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Pier column and cross tie beam synchronous pouring supporting formwork structure and construction method thereof

A technology of simultaneous pouring and transverse tie beams is applied in the field of bridge pier column construction, which can solve the problems of poor adaptability to the height change of transverse tie beams, long construction period, and inability to reuse, so as to ensure streamlined construction operations and facilitate mold-turning construction. , the effect of improving the construction speed

Active Publication Date: 2016-11-09
西安市市政建设(集团)有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional construction method of transverse beam and pier column needs to complete the construction of the pier column first, and erect a transverse beam construction platform between the two piers to construct the transverse beam, which cannot realize the simultaneous construction of the pier column and the transverse beam, resulting in long construction period, Slow speed, cumbersome process and other defects, in response to these problems, there are invention patents "corbel bracket platform for simultaneous construction of bridge piers and transverse beams and its construction method (CN103882813B)" and "a bridge pier and transverse beam cattle Leg bracket synchronous construction method (CN103866697B)” discloses the platform structure and corresponding construction method of simultaneous construction of pier columns and transverse beams. The channel steel corbels are welded on the pier column formwork, and the upper section steel beams and distribution beams form the transverse system. beam bracket platform
[0004] The existing technology of synchronous construction of the transverse beam and the pier column still has the following technical problems: (1) The height of the transverse beam bracket platform fixed on the pier column formwork is fixed, which has poor adaptability to the height change of the transverse beam and cannot be reused; (2) The top and bottom of the pier column formwork are integrated, and different pier column heights need to be made in a targeted manner, and the consumables are time-consuming; (3) The overall stability of the transverse beam bracket platform is poor

Method used

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  • Pier column and cross tie beam synchronous pouring supporting formwork structure and construction method thereof
  • Pier column and cross tie beam synchronous pouring supporting formwork structure and construction method thereof
  • Pier column and cross tie beam synchronous pouring supporting formwork structure and construction method thereof

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Embodiment

[0042] A bridge adopts double-leg pier columns with a diameter of 1.2m, a height of 15m, and a distance of 5m. The cross-section of the transverse beam is 1.0×0.8m.

[0043] Segmented pier column formwork 3 is made of two semicircular formwork fastened by horizontal connecting bolts 20, with an inner diameter of 1.2m, a thickness of 8mm, and a length of 2m; the outer side is uniformly welded with transverse ribs 4 and vertical ribs 5, and its cross-sectional size is 50× 6mm. The segmented pier formwork 3 is evenly provided with screw through holes, one end of the pre-embedded internal thread positioning rod 17 is welded to the longitudinal rib 7 of the pier column, and the other end is welded to the steel gasket 18 with a sealing ring 28, and the fastening bolt 19 passes through The screw through hole fixes the pier column template 3 on the pier column longitudinal reinforcement 7 .

[0044] The height of the segmented pier column formwork 3 with triangular braces 9 is 4m, an...

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Abstract

The invention relates to a pier column and cross tie beam synchronous pouring supporting formwork structure and a construction method thereof. The formwork structure comprises a bearing platform, poured pier columns arranged on the bearing platform, pier column formworks arranged on the poured pier columns and a section steel cross beam arranged between the pier column formworks. The formwork structure is characterized in that an auxiliary cross beam is fixedly arranged on the section steel cross beam, a cross tie beam bottom formwork and a cross tie beam side formwork are arranged on the auxiliary cross beam, and the two ends of the section steel cross beam are arc-shaped steel supports; each pier column formwork is a segmented, wherein a set of triangle ties are welded to the isoheight position of the side face of the pier column formwork, a steel plate is arranged on the triangle ties, and a jack for supporting the section steel cross beam is arranged on the steel plate. The supporting formwork structure has the advantages that the pier column formworks are convenient to assemble, disassemble and turn over, construction speed is high, adaptability to the height of the cross tie beam is high, construction quality is reliable, and the supporting formwork structure has good technical economical benefits.

Description

technical field [0001] The invention relates to the technical field of bridge pier column construction, in particular to a synchronous pouring formwork structure for pier columns and transverse beams and a construction method thereof. Background technique [0002] In the construction of urban viaducts and high-speed railways, double-leg piers are usually used for the construction of bridge piers. In the case of high bridge pier heights, a transverse beam needs to be added between the double-leg pier cap and the cover beam to increase the height of the pier. To ensure the overall stability of the bridge, the conventional method is to construct the bridge pier column first, and then use the bracket method, steel rod method or hoop method to erect the transverse beam construction platform for construction. [0003] The traditional construction method of transverse beam and pier column needs to complete the construction of the pier column first, and erect a transverse beam const...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 王新泉
Owner 西安市市政建设(集团)有限公司
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