Renovation transformation construction method for large building roof

Abstract

The invention relates to a renovation transformation construction method for a large building roof, and belongs to the technical field of renovation and transformation of a building roof. The method comprises the following steps of S1, removing a roof protection layer to a waterproof layer, and reserving the complete waterproof layer; S2, detecting the positions of roof panels, cutting and separating along seams between adjacent roof panels, simultaneously cutting and separating welding positions between the roof panels to be removed and a steel beam, in-situ mounting a new roof panel immediately after one old roof panel is removed by using the method of dismounting and mounting therewith, and filling seams of adjacent newly-mounted roof panels with mortar; and S3, after replacement with arow of new roof panels is completed, making a first waterproof layer adhering to the row of new roof panels, and making the first waterproof layer in lap joint with the waterproof layer of the old roof and sealing. When the old roof panels are replaced with the new roof panels, the complete waterproof structure of the roof can be ensured all the time, the indoor leakage is avoided during rainfallor snowfall, and normal use of a building is ensured.

Description

technical field [0001] The invention relates to the technical field of building roof renovation, in particular to a large-scale building roof renovation construction method. Background technique [0002] At present, most of the large-span and large-space conference centers, museums, exhibition halls, gymnasiums and other buildings built in my country adopt steel truss structure roofs. [0003] The existing steel truss structure roof includes steel trusses and reinforced concrete roof panels arranged on the steel trusses. The roof panels are welded and fixed to the steel trusses. The roof panels are equipped with waterproof and thermal insulation structures. The waterproof and thermal insulation structures include leveling from bottom to top. layer, insulation layer, waterproof layer, concrete bonding layer and roof tiles, however, with the increase of building life, some buildings built in the 1960s and 1980s, the reinforced concrete roof panels on the roof have passed 50-60...

AI Technical Summary

Problems solved by technology

[0003] The existing steel truss structure roof includes steel trusses and reinforced concrete roof panels arranged on the steel trusses. The roof panels are welded and fixed to the steel trusses. The roof panels are equipped with waterproof and thermal insulation structures. The waterproof and thermal insulation structures include leveling from bottom to top. layer, insulation layer, waterproof layer, concrete bonding layer and roof tiles, however, with the increase of building life, some buildings built in the 1960s and 1980s, the reinforced concrete roof panels on the roof have passed 50-60 years The structural strength is weakened and the earthquake resistance is insufficient, so it needs to be replaced. In view of the above problems, how to ensure the safe replacement of the old and new roof panels and ensure the normal use of the building interior is the direction that needs to be studied at present.

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