Title:
合成スラブの設計方法
Document Type and Number:
Japanese Patent JP7475777
Kind Code:
B2
Abstract:
To provide a composite slab wherein, if the thickness of the mountain-top concrete is made higher than the current 100 mm, the performance of the composite slab can be enhanced by the increased height.SOLUTION: There is provided a composite slab with an inverted end closed deck plate, in which the mountain-top concrete thickness H mm satisfies the following equations (1) and (2) when the cross-sectional area per 1000 mm width of the deck plate is S mm2. (1) H=S/(α,r)-d, (2) 2≤α≤2×1.1, provided that r=the ratio of the tensile reinforcement of the part that receives the maximum bending moment under long-term load of the reinforced concrete beam, d=average concrete thickness (mm) in the deck plate height region. This structure can enhance the cross-sectional performance as the composite slab and will reduce cracking as well as increase the live load bearing ability.SELECTED DRAWING: Figure 3
Inventors:
Ryo Ishimaru
Ichiro Akamaru
Ichiro Akamaru
Application Number:
JP2020065669A
Publication Date:
April 30, 2024
Filing Date:
April 01, 2020
Export Citation:
Assignee:
Nittetsu Building Materials Co., Ltd.
International Classes:
E04B5/40; B21D47/00
Domestic Patent References:
| JP57002914U | ||||
| JP52036817A | ||||
| JP5311794A |
Attorney, Agent or Firm:
Takao Osashima
Yukihiko Kagawa
Yukihiko Kagawa