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...

AI Technical Summary

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 underg

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