OPEN建筑事务所作品山谷音乐厅近日完工。经过4年的设计与建造，这座倍受期待的半室外音乐厅将于2022年春季正式投入使用。位于距北京市区约两小时车程的河北承德金山岭，建筑如同一块来自远古的巨石，降落在可以远眺长城的山谷。该项目由OPEN创始合伙人李虎和黄文菁主持设计，两位建筑师表示：“这是一座由声音出发、由内而外雕刻而成的建筑。我们称它为Chapel of Sound，希望人们可以‘看到’声音的形状，或者‘听到’寂静的声响。”
external view of the building ©朱润资
Nestled in a mountainous valley two hours away by car from the center of Beijing, The Chapel of Sound is a monolithic open-air concert hall with views to the ruins of the Ming Dynasty-era Great Wall. Designed by Beijing-based architecture office, OPEN, to look as a mysterious boulder that had gently fallen into place, The building is built entirely from concrete that is enriched with an aggregate of local mineral-rich rocks, and encompasses a semi-outdoor amphitheater, outdoor stage, viewing platforms, and a green room. While designed to capture the unfamiliar and deeply touching experience of music performed in the cradle of nature, the architects also wanted people just to calm down and listen to the sound of nature, which they believe is profoundly inspiring and healing. When there is no performance, the concert hall is also a tranquil space for contemplation and community gatherings with stunning views of the sky and the surrounding landscape.
the building nestled at the bottom of a valley ©Jonathan Leijonhufvud
▼近景鸟瞰，closer aerial view ©Jonathan Leijonhufvud
The brief for the project was very open which inspired the architects to research all aspects of performance, looking at how the behaviors of sound could be a driving force behind the final shape of a building; Li and Huang described wanting to: “see the shape of sound”. Ultimately, they were drawn to the ways sound reverberates in natural spaces such as caves.
▼半室外音乐厅，semi-outdoor amphitheater ©朱润资
With no heating or air-conditioning, the Chapel of Sound consumes minimum energy, something OPEN was very conscious of when designing the building. The openings also allow the natural elements to come inside, a void in the centre of the rooftop allows daylight to enter the structure and naturally illuminates the performance spaces. When it rains the water will also cascade through the void, however, inspired by the Pantheon, OPEN designed a drainage system that quickly drains the water away.
▼天光照亮舞台，skylight illuminate the stage ©Jonathan Leijonhufvud
▼舞台上方的天窗，skylight above the stage ©OPEN建筑事务所
inverted cone-shape structure made of dark gray concrete ©Jonathan Leijonhufvud
OPEN’s founding partners Li Hu and Huang Wenjing were driven by a desire to minimise the footprint of the concert hall in the valley, creating a structure that was in dialogue with impressive natural landscape, while also feeling undeniably man made. The resulting rock-like structure is composed of an inner and outer shell with the space between operating like a truss, and was ultimately achieved through close collaboration with international engineering firm, Arup. Formed from concrete, each striation cantilevers out from the previous layer to create the inverted cone shape. Winding staircases weave through the building to a rooftop platform that offers panoramic views of the valley and Great Wall. In the interior spaces, accents of bronze for details such as handrails and doors are used to create a warm contrast against the concrete.
▼双层混凝土壳体，the double shell structure ©Jonathan Leijonhufvud
▼朝向山峦的开洞，openings towards the mountains ©朱润资
Having designed theaters and concert halls, they knew the challenges here was how to create excellent acoustic environment without introducing additional sound absorbing materials. Working with acoustic engineers, OPEN looked at the many ways people will experience sound in the concert hall and defined openings that act both as the sound absorption areas and providing a connection with the exterior environment.
opening and folded surface creating best acoustic effect ©朱润资
▼音乐厅入口，entrance of the Concert Hall ©Jonathan Leijonhufvud
▼不锈钢大门和青铜标识，stainless steel gate and bronze signage ©Jonathan Leijonhufvud
▼首层走廊，ground floor corridor ©Jonathan Leijonhufvud
▼峡谷状的空腔，the canyon path ©Jonathan Leijonhufvud
▼蜿蜒的楼梯，winding stairways ©Jonathan Leijonhufvud
▼二层走廊，second floor corridor ©朱润资
OPEN Said: “We were very aware of the responsibility we had to contribute a thoughtful structure that fits naturally into such a unique landscape. We wanted to create something different, and more importantly, something meaningful. We are now at a time that the question of our relationship with nature as human beings is more acute than ever. Can we be humble enough to hear what nature is murmuring to us? The symphony of nature is what we really wanted people to experience here.”
There is an inherent air of mystery around the Chapel of Sound that draws you in as you approach the building. This extends to how people will interact with the space, from being a place for individual reflection to a venue for large-scale concerts, the structure can be experienced in many different ways. Huang said: “We wanted the definition of the space to be not so absolute, thus allowing for possibilities. Solitary or communal, music or sound of nature, gazing into the starry sky or connecting with one’s inner self – it’s open to the interpretation of the users”.
▼标识细部，details of the signages ©朱润资
▼卫生间，washroom ©左：Jonathan Leijonhufvud，右：朱润资
roof terrace with view to the distanced mountains ©Jonathan Leijonhufvud
aerial view of the roof terrace and the opening on the roof ©Jonathan Leijonhufvud
weathered steel staircase connected to the roof terrace ©Jonathan Leijonhufvud
details of the joint between the concrete and the weathered steel ©Jonathan Leijonhufvud
▼夜景外观，external view of the building in the night ©Jonathan Leijonhufvud
Li and Huang spent over 10 years training and working in the United States and as a result are very conscious of moving away from traditionally “Eastern” or “Western” ideas of architecture, particularly when it comes to cultural spaces. OPEN understands that the perceived differences in how cultures experience events and spaces are overstated and through their architecture strive to demonstrate that architecture has the power to connect people with each other, with nature, and with our own past and future.
semi-outdoor amphitheater in the night ©Jonathan Leijonhufvud
Design Year: 2017-2021
Client: Aranya International Cultural Development Co., Ltd.
Program: Semi-outdoor Amphitheater, Green Room, Viewing Terrace, Outdoor Stage
Building Area: 790 m²
Location: Chengde, Hebei Province, China
Architectural and Interior Design: OPEN
Principals in Charge: LI Hu, HUANG Wenjing
Project Team: ZHOU Tingting, FANG Kuanyin, HUANG Zetian, LIN Bihong, JIA Han, CHEN Xiuyuan, CAI Zhuoqun, KUO Chunchen, TANG Ziqiao
Structural & MEP Engineers: Arup
Lighting Consultant: Ning Field Lighting Design
Theater & Acoustic Consultant: JH Theatre Architecture Design Consulting Company
Landscape Design: Guangzhou Turen Landscape Planning Co., Ltd.
Signage Design: OPEN