Method for anchoring prestressed pipeline construction through light positioning support
A technology of prestressed pipes and positioning brackets, which is applied in the erection/assembly of bridges, bridge materials, buildings, etc., can solve the problem of not giving construction methods and other problems, so as to ensure the installation accuracy, save the amount of steel used, and reduce the construction period. Effect
Pending Publication Date: 2022-05-13
CHINA CONSTR SIXTH ENG DIV CORP +1
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Problems solved by technology
Therefore, in response to this situation, in the invention patent with application number 202110532479.3, our company proposed a positioning device and disclosed its construction method, which improved the installation efficiency, but this is only for the construction method of the positioning device, and does not Give the overall construction work method
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[0046] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0047] Such as Figure 1 to Figure 10 As shown, a method for anchoring prestressed pipeline construction using light positioning brackets, the specific steps are:
[0048] S1. Construction scheme design
[0049] Based on the general route of layered construction, considering the influence of concrete hydration heat, the overall stability of positioning bracket 5, and the length of prestressed pipe 6 on anchorage construction, the pouring thickness of each layer of concrete is between 1.5m and 2.5m , the positioning bracket 5 is erected by a cantilever, and is divided into three layers, and each prestressed pipe 6 is divided into three sections combined with the positioning bracket 5;
[0050] S2, positioning bracket 5 standardized design
[0051] In order to meet the joint construction of the positioning bracket 5 and ensure the positioning accuracy of the...
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The invention relates to a construction method for anchoring a prestressed pipeline by using a light positioning bracket. The method comprises the following specific steps: designing a construction scheme; standardized design of the positioning bracket; the positioning support is composed of an embedded part, a bottom frame, a piece frame, a transverse connecting rod and a U-shaped supporting plate. Processing a positioning bracket; construction of an expanded foundation; positioning and mounting an anchor surface anchor backing plate and a notch; mounting a positioning bracket; carrying out lofting measurement and positioning installation on the prestressed pipeline; the prestressed pipeline is lengthened; and pouring concrete of the anchor block. Compared with overall positioning and supporting of the prestressed pipeline, the construction method of layered pouring, layered splicing of the positioning supports and segmented lengthening of the prestressed pipeline is adopted, the high-altitude operation of splicing and positioning of the positioning supports for anchoring the prestressed pipeline is completely avoided by controlling the cantilever length of the positioning supports, and the installation precision of the prestressed pipeline is ensured; the construction time of overall lap joint of the positioning support is avoided, and the construction period is remarkably shortened.
Description
technical field [0001] The invention relates to the technical field of construction of a long-span suspension bridge, in particular to a method for anchoring a prestressed pipeline by using a light positioning bracket. Background technique [0002] Anchorage is one of the main stress-bearing structures of suspension bridges. The design and construction of its structure directly affect the overall safety, stability and durability of the bridge structure. The main cable transmits the tension to the anchor body through loose saddle cables and prestressed cable guides. To achieve the effect of restraining both ends of the main cable. The precise positioning and installation of the prestressed cable guide is a key node in the construction of the anchorage system during the anchorage construction process, so it is very important to carry out special design on the strength, stiffness, stability and construction process of the prestressed positioning bracket. [0003] The methods c...
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IPC IPC(8): E01D21/00E01D11/02E01D19/14E01D19/16E01D101/30E01D101/24
CPCE01D21/00E01D11/02E01D19/14E01D19/16E01D2101/30E01D2101/24
Inventor 耿文宾刘晓敏周俊龙杨毅辉李飞陈诗翔李明黄堂唐谢鹏林马慧杰强伟亮熊港李晓磊赵旭白万帅
Owner CHINA CONSTR SIXTH ENG DIV CORP