感谢 中南建筑设计院（海南华筑国际工程设计咨询管理公司） 予gooood分享以下内容。更多关于他们：CSADI on gooood.
Appreciation towards CSADI (Hainan China-Architectural International Engineering Consulting & Managing Company) for providing the following description:
General situation of Engineering
区位 | Location
Cangnan County, located at the southernmost end of Zhejiang Province, was founded in June 1981. It belongs to Wenzhou, Zhejiang Province and is one of the six counties under the jurisdiction of the city. Because it is located in the south of Yucang Mountain, the county is named Cangnan. East and southeast are bordered by the East China Sea, southwest by Fuding City, Fujian Province, West by Taishun County, north by Pingyang and Wencheng Counties. Cangnan City is 81 kilometers away from Wenzhou City and 432 kilometers away from Hangzhou, the provincial capital.
▼体育中心远景，exterior view of the sports center from the distance
规模 | Scale
The total construction area of this project is 30023.88, including multi-functional gymnasium, class B, building area 1717179.58, grandstand can accommodate about 3870 people; swimming pool, class C, building area 11164.30, grandstand can accommodate about 820 people, using one-sided grandstand, which contains a standard swimming pool and a training pool; the overhead floor construction area of outdoor large platform is 1680.
▼体育中心鸟瞰图，体育中心由一个多功能体育馆和一个游泳馆组成，bird-eye’s view, the sports center consists of a multi-functional gymnasium and a swimming pool
基地环境 | Base Environment
The project is located on the central axis of Cangnan County New Town, adjacent to the city park and across the lake from the county administrative center. The location is prominent, is the gateway of the county and the excellent image display. The base is irregular quadrilateral, and the west boundary is S-shaped curve, which is adjacent to the County Central Lake park. It has a wide view and excellent landscape. How to talk with the landscape has become an important research topic in this design.
▼体育中心区位图，基地呈不规则四边形，西侧边界为s型曲线，紧邻县城中心湖公园，the context, the base is irregular quadrilateral, and the west boundary is S-shaped curve, which is adjacent to the County Central Lake park
规划布局 | Planning and Layout
The total land area of this project is 47 431, and the net land area is 44 871. The west side of the base is adjacent to the city parks and squares. For the residents of the park, the sports center is the most important image. Yucang Road is located in the south side of the base, the main road of the city, and also the important street interface. We design the gymnasium and swimming pool as a “eight” shape composition, which is spread out on the ground from north to south. One side of the opening faces the central park, echoes the curve interface, and the other side faces the planned road. The two halls are connected by an overhead platform to form a visual corridor across the East and west. The main axis of the South gymnasium is east-west, which makes the side of Yucang Road have a good interface along the street. The layout responds well to the surrounding environment.
▼体育中心鸟瞰图，采用“八”字形构图，八字开口一侧朝向中心公园，bird-eye’s view, using a “eight” shape composition, and one side of the opening faces the central park
▼体育中心鸟瞰图，南侧体育馆长轴成东西向，使玉苍路一侧拥有良好的沿街界面，the main axis of the South gymnasium is east-west, which makes the side of Yucang Road have a good interface along the street
Rhododendron, also known as Yingshanhong, is the flower of Cangnan County. Cangnan Sports Center consists of a comprehensive gymnasium and a swimming pool. It is like a big one or a small one or two blooming white azaleas. Each flower is divided into ten petals with perfect implications. The exterior wall material of the building is white aluminium board, which is as warm as jade and white without any time. The gap between each two petals is glass curtain wall, which forms a virtual contrast with the petals and strengthens the intention of the flowers. The “ribs” on both sides of each petal are like meridians on the petals, which delineate the beautiful curve of the petals and make the flowers look more three-dimensional. The large outdoor platform surrounded by the waist of two “cuckoos” is like a jade belt connecting two venues. The design of the platform combines architectural modelling and is wrapped in the structure of the building to create a half-outdoor “grey space” to achieve rain-free passage between the two halls, thus achieving the perfect combination of the external space of the building and the architectural structure.
▼体育中心外观局部，在两个建筑体量之间设置室外大平台，partial exterior view, organizing the large outdoor platform between the gymnasium and the swimming pool
▼体育中心外观局部，两馆以架空平台联系，形成横贯东西的视觉通廊，partial exterior view, the two halls are connected by an overhead platform to form a visual corridor across the East and west
▼体育中心外观局部，外墙面材料为白色铝板，每两组白色铝板之间设玻璃幕墙，partial exterior view, using white aluminium boards as the exterior wall, and the the gap between each two petals is glass curtain wall
▼体育中心外观局部，首层设有人行景观步道，partial exterior view with the walking garden space at the ground level
The main body of the two stadiums in this project adopts steel truss structure combined with reinforced concrete frame structure, and the roof adopts curved reticulated shell structure. The “flower ribs” at the petal edge, together with the landing columns, inclined columns and diagonal bracing beams, constitute a “R-shaped” truss. Each two-grade truss forms a stable gigantic column, and then ten R-shaped columns are tied together by a combined steel beam to form a complete peripheral protection structure system. The reinforced concrete frame structure with internal structure of 8mx8m is integrated with concrete pouring at the junction of external maintenance structure, which enhances the overall stiffness of the structure.
