Support system for construction of straight-line section of cantilever beam at soft foundation and erecting method of support system

Abstract

The invention provides a support system for construction of a straight-line section of a cantilever beam at a soft foundation and an erecting method of the support system. The support system comprises a first steel pipe of which the bottom is connected with a bearing platform and a second steel pipe inserted in the soft foundation; a cross strut and a diagonal bridging are connected between the first steel pipe and the second steel pipe; a bailey truss is arranged at the top ends of the first steel pipe and the second steel pipe; a triangular cantilever support is connected to the end end of the bailey truss; the triangular cantilever support comprises a cross beam and a longitudinal beam perpendicular to each other; the longitudinal beam is connected with the bailey truss; the cross beam is level with the top end of the bailey truss; lumps of wood and formworks are further paved on the top ends of the bailey truss and the triangular cantilever support. After the poured concrete of the straight-line section gains the desired strength, the triangular cantilever support at the front end of the bailey truss in the support system is detached first to empty the lower space so that the front cross beam of a hanging basket bed die can be moved conveniently, and therefore, the construction of a closure section can be carried out conveniently; as a result, the support system is short in construction period, high in construction efficiency, low in cost and convenient to detach.

Description

technical field [0001] The invention relates to the field of construction technology, in particular to a construction support system for the straight section of a cantilever beam at a soft foundation and That Build method. Background technique [0002] With the rapid development of modern economy, the construction of rail transport is imminent. In the construction of rail transportation, cantilever beams are often used in the construction of bridges. When the straight section of the existing cantilever beam is located on the soft foundation, the foundation reinforcement treatment is often used or a large number of steel and bowl buckles are used to erect the support system, which is costly, time-consuming, and requires a large amount of hoisting, and the risk of working at heights increases, especially in the straight section. After pouring is completed, it will seriously affect the walking of the closing section hanging basket on the front beam of the bottom form, increas...

AI Technical Summary

Problems solved by technology

When the straight section of the existing cantilever beam is located on the soft foundation, the foundation reinforcement treatment is often used or a large number of steel and bowl buckles are used to erect the support system, which is costly, time-consuming, and requires a large amount of hoisting, and the risk of working at heights increases, especially in the straight section. After the pouring is completed, it will seriously affect the running of the closing section hanging basket on the front beam of the bottom form, increasing the difficulty of construction

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