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Method for temporarily blocking simply supported girder bridge expansion joint

A technology of simply supported beam bridges and expansion joints, which is applied in bridges, bridge parts, bridge construction, etc., and can solve problems such as inability to continue paving, inability to ensure smoothness, etc.

Inactive Publication Date: 2020-10-23
CHINA MCC20 GRP CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention proposes a method for temporarily sealing the expansion joints of simply supported beam bridges, aiming at solving the problem that the asphalt paving of existing beam bridges cannot be continuously paved when the expansion joints of the bridges are not constructed, and the use of sand and gravel materials cannot be guaranteed. flatness problem

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  • Method for temporarily blocking simply supported girder bridge expansion joint
  • Method for temporarily blocking simply supported girder bridge expansion joint
  • Method for temporarily blocking simply supported girder bridge expansion joint

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Embodiment Construction

[0026] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0027] see figure 1 , which is a flow chart of a method for temporarily sealing expansion joints of a simply supported beam bridge provided by an embodiment ...

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Abstract

The invention provides a method for temporarily blocking a simply supported girder bridge expansion joint. The method comprises the following steps that a girder plate is installed on a bridge lower structure which is verified to be qualified according to design requirements; according to a bridge expansion joint design drawing, a height-adjustable blocking device is manufactured; bridge pavementreinforcing steel bars are bound according to a design drawing, a template is supported, then concrete is poured, and a groove is reserved in the end of the expansion joint along a longitudinal beam of the bridge during concrete pouring; according to the height difference between the groove in the expansion joint and the position of the corresponding beam plate, the height-adjustable blocking device is installed on the groove, and the middle position of the blocking device is supported through the beam plate; asphalt is paved on the bridge deck. After the bridge deck is paved and before asphalt is paved, the blocking device is arranged at the expansion joint to block the expansion joint, so that the expansion joint is temporarily and compactly blocked, the asphalt paving quality is guaranteed, and part of construction vehicles can conveniently pass through the expansion joint.

Description

technical field [0001] The invention relates to the technical field of highway engineering, in particular to a method for temporarily sealing expansion joints of simply supported beam bridges. Background technique [0002] Simply supported girder bridge is a kind of bridge form after the beam slab is assembled, the concrete pavement layer is constructed on the top of the beam slab, and then the asphalt pavement is paved. The construction process of the bridge expansion joint is constructed after the asphalt pavement is paved. Temporarily fill the position of the expansion joint, otherwise the asphalt paving work cannot be carried out continuously, and the smoothness of the road surface cannot be guaranteed. [0003] In order to meet the deformation requirements of the bridge deck, telescopic devices are usually installed between the two girder ends, between the girder end and the abutment, or at the hinged position of the bridge. The role of bridge expansion joints is to ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/06E01D19/08E01D21/00
CPCE01D19/06E01D19/083E01D21/00
Inventor 张磊安殿峰舒智文徐朱立朱松
Owner CHINA MCC20 GRP CORP
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