External inclined type concrete arch rib construction method and hydraulic self-creeping formwork equipment

Abstract

The invention applies to the field of bridge construction, and provides a method for constructing camber-type concrete arch ribs, as well as a hydraulic self-ascending mold device. The method is to utilize the hydraulic self-ascending mold device for construction by adopting a self-ascending mold segmented cantilever casting mode. A rail and a template of the self-ascending mold device are both in the shape of a straight line or straight surface, or are both in the shape of a curve or a curved surface. The method constructs the camber-type concrete arch ribs by adopting the self-ascending mold segmented cantilever casting mode, wherein the guide rail and the template of the self-ascending mold device can be in the shape of a curve or a curved surface; as the template and a bracket of the device can be repeatedly used during the construction of the arch ribs, steel used for the template and the bracket can not be wasted; in addition, the method can greatly improve construction efficiency, shortens construction period, and realizes that a cast concrete arch rib is small in the deviation value of structural three-dimensional coordinate, accurate in structure size, smooth in line shape and clear in edge angle, and achieves the high-precision requirements on line shape deviation.

Description

technical field [0001] The invention belongs to the field of bridge construction, and in particular relates to a construction method of an outwardly inclined concrete arch rib and hydraulic self-climbing formwork equipment. Background technique [0002] At present, the arch rib construction of domestic arch bridges mostly adopts the support method, that is, the construction of full formwork and full support method. Although this construction method has a simple construction process and clear force, but for the construction of irregular structures, such as the construction of outwardly inclined concrete arch ribs, the use of support method will result in waste of formwork, low efficiency, long period, high cost of support, and support. Problems such as difficulty in preloading and difficulty in guaranteeing linear shape. Contents of the invention [0003] The object of the present invention is to provide a construction method for outwardly inclined concrete arch ribs, aimi...

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Problems solved by technology

[0003] The object of the present invention is to provide a construction method for outward-inclining concrete arch ribs, aiming to solve the problems of serious waste of formwork, difficulty in ensuring alignment, low construction efficiency, and large amount of steel used for supports in existing arch rib construction methods

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