STEEL FLOOR SLAB STRUCTURE

PROBLEM TO BE SOLVED: To provide a steel floor slab structure with its work efficiency and construction period shortened by eliminating division of a welding line. SOLUTION: A steel floor slab 200 has main girders 1 parallel to the bridge axis indicated by an arrow, lateral ribs 2 (the welding line...

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Bibliographic Details
Main Authors KAWABATA ATSUTAKA, YAMAMOTO YASUMIKI, YAKABE AKIRA, EZAKI MASAHIRO, ODAKA TOMOYUKI
Format Patent
LanguageEnglish
Published 10.05.2007
Subjects
ASSEMBLY OF BRIDGES
CONSTRUCTION OF BRIDGES
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
FIXED CONSTRUCTIONS
OR VIADUCTS
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Summary:PROBLEM TO BE SOLVED: To provide a steel floor slab structure with its work efficiency and construction period shortened by eliminating division of a welding line. SOLUTION: A steel floor slab 200 has main girders 1 parallel to the bridge axis indicated by an arrow, lateral ribs 2 (the welding line W12) orthogonal to the main girders 1 and joined to the main girders 1, longitudinal ribs 3 supported by the lateral ribs 2, a deck plate 4 (the welding lines W14 and W34) having the under surface side joined to the main girders 1 and the longitudinal ribs 3 and pavement 5 arranged on an upper surface of the deck plate 4. A flange 31 of the longitudinal rib 3 of a cross-sectional L shape abuts on an upper flange 21 of the lateral rib 2 of a cross-sectional H shape, and a reinforcing rib 7 is arranged (the welding lines W71 and W72) by straddling the upper flange 21 of the lateral rib 2 and a web 22, and the reinforcing rib 7 is arranged in about the same phase as the longitudinal rib 3, and relieves stress concentration of an abutting part of the longitudinal rib 3 and the lateral rib 2. The upper flange 21 of the lateral rib 2 and the flange 31 of the longitudinal rib 3 are mechanically joined. COPYRIGHT: (C)2007,JPO&INPIT
Bibliography:Application Number: JP20050303588