Construction method of overpass cross beam

A construction method and technology for viaducts, applied in the direction of erecting/assembling bridges, bridges, bridge construction, etc., can solve problems affecting construction progress and quality, beam tensioning, grouting and end capping work restrictions, etc.

Pending Publication Date: 2019-11-15
MCC COMM CONSTR GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above-mentioned problems, the purpose of the present invention is to provide a method for constructing viaduct beams to solve the current problems of beam tensioning, grouting and end sealing due to the limitation of work space, which affect the construction progress and quality.

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  • Construction method of overpass cross beam
  • Construction method of overpass cross beam

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Embodiment Construction

[0024] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

[0025] In order to describe in detail the flow of the viaduct beam construction method of the present invention, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] figure 1 Show the flow process of viaduct beam construction method according to the present invention; figure 2 A partial schematic structure of a viaduct according to an embodiment of the present invention is shown.

[0027] Such as figure 1 with figure 2 Commonly shown, the viaduct beam construction method...

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Abstract

The invention provides a construction method of an overpass cross beam. The construction method includes the steps that the position of a preformed hole located above an anchor backing plate is determined on the top faces of tensioning notches in the two ends of the cross beam and marked and positioned; corresponding rebar frameworks and tensioning pipes are mounted at the position of the cross beam in an intersecting manner, and steel strands are arranged in the tensioning pipes; and then a corresponding preformed pipeline is vertically buried in the position where the preformed hole is marked, and the preformed pipeline assists in later steel strand prestress tensioning positioning, mud jacking and end sealing construction. By means of the construction method, the complexity of tensioning and anchor sealing construction of the cross beam can be simplified, the construction method is convenient and efficient, the physical quality of the finished product is high, and the speed is high.

Description

technical field [0001] The invention relates to the technical field of building construction, and more specifically, to a method for constructing a beam of a viaduct. Background technique [0002] With the acceleration of social urbanization, the number of urban car ownership continues to increase, and traffic congestion has become a major problem related to the lives of urban residents. In order to make better use of the limited space of the urban public road network and realize the expressway of three-dimensional traffic on the ground, various viaducts in the city Planning and construction is increasing day by day. [0003] At present, the design of viaducts mostly adopts the form of cast-in-place box girder structure, and realizes interconnection through curved ramp bridges and parallel ramps. The standard width of cast-in-place girder design is two-way four-lane and six-lane, and the standard section bridge width is generally more than 25 meters. The substructure genera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 侯小龙唐灶荣冷铁松肖剑
Owner MCC COMM CONSTR GRP CO LTD
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