Page 245 - 捷運技術 第45期

捷運技術半年刊 第45期 237

環狀線大漢溪跨越橋之規劃與設計

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鍾賢慶 張穆奎 黃怡超 于中原 4
摘 要

大漢溪是臺灣北部淡水河系三大主要支流之一，其流域涵蓋之工商業活動與水利
灌溉等功能，對於北臺灣來說甚為重要。臺北捷運環狀線DF113標規劃路線，由板橋
區跨越大漢溪至新莊區，長約6.4公里。由於路線之規劃，使得大漢溪橋之位置緊鄰於
其上游側公路總局所管轄之大漢橋，與其下游側水管橋之間。在如此受限之條件下，
其水理分析上，施工方法上，橋梁斷面幾何上，都必須審慎分析與評估，並且藉由價
值工程之方法，針對設定之機能加以分析，在幾個替代選擇中，確認一個最佳方案。
此外，在橋梁之視覺感觀上，大漢溪橋之主體結構以輕、簡、透，作為設計美學
之原則。而在近年來非常強調的節能減碳議題上，本公司設計團隊也盡其巧思，於橋
梁上設置垂直式風力發電機，作為夜間橋梁燈飾之電力來源。整體來說，大漢溪跨越
橋之設計，在滿足公共利益之需求，善盡「地球雕塑家」之責任，達成永續公共工程
的政策目標，都已做出高度之貢獻。

關鍵詞: 水理分析、價值工程、節能減碳、垂直式風力發電機

Plan and Design for Dahan Bridge on the Taipei MRT Circular Line

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Shyan-Ching Jang Mu-Kuei Chang I-Chao Huang Chung-Yuan Yu 4
Abstract
The Dahan River is one of the three major tributaries of the Tamsui River in northern
Taiwan. As its valley covers industrial, commercial, and farm areas, the Dahan River is vital
in northern Taiwan. The route of Taipei MRT Circular line Detailed Design Lot DF113 starts
from Banqiao District and runs across the Dahan River to Xinzhuang District, covering a
length of about 6.4 kilometers. The Dahan Bridge that will carry the line across the Dahan
River is located between a road bridge administered by the MOTC and a water conduit
bridge. Due to the geographic restrictions, careful evaluation has to be given to hydraulic
analyses, construction methods, and the bridge’s geometric design. In addition, extra analysis
of the design functions are performed through value engineering to select an optimal solution
from several alternatives.
Additionally, the design principles of the bridge's main structure are that it should be as
lightweight, simple, and transparent as possible. In response to the need to reduce carbon
emissions, a vertical axis wind turbine is set up on the bridge to generate power for nighttime
illumination. To sum up, the design of Dahan Bridge has made a great contribution to
meeting the public benefit and sustainable development goals of public works.

Keywords: hydraulic analysis, value engineering, reducing carbon emissions, vertical axis
wind turbine
1 亞新工程顧問公司結構工程部經理 sc.jang@maaconsultants.com
2 亞新工程顧問公司結構工程部工程師/土木技師 mk.chang@maaconsultants.com
3 臺北市政府捷運工程局土木建築設計處副工程司 ychuang@trts.dorts.gov.tw
4 臺北市政府捷運工程局土木建築設計處副工程司 cyyu@trts.dorts.gov.tw