Anderson & Co. is located on the hilly south bank of the Yangtze River in Chongqing, neighboring a Buddhist temple Ciyun Si (Temple of Merciful Clouds) on its west. The area is designated as the core historic preservation zone in the city.
▼项目外观 ，建筑群依山而建，external view of the project, buildings follow the hillside ©DID STUDIO
History and challenge
Anderson & Co., a Swedish trading house, was originally built in 1891 and added on a number of times subsequently. This facility included offices and warehouses. During the Japanese invasion, the historic relics as well as works of art in the Forbidden City in Beijing were shipped to the South to be protected and stored here temporarily. There are eight buildings remaining on the site although in poor conditions. According to the historic preservation laws, these buildings are classified in three categories: four to be restored according to the original structure, materials, and construction methods (Building No. 2, 3, 4, and 5); one to be renovated (Building 1); and three to be rebuilt with respect to the historic context (Building 6, 7, and 8). The design challenge is how to balance the old and the new.
▼项目鸟瞰，场地紧邻长江，overlooking the site and the Yangtze River ©DID STUDIO
▼鸟瞰场地，建筑保留原本的特征，与环境相协调，aerial view of the site, the buildings remaining the original characteristics, being harmony with the environment ©DID STUDIO
▼项目鸟瞰，保留三栋传统风貌建筑，aerial view of the project, three to be rebuilt with respect to the historic context ©DID STUDIO
Continuation and innovation
The old buildings employed diverse materials and construction methods: including timer frame and timber and brick mix for structures; solid clay brick, hollow clay brick, and rammed earth for walls; wood window frames, clay-tiled roofs, and stone foundations. We wish to keep a similar richness in the new design.
▼结构分析，structure analysis ©Atelier FCJZ
▼分解轴测图，exploded axonometric ©Atelier FCJZ
For the restored buildings No. 2, 3, 4, and 5, we repaired the brick walls and tile roofs and rebuilt the rammed earth walls with contemporary technology. For the renovated building No. 1, we restored the tile roof, kept the hollow brick walls and brick columns, and opened the elevation that faces the square and main entrance with glazed doors. For the rebuilt buildings No. 6, 7, and 8, we used slates on the roof and glass curtain walls to further increase the openness.
▼建筑新老屋面对比，contrast between the new and old roofs ©DID STUDIO
▼新建筑采用石板瓦屋面，slate tile roof used for the new buildings ©DID STUDIO
▼层叠的屋面，overlapped roofs ©DID STUDIO
▼入口处建筑墙面采用落地玻璃门，glaze doors used for the facade of the building at the entrance ©DID STUDIO
▼保留青石台阶，新老建筑分布左右，preserved bluestone steps between old and new buildings ©DID STUDIO
▼青石台阶尽端，the top of the bluestone steps ©DID STUDIO
▼采用夯土墙的建筑，building with rammed earth walls ©DID STUDIO
▼钢结构建筑，building with steel structure ©DID STUDIO
We introduced a laminated timer braced truss structure to achieve a balanced force distribution through small members in Building No. 1 as well as the collapsed portions of Buildings No. 3 and 5 to achieve the original roof form. Inside the latter buildings, the laminated trusses and the rebuilt traditional timber frame are juxtaposed. For Buildings No. 6, 7, and 8, bent steel frame is engaged to support a rolling roof form.
▼1#楼，改造建筑 – 木桁架，No.1 building renovated with wooden truss ©DID STUDIO
▼3#楼新老结构并存-损毁重建部分采用新结构，No.3 building, the damaged parts was repaired with new structure ©DID STUDIO
▼5#保留建筑部分，preserved part of No.5 building ©DID STUDIO
▼5#楼损毁重建部分木桁架结构，wooden truss of the preserved part of No.5 building ©DID STUDIO
▼新建建筑 – 钢曲梁柱，new building with steel curved beam column ©DID STUDIO
▼木结构细部，details of the wooden structure ©DID STUDIO
Programs and circulation
Due to the historic connection, the Forbidden City College Chongqing with a Museum for the moving of the relics during the war time is planned to occupy the complex. Its programs include exhibitions, lectures, child education, design store, workshops, etc. Restored traditional architecture will be treated as art works on display. In the circulation design through out the site, we took into consideration of vista points for viewing architecture and created various platforms in the landscape. Buildings have large cantilevered eaves, which offer semi-outdoor spaces for outdoor activities and cover up walkways. The existing cable car tracks, stone steps, and vegetation are all saved as the memory of the site.
▼挑檐下形成半室外活动空间，semi-outdoor spaces created by the cantilevered eaves ©DID STUDIO
▼建筑之间，石阶、植被等保留场地原本的记忆，stone steps and plants between the buildings remaining the memory of the site ©DID STUDIO
▼总平面图，site plan ©Atelier FCJZ
▼首层平面图，first floor plan ©Atelier FCJZ
▼立面图，elevation ©Atelier FCJZ
▼剖面图，sections ©Atelier FCJZ
Client: Sunac China
Location: Nanbin Road, Nanan District, Chongqing, China
Principal Architect: Yung Ho Chang, Lijia Lu
Project Team: He Zelin, Yu yue, Long Bin, Pan Chenchao
Collaboration: Brother Cooperation Group
Building Height: 13.7m
Structure and Material: Plywood truss, steel curved beam column
Design Period: 2016-2018
Completion Time: 2020