| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sound insulating wall for an expansion/contraction section, which has a structure enabling the sound-insulating wall itself to be expanded/contracted depending on the expansion/contraction of a bridge section. <P>SOLUTION: In this sound insulating wall for the expansion/contraction section of the bridge section, an expansion joint section T of the bridge section is positioned between H-shaped cross-section supports 1 and 1 which are erected at each predetermined interval in the longitudinal direction of the bridge section; and a plurality of vertical steps of sound insulating panels are mounted between the supports 1 and 1 adjacent to each other with the joint section T in between. The sound insulating panel is composed of three panel members which are connected together in such a manner as to be mutually expandable/contractible and slidable in the longitudinal direction of the bridge section; the two panel members on both sides are fixed to the adjacent panel members 1 and 1, respectively; and the intermediate panel member is slidably supported on both the panel members. <P>COPYRIGHT: (C)2007,JPO&INPIT |
