全球設計風向感謝來自 浙江大學建築設計研究院 的公共空間項目案例分享：
蒼宇鏡廊｜湟川三峽擎天玻璃橋
Glass Bridge in Huangchuan Three Gorges Scenic Area
—A “transparent corridor” in the air
橋，是因地勢而生的建築，也是寓意連接與溝通的藝術。浙江大學建築設計研究院（UAD）在粵北連州打造的湟川三峽擎天玻璃橋，便好似生長於自然環境中的一座地標性建築，以消隱的形態和創新方法的建造，實現自然與人工的無縫銜接。
Bridge is a kind of structure built based on the terrain, and also a sort of art that symbolizes connection and communication. Located in Lianzhou, Guangdong Province, the Glass Bridge in Huangchuan Three Gorges Scenic Area created by Architectural Design & Research Institute of Zhejiang University Co., Ltd. (UAD) becomes a local landmark, which seems to “grow” from the natural environment. Through blending the structure into the natural surroundings and deploying innovative construction methods, the design team realized the seamless integration of nature and the artificial.
虛實相間 Combination of the solid and void
湟川三峽被譽為“嶺南詩畫走廊”，是珠江流域北江水係的主要支流，也是秦漢古道的盡頭，一代文豪韓愈更留下了千古絕句《宿龍宮灘》。這座玻璃懸索橋橫跨湟川三峽陡崖峭壁，縱覽粵北最大瀑布群，宛如昂首雲天的巨龍，與所在環境相融共生。
Known as the “picturesque corridor in Lingnan region”, Huangchuan Three Gorges is the main tributary of the Beijiang River system in the Pearl River Basin and the end of Qianghan Ancient Path. Han Yu, a famous poet in Tang Dynasty, once wrote a poem to depict its magnificent scenery. The suspended glass bridge spans the cliffs, and overlooks the largest cluster of waterfalls in Northern Guangdong. Like a dragon that soars into the sky, it harmoniously coexists with nature.
整座橋通體鋪裝3層4.5厘米厚度的超白夾膠鋼化玻璃，其透光率為99.15%，賦予橋麵水晶般的光澤、高清晰的亮度、超高的光折射率。搭配橋梁兩側的豎向圓弧形不鏽鋼護欄，以及橋塔和主纜醒目的中國紅，形成虛與實、現代與古典融合相間的景觀。
The bridge is paved with three layers of 4.5-centimerter-thick ultra-clear tempered laminated glass, the visible transmittance of which is 99.15%. The glazing endows the bridge deck with crystal-like luster, high transparency and refractive index. The glass, the guardrails composed of curved stainless steel bars, the bridge tower and red main cables, together form a built landscape that combines the solid and void, the modern and the classical.
因應場地 Responding to site conditions
廣東地處中國東南，夏季多台風；又因為懸索橋較大的跨度與柔性的結構體係，有著較高的抗風需求。設計過程中進行了節段風洞試驗與有限元模擬，分析橋的振動主頻與振型，並確定橋梁顫振臨界風速、合理護欄封閉程度等設計參數，為橋梁的設計優化及後續維護提供了有力支撐。
Located in the southeast of China, Guangdong is affected by frequent typhoons in summer. Besides, due to the large span and flexible structural system, this suspension bridge requires excellent wind resistance performance. Based on those considerations, the design team carried out wind tunnel testing and finite elements simulation, analyzed the main frequency and modes of vibration, and identified design parameters such as critical flutter velocity and the reasonable degree of enclosedness of guardrails, which provided strong support for optimizing the design and the maintenance of the bridge in the future.
同時，為了提高橋梁的側向穩定性和抗風性能，設計團隊在橋麵兩側采用傾斜反吊抗風拉索體係，並錨固在混凝土樁錨。另外，場地受不良岩溶地質作用和特殊性的殘積粉質粘土影響，基礎設計和施工時均需最大程度保障項目的安全性能。
Meanwhile, in order to enhance lateral sustainability and wind resistance performance of the bridge, the designers adopted an oblique wind-resistant cable system, which is fixed to concrete anchors. Moreover, considering the adverse influences that karstification and special residual silty clay exerted on the site, they tried the best to ensure the safety performance of the bridge during design and construction phases.
創新景觀 An innovative built landscape
這座空中天梯淨寬8.8 m，橋麵標高201.0m，因其526.14米的玻璃全長而加冕“最長玻璃鋪裝懸索橋”的吉尼斯世界紀錄。它的建成見證了奇跡，也吸引了大批遊客，已然成為當地新的地標建築，為那裏的旅遊發展注入新的動力。
This glass bridge is suspended at a height of 201 meters, with a width of 8.8 meters. Spanning a length of 526.14 meters, it has broken the Guinness World Records as the world’s longest suspension glass bridge. Its completion is a miracle. So far, it has become a new local landmark, and has been attracting a large number of tourists and helping inject vitality into local tourism industry.
本案以尊重土地和敬畏自然為前提，清晰的規劃定位，可續的創造力，和挑戰極限的勇氣，最終使自然環境重獲新生，成為帶動經濟的創新景觀。而關於整合自然、城市、人文，構築頂級的景觀場所，也是UAD致力研究和實踐的所在。
Based on respect to the land and nature, clear planning and positioning, creativity, and the courage to push the limits, UAD team reactivated the natural environment and produced an innovative built landscape that contributes to economic development. Creating built landscapes that integrate nature, city and culture has always been a focus of UAD’s design researches and practices.
∇ 圖紙 Design drawing
項目信息
項目名稱：連州市湟川三峽旅遊度假區景觀步行玻璃橋工程
項目地點：廣東省清遠市連州九陂鎮
設計單位：浙江大學建築設計研究院（http://www.zuadr.com/）
設計團隊：謝旭、孫良鳳、王煒龍、董偉偉、吳樸
建成時間：2020年1月
圖片&視頻版權：連州市擎天旅遊發展有限公司
Project name: Glass Bridge in Huangchuan Three Gorges Scenic Area
Location: Jiubei Town, Lianzhou, Qingyuan City, Guangdong Province, China
Design firm: The Architectural Design & Research Institute of Zhejiang University Co., Ltd. (UAD) (http://www.zuadr.com/)
Design team: Xie Xu, Sun Liangfeng, Wang Weilong, Dong Weiwei, Wu Pu
Completion time: January 2020
Photos and video: Lianzhou Qingtian Tourism Development Co., Ltd.
