Large-span prestressed trough composite slab used as roof of basement

A basement roof and large-span technology, applied to roofs, underwater structures, buildings where cars are parked, etc.

Inactive Publication Date: 2012-10-31
柳忠林
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

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  • Large-span prestressed trough composite slab used as roof of basement

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] as the picture shows:

[0013] The present invention is a groove-shaped laminated slab with a span of 12-22 meters, a slab width of about 1.2m, a slab height of about 0.9m, and a bearing capacity of 3-9T / m 2 In between, there may be overlapping marks or reserved exposed steel bars on the surface of the board. 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. Use the conventional method to pour the columns and L beams, break the slab on the L beams, make a cast-in-situ layer on it, and fill the slab joints. If it is necessary to make a f...

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Abstract

The invention discloses a large-span prestressed trough composite slab used as a roof of a basement. The large-span prestressed trough composite slab is characterized in that: the large-span prestressed trough composite slab is a trough slab in the appearance, and the large-span prestressed trough composite slab and an upper composite layer form a functional component. The trough large load meets the use requirements of underground garages; the large span saves parking spaces; the trough narrow slab surface saves the cost and the floor height; the moderate rib height can meet the requirement on load bearing, and the requirement that air channels are formed on the ribs, and does not increase the floor height; and the trough transverse air channels are easy to connect. The large-span prestressed trough composite slab is used on the roofs of the underground garages, can quicken the construction period, reduces the floor height and the cost, saves column grids, increases the parking spaces and improves the level of the underground garages.

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): E02D29/045E04H6/00E04B7/20E04B1/342
Inventor 柳忠林
Owner 柳忠林
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