Large-span and large-load prestressed trough-shaped composite slab used as the roof of civil air defense basement

A basement roof and large-span technology, applied in the direction of floor slabs, artificial islands, underwater structures, etc.

Pending Publication Date: 2011-12-21
柳忠林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to aim at the above problems of the current civil air defense basement and garage, to provide a large-span and large-load prestressed groove-shaped laminated plate used as the roof of th

Method used

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  • Large-span and large-load prestressed trough-shaped composite slab used as the roof of civil air defense basement
  • Large-span and large-load prestressed trough-shaped composite slab used as the roof of civil air defense basement

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[0012] The present invention will be further described below in conjunction with the drawings.

[0013] as the picture shows:

[0014] The invention has a trough shape with a span of 12-22 meters, a board width of about 1.2m, a board height of about 0.9m, and a load bearing of 3-9T / m 2 Between, there are overlap marks on the board surface or reserved exposed steel bars. Use conventional methods to pour columns and L beams, break the slab on the L beam, make a cast-in-place layer on it, and pour the slab joints. If you need to make a fan duct, you can open a hole on the rib as described above, and fill the joint around the hole between the two plates to form a horizontal ventilation channel, and seal the two ribs to form a longitudinal ventilation channel.

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Abstract

The invention discloses a large-span prestressed groove-shaped laminated plate used as the top plate of a civil air defense basement. In the short range of a few seconds or tens of seconds, there are both wave compression and wave absorption, and the deformation ability and deformation recovery ability of this kind of component are much better under external nuclear explosion, that is, under static loading; ③ remove the large The flange of the load-bearing double T plate becomes a groove shape, which can withstand greater loads, reduce the height of the bottom section, reduce the cost, and it is easy to form a complete section height and shape with its own ventilation channel, and the prestressed large span saves steel bars and saves Pillars, thereby saving the parking area, the same area increases 10%∽20% of the parking space or saves 10%∽20% of the excavation area compared with the traditional method.

Description

technical field [0001] The invention belongs to the field of building materials, and relates to a reinforced concrete laminated bearing member, in particular to a large-span and large-load prestressed groove-shaped laminated plate used as the top plate of a civil air defense basement. 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, large span and small load (300Kg / m 2 -1000Kg / m 2 ) Prestressed con...

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Application Information

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IPC IPC(8): E04B5/04E04B1/342E04B5/48E02D29/045
Inventor 柳忠林
Owner 柳忠林
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