COMPOSITE FLOOR BOARD - HITACHI SHIPBUILDING ENG CO

Title:

COMPOSITE FLOOR BOARD

Document Type and Number:

Japanese Patent JP2002004221

Kind Code:

A

Abstract:

To solve the problem existing in a conventional composite floor board.

A composite is made in a projection curve directing a reinforcing material 13a upward positioned between main girders 1 out of the reinforcing materials 13a, 13b positioned in the orthogonal direction of a bridge shaft for a bottom steel plate 12. A space 18 is formed between the bottom steel plate 12 and the reinforcing material 13a. A stud is provided on the bottom steel plate 12. Compression stress mainly acts in concrete placed in a state that the space is formed between the bottom steel plate and the reinforcing material by securing rigidity by a tie arch in which the reinforcing material is an arch part and the bottom steel plate is a tie part (tendon) by making a main girder flange a support point, and cracks are difficult to produce on a concrete floor board. In addition, the problem of stud fatigue breakage in which the stud is taken from the bottom steel plate by shearing force acting between concrete and the bottom steel plate like a general composite floor board, for instance, by vehicle load hardly produces.

Inventors:

IWATA SETSUO
MATSUNO SUSUMU
YASUDA KAZUHIRO

Application Number:

JP2000189295A

Publication Date:

January 09, 2002

Filing Date:

June 23, 2000

Export Citation:

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Assignee:

HITACHI SHIPBUILDING ENG CO

International Classes:

E01D19/12; E04B5/32; E04B5/40; E04B5/43; E01D101/00; (IPC1-7): E01D19/12; E04B5/32; E04B5/40; E04B5/43

Attorney, Agent or Firm:

Mizogami Miyoshi (1 person outside)

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