STEEL FLOOR SLAB STRUCTURE

• Main Authors: KAWABATA ATSUTAKA, YAMAMOTO YASUMIKI, YAKABE AKIRA, EZAKI MASAHIRO, ODAKA TOMOYUKI
• Format: Patent
• Language: English
• Published: 10.05.2007
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

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