安装托架将起始段一次浇筑完成；步骤S2，两个主墩进行同步施工，在起始段混凝土强度及弹性模量达到预设参数后，在墩体两侧分别进行边跨现浇段和中跨现浇段施工，将边跨现浇段和中跨现浇段均分为多个节段；步骤S3，采用异步施工的方式先将施工至合拢段的边跨合拢段浇筑，然后进行中跨合拢段浇筑。采用边跨现浇段和中跨现浇段同步施工的方式，保证了施工效率，利用中跨和边跨的长度差异，首先进行边跨合拢段浇筑，然后进行中跨合拢段浇筑，快速经济的进行边跨合拢。
Construction method for main beam of cable-stayed bridge
一种斜拉桥主梁施工方法
HUANG JINGXIN (Autor:in) / XU YONGQIU (Autor:in) / MA CHAO (Autor:in) / HUANG ZIYANG (Autor:in) / PENG XIN (Autor:in)
07.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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