Title:
ONE-WAY PRECAST HOLLOW SLAB HAVING GRADUALLY VARYING CROSS SECTION FOR LAMINATED SLAB OF AGGLOMERATION BUILDING
Document Type and Number:
WIPO Patent Application WO/2020/125378
Kind Code:
A1
Abstract:
A one-way precast hollow slab having gradually varying cross section for a laminated slab of an agglomeration building relates to the technical field of prefabricated buildings. The present invention solves the problems of a large usage quantity of cast-in-place concrete laminated layers required by precast slabs for a laminated slab, a need to provide a support during construction, and unreasonable stress. The one-way precast hollow slab comprises a midspan area and support areas located at both ends of the midspan area; the bottom surface of the midspan area and the bottom surfaces of the support areas are located on the same horizontal plane, and the thickness of the support areas is less than that of the midspan area; a plurality of through holes is formed in the midspan area of the hollow slab in the span direction thereof by machining; the top surface of each support area is provided with a plurality of first through grooves in the span direction of the midspan area; a plurality of U-shaped grooves are formed in the two ends of the upper part of the midspan area by machining, respectively; the open ends of the U-shaped grooves are located at the two ends of the midspan area in the span direction, respectively; the plurality of U-shaped grooves is evenly distributed, and the lower parts of the U-shaped grooves communicate with the through holes.
Inventors:
WANG FENGLAI (CN)
Application Number:
PCT/CN2019/121991
Publication Date:
June 25, 2020
Filing Date:
November 29, 2019
Export Citation:
Assignee:
HARBIN DACHENG GREEN BUILDING TECH DEVELOPMENT CO LTD (CN)
International Classes:
E04B5/38; E04C2/06; E04C2/30
Foreign References:
| CN209339419U | 2019-09-03 | |||
| CN209353552U | 2019-09-06 | |||
| CN109629729A | 2019-04-16 | |||
| CN109440991A | 2019-03-08 | |||
| CN107023103A | 2017-08-08 | |||
| CN204401844U | 2015-06-17 | |||
| CN205557951U | 2016-09-07 | |||
| CN206457973U | 2017-09-01 | |||
| DE102015200661A1 | 2016-07-21 |
Attorney, Agent or Firm:
HARBIN SHINEIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF: