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BIM Architecture Showcase: Changsha Dawangshan Langham Hotel by Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

Located within the Dawangshan Tourist Resort in Changsha, the Langham Hotel is surrounded by lush natural landscapes. It serves as the gateway to the Deep Pit Ice and Snow World amusement area. Standing 100 meters tall, the hotel overlooks the abandoned open-pit mine, making it a prominent landmark and visual focal point on the Dawangshan skyline in southwest Changsha.

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

Inspired by the bust of Egyptian Queen Nefertiti, the hotel’s design has evolved into a cylindrical tower with an elliptical base. The podium and tower are seamlessly connected in a streamlined form, creating a belt-like architectural system that maximizes flexibility for the interior layout. The exterior façade flows gracefully, with an elegant transition from top to bottom and side to side.

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

The hotel’s main entrance sits between the tower and the podium, highlighted by an iconic steel structure design. The podium spans three floors and houses amenities such as a restaurant, bar, multifunctional meeting rooms, gym, spa center, beauty salon, and hair and skincare salon.

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

The hotel tower contains 295 standard single and double rooms. The largest suite spans 225 square meters and features glass curtain walls offering a stunning 180-degree panoramic view. Separate elevator systems in the podium and tower ensure smooth and efficient vertical circulation.

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

The building’s central core tube, located in the main hall, supports the structure. A cantilevered steel system transfers loads from the podium to this core. The columns vary with the façade’s shape, creating a column-free space between the tower and podium. The tower’s sculptural form consists of complex structures and six coordinated elevators to enhance efficiency and reduce wait times. Reinforced concrete construction of the core tube provides resistance to vertical loads, wind, and seismic forces.

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

The floor slabs prevent column distortion and transfer lateral forces to the core tube via bent columns. Made of trapezoidal steel plates topped with concrete, these slabs span up to 5 meters and are supported by parallel steel beams connecting the core tube and outer columns. All steel structures are fireproofed. The reinforced concrete core provides essential lateral rigidity, while the rest of the structure uses lightweight steel to reduce weight and seismic loads. This combination forms an efficient system that allows flexible mechanical space allocation, shortens construction time, and lowers costs.

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

Project plans and diagrams:

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

△ First floor plan

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

△ Third floor plan

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

△ Fifth floor plan

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

△ Restaurant floor

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

△ Standard floor plan

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

△ Section diagram

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

△ Section diagram

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

△ Analysis chart

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

△ Analysis chart

BIM Architecture | Changsha Dawangshan Langham Hotel/Blue Sky Group

△ Analysis chart

Project Information

Architectural Design: Coop Himmelb(l)au

Area: 60,000 m²

Project Year: 2021

Photographer: Summer Solstice

Design Director: Wolf D Prix

Project Partner: Markus Prossnigg

Project Coordination: Feng Lei

Project Architect: Angus Schoenberger

Design Architects: Quirin Krumbholz, Tyler Bornstein

Design Team: Tamara Soto, Laura Ghita, Crystal K.H Tang, Xinyu Wan, Paul Challis, Veronika Janovska, Denitsa Parleva, Sorena Dumitru, Philipp Scherl

Principal: Changsha Pioneer Land Development and Construction Co., Ltd

Structural Engineer: Bollinger und Grohmann, Vienna, Austria

MEP: Buro Happold Ltd, Bath, UK (competition stage); Arup Engineering Consulting (Shanghai) Co., Ltd. (planning stage)

Landscape Design Institute: Huajian Group East China Architectural Design and Research Institute Co., Ltd

Transportation Consultant: SKM | Sinclair Engineering Consulting (Shanghai) Co., Ltd

Fire Consultant: Changsha Kerui Fire Engineering Technology Co., Ltd

BIM: BIM

Specification: SPEC

Lighting Consultant: LEOX Design Partnership

Curtain Wall Consultant: Shanghai Xiangyun Construction Engineering Consulting Co., Ltd

Interior Design: Rockwell Group Europe

Location: Changsha, China

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