A method for replacing and maintaining bridge support cushion stones

Abstract

The invention discloses a replacement and maintenance method of a bridge foundation support padstone, and belongs to the construction field of bridge engineering. The method comprises the steps of S2, firstly executing ascending operation on a main beam, then taking away the original foundation support, clearing the original foundation support padstone and the peripheral area, and ensuring the peripheral area to be clean so as to be convenient for the subsequent grouting operation; S2, arranging a steel hoop in the area of the original foundation support padstone, and ensuring the original foundation support padstone area is surrounded by the steel hoop to form a grouting space; S3, carrying out the grouting operation to the grouting space, solidifying the sizing agent by adopting the steel hoop as a template, and forming a novel foundation support padstone with the periphery being sleeved with the steel hoop, so that the replacement and maintenance of the original foundation support padstone is realized. By adopting the method, the original broken foundation support padstone does not need to be removed, the template does not need to be disassembled, and thoroughness in repairing is realized; moreover, the method is applicable to the situation for increasing the foundation support padstone, and the secondary damage of the novel foundation support padstone can be avoided.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering construction, and more particularly relates to a method for replacing and maintaining bridge support cushion stones which can be flexibly adjusted. Background technique [0002] The bridge support pad stone is an important part of the support system, and it is a reinforced concrete pad set under the support. The support pad stone has many functions: (1) it plays an important role in ensuring that the support is not damaged; (2) the setting of the support pad stone leaves enough space for the replacement of the support in the future; (3) the support The backing stone has a leveling function to ensure that the support is placed horizontally; (4) the backing stone of the support can also effectively prevent the bridge deck from seeping and eroding the support. The bridge support pad stone has the characteristics of small size, large force, stress concentration, dense distribution of steel...

AI Technical Summary

Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a method for replacing and repairing the pad stones of bridge bearings, the purpose of which is to replace or repair the pad stones of the original damaged bearings without removing the original damaged bearings There is no need to remove the formwork for the pad stone, and the repair is thorough, and it is suitable for increasing the pad stone of the support, and will not cause secondary damage to the pad stone of the new support, thus solving the existing operations in the replacement and maintenance of the pad stone of the current support Limited space, heavy workload, incomplete repair or easy damage to the new support pad stone technical problems

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