SOUND-ABSORBING SYSTEM FUNCTIONING ALSO AS SCAFFOLD IN COMBINATION ON ELEVATED-ROAD REAR SIDE AND SOUND-ABSORBING MEMBER USED THEREFOR - Nippon Steel Construction Materials Co., Ltd.

Title:

SOUND-ABSORBING SYSTEM FUNCTIONING ALSO AS SCAFFOLD IN COMBINATION ON ELEVATED-ROAD REAR SIDE AND SOUND-ABSORBING MEMBER USED THEREFOR

Document Type and Number:

Japanese Patent JP3488966

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To improve sound-absorbing performance by arranging beam materials at the places of both corners of a sound-absorbing member, installing scaffolding boards onto the top faces of the beam materials, housing a sound-absorbing material in a void surrounded by the beam materials, the scaffolding boards and an exterior facing material and forming a gap between the sound-absorbing material and the exterior facing material.
SOLUTION: A sound-absorbing member 4 is laid on a beam hung down from a main girder in a surface shape in the horizontal direction, beam materials 5, 5 in length extending over overall length in the longidutinal direction are arranged at the places of both corners and a beam material 5' at a central section, and scaffolding boards 6 by perforated boards are mounted on the top faces of each beam material 5, 5'. An exterior facing board 7 molded in an approximately semicircular downward shape is installed on the lower sides of the beam materials 5, 5, a sound-absorbing material 8 is housed in a void surrounded by the beam materials 5, 5', the scaffolding boards 6 and the exterior facing material 7, and a gap G excellent in a sound-absorbing effect is formed between the sound-absorbing material 8 and the exterior facing material 7. Accordingly, since the perforated boards are used as the scaffolding boards 6, reflected sounds from the rear of an elevated road and noises generated from travelling cars on the elevated road and transmitted to the rear side can be absorbed.

Inventors:

Yasuo Hashii
Makoto Miki
Kawai Hidetoshi
Toya Junji

Application Number:

JP21445296A

Publication Date:

January 19, 2004

Filing Date:

August 14, 1996

Export Citation:

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Assignee:

Nippon Steel Construction Materials Co., Ltd.

International Classes:

E01F8/00; E01D21/00; E01F8/02; E01D101/00; (IPC1-7): E01D21/00; E01F8/00

Domestic Patent References:

JP9316831A
JP978528A
JP9132904A
JP9158115A
JP988013A
JP9316823A

Attorney, Agent or Firm:

Masahiko Yamana

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