Title:
プレキャストＰＣ床版
Document Type and Number:
Japanese Patent JP7317663
Kind Code:
B2
Abstract:
To provide a precast PC floor slab in which end part processing of a tension member is easy, an end part of the tension member does not become structurally defect, and is continuously and integrally formed up to a ground covering part.SOLUTION: A precast PC floor slab 1, in which a tension member (PC steel member 4) is tensioned in a floor slab 2 to introduce prestress, includes: a plate-shaped floor slab 2; and a ground covering part 3 formed along an edge of the floor slab part 2. The tension member (PC steel member 4) is inserted through the floor slab 2 until it extends over the ground covering 3. The floor slab part 2 and the ground covering part 3 are integrally formed without joints. A counterbore hole 34 for sealing an end part of the tension member (PC steel member 4) is formed on the ground covering part 3 by making an opening on an outer surface 3a of the ground covering part. The counterbore hole 34 has an outer constriction shape in which the opening area decreases toward the outside.SELECTED DRAWING: Figure 2
Inventors:
Tatsuo Ogata
Takayuki Matsui
Kenichi Takahashi
Akio Shoji
Daisaku Takemoto
Masashi Kamezaki
Takayuki Matsui
Kenichi Takahashi
Akio Shoji
Daisaku Takemoto
Masashi Kamezaki
Application Number:
JP2019193604A
Publication Date:
July 31, 2023
Filing Date:
October 24, 2019
Export Citation:
Assignee:
West Japan Expressway Co., Ltd.
Oriental Shiraishi Co., Ltd.
Oriental Shiraishi Co., Ltd.
International Classes:
E01D19/12
Domestic Patent References:
| JP2019015062A | ||||
| JP57061146A | ||||
| JP9235827A | ||||
| JP60008318U |
Attorney, Agent or Firm:
Yasuhiko Moto
Shigeki Maejo
Shigeki Maejo