Railway assembled hollow pier and construction method thereof

A construction method and hollow technology, applied in the direction of erecting/assembling bridges, bridges, bridge parts, etc., can solve the problems of violating the design principles of prefabricated bridges, heavy weight of prefabricated components, and difficulty in hoisting, so as to meet the light design concept and construction Convenient and fast, good overall mechanical performance

Inactive Publication Date: 2020-06-26
CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of prefabricated and assembled gravity piers directly leads to heavy weight of prefabricated components, inconvenient transportation, difficulty in hoisting, and increased costs, which violates the design principle of lightweight prefabricated bridges
In contrast,

Method used

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  • Railway assembled hollow pier and construction method thereof
  • Railway assembled hollow pier and construction method thereof
  • Railway assembled hollow pier and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The embodiment of the present application provides a railway assembled hollow pier, such as figure 1 As shown in the structure, the railway assembled hollow pier includes a cap 1, a standard pier column segment 2, a pier top pier column segment 3 and a pad stone 4 connected sequentially from bottom to top; wherein, the cap 1 and the pad stone 4 are both It is made for on-site pouring; pier top pier column section 3 and standard pier column section 2 are prefabricated components; pier top pier column section 3 includes a solid section at the top and a hollow section at the bottom; standard pier column section 2 is Hollow tubular structure; cap 1 is used as the foundation of the railway assembled hollow bridge pier, standard pier column segment 2 and pier top pier column segment 3 constitute the pier column, pad stone 4 is used to support the bridge; installed on the pier top pier column segment 3 The number of standard pier column segments 2 between it and the cap 1 can ...

Embodiment 2

[0058] The embodiment of the present application also provides a construction method. When the construction method is used to construct the railway assembled hollow pier provided in the above embodiment, such as Figure 5 As shown, the construction method includes the following steps:

[0059] Step S100, prefabricating the standard pier column section 2 and the pier top pier column section 3; since the standard pier column section 2 and the pier top pier column section 3 can be prefabricated on site or in the beam field in advance, it only needs to be It only needs to be hoisted, which can greatly shorten the construction period of the bridge pier; the prefabricated standard pier column section 2 and pier top pier column section 3 can be carried out before construction, and can also be carried out at the same time as the construction of cap 1;

[0060] Step S200, pouring caps 1 on site. At the pier construction site, caps 1 need to be poured according to actual needs, and a pl...

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PUM

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Abstract

The embodiment of the invention relates to the technical field of railway pier construction, and especially relates to a railway assembled hollow pier and a construction method thereof. The railway assembled hollow pier comprises a bearing platform, standard pier stud sections, pier top pier stud sections and padstones; the bearing platform and the padstones are both manufactured by in-situ casting; the pier top pier stud sections and the standard pier stud sections are all prefabricated parts; the standard pier stud sections are of hollow tubular structures; a self-locking anchorage device fixing end, a steel strand corrugated pipe and an embedded steel bar are embedded in the bearing platform; the bearing platform, the standard pier stud sections and the pier top pier stud sections are assembled and positioned through a plurality of concave-convex shear keys; and the top ends of the prestress steel strands are tensioned on the tops of the pier top pier stud sections, and the guide heads at the bottom ends of the prestress steel strands are fixedly connected with the self-locking anchorage device fixing ends in a self-locking mode. The railway assembled hollow pier can meet the rigidity design requirement of a railway bridge, the light design concept is achieved, all components are in precise butt joint, the assembling reliability is achieved, and the construction period is shortened.

Description

technical field [0001] The present application relates to the technical field of railway bridge pier construction, in particular to a railway assembled hollow bridge pier and a construction method thereof. Background technique [0002] The existing railway bridge construction has been adhering to the development concept of "industrialized construction and rapid construction". The prefabricated bridge structure has good economic and social benefits because it can speed up construction, reduce environmental pollution, and reduce labor costs. At present, in the construction technology of railway bridges, erecting simply supported beams through the whole hole is relatively mature, but the development of prefabricated and assembled bridge piers is relatively slow. [0003] Since the railway bridge needs to meet the requirements of train ride comfort, it is necessary to ensure that the bridge piers have a certain rigidity, so the railway bridge piers mostly adopt gravity piers or ...

Claims

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Application Information

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IPC IPC(8): E01D19/02E01D21/00
CPCE01D19/02E01D21/00
Inventor 张扬种博肖张华王明海郭波徐勇苏国明
Owner CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP
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