建筑设计:HOK 事务所
Architects:Hellmuth,Obata & Kassabaum
结构设计：澳为.阿勒普事务所
Structural Engineers:Ove Arup & Partners
工程要求在现有地段上建造一个新的体育场能容纳 4000观众，其中 5％的面积（达16 000m2）在屋顶下，成为一座集运动、会议等多种功能于一体的21世纪的大型露天体育场。
建成后的体育场地处狭小的香港岛山谷中，三面环山，越过山顶看去是高耸的大楼，其中包括若干公寓。地段朝北开敞，城市和海港的景观尽收眼底。白天，太阳的漫射光可照亮观众席。夜晚，屋面透出灯光，仿佛发光的贝壳。竞技场地露天，使绿茵得以生长。在这样的自然地形中，膜屋顶的几何形和结构很能打动人心。
山谷的东西两面地形较陡，两面大的看台因势利导依山形升起。其屋顶进深 40m－ 55m，以遮盖看台。这种跨度的屋顶如用悬挑结构会导致看台非常笨重。因此，设计师考虑了新的解决方案，即纵向用240m跨度、顶部标高55m的拱形骨架支撑屋顶的前沿。事实证明，在该地段条件下，这是一种更为经济的解决办法。出于建筑方面的考虑，拱形骨架有12度的倾角，其截面为3.5m见方。
横向的三角形桥架断面3.5m高，连接屋顶前沿的拱架和后面的混凝土看台，跨度40m－55m。检修通道、放送设备及泛光灯照明都安放在这些桁架里。设计者们还做了风洞试验以研究环境的影响并确定膜的设计风压。
两个屋顶各外包5块涂敷聚四氟乙烯的玻璃纤维膜材，这种材料的传热和透明度可达到平衡，自洁能力、耐火、耐久性都很好。每块1600 m2的膜材，跨3组桁架。这些膜材四边都压紧，中间部分并没有机械地固定在桁架顶部，而是在桁架之间用一直径为 80mm的谷索压住。膜本身加有5100N的双向预张力。
该作品因布局紧凑、与地形结合得好和简洁且富有表现力的结构而受到高度赞扬，并于1995年荣获美国建筑师协会奖。
The site is in a valley on Hong Kong Island. It is surrounded on three sides by steep hillsides topped by high-rise buildings including apartment buildings. The site is open only to the north, in that direction there are views of the city and the harbor. The proposal was to create 40000 spectator seats, 75%of them covered with a roof, so as to create a stadium befitting the 21st century and capable of being used for diverse uses including sports and concerts. During the day, the diffused light brightens the spectator seats below, and at night the roof surface becomes radiant, suggesting a luminous seashell. The field is open, making it possible to grow natural grass. In this natural topography, the geometrical form and structure of the roof prove quite powerful.
The stadium is squeezed into a small valley with steeply rising ground to the east and west. Two large stands of seating rise up closely following the shape of the valley sides. To obtain the required coverage of seats, the roof has to be up to 55m wide. A cantilever type roof structure of this span would have resulted in a very heavy structure for the stand and its foundation. Therefore a solution was developed using a 240m span arch to support the front edge of each roof. This proved to be a more economic solution given the constraints of the site. For architectural reasons the arches are inclined away from each other by 12, and are in the form of 3.5m square trussed rising to 55m at their crown.
Curved secondary trusses have a triangular cross-section 3.5m deep, spanning 40-55mm between the front arch and the rear of the concrete stand. Catwalks, public address and floodlighting are supported from the framework. Wind tunnel tests were carried out to study the effects of the surrounding area and to establish pressures for the membrane design.
For each roof the PTEE coated glass fiber membrane material was fabricated into 5 large panels of approx. This kind of material was selected for the membrane-structure roof because of its balance between heat and rate of translucency, its capacity to clean itself, its incombustibility and its durability.1600m2 covering 3 bays of trusses. Similar to the San Nicola Stadium roof, the panels are held down buy clamp plates along all 4sides but not mechanically fixed to the tops of the trusses is an 80mm diameter valley cable stressed against the warped shape of the membrane panel which is itself prestressed to 510kgf/m in both direction.
Effort was made in design to take the surrounding valley into account, and to create a compact layout that might blend in with the topography and environment. The simple yet expressive structure, integrated with the environment, has been highly praised, and the work won the 1995 American institute of Architects award.
屋顶外侧
240m跨度的拱构架上的膜屋顶
南侧鸟瞰
屋顶仰视
16000m2屋顶下的看台
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