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A platform for research: civil engineering, architecture and urbanism
Asymmetric load steel truss girder cable-stayed bridge side span closure construction control method
The invention discloses an asymmetric load steel truss girder cable-stayed bridge side span closure construction control method which is characterized by comprising the following steps: S1, mounting a girder storage section steel truss girder on a side pier; s2, the upstream/downstream elevation of the steel truss girder of the cantilever section is adjusted to the upper elevation and the lower elevation are located at the same horizontal height; s3, the closure section steel truss girder is in butt joint with the cantilever section steel truss girder; s4, the first elevation and the first vertical rotation angle of the butt joint end of the closure section steel truss girder and the girder storage section steel truss girder are adjusted till the design elevation and the design vertical rotation angle are reached; s5, adjusting a second elevation, a second vertical corner, a second transverse sidewise bending amount and a second transverse corner of the butt joint end of the beam storage section steel truss girder and the closure section steel truss girder until the second elevation, the second vertical corner, the second transverse sidewise bending amount and the second transverse corner are respectively the same as the first elevation, the first vertical corner, the first transverse sidewise bending amount and the first transverse corner; and S6, the beam storage section steel truss girder and the closure section steel truss girder are in butt joint, and closure is completed. The method has the advantages that the smoothness of the steel truss girder is kept, and the closure difficulty is reduced.
本发明公开了一种非对称荷载钢桁梁斜拉桥边跨合龙施工控制方法，其特征在于，包括以下步骤：S1、将存梁段钢桁梁安装在边墩上；S2、调整悬臂段钢桁梁的上游/下游标高至上、下游标高位于同一水平高度；S3、合龙段钢桁梁与悬臂段钢桁梁对接；S4、调整合龙段钢桁梁与存梁段钢桁梁对接端的第一高程和第一竖向转角，至其达到设计高程和设计竖向转角；S5、调整存梁段钢桁梁与合龙段钢桁梁对接端的第二高程、第二竖向转角、第二横向旁弯量和第二横向转角，至其分别与第一高程、第一竖向转角、第一横向旁弯量和第一横向转角相同；S6、对接存梁段钢桁梁和合龙段钢桁梁，合龙完成。本发明具有保持钢桁梁平顺，降低合龙难度的优点。
Asymmetric load steel truss girder cable-stayed bridge side span closure construction control method
The invention discloses an asymmetric load steel truss girder cable-stayed bridge side span closure construction control method which is characterized by comprising the following steps: S1, mounting a girder storage section steel truss girder on a side pier; s2, the upstream/downstream elevation of the steel truss girder of the cantilever section is adjusted to the upper elevation and the lower elevation are located at the same horizontal height; s3, the closure section steel truss girder is in butt joint with the cantilever section steel truss girder; s4, the first elevation and the first vertical rotation angle of the butt joint end of the closure section steel truss girder and the girder storage section steel truss girder are adjusted till the design elevation and the design vertical rotation angle are reached; s5, adjusting a second elevation, a second vertical corner, a second transverse sidewise bending amount and a second transverse corner of the butt joint end of the beam storage section steel truss girder and the closure section steel truss girder until the second elevation, the second vertical corner, the second transverse sidewise bending amount and the second transverse corner are respectively the same as the first elevation, the first vertical corner, the first transverse sidewise bending amount and the first transverse corner; and S6, the beam storage section steel truss girder and the closure section steel truss girder are in butt joint, and closure is completed. The method has the advantages that the smoothness of the steel truss girder is kept, and the closure difficulty is reduced.
本发明公开了一种非对称荷载钢桁梁斜拉桥边跨合龙施工控制方法，其特征在于，包括以下步骤：S1、将存梁段钢桁梁安装在边墩上；S2、调整悬臂段钢桁梁的上游/下游标高至上、下游标高位于同一水平高度；S3、合龙段钢桁梁与悬臂段钢桁梁对接；S4、调整合龙段钢桁梁与存梁段钢桁梁对接端的第一高程和第一竖向转角，至其达到设计高程和设计竖向转角；S5、调整存梁段钢桁梁与合龙段钢桁梁对接端的第二高程、第二竖向转角、第二横向旁弯量和第二横向转角，至其分别与第一高程、第一竖向转角、第一横向旁弯量和第一横向转角相同；S6、对接存梁段钢桁梁和合龙段钢桁梁，合龙完成。本发明具有保持钢桁梁平顺，降低合龙难度的优点。
Asymmetric load steel truss girder cable-stayed bridge side span closure construction control method
一种非对称荷载钢桁梁斜拉桥边跨合龙施工控制方法
ZHENG JIANXIN (author) / SUN NANCHANG (author) / LI JIE (author) / KANG XUEYUN (author) / HAN ZHIZHONG (author) / CHEN JIANRONG (author) / YUAN CAN (author) / LONG QIANG (author) / HUANG GANLE (author) / ZHOU HAO (author)
2024-03-01
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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