Superimposed pouring procedure of high-rise building transfer floor beam plate

Abstract

The invention relates to construction of high-rise buildings and a superimposed pouring procedure of a high-rise building transfer floor beam plate, which comprises the following steps: pouring column concrete and wall concrete at the lower part of the transfer floor to a beam bottom; setting up a beam plate bottom die of the transfer floor and installing the bottom die; binding bottom-layer horizontal steel mesh reinforcement of the first layer of concrete of a transfer floor plate and surface course hogging moment steel mesh reinforcement of the first layer of concrete; installing a side form of the first layer of concrete; installing a shear-resisting key groove die plate; bonding additionally arranged vertical shear reinforcement between every two layers of transfer floor beam plates; carrying out pouring, hydrating, heat preservation, maintenance and surface treatment on the first layer of concrete; bonding constructional steel bar of the second layer of concrete of the transfer floor beam plates; installing the side form of the second layer of concrete; bonding shear wall joint bars at the upper structure of the transfer floor; disassembling the bottom die and the support when strength of the first layer of concrete reaches the design strength; carrying out pouring, hydrating, heat preservation and maintenance on the second layer of concrete. With the method of the invention adopted, construction cost can be reduced, construction quality can be improved and construction period can be shortened.

Description

Technical field [0001] The invention relates to the construction and construction of high-rise buildings, in particular to a construction method of high-rise building conversion floors. Background technique [0002] In most high-rise buildings, generally the upper floors are residences, hotels, etc., requiring small bays and more structural walls, while the lower podiums are mostly public places such as commerce, culture and entertainment, requiring large space and fewer walls. Therefore, there are differences in the structural form of the upper floor and the lower podium, and it is necessary to set a transfer floor between the upper floor and the lower podium. Since the transfer floor can be regarded as the foundation of the upper floor, the force is relatively large, and the thickness of the transfer layer is thicker and the reinforcement is dense during the structural design. Its thickness usually reaches 1.5 to 2.5 meters. Therefore, the bottom form of the beam slab of the tr...

AI Technical Summary

Problems solved by technology

[0004] ①. Since the full support scaffolding of all floor bottom forms below the transfer floor cannot be dismantled until the transfer floor is completed and reaches its strength, it is necessary to prepare a large amount of formwork support materials, and the rental cost or one-time purchase cost of materials is too high

[0005] ②. The overall pouring in the thickness direction of the beam and slab of the transfer floor is not conducive to the heat dissipation of large-volume concrete. Special cooling measures need to be taken, and the control is not good, and cracks are prone to appear

[0006] ③. The demolition of the full hall support scaffolding of the floor slab bottom formwork in the basement was late, which affected the construction decoration work interspersed in advance in the basement and delayed the total construction period