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A high-altitude large-span heavy-duty beam construction support and construction method

A large-span, cross-beam technology, applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems affecting the construction progress of the upper cross-beam, high support stability requirements, and complicated erection process, so as to achieve easy guarantee of processing quality and satisfy Structural force requirements and the effect of shortening the total construction period

Active Publication Date: 2019-01-04
CHINA RAILWAY FIRST GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a high-altitude large-span heavy-duty beam construction support for the above-mentioned deficiencies in the prior art. The support system has problems such as high cost, complex erection process, long construction period, high construction risk, high support stability requirements, and influence on the construction progress of the upper beam.

Method used

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  • A high-altitude large-span heavy-duty beam construction support and construction method
  • A high-altitude large-span heavy-duty beam construction support and construction method
  • A high-altitude large-span heavy-duty beam construction support and construction method

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Embodiment Construction

[0059] Such as figure 1 , figure 2 The shown high-altitude large-span heavy-load beam construction support includes a lower corbel supporting structure, an upper corbel supporting structure located above the lower corbel supporting structure, and a middle part of the bottom supported on the lower corbel supporting structure The supporting structure, the upper corbel supporting structure and the top surface of the middle supporting structure are flush, and the two constitute a temporary support platform for supporting the constructed beam. The constructed beam is the upper beam 1 of the cable-stayed bridge tower, The upper beam 1 is arranged horizontally and its two ends are respectively supported on the two tower columns 2 of the cable-stayed bridge tower, the upper beam 1 and the two tower columns 2 are both reinforced concrete structures; A load-bearing structure for horizontally supporting the upper beam 1 is built on the temporary support platform; the lower corbel support ...

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Abstract

The invention discloses a construction support and method for an overhead large-span heavy-duty cross beam. The construction support comprises a lower bracket supporting structure, an upper bracket supporting structure located above the lower bracket supporting structure, and a middle supporting structure with the bottom supported on the lower bracket supporting structure. The top face of the upper bracket supporting structure is flush with the top face of the middle supporting structure, and the upper bracket supporting structure and the middle supporting structure form a temporary supporting platform for supporting the cross beam to be constructed. A load bearing structure is erected on the temporary supporting platform. The construction method comprises the steps that firstly, the lower bracket supporting structure is installed; secondly, the upper bracket supporting structure and the middle supporting structure are installed; thirdly, the load bearing structure is erected; fourthly, the support is prepressed; fifthly, the upper cross beam is constructed; and sixthly, the support is removed. According to the construction support and method, design is reasonable, construction is easy and convenient, the using effect is good, and the problems that as for an existing floor steel pipe supporting system, cost is high, the erection process is complex, the construction period is long, the construction risk is high, the requirement for supporting stability is high, and the construction progress of the upper cross beam is affected can be effectively solved.

Description

Technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a high-altitude large-span heavy-load beam construction support and a construction method. Background technique [0002] Generally, the construction of the upper beam of the cable-stayed bridge (ie, the upper beam of the cable-stayed bridge tower) has the characteristics of heavy load, high altitude, and large span. The upper beam construction often becomes the most difficult project in the entire tower column construction. The existing construction method generally adopts a floor steel pipe support system (that is, a vertical support system). In order to ensure the construction safety of the upper beam structure, and at the same time to meet the force requirements, the floor steel pipe supports are mostly based on the following beams. The steel pipe piles are erected, and the pylon is attached to support each certain height. As the tower column rises, the stee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 张忠文静国锋邹松柏王军涛赵科鲁鹏博田晓东李亚辉吴友峰
Owner CHINA RAILWAY FIRST GRP CO LTD
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