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Novel slipway beam for incremental launching construction

A technology of jacking construction and slideway beams, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as single structural form, inconvenient construction, and increased construction costs, so as to save construction costs and facilitate on-site construction. The effect of saving the construction period

Inactive Publication Date: 2010-12-29
CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in this construction method, since the traditional slideway beam is only used as a support structure for the longitudinal movement of the beam, its structure is single and its function is simple. increase and inconvenience of construction

Method used

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  • Novel slipway beam for incremental launching construction
  • Novel slipway beam for incremental launching construction
  • Novel slipway beam for incremental launching construction

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0018] like figure 1 As shown, the present invention includes the front and rear slideway beams 300, 100 and the middle slideway beam 200 of a box-shaped structure, and the heights of the front and rear slideway beams 300, 100 are consistent and higher than the height of the middle slideway beam 200, thereby Realize that the slideway beam keeps the continuity of the top surface of the slideway beam when crossing the pier top pad stone, and can save steel materials. The rear slideway beam 100 and the front slideway beam 300 pass through the embedded parts 400, the main pier 700 and the side of the pier respectively. The bracket 800 is fixedly connected, the middle slideway beam 200 is supported on the upper surface of the main pier 700 through the support pad 900, and the two ends of the middle slideway beam 200 are respectively connected with the front and rear slide...

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Abstract

The invention discloses a novel slipway beam for incremental launching construction. The beam comprises a front slipway beam, a back slipway beam and a middle slipway beam which have box-shaped structures and are connected into a whole through bolts, wherein an upper surface on the back part of the back slipway beam is provided with a concave pit; four vertical lifting jacks are vertically arranged in the concave pit and arranged in an array form along the axial central cross section of the back slipway beam; the back end face of the beam slipway beam is provided with a support platform; a horizontal continuous lifting jack is arranged on the support platform; the left and right sides of the upper surfaces of the front, back and middle slipway beams are provided with stainless steel plates respectively; and traction rope insertion pipes are arranged inside the front, back and middle slipway beams along the length directions of the front, back and middle slipway beams. The slipway beam has the advantages of ensuring the continuity of horizontal lifting, projecting and longitudinal movement in a steel beam pier-passing process well, bringing convenience to field construction, saving construction period, avoiding additional arrangement of temporary individual projecting and horizontal lifting structures and saving construction cost.

Description

technical field [0001] The invention relates to a bridge construction device, in particular to a novel slideway beam used for jacking construction. Background technique [0002] The jacking construction method is an advanced self-erecting bridge construction method without supports. This method opens up a prefabricated site at the rear of the bridge head. Each prefabricated section is applied with a horizontal hydraulic jack. The sliding device composed of polytetrafluoroethylene molded board pushes the beam to the opposite bank section by section. After all the pushing is in place, the beam is dropped to replace the formal support to complete the bridge construction. The jacking construction method has the following advantages: [0003] 1) The jacking method construction belongs to the method of erecting bridges without supports, which can save a lot of supports and scaffolding, and does not require large-scale hoisting equipment; the prefabrication of beam sections is fac...

Claims

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Application Information

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IPC IPC(8): E01D21/00
Inventor 秦顺全李军堂涂满明毛伟琦张爱花姚发海张瑞霞万成钢代皓唐勇
Owner CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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