A fully automatic pier formwork lifting and positioning device

Abstract

The invention discloses a full-automatic bridge pier template lifting and locating device and method. A cement concrete bearing layer is paved at the periphery of a bridge pier; a rectangular framework is arranged on the bearing layer; a vertical sliding chute and a horizontal sliding chute are arranged on the rectangular framework; the coordinates and relative elevation of each template are input to a computer; a lifting motor is started to run; the longitudinal lifting height of each template is controlled through the computer; the motor stops working when the templates reach up to the designed heights; a hydraulic loading device is started through a computer control system; semicircular templates horizontally slide and move through guide blocks; and the coordinates of a GPS locating system are controlled through computer programs to meet the design requirement. An automatic bridge pier template regulating device not only can be used for reducing the construction cost and safety risks, but also has significance for accelerating the construction progress.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a fully automatic pier formwork lifting and positioning device. Background technique [0002] At present, the pier construction usually customizes the pier formwork according to the design size of the pier. The pier construction process is to bind the longitudinal steel bars and stirrups of the pier first, and then use the crane to lift the formwork in sections, and then use the total station to check the position of the hoisted formwork. Finally, fix the formwork, Pouring concrete, concrete maintenance and demolition to complete the bridge pier construction; authorization number CN202519586U proposes a steel-wood composite clear-faced concrete bridge pier formwork structure, including a visa panel with the same cross-sectional shape as the pier cross-sectional shape, and is set on the outer cross-section of the visa panel It is a rectangular outer formwork, and a sup...

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Problems solved by technology

[0002] At present, the pier construction usually customizes the pier formwork according to the design size of the pier. The pier construction process is to bind the longitudinal steel bars and stirrups of the pier first, and then use the crane to lift the formwork in sections, and then use the total station to check the position of the hoisted formwork. Finally, fix the formwork, Pouring concrete, concrete maintenance and demolition to complete the bridge pier construction; authorization number CN202519586U proposes a steel-wood composite clear-faced concrete bridge pier formwork structure, including a visa panel with the same cross-sectional shape as the pier cross-sectional shape, and is set on the outer cross-section of the visa panel It is a rectangular outer formwork, and a supporting wood is provided between the outer formwork and the Weisa panel as a support, and a steel frame fastening structure is provided outside the outer formwork for tightening the outer formwork frame; the authorized announcement number CN204530482U proposes a conical pier formwork with variable cross-section, Install wedge-shaped bars between the two sets of semicircular formwork. The slope of the wedge-shaped bar is consistent with the slope of the bridge pier. Before the construction of each section, the corresponding wedge-shaped bar is connected with the main plastic formwork to have a variable cross-sectional size. Since the crane hoisting operation belongs to high-altitude operations, repeated lifting The formwork not only increases the construction cost but also increases the construction safety risk. In order to reduce the construction cost, reduce the construction safety risk and improve the operation efficiency is of great significance for the construction of bridge piers

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