Bed board installation method

By using intermediary members to support rails between deck slabs and support beams, the method addresses the restriction of rail placement, improving flexibility and structural integrity in bridge deck slab installations.

JP7870193B2Active Publication Date: 2026-06-04KAJIMA CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
KAJIMA CORP
Filing Date
2022-05-24
Publication Date
2026-06-04

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Patent Text Reader

Abstract

To improve the degree of freedom of rail laying.SOLUTION: A floor slab erection method in a bridge is a method of installing a precast concrete floor slab 2 adjacent in the extending direction on a plurality of main girders 1 (1a, 1b) extending in the bridge axis direction with an interval between them in the direction perpendicular to the bridge axis. This method includes: interposing an intervening member 4 (4a, 4b) between the installed floor slab 2 and a receiving beam 3 disposed above the floor slab 2 and extending in a direction perpendicular to the bridge axis; and laying rails 5, 6 (5a, 5b, 6a, 6b) by supporting the main girder 1 (1a, 1b) through the receiving beam 3, the intervening member 4 (4a, 4b), and the installed floor slab 2.SELECTED DRAWING: Figure 4
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