▼体育中心外观局部，铝板“花瓣”边缘的“花肋”与落地的直柱、斜柱、斜撑梁共同构成一品“R字形”桁架，partial exterior view, the “flower ribs” at the petal edge, together with the landing columns, inclined columns and diagonal bracing beams, constitute a “R-shaped” truss
The huge “petal” component cantilever distance reaches about six meters, which produces the overturning moment to the outside, and the dome of the stadium also produces the horizontal thrust to the outside. As a result, the combined force of the two strands forms a more disadvantageous overturning force, but only one circle of vertical columns can provide stability, which aggravates the instability of the whole structure. In order to solve the problem of overturning, on the one hand, the self-weight of vertical large columns is increased, on the other hand, continuous ring beams and floors are added to the roof to act as “hoops” to counteract the overturning force.
▼“R字形”桁架细节，details of the “R-shaped” truss
体育馆空间 | Gymnasium Space
The net height of the gymnasium competition hall is about 20m. The sunlight passes through the transparent part of the top “flower stamen” and can be illuminated into the room. Then it can be diffused by the reflecting board, so that the room can get sufficient natural light. The basketball training ground is located under the main stand. The net height of the lowest side can meet the requirement of 7m net height.
▼体育馆空间，充满自然光线，the gymnasium competition hall with sufficient natural light
▼体育馆空间的篮球训练场，the basketball training ground in the gymnasium competition hall
游泳馆空间 | Swimming Pool Space
The net height of the swimming pool competition hall is about 15 meters. Natural lighting can be obtained on the top and both sides. It has an open and bright competition environment. The training pool is located on the side of the auxiliary room, which guarantees the integrity of the interface on the side of the competition pool and makes the spectator area have a good experience of watching the match.
▼游泳馆空间，屋面采用曲面网壳结构，the swimming pool competition hall, the roof adopts curved reticulated shell structure
▼游泳馆空间，顶部和两侧均可以获得自然采光，the swimming pool competition hall, natural lighting can be obtained on the top and both sides
Sports buildings have the characteristics of intermittent use. There are many people using them in competitions, but there are a lot of idle space in peacetime, and these idle space will also produce a lot of maintenance costs, which is a very important drawback of the development of modern sports buildings. Post-competition issues also challenge the sustainability of sports buildings. The first floor of the two gymnasiums is mainly designed as sports goods stores, gymnasiums and other sports-related industrial rooms for rent, so as to facilitate citizens to participate in physical exercise in peacetime, and to form a “commercial health” operation mode.
▼游泳馆入口大厅，the entrance of the swimming pool competition hall
Traffic Flow Line
车行流线 | Vehicle Flow Line
The two oval venues are arranged in octagonal form. The opening is directly opposite to Chunhui Road on the west side of the base. The octagonal opening surrounds the front square. As the main pedestrian square, the entrance of the secondary vehicle type is on both sides of the square, which is used for fire fighting and emergency response. The Eastern square is the secondary pedestrian square. Along its two sides are the main entrance to the car park, which connects the northeast corner and southeast corner of the base. The parking lot in the northeast corner and southwest corner mainly serves the audience. The parking lot in the southeast corner mainly serves the athletes and staff, so as to achieve streamline separation and traffic diversion. The main body of the building is a rigid square, which can be used as both emergency lane and fire lane.
▼体育中心夜景，首层设有停车场空间，the night view of the sports center with the parking space at the ground level
步行流线 | Walking Streamline
In this case, the concept of “three-dimensional traffic” was introduced. The audience flow of the two venues evacuated directly from the inside of the venue to the platform, then directionally evacuated from ramps and large steps to the East-West Plaza, then evacuated from the East-West Plaza to the East-West two urban roads respectively, and eventually to the Yucang Road. This evacuation method avoided the impact of a large number of people flow on the main road in a short time. Directional evacuation of large platforms also avoids the impact of a large number of disorderly flow of people on the bottom business of buildings.
▼体育中心夜景，项目引入“立体交通”概念，the night view of the sports center, introducing the concept of “three-dimensional traffic”
In the process of project design, we also left some regrets. For example, in order to clearly define the Shuangguan as a multi-storey building below 24 meters, an additional gutter at the eaves of the roof destroys the fluency of the petal shape of the building. Another example is the inclined space inside the petal, which was originally considered as the characteristic indoor space, but the uniqueness of the space was weakened because of the unfavorable structural factors. These regrets also inspire us to carry forward the spirit of “big country craftsmen” to strive for excellence in the future design and creation, and to consider the quality of every space and every detail of the building more thoughtfully and reasonably, so as to create high-quality and high-quality projects.
▼体育馆二层平面，2F of the multi-functional gymnasium
▼游泳馆二层平面，2F of the swimming pool
▼游泳馆三层平面，3F of the swimming pool
▼游泳馆剖面图，section of the swimming pool
▼体育馆剖面图，section of the multi-functional gymnasium
Project name: Cangnan Sports Center
Design: Central South Architectural Design Institute (Hainan China-Architectural International Engineering Consulting & Managing Company)
Design year: 2010-2011
Completion year: 2015
Leader design: Liying
Architecture: Liying, Gaojie, Yangguang, Wuanchenwei
Structural Engineering: Shentao, Lizhanli, Zhangyaohui, Lileika, Zhangzhenxuan
Water Supply and Drainage: Yangyunbo, Lijing, Yanyanxia, Pengbo
Electrical Engineering: Wangshuwen, Caoxingyu, Zhubenlong
HVAC: Libin, Huyan, Caotao
Cost Engineering: Songtianqing
Project location: Zhejiang, Cangnan
Gross Built Area: 30023.88㎡
Photo credits: Dingshuo
Clients: Cangnan Sports Bureau