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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 the civil air defense basement to simplify the building structure, save construction period, save cost, save land, especially Save excavation area or save parking space, improve the grade of underground garage and air defense basement

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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Embodiment Construction

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

[0013] as the picture shows:

[0014] The present invention is in the shape of a trough, with a span of 12-22 meters, a plate width of about 1.2m, a plate height of about 0.9m, and a load capacity of 3-9T / m 2 Between, there are overlap marks or reserved exposed steel bars on the board surface. 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 fan duct, holes can be opened at the above positions on the ribs, and the joints of the holes between the two plates can be filled around it to form a horizontal ventilation channel, and the two ribs can be sealed 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...

Claims

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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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