Large-span high-load prestressing force groove-shaped composite plate used as top plate of anti-aircraft basement

Abstract

The invention discloses a large-span prestressing force groove-shaped composite plate used as a top plate of an anti-aircraft basement of 6 grades and lower than 6 grades. The composite plate is characterized in that a groove-shaped composite plate with a large span, a high load, a narrow board width and a low rib height forms a functional member together with an upper composite layer. Due to the adoption of an elastic-plastic deformation resilience characterization coefficient of a prestressing force plate, the resistance of the member under the action of a short-term effect of a nuclear explosion shock wave is improved. Therefore, materials are substantially saved, and the floor height is reduced. A groove-shaped large load meets the using requirements of an underground garage; parking spaces are saved in a large span; due to the adoption of a groove-shaped narrow board, the manufacturing cost and the floor height can be reduced; and the composite plate has an appropriate rib height and can meet load bearing requirements and the requirement of forming an air channel on a rib, the floor height is not increased, and a groove-shaped horizontal air channel is easy to connect. When the composite plate is used for the top plate of the underground garage, a construction period can be accelerated, the floor height can be reduced, the manufacturing cost can be reduced, a column grid can be saved, the parking spaces can be increased, and the grade of the underground garage can be improved.

Description

technical field [0001] The invention belongs to the field of building materials, and relates to a reinforced concrete composite load-bearing member, in particular to a large-span and large-load prestressed roof used as a basement roof of level 6 and below civil air defense basements or basement roofs covered with soil for running fire trucks Grooved laminated panels. Background technique [0002] The long-span prestressed concrete channel slab is a prefabricated reinforced concrete bearing member combined with beam and slab, which consists of a wide panel and two narrow and high ribs. Its panel is both a transverse load-bearing structure and a compression zone for longitudinal load-bearing ribs. Therefore, long-span prestressed concrete channel slabs have good structural mechanical properties, clear force transmission levels, and simple geometric shapes. They are economical load-bearing components that can be made into large-span, large-load, and large-coverage areas. [0...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the above problems of the current level 6 and below civil air defense basements and garages, to provide a large-span and large-load prestressed groove-shaped laminated slab used as the roof of the underground garage, thereby simplifying the building structure, saving construction period, saving cost, Save land, especially save excavation area or save parking spaces, improve the grade of underground garages and civil air defense basements of level 6 and below

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