Waterproof node structure for door-window cave and construction method of external door-window pre-buried steel auxiliary frame

Abstract

The invention relates to a waterproof node structure for a door-window cave. The waterproof node structure is arranged at the door-window cave and comprises an anchoring part, wherein a steel auxiliary frame is fixed on the door-window cave through the anchoring part, a JS waterproof coating layer is arranged at one side of the joint of the steel auxiliary frame and the door-window cave, and an external facing layer is arranged on the outer surface of the JS waterproof coating layer. The periphery of the external door-window cave is optimized into a full-concrete structure by virtue of a detailed design of a drawing, 20mm*40mm*1.6mm hot-dip galvanized steel square tubes are pre-buried into the side surface of the periphery of the cave in the construction process of a main body structure, are cut according to a door-window size discharging list, the anchoring part is welded to the square tubes, and two sides of the square tubes are blocked by virtue of polystyrene foam, so that the flow-in of the concrete is avoided; the square tubes are fixed with an aluminum alloy template by virtue of self-tapping screws and are poured into a main body structure together with the concrete, and the steel square tubes are pre-buried, so that the pollution, damage and corrosion caused by later-period civil construction to doors and windows are avoided, the formation of a leakage channel is completely eradicated, the construction quality is guaranteed, and meanwhile, the cost is saved.

Description

technical field [0001] The invention belongs to the technical field of buildings, and in particular relates to a waterproof node structure for door and window openings and a construction method for pre-embedded steel sub-frames for outer doors and windows. Background technique [0002] In the field of construction, water seepage on windowsills of exterior walls, damage to doors and windows, and pollution are common quality problems that are difficult to solve, and are also one of the quality problems that owners complain more about; with the continuous development and maturity of building decoration materials and construction technologies, buildings Facade construction practices are becoming more and more refined, standardized and factory-like. At the same time, owners are also demanding more and more details on the location, size and related functions of their doors and windows. [0003] After the door and window openings of the building are completed, because the size of t...

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Problems solved by technology

[0004] In order to solve the deficiencies in the prior art, the present invention provides a waterproof node structure for the openings of doors and windows and a construction...

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