SOUND ABSORBING PANEL UNDER ELEVATED BRIDGE

摘要

PROBLEM TO BE SOLVED: To provide a sound absorbing panel under an elevated bridge desirable in an environmental problem, with excellent durability and workability.;SOLUTION: This panel is provided with a reinforced structure 5 constituted of many longitudinal reinforcing bars 2, 2, etc., arranged in the vertical direction and horizontal direction, many web reinforcing bars 3, 3, etc., bent into triangular wave shapes so as to connect and fix the longitudinal reinforcing bars 2, 2 of the vertical direction and many lateral reinforcing bars 4, 4, etc., arranged to cross the longitudinal bars 2, 2. In a triangular pole shaped space parts 6, 6, etc., formed in the horizontal direction by the web reinforcing bars 3, 3, etc., of the reinforced structure 5, porous V-metallic plates 10, 10, etc., sintering and forming metallic powder and grain materials of substantially V-shaped cross section are installed. An upper surface of the reinforced structure 5 is covered with a planar porous flat metallic plate 11.;COPYRIGHT: (C)2002,JPO