Parklands 的自行车桥
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鳗鱼迁徙催生了闪闪发光的蜿蜒桥梁设计
这座桥的动态表现让人注意到鳗鱼令人难以置信的古老迁徙以繁殖，这是当地达拉瓦尔人传统的一个重要方面。*他们的旅程将鳗鱼从公园的池塘中带走，穿过雨水渠和运河， 滑行和蠕动陆路到植物学湾的咸水，然后到数千公里外新喀里多尼亚附近的产卵场。
桥的蜿蜒曲线形状让人想起鳗鱼的运动，鳗鱼通过身体的横向运动慢慢游动。 当它们移动时，它们会闪烁。
桥的栏杆由不同颜色的阳极氧化铝制成，在中心呈扇形展开，与鳗鱼的骨骼结构和活力相呼应。 它们在阳光下闪闪发光，在水面上反射，就像鳗鱼的银色下腹部。 颜色被选择用于伪装和运动。
“这座 40 米长的桥轻轻地坐落在一个池塘系统之上，既是一个标志性的入口，又与自然环境和谐地融为一体。 通往公园的其他门户都反映了欧洲人的情感，但我们的设计是为了纪念几个世纪以来的土著文化。 它还参考了公园现有基础设施的物质性和颜色，”他说。
这座新的无障碍通道取代了一座破旧且无法通行的人行天桥。 它将公园与新的轻轨站、更广泛的步行/自行车网络和周边郊区连接起来。
“这种与备受喜爱的公园的现代联系也将环境价值置于设计的核心。 它保护河岸免受侵蚀，保护濒危物种的栖息地，并为游客提供直接参与池塘生态系统的机会。”
桥在中央加宽形成一个观景台，一个休息的地方，让行人停下来欣赏水生和鸟类的生活，以及植物群，如濒危的山龙眼灌木和本地草。
精心挑选的材料具有维护成本低、耐用和 100% 可回收性的特点。 当地的斑点胶用于扶手和路缘石，砂岩用于铺路和挡土块。 桥面板选用了轻质、防滑的玻璃纤维增强塑料网 (FRP)。 阳极氧化铝栏杆因其颜色、光泽、色牢度和 100% 可回收性而被选中。 涂漆钢上层结构也是 100% 可回收的。
为了尽量减少对池塘生态系统的干扰，只将三根桩打入池塘床。 每个桩的四叉十字形钢结构支撑桥梁，并提供横向和纵向稳定性。
为了确保准确性并最大程度地减少浪费，整个结构和栏杆在场外组装并在现场重新组装。 3D 车间图纸确保了每个连接和组件在制造前的准确性。
该项目的第二阶段将提供解释和寻路，标志着通往公园的重要门户。
Eel migration spawns shimmering sinuous bridge design The dynamic expression of the bridge draws attention to the incredible and ancient migration of the eel to reproduce, an important aspect of the local Dharawal people’s traditions.* Their journey takes the eels from the park’s ponds, slipping through storm-water drains and canals and sliding and wriggling overland to the salt water at Botany Bay, and then to spawning grounds near New Caledonia thousands of kilometres away.
The sinuous curved shape of the bridge recalls the movement of the eels which swim slowly by means of lateral movements of the body. As they move, they shimmer.
The bridge’s railings are made of different coloured anodised aluminium fanning out at the centre, echoing the skeletal structure and dynamism of the eel. They shimmer in the sunlight, reflect off the surface of the water, just like the eels’ silvery underbelly. Colours were selected for camouflage and movement.
“The 40 metre long bridge sits lightly above a pond system, making an iconic entrance but also sitting harmoniously within the natural environment. Other gateways to the park all reflect European sensibilities but our design commemorates centuries of Indigenous culture. And it also references the materiality and colours of the park’s existing infrastructure,” he said.
This new accessible gateway replaces a decaying and inaccessible pedestrian bridge. It connects the park to a new light rail station, broader pedestrian/cycle networks and surrounding suburbs. “This contemporary connection to the much-loved park also has environmental values at the heart of the design. It protects banks from erosion, preserves habitat for endangered species, and provides visitors with an opportunity to directly engage with the pond ecosystem.”
The bridge widens at the centre to form a viewing platform, a place of repose, allowing pedestrians to pause and appreciate the aquatic and bird life, and flora, such as endangered banksia scrubs and native grasses. Materials were carefully chosen for their low maintenance, durability, and 100% recyclability. Local spotted gum is used for handrails and kerbs, sandstone for paving and retaining blocks. Lightweight, non-slip fibreglass reinforced plastic mesh (FRP) was selected for the bridge deck. The anodised aluminium balustrade was chosen for its colour, sheen, colourfastness, and 100% recyclability. The painted steel super-structure is also 100% recyclable. To minimise disturbance to the pond ecosystem just three piles were driven into the pond-bed. A four prong cruciform steel structure from each pile supports the bridge and provides both lateral and longitudinal stability.
To ensure accuracy and minimise waste the entire structure and balustrade was assembled offsite and reassembled on site. 3D shop drawings ensured accuracy of each connection and component prior to fabrication.
A second stage of the project will provide interpretation and way finding, marking this important gateway to the Parklands.
