Cantilever casting construction cradle with underlaid main truss

Abstract

The invention discloses a cantilever casting construction cradle with an underlaid main truss, wherein a main truss (4) is symmetrically arranged at the two sides of the lower part of a cast beam (9); a support rolling device is arranged behind the main truss (4) and the middle part of the main truss (4) is vertically hinged with a main truss hanger (43); an upright slot (100) is formed on the upper part of a hinging hole of the main truss hanger (43) in same direction; a rear beam (1) is transversely arranged on the upper part of the front end of the cast beam (9); the two ends of the rear beam (1) are respectively connected with a C-shaped arm (2), and the other end of each C-shaped arm (2) faces down uprightly and the end part of the other end of the C-shaped arm (2) is inserted into the upright slot (100) of the main truss hanger (43). By use of the cantilever casting construction cradle with the underlaid main truss, the construction space on the upper part of the cradle is saved, and the problem that a reinforcement cage cannot be integrally hoisted due to the insufficient construction space is solved.

Description

technical field [0001] The invention relates to bridge cantilevered construction equipment, in particular to a cantilevered construction hanging basket placed under the main truss. Background technique [0002] The hanging basket is a kind of construction equipment used in the bridge cantilever pouring construction method, and it is a movable construction platform. During the cantilever pouring construction process, the traditional hanging basket places the main truss above the beam surface, the front end of the main truss bears the pouring load during the construction process, and the rear end is anchored on the poured beam section. For example, the Chinese invention patent publication CN1916289A discloses A diamond-shaped hanging basket, the main truss is placed at the upper end of the beam. Since the main truss is arranged above the beam surface, it occupies a large amount of upper construction space. When the hanging basket is moved forward and started pouring construct...

AI Technical Summary

Problems solved by technology

Since the main truss is arranged above the beam surface, it occupies a large amount of upper construction space. When the hanging basket is moved forward and started pouring construction, because the upper construction space is not enough, the reinforcement cage cannot be hoisted in place as a whole, so it is necessary to bind and assemble the reinforcement cage on site. However, the binding and assembly of steel cages often take up a lot of construction time.

Generally speaking, during the cantilever pouring construction process, the construction period of each standard section is about 7 working days, and the on-site binding and assembly of the reinforcement cage takes about 2 to 3 working days, accounting for each standard section. One-third of the construction period of the block, greatly lagging behind the pouring period of the continuous beam

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