Title:
FIXING STRUCTURE FOR CONCRETE ROOF OF HOLLOW UNDERGROUND STRUCTURE
Document Type and Number:
Japanese Patent JP2018016998
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To enhance strength of a connection between a precast concrete cover and an underground structure, while reducing a number of man-hour and work time at a site.SOLUTION: A fixing structure for a concrete roof of a hollow underground structure includes: an underground structural body 11 with an open top side; a precast concrete roof 12 for closing the open part on the top side; stepped roof receiving parts 20a, 20b, 21a, 21b on a peripheral edge of the opening part on the top side of the body 11; mortar 26 filled between the body 11 and the roof 12; a jaw part on two surfaces on a periphery of the roof 12 that are parallel to each other, formed by projecting a bottom half of the surfaces outward; recessed grooves 24a, 24b formed on a lower half side of a top jaw part 22 on outside of the roof receiving part of the body 11 that corresponds to the two surfaces, the recessed grooves having a tip of the jaw part of the roof 12 inserted thereinto respectively; and mortar filled in a gap between the roof receiving part and the roof, including inside the recessed groove, while a tip part of both jaw parts 33a, 33b are respectively inserted into the recessed groove of the roof receiving part.SELECTED DRAWING: Figure 4
Inventors:
YAHAGI TAMOTSU
Application Number:
JP2016147295A
Publication Date:
February 01, 2018
Filing Date:
July 27, 2016
Export Citation:
Assignee:
YAHAGI CONCRETE IND CO LTD
International Classes:
E02B9/06; E02F5/10; E03F5/02; F16L1/038; H02G9/10
Attorney, Agent or Firm:
Rita Ishii
Masao Tanaka
Masao Tanaka
Previous Patent: Aeration structure of a building
Next Patent: A ceiling support material and ceiling makeup structure
Next Patent: A ceiling support material and ceiling makeup structure