GRID-LIKE FLOOR SLAB FOR BRIDGE

摘要

PROBLEM TO BE SOLVED: To provide a grid-like floor slab of two-layer structure for a bridge reducing sound and vibration generated from the floor slab during the travel of vehicles without impairing original characteristics of the grid-like floor slab of two-layer structure. SOLUTION: (1) The grid-like floor slab of two-layer structure for the bridge having a grid-like member as an upper layer and support structural beams as a lower layer to support the grid-like member, is characterized in that a cushioning material is held between the grid-like member and the support structural beams. (2) The grid-like floor slab of two-layer structure for the bridge is characterized in that blocks formed of elastic bodies or viscoelastic bodies are held between constitutive members of the support structural beams in the lower layer. (3) The grid-like floor slab of two-layer structure for the bridge is characterized by the fastening structure of the lower layer and upper layer. COPYRIGHT: (C)2005,JPO&NCIPI