Construction method of waterproof structure for roof deformation joints in basement of high-rise buildings

Abstract

The invention relates to a construction method for a waterproof structure of a high-rise building basement top plate deformation joint. The construction method includes the following steps that a water stop steel plate is arranged at the position of the basement top plate deformation joint in the length direction of the deformation joint; an extruded polystyrene board is inlaid in an upper deformation joint and a lower deformation joint of the water stop steel plate; a concrete top plate is poured; the upper surface of the extruded polystyrene board is compactly filled with waterproof sealing paste in an embedded manner along the deformation joint; face edges of a water stop belt face upwards; a waterproof coil strengthening layer is arranged on the outer side of the rubber water stop belt; and a waterproof layer is arranged on the outer side of the waterproof coil strengthening layer. According to the construction method, the problems that when the concrete top plate and the external bonding water stop belt are constructed at the same time, the external bonding water stop belt is likely to be deflected, concrete at the lower side portion of the water stop belt is not vibrated compactly, the protection cost of the external bonding water stop belt and a finished sealing paste product is high, and repairing is difficult after damage is caused are solved; the upper portion of the top plate is made into a slope concrete returning table, water draining on the surface is facilitated, and the seepage probability is lowered; and the phenomenon that body structure construction is affected due to cross operation of relevant processes is avoided, limitation on the construction time is avoided, and the overall construction quality is ensured.

Description

technical field [0001] The invention relates to a building construction method, in particular to a construction method of a waterproof structure for deformation joints of the basement roof of a high-rise building. Background technique [0002] According to the requirements of the atlas, the conventional construction method of the roof joint of "10J301 Underground Waterproof Structure" is selected; this method has limitations: (1) If the external waterstop is fixed before pouring concrete, the concrete under the waterstop is not easy to vibrate and compact , the quality is difficult to control; moreover, in the process of pouring concrete, it is easy to cause the deviation of the waterstop, and it is difficult to guarantee the quality of the sealing paste embedding; (2) if the external waterstop is installed after pouring the concrete, the final setting time of the concrete will It is not easy to control, causing the concrete to solidify and harden, and it is impossible to pr...

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Problems solved by technology

[0002] According to the requirements of the atlas, the conventional construction method of the roof joint of "10J301 Underground Waterproof Structure" is selected; this method has limitations: (1) If the external waterstop is fixed before pouring concrete, the concrete under the waterstop is not easy to vibrate and compact , the quality is difficult to control; moreover, in the process of pouring concrete, it is easy to cause the deviation of the waterstop, and it is difficult to guarantee the quality of the sealing paste embedding; (2) if the external waterstop is installed after pouring the concrete, the final setting time of the concrete will It is not easy to control, causing the concrete to solidify and harden, and it is impossible to press the surface edge of the external waterstop into the concrete to form a whole, resulting in gaps and easy leakage; (3) The waterproof protective layer and backfill construction cannot be carried out immediately after the construction of the deformation joint The construction can only be carried out after the main structure is completed and deformed. During the construction of other processes, the external waterstop is easily damaged, and the exposure time of the waterstop is long, and the protection cost of the finished product is relatively high. Overall, once the waterstop is damaged, it is difficult to repair, and the quality after repair is difficult to guarantee

(4) If the concrete on the upper surface of the deformation joints of the basement roof is not raised, the flatness is not easy to control, and it is easy to accumulate water at this position, which increases the probability of leakage; A technical problem to be solved urgently

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