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Big-span and big-load prestress trough-shaped laminated plate used as 6-level civil air defence basement roof plate

A basement roof and prestressing technology, which is applied in the field of building materials, can solve the problems of low space utilization, long construction period, and small number of parking spaces, and achieve the effects of reducing floor height, saving costs, and improving resistance

Active Publication Date: 2012-01-04
QINGDAO JINCHAO SPECIAL CONCRETE PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, in the construction of civil air defense basements and garages of level 6 and below, there are column nets of about 8 meters x 8 meters or 8 meters x 6 meters. The quantity is small and not beautiful

Method used

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  • Big-span and big-load prestress trough-shaped laminated plate used as 6-level civil air defence basement roof plate
  • Big-span and big-load prestress trough-shaped laminated plate used as 6-level civil air defence basement roof plate
  • Big-span and big-load prestress trough-shaped laminated plate used as 6-level civil air defence basement roof plate

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Embodiment Construction

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

[0014] Such as figure 1 As shown, the present invention is trough-shaped, with a span of 16.8 meters, a plate width of 1.2m, a rib height of about 0.9m, and a load capacity of 7T / m 2 , There are superimposed marks or reserved exposed steel bars on the board surface. Such as figure 2 As shown, place the groove-shaped plate with two ribs 1 on the lower beam of the L beam, and the gap 2 coincides with the lower beam of the L beam, so that the story height of the building occupied by the lower beam part of the L beam is 0. Make a cast-in-place layer on top, and fill the board 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 big-span and big-load prestress trough-shaped laminated plate used as a 6-level civil air defence basement roof plate, which is characterized in that a functional member is formed by the trough-shaped laminated plate with big span, big load, narrow plate width and high low-rib together with an upper laminated layer. The resistance of the member is improved under the action of short-term effects of nuclear explosion shock waves by using the elastoplastic deformation resilience characteristic coefficient of a prestress plate, therefore, many materials are saved, and the story height is also saved. The invention has the advantages that: the big trough-shaped load meets the use requirement of an underground garage; the big span design ensures more parking spaces; thenarrow trough-shaped plate surface saves the cost and the story height; the moderate rib height meets the requirements of loading and opening of an air duct on a rib, the story height is not increased, and a trough-shaped transverse air duct is easily connected. Because the big-span and big-load prestress trough-shaped laminated plate used as the 6-level civil air defence basement roof plate is utilized on an underground garage roof plate, the construction period can be accelerated, the story height can be decreased, the cost can be lowered, column grids 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 trough used as a 6-level anti-basement roof or a basement slab top with soil covering and running a fire truck Plywood. 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] However, at present, in the constructio...

Claims

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Application Information

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IPC IPC(8): E02D29/045E04H6/00E04B7/20E04B1/342
Inventor 柳忠林
Owner QINGDAO JINCHAO SPECIAL CONCRETE PROD
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