Standardized movable formwork

Abstract

The invention discloses a standardized movable formwork. The standardized movable formwork comprises border area formwork structures and a middle area formwork body. The border area formwork structures are arranged on the two sides of the middle area formwork body. Each border area formwork structure is mainly composed of a border area travelling distribution girder, roller boxes, outer casing pipes, pin shafts, a connecting truss, inner casing pipes A, bearing beams, a hydraulic jack E, a transfer shaft, a bracing, hoops, lateral formwork brackets, a transverse distribution girder, a longitudinal distribution girder, a guard bar, a template, a folding zone distribution girder and a limiting stop dog. The standardized movable formwork is used for construction of portal pier uniform-section cast-in-situ prestressed concrete box girders, and the formwork is a full-assembly type combined steel structure, is convenient to construct, capable of being moved and adjusted, safe, environmentally friendly and efficient, and has good application and popularization value.

Description

technical field [0001] The invention relates to a mold base, in particular to a standardized movable mold base. Background technique [0002] The mobile formwork bridge building machine is a construction machine with its own formwork, which uses the cap or pier column as a support to pour the bridge on site. Its main features: good construction quality, simple construction operation, low cost, etc. In foreign countries, it has been widely used in the continuous beam construction of highway bridges and railway bridges, and it is a relatively advanced construction method. Domestically, it has begun to be used on highways and railway passenger dedicated lines. The mobile formwork bridge building machine is mainly composed of: outrigger mechanism, supporting truss girder, inner and outer formwork, main beam lifting mechanism and so on. It can complete a series of construction from mobile support to pouring and molding. [0003] In recent years, municipal viaducts mostly adop...

AI Technical Summary

Problems solved by technology

At present, the construction of municipal cast-in-place prestressed concrete box girders generally adopts the full hall support method or the beam support method. When the full hall support method is used for construction, the support erection period is long, the structural safety is poor, the support consumption is large, and the traffic is affected. Corrosion, deformation, cracking and other problems are prone to occur during the turnover process, which affects the structural safety; when the beam support method is used for construction, the construction period is long, the material transfer is frequent, the site is occupied, and the safety risk is high

Therefore, above-mentioned two kinds of construction methods all have obvious shortcoming.

Images