Title:
コンクリート床パネル
Document Type and Number:
Japanese Patent JP7457532
Kind Code:
B2
Abstract:
To increase the bending strength of the concrete panel (concrete floor panel) used as a floor slab.SOLUTION: A concrete floor panel 10 has a rectangular parallelepiped shape in which the areas of a front surface 13 and a back surface 14 are larger than those of the side surfaces, and a square CFRP grid bar 20 is embedded parallel to the back surface 14 at a location near the back surface 14 of the concrete floor panel 10. The CFRP grid bar 20 includes a plurality of rods obtained by impregnating a high-strength fiber bundle in which a plurality of long high-strength fibers are bundled with a thermosetting resin or a thermoplastic resin and curing the fiber bundle. The rods comprise a plurality of vertical rods arranged parallel to each other and spaced apart from each other and a plurality of lateral rods intersecting the vertical rods and arranged parallel to each other and spaced apart from each other, and each of the plurality of vertical rods and each of the plurality of lateral rods are woven.SELECTED DRAWING: Figure 1
Inventors:
Hironobu Fujita
Shinichiro Yoshida
Shunji Tsugou
Masaki Ono
Takayuki Okeno
Shinichiro Yoshida
Shunji Tsugou
Masaki Ono
Takayuki Okeno
Application Number:
JP2020033273A
Publication Date:
March 28, 2024
Filing Date:
February 28, 2020
Export Citation:
Assignee:
Nippon Kogyo Co., Ltd.
Tokyo Rope Co., Ltd.
Tokyo Rope Co., Ltd.
International Classes:
E04F15/024; B28B23/02; E04B5/02; E04C2/06; E04C5/04; E04C5/07; E04F15/08
Domestic Patent References:
JP4013088U | ||||
JP2013099874A | ||||
JP63197750A | ||||
JP2005307448A | ||||
JP10008722A | ||||
JP47000267Y1 | ||||
JP7353214B2 |
Attorney, Agent or Firm:
Patent Attorney Corporation Tokyo UIT International Patent