Construction method for walking-type trackless triangular hanging basket

Abstract

The invention relates to the technical field of road and bridge construction, in particular to a construction method for a walking-type trackless triangular hanging basket. Through a travelling pressing wheel I and a travelling pressing wheel II, sliding friction is changed into rolling friction, and frictional resistance when the triangular hanging basket moves is reduced. A longitudinal beam ofa main truss of the triangular hanging basket is inclined through supporting of a front travelling supporting seat, so that part of the frictional resistance is overcome through gravity acting when the longitudinal beam of the main truss of the triangular hanging basket slides, and thus the purpose of reducing thrust required by moving the triangular hanging basket is achieved. Through the travelling pressing wheel II, the inclination angle of the longitudinal beam of the main truss of the triangular hanging basket can be limited, and the excessively-large distance of backwards sliding of thelongitudinal beam of the main truss of the triangular hanging basket under the action of the gravity can be prevented. Through the travelling pressing wheel I and the travelling pressing wheel II, thelongitudinal beam of the main truss of the triangular hanging basket is supported, meanwhile, it is ensured that the travelling pressing wheel I is always located at the left half section of the longitudinal beam of the main truss of the triangular hanging basket, and thus the excessively-large shear stress of the longitudinal beam of the main truss of the triangular hanging basket is prevented.

Description

technical field [0001] The invention relates to the technical field of road and bridge construction, in particular to a construction method of a walking trackless triangular hanging basket. Background technique [0002] Trackless hanging baskets are widely used at home and abroad, and are generally suitable for cantilever construction of the main beam of the superstructure of continuous beam bridges with tight construction schedules, high requirements for cost control, and high requirements for engineering quality. The triangular hanging basket without track reduces the weight of components and the operation time of track anchoring, saves a lot of track steel, and is convenient and fast to construct. The rolling form reduces walking resistance and greatly shortens the segmental construction period. [0003] For example, the patent application number is CN201210587563.6, a kind of non-traveling rail type triangular hanging basket walking construction method, comprising the fo...

AI Technical Summary

Problems solved by technology

This invention is a hanging basket walking construction method that realizes the fast and safe walking of the triangular hanging basket without special walking tracks, but this invention fails to effectively solve the problem that the shear stress is easily overloaded when the main truss longitudinal beam travels without tracks, and it cannot solve the problem of the triangular hanging basket. The problem of large thrust required for movement has the disadvantages of high structural strength requirements for the main truss longitudinal beams and high construction costs

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