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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Format | Patent |
Language | English |
Published |
10.05.2007
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Abstract | 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 |
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AbstractList | 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 |
Author | ODAKA TOMOYUKI KAWABATA ATSUTAKA YAKABE AKIRA YAMAMOTO YASUMIKI EZAKI MASAHIRO |
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Snippet | 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... |
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SubjectTerms | ASSEMBLY OF BRIDGES CONSTRUCTION OF BRIDGES CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES FIXED CONSTRUCTIONS OR VIADUCTS |
Title | STEEL FLOOR SLAB STRUCTURE |
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