Form auto-lifting system and method for slip-form construction of thin-walled hollow high piers

Abstract

The invention discloses a form auto-lifting system for slip-form construction of thin-walled hollow high piers; the system comprises a platform truss, a hydraulic console and a plurality of climbing poles arranged in a pier stud structural range symmetrically relative to the centers of pier studs, the top of the platform truss is provided with an F-shaped lift rack at each climbing pole, a ball jack sleeving the corresponding climbing pole is mounted on the corresponding F-shaped lift rack, the ball jacks are connected to a hydraulic system through an oil circuit, a steel form is connected to each F-shaped lift rack, the hydraulic console includes a PLC (programmable logic controller), a miniature pressure sensor is embedded in the surface of each steel form in contact with concrete, the tops of probes of the miniature pressure sensors are flush with the surfaces of the steel forms, and the miniature pressure sensors are 20-30 cm away from the lower edges of the steel forms; the miniature pressure sensors are connected to the PLC through transmission wires. The hydraulic console lifts the steel forms synchronously according to surface strength of concrete so as to automatically lift the whole slip form.

Description

technical field [0001] The invention belongs to a lifting system in sliding formwork construction of high piers, and in particular relates to an automatic lifting system in sliding formwork construction. Background technique [0002] The traditional sliding form construction is completed by manually operating the hydraulic control console, and the mold drawing strength is not automatically displayed. The commonly used sliding form has its own manual hydraulic synchronous lifting system. Its structure is as follows: figure 1 As shown, it mainly includes a number of climbing poles 1 arranged symmetrically relative to the center of the pier column in the structure range of the high pier, the platform truss is composed of an inner truss 8 and an outer truss 9, and the top of the platform truss is provided with an F-shaped lifting frame 3 corresponding to the climbing pole 1 , the F-shaped lifting frame 3 is equipped with a ball jack 2 sleeved on the climbing pole 1, and the clim...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned prior art, the present invention provides an automatic formwork lifting system for sliding form construction of thin-walled hollow high pier, which can solve the problem of concrete surface collapse or cracking caused by inaccurate lifting time of sliding form in the prior art. Wide range of concrete surface modification and poor appearance quality are recognized as common problems in slipform construction

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