REPAIRING AND REINFORCING METHOD FOR STEEL STRUCTURE

Japanese Patent JP3930799

B2

PROBLEM TO BE SOLVED: To provide a repairing and reinforcing method for a steel structure reducing the number of bored bolt holes to reduce a repair cost and to enhance the degree of freedom in repairing design and moreover preventing the delayed fracture of a high strength bolt.
SOLUTION: In the repairing and reinforcing method for the steel structure for repairing and reinforcing the steel structure 12 by disposing a repairing and reinforcing steel plate 15 over steel plates 13, 14 of the steel structure 12 and carrying out the bearing joining of these steel plates with a drive type high-strength bolt inserted through the steel plates, the drive type high-strength bolt 9 with tensile strength refined into a range of 1,200 to 1,600N/mm2 is used, and the bearing joining lowers the tension loaded to the drive type high strength bolt 9, to the stress of standard bolt tension of B10T or less.

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Tomonori Tominaga
Takagi

JP2002339839A

June 13, 2007

November 22, 2002

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Nippon Steel Corporation

E01D22/00; E04G23/02; (IPC1-7): E04G23/02; E01D22/00

JP2002276637A

Nobuyuki Hayashi
Takehiko Katayose
Toshihide Mori

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