Newsletter 高速鐵路簡訊 . 交通部高速鐵路工程局
機場捷運高架橋隔音牆設計形式簡介 Introduction to the Noise Barrier Walls of TIAA MRT Viaducts
泰山貴和站(A6)往體育大學站(A7)間施作中之隔音牆。

機場捷運高架橋段裝設隔音牆設計理念,必須兼顧造型與環境景觀協調性、列車駕駛員視覺舒適性並能確保環境安寧及遭受風雨侵襲時列車行進動線之安全性為考量因素,同時考量橋梁荷重及施工方便性,由以上條件經評估後,以下部金屬鈑搭配上部透明板之混合式之隔音牆最為合適,緊鄰密集住宅區之路線段則採用全罩式框架之混合式隔音牆系統,並選擇較隔音牆所要達到的減音功能高出30分貝的材質,以確保噪音阻絕性能。
隔音牆於結構設計階段應兼顧維護都市景觀及施工方便性,將美學與力學融合納入細部設計。此外為確保隔音牆系統能在嚴峻的風雨環境氣候下,安全無虞的在高架橋上執行其隔絕列車行駛噪音之任務,作用於隔音牆系統之設計結構重量應依實際使用之型式而且以不小於120kgf/m2(1.2KN/m2)為設計基準,隔音牆系統牆面所承受風壓應採390kgf/m2為設計基準;另外於高架橋設計時應考慮由隔音牆之錨定點所傳遞之作用力,以確保隔音牆結構之穩定性。

The designing elements for the noise barrier walls of the TIAA MRT viaducts must take into account the coordination with surrounding landscape, the driver’s visual comfort, peaceful environment, route security under rain and strong wind, viaduct loading and construction convenience. Taking the above factors into assessment, the most suitable material is the metal-transparent hybrid noise barrier walls. The HSR segments adjacent to dense residential areas adopted the full-frame hybrid wall system and chose the material with sound reducing capabilities of 30 dB more than the general noise barrier walls to ensure soundproof performance.
The structural design of the walls should protect urban landscape and construction convenience and meanwhile, combine aesthetics and mechanics into structural details. In addition, in order to fulfill noise-barrier functions and safety criteria under extreme weather, its loading criteria took into account the actual loading and should not be lower than 120kgf/m2(1.2KN/m2); the wind pressure capacity standard was set at 390kgf/m2. Furthermore, the force generated via the anchor points of the noise barrier walls should be taken into consideration to ensure the stability of the structure.

  • 泰山貴和站(A6)往體育大學站(A7)間施作中之隔音牆。
  • 泰山貴和站(A6)往體育大學站(A7)間施作中之隔音牆。
  • 泰山貴和站(A6)往體育大學站(A7)間施作中之隔音牆。
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