Large-span high-speed railway steel-concrete composite beam cable-stayed bridge girder linear one-time forming high-precision construction method
The invention discloses a large-span high-speed railway steel-concrete composite beam cable-stayed bridge girder linear one-time forming high-precision construction method which comprises the following steps: S1, establishing a bridge construction control finite element model, the determined manufac...
Saved in:
Main Authors | , , , , , , , , |
---|---|
Format | Patent |
Language | Chinese English |
Published |
15.08.2023
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The invention discloses a large-span high-speed railway steel-concrete composite beam cable-stayed bridge girder linear one-time forming high-precision construction method which comprises the following steps: S1, establishing a bridge construction control finite element model, the determined manufacturing geometric parameters comprise the unstressed length L0 of the inhaul cable, the compression compensation amount L1 of a side span steel beam, the compression compensation amount L of the length L of a middle span steel box beam, a main tower pre-lifting beam H and the pre-throwing amount D when a main beam is erected; s2, steel box girders and stay cables are manufactured and machined according to geometric parameters, a concrete main tower is constructed, steel-concrete composite beams are erected, and midspan closure is conducted; s3, second-stage pavement is constructed, and at the moment, the line shape of the main beam is a finished bridge line shape; and S4, the finished bridge line shape and cable for |
---|---|
Bibliography: | Application Number: CN202310400214 |