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Large-span large-load prestressed grooved laminated slab used as basement roof

A basement roof and large-span technology, which is applied to roofs, buildings where cars are parked, and building components, etc., to achieve the effects of reducing floor height, saving costs, and saving excavation area

Active Publication Date: 2012-01-18
QINGDAO JINCHAO SPECIAL CONCRETE PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the above problems of the current underground garage and semi-underground garage, to provide a large-span and large-load prestressed groove-shaped laminated plate used as the roof of the underground garage, so as to simplify the building structure, save construction time, save cost, and save land. , especially to save excavation area or save parking spaces, improve the grade of underground garages and semi-underground garages

Method used

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  • Large-span large-load prestressed grooved laminated slab used as basement roof
  • Large-span large-load prestressed grooved laminated slab used as basement roof
  • Large-span large-load prestressed grooved laminated slab used as basement roof

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] as the picture shows:

[0015] figure 1 It is the bottom slab of groove-shaped laminated slabs, with a span of 16.8m, a slab width of 1.2m, a rib height of 0.9m, and a load capacity of 7T / m 2 , There are overlapping marks or reserved exposed steel bars on the board surface. In the design and production, prestressed steel strands are used as the main reinforcement on the ribs of the grooved laminated slabs, and the width of the slabs is small, and the shape of the troughs is similar to that of a double T plate, and the flanges on both sides are removed, thereby reducing the height of the ribs. Made of small ribs, embedded steel bars and concrete. Cast columns and L beams with conventional methods, and break the slab on the lower beams of L beams. figure 2 In order to remove the 4 corners of the lower part of the two ribs and the groove-shaped laminated slab,...

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Abstract

The invention discloses a large-span large-load prestressed grooved laminated slab used as a basement roof, which is characterized in that the large-span large-load prestressed grooved laminated slab has appearance of a grooved slab; a functional component is formed by the grooved slab and an upper laminating layer; due to the groove shape and the large load of the large-span large-load prestressed grooved laminated slab, the application requirement of an underground parking garage is met; due to the large span, parking spaces are saved; due to the grooved narrow slab surface, the cost and the story height are saved; and due to the suitable rib height, not only can the load requirement be met, but also the requirement for opening an air duct on a rib can be met, the story height is not increased and the grooved transverse air duct is easy to connect. When the large-span large-load prestressed grooved laminated slab is used at the top of an underground parking garage slab, the construction period can be quickened, the story height is reduced, the cost is reduced, column grids are saved, the parking spaces are increased, and the grade of the underground parking garage is improved.

Description

technical field [0001] The invention belongs to the field of building materials, and relates to a reinforced concrete laminated load-bearing member, in particular to a large-span and large-load prestressed groove-shaped laminated slab topped with soil and used for a basement slab top running a fire truck. 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. [0003] At present, in the construction of underground garages and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H6/00E04B7/20
Inventor 柳忠林
Owner QINGDAO JINCHAO SPECIAL CONCRETE PROD
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