A method for installing prefabricated beams and slabs with one-way restraint of corrugated PTFE rubber bearings

A rubber bearing and installation method technology, applied in bridges, bridge construction, bridge parts, etc., can solve problems such as unfavorable lateral stability of bridges, sliding failure of sliding bearings, difficulty in seating prefabricated beams, etc., to avoid longitudinal sliding failure, Improve installation efficiency and position accuracy, and increase the effect of erection speed

Active Publication Date: 2019-09-20
雨发建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the process of erecting the prefabricated beam slab on the PTFE plate support, due to the omnidirectional sliding of the PTFE plate support on the horizontal plane, it caused the disadvantages of difficulty in positioning the prefabricated beam during the installation process, large deviation of the installation position and safety accidents, etc. On-site workers put less or no silicone grease in order to improve installation efficiency and reduce safety risks by reducing the sliding properties during the installation of the support, which caused the sliding support to fail during use and eventually led to sliding The bearing is damaged; and the omnidirectional sliding characteristics of the traditional bridge PTFE plate rubber bearing is not conducive to the lateral stability of the bridge during the later use of the bridge

Method used

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  • A method for installing prefabricated beams and slabs with one-way restraint of corrugated PTFE rubber bearings
  • A method for installing prefabricated beams and slabs with one-way restraint of corrugated PTFE rubber bearings
  • A method for installing prefabricated beams and slabs with one-way restraint of corrugated PTFE rubber bearings

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example 1

[0138] (1) Project overview

[0139] (2) Application situation

[0140] Among the 11 bridges of this project, the Yongning River Bridge is a newly built bridge, using pre-tensioned pre-stressed concrete hollow slabs, with 5 spans and a span of 20m. The original design uses traditional PTFE rubber on the 0# and 5# platforms. Bearings, considering the large deviation of the installation position of the traditional bridge PTFE plate rubber bearing and the prone to safety accidents, with the consent of Party A, the design and supervision unit, the bridge 0#台 and 5# bridges were erected on this bridge In the construction of this method, the wave surface PTFE plate rubber bearing of this construction method is used.

example 2

[0142] (1) Project overview

[0143] (2) Application situation

[0144] The No. 6 River Bridge Project of the two bridges in this project has a total length of 21.04m, a single hole, and a span of 16m. The upper part of the bridge adopts 1×16m simply supported prestressed concrete hollow slab girder, and the lower part adopts light abutment and bored pile foundation. The pile foundation is connected to the bridge abutment cover beam. The original design used 32 traditional PTFE plate rubber bearings on the 1# abutment. After discussion, with the consent of Party A, the design and supervision unit, the wave surface PTFE plate rubber bearings were replaced.

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Abstract

The invention discloses an installing method of a wave surface tetrafluorohydrazine plate rubber support one-way constraint prefabricated beam plate. Certain constraint force is exerted on a prefabricated beam in the installing process, and the disadvantages that due to omnibearing movement of the prefabricated beam, the installing position is uneasy to control and a slip accident easily occurs are avoided; the use of tetrafluorohydrazine plate rubber support silicone grease oil is guaranteed, longitudinal slide failure of the support is avoided, and the service life of the support is prolonged; in the later using process of a bridge, elastic constraint force is exerted on the prefabricated beam, part of impact force of a vehicle and seismic force can be buffered, and anti-impact and seismic performance of the bridge is improved. By means of the installing method of the wave surface tetrafluorohydrazine plate rubber support one-way constraint prefabricated beam plate, the installing efficiency and position accuracy of the prefabricated beam are improved, the service life of the support and the beam plate is prolonged, materials are saved, environmental pollution is reduced, the time in the installing process is greatly shortened, repeated use of a machine is reduced, and the installing method is significant in safety of the installing, constructing and operating stage of the prefabricated beam.

Description

Technical field [0001] The invention relates to a method for installing a unidirectional restrained prefabricated beam plate of a wave surface tetrafluoroethylene rubber bearing. Background technique [0002] The one-way restraint installation of prefabricated beams is based on a new type of bridge erection method of wave surface PTFE plate rubber bearing. The wave surface unidirectional PTFE plate bearing is composed of wave stainless steel plate 1 and wave surface PTFE plate rubber bearing 2 (such as figure 1 ), the corrugated stainless steel plate and the wave surface PTFE rubber support form a one-way sliding surface. During the erection of the prefabricated beam plate, the prefabricated beam plate gravitational component force formed laterally by the wave surface of the support will restrain the beam plate in the transverse direction. The beam position is controlled by the trough position of the support, making it easier to control the drop beam position during the erection p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00E01D19/04
Inventor 杨通梁玉龙付学朋万峰
Owner 雨发建设集团有限公司
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