Echelon cradle as well as construction method thereof

Abstract

The invention relates to a bridge construction suspended wagon structure and a construction method thereof, wherein a suspended wagon comprises a main truss plate, a bracing, a bottom die platform and hangers thereof, an inner formwork, an outer formwork and supports and hangers thereof, a rear anchoring system and a walking system, wherein the main truss plate is connected by a vertical and a lever bracings, the back portion of a bottom chord bar of the main truss plate is connected with the back anchorage system, the walking system comprise a lower slide way which is located on the lower portion of the main truss plate, the main truss plate is a trapezoid truss structure, an upper leveling bar of the main truss plate is equipped with a front beam and a middle beam, a front point of the bottom die platform is hung on the front beam when walking, and a back point of the bottom die platform is hung on the middle beam. When the suspended wagon walks, an external formwork support is located on the bottom die platform, a front hoisting point and a back hoisting point of the bottom die platform are respectively hung on a front upper beam and a middle beam, the front upper beam and the middle beam drive the bottom die platform to firstly slide to the back portion of a front support from the back portion of the suspended wagon, and then a main truss of the suspended wagon drives the whole suspended wagon to vertically move in position. The line feed status has no overturning moment, the line feed status does not need an embedded gluten any more, the use amount of non recoverable parts is greatly reduced, and the economic benefit is obvious.

Description

technical field [0001] The invention relates to a bridge building construction device and a construction method thereof, in particular to a bridge construction hanging basket structure and a construction method thereof. Background technique [0002] The bridge construction hanging basket is a device used for cantilever casting of long-span concrete bridges. In the current hanging basket, the main girders have similar force modes in the concrete pouring state and running state. In the concrete pouring state, the rear anchor system must be installed, and the anti-tension support must be installed when running: the glide path and the anchor bar are important force transmission components. , the anti-tension support transmits the tensile force to the poured beam body through the glideway and the slideway anchor bars, and the glideway anchor bars are densely distributed on the slideways of all box girder segments. The bottom form platform and the outer form are hung on the outer...

AI Technical Summary

Problems solved by technology

This form of hanging basket will cause too many embedded parts, which cannot be recycled, require high anchor bar embedding accuracy, extremely low reuse rate of the slideway, and the design of the anti-tension support is more complicated, resulting in uneconomical, especially for narrow beams bridges these are completely avoidable

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