CONSTRUCTION METHOD OF CONCRETE FLOOR SLAB OF COMPOSITE FLOOR SLAB BRIDGE, AND FORM STRUCTURE

• Main Authors: HARA NATSUO, KAMIMURA AKIHIRO, KANDA KIYOUTAROU, KOBAYASHI HIROYUKI, AKASAKA YUJI
• Format: Patent
• Language: English
• Published: 11.05.2006
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

PROBLEM TO BE SOLVED: To provide a method of constructing a concrete floor slab of a hollow type composite floor slab bridge, and a form structure for use in the method. SOLUTION: This hollow type composite floor slab bridge comprises juxtaposed main girders of T-shaped steel, a bottom steel plate 4 which is mounted between lower end surfaces of webs 2 of the main girders 1, and the concrete floor slab 9 wherein upper parts of the flange section 3 and web 2 of the main girder 1 are embedded. In the composite floor slab bridge, a space is provided between the floor slab 9 and the steel plate 4. In this method for constructing the floor slab 9 of the hollow type composite floor slab bridge, an angle 6 is mounted on a height-direction intermediate part of the web 2 of the main girder 1 via a bolt and the like 5 along the longitudinal direction of the main girder 1; a beam material 7 is laid in a suspended state between the angle 6 and an angle 6 which is attached to the web 2 facing the main girder 1 arranged adjacently to the angle 6; form plywood 8 is laid on the beam material; concrete 9 is placed on the form plywood 8; after the concrete 9 is hardened, the bolt and the like 5 are detached; and the angle 6, the beam material 7 and the form plywood 8 are removed. COPYRIGHT: (C)2006,JPO&NCIPI