The Ariake Gymnastics Centre is designed to function in two phases; initially as a temporary international sports competition facility, then, after taking out the temporary spectator stands, it will be converted into a permanent exhibition hall.
▼视频，video ©Nikken Sekkei Ltd
A unique feature of this facility is its extensive and generous use of timber throughout the building. This is a positive realization of “wooded facilities” and “sustainability” announced in the Tokyo 2020 candidacy file. The material was also selected to express the memory of this district which was once a timber storage pond. Based on the architectural concept of “a wooden vessel floating in the bay area,” timber is used wherever possible, specifically in the roof frame structure, facade, spectator seats, exterior walls, etc. while carefully considering the characteristics of wood in each application.
▼鸟瞰，aerial view ©SS
▼户外入口大厅，concourse outside the building ©鈴木研一
The arena ceiling is a wood frame structure designed to reduce the weight of the overall structure. The concourse space, where spectators approach the arena, is intentionally placed outdoors. The wood facade takes into account acoustic and thermal insulation properties. Function, structure, and space are tightly combined to achieve beauty and richness in simplicity, which is the essence of Japanese traditional wood architecture that we hope spectators and athletes from all over the world will experience.
▼露出的木制框架能够减轻自身重量，the wood frame structure was designed to reduce the weight of the overall structure ©鈴木研一
▼交通空间，circulation area ©鈴木研一
▼楼梯细节，staircase details ©鈴木研一
Expansive Semi-Outdoor Public Space Well Suited to the Bayside Setting
The site is located in the midst of a vast, wide-open landscape along a canal. Yet the design also needed to take into account the residential environment of the medium-rise and high-rise condominium buildings in the vicinity. The horizontally long and flowing lines were achieved by keeping the building height as low as possible, reducing the overall volume and controlling the height of the eaves. By positioning the circulation concourse on the outside of the building and creating an open and broad approach space, the design attempts to avoid the impenetrable exterior typically found on large-scale sports facilities created by the monolithic walls.
▼将大厅外部化，使其成为开放式的入场空间，the circulation concourse was positioned on the outside of the building, creating an open and broad approach space ©鈴木研一
▼场地夜间鸟瞰，site aerial view by night ©鈴木研一
Realize a Large Wooden Space Spanning 90 Meters
▼结构细部，structure details ©Nikken Sekkei Ltd
Lightening the weight of the structure by using wood for the roof is effective for buildings constructed on sites with poor soil conditions. In this project, we adopted a simple structure that uses single members of large glued laminated timber with high heat capacity, rather than trusses consisting of a number of small members, to achieve both fire resistance performance and structural stability. Japan’s first complex structural system using Timber Beam Strings Structure and Cantilever Trusses created a large wood-frame space that dynamically covers the arena.
▼日本首个复合式木质张弦梁结构，Japan’s first complex structural system using Timber Beam Strings Structure and Cantilever Trusses ©SS
▼以木质饰面包覆的户外大厅，the ceiling of the concourse with timber cladding ©鈴木研一
▼从运河望向体育场，view to the Gymnastics Centre from the canal ©鈴木研一
▼平面图，plan ©Nikken Sekkei Ltd
Facility name: Ariake Gymnastics Centre
Location: Ariake, Koto-ku, Tokyo Japan
Principal use: Exhibition hall
Client: The Tokyo Organising Committee of the Olympic and Paralympic Games
Concept design/Developed design supervision: Nikken Sekkei Ltd
Developed design: Shimizu Corporation, Masao Saito（engineering adviser）
Total floor area: 39,194.30 square meter (at the time of games)
Number of floors: 3 above ground
Height at highest: Approx. 30m
Structure: steel construction, Roof: wooden
Construction period: Nov. 13th, 2017~Oct. 31th, 2019
Construction: Shimizu Corporation