Hydraulic device for moulding board of precast beam

Abstract

The invention discloses a hydraulic device for a moulding board of a precast beam. The hydraulic device is connected between the moulding board of a precast T-shaped concrete beam and a ground surface and consists of foundation embedded parts, a hydraulic system, a slideway system and a location system. The foundation embedded parts are pre-embedded on the ground surfaces on the left side and right side of the moulding board of the precast T-shaped concrete beam and comprises a hydraulic cylinder base embedded part, a cushion rail foundation embedded part and a vertical tie bar foundation embedded part. The hydraulic system comprises a hydraulic pumping station, a hydraulic control valve block, a hydraulic cylinder and a high-pressure oil pipe. The slideway system comprises a slide rail, a slide block and a cushion rail. The location system comprises a lower tie bar, a vertical tie bar and an aslant tie bar. The device replaces a gantry crane, so the interference of the gantry crane on the concrete casting construction is avoided, the efficiency for disassembling and assembling a lateral moulding board and the utilization ratios of the moudling board and a concrete pedestal are enhanced, and in the demoulding process, the collision between the moulding board of the precast T-shaped concrete beam and the beam is avoided, so the phenomena of collision damage, knocked-off corner and concrete slurry leakage of the beam are reduced.

Description

technical field [0001] The invention relates to the field of prestressed concrete bridge production, in particular to a hydraulic device for dismantling prefabricated concrete beam formwork. Background technique [0002] In the production process of precast concrete T-beams, the damage to the surface of the beam body due to grout leakage and formwork removal has always been a problem that affects the appearance quality of the beam body. At the same time, the damage to the concrete surface also has a great impact on the durability of the component concrete. Influence, especially the design life of prefabricated components for passenger dedicated lines and high-speed railways is 100 years, so higher requirements are put forward for the durability of concrete. [0003] At present, the traditional precast concrete T-beam formwork is designed as bottom formwork, side formwork, end formwork, transverse connection plate formwork, bottom ingot pad, wedge and jacking wire, etc. Durin...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a precast beam formwork hydraulic device, to solve the technical problem that the surface of the beam body is easily damaged when the precast concrete T beam is removed from the formwork; question

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