該項目位於越南中北部的榮市（Vinh），旨在對一棟7層的混凝土建築的頂層和屋頂花園進行改造，使其成為一間新的城市咖啡廳。屋頂處享有極佳的視野，能夠俯瞰周圍的低層住宅、河流、壯麗的森林景觀和一系列歷史悠久的建築。
This renovation project includes a café on the last floor and the roof top of a 7th floor middle-rise concrete building located in the city center of Vinh city in the middle north of Vietnam. From these levels one has a great view over the surrounding low-rise houses, towards the river, magnificent forest scape and various aged buildings.
▼項目概覽，project overview
該地區的建築物在越戰期間遭到了破壞，其中大部分經歷了翻修，外立面呈現出殖民時期的歐洲風格。如今，一些新建的建築仍舊在延續類似的外觀設計。該項目的業主希望在不改變既有建築外觀的前提下，為建築賦予獨特且具有吸引力的附加功能，使其成為城市中的地標。
The buildings in this area were damaged by the Vietnam War. Most of them were also renovated with colonial style façades inspired by European designs. Nowadays, regardless of their height, some of the buildings still imitated this kind of the façade style. The client required not to change the envelope of the existing building, but create a unique and attractive addition that change this building into an icon of the city.
▼咖啡廳佔據了既有建築的頂層和屋頂花園，the renovation project includes a café on the last floor and the roof top of a 7th floor middle-rise concrete building
設計的主要挑戰在於，要使用一種由當地特殊材料製成的新結構來介入既有的建築。在對一些當地材料（磚、石材等）進行研究之後，建築師選用了竹子來打造空間：在熱帶環境中，竹子容易獲取且能夠減少施工的時間和成本。設計充分利用了竹子輕盈的特性。一方面，竹材十分易於搬運，僅用一臺起重機就可以輕鬆地運送到建築的最頂層。另一方面，竹結構可以在完全沒有額外結構支撐的情況下完成裝配。
The challenge was to create an impact on the building by inserting a new structure with unique and local material. After studying several local materials such as brick, stone, etc we chose bamboo to work with. Through our experience, we know bamboo is easily to access in this tropical climate which reduces construction time and budget. The essence of using bamboo in this project is “lightness”. As bamboo which can be lifted up by a few workers and easily transport to the highest floor by a crane. In addition, it is possible to install the bamboo structure without any additional structural support.
▼建築師選用竹子來打造空間，bamboo is used as the main material to create the space
在建築的頂層（7層），建築師將竹材覆蓋在既有的混凝土結構之上，打造出一個有著豐富質感的空間。獨特的竹製屋頂使街上的行人能夠很快辨認出咖啡廳的位置。既有的支撐結構被隱藏在10根竹柱內部，劃分出優美且具有私密感的空間。儘管這些“洞穴”帶來的是一種較為隱蔽的體驗，但從任何角度，人們都可以欣賞到周圍的城市美景。
For the 7F (top floor), we covered the existing concrete structure with bamboo material, it converted into an element that creates spatial qualities. Because the ceiling is covered with bamboo as well, pedestrians in the city can recognize the space from the street. There are 10 bamboo columns to hide the existing structure and 4 additional columns. These columns elegantly divide the space into different private areas. The cave-like space can never be experienced in its totality, but every place has a view to the surrounding city.
▼位於7層的用餐空間，dining area on the top floor
▼竹材為咖啡廳空間帶來豐富的質感，the bamboo material creates spatial qualities for the cafe
▼空間細部，interior detailed view
▼既有的支撐結構被隱藏在10根竹柱內部，there are 10 bamboo columns to hide the existing structure and 4 additional columns
▼被巨大圓頂覆蓋的空中露臺，roof garden covered by the enormous dome structure
▼能夠俯瞰城市美景的露臺，every place has a view to the surrounding city
巨大的圓頂結構為咖啡廳賦予了引人注目的外觀，在榮市的上空形成一個開放共享的聚會空間。圓頂和矩形體量迎合了建築既有的L形佈局。從矩形體量的寬闊窗戶中可以望見歷史悠久的體育場。此外，它還連接了兩個竹製的拱形結構，使空間得以充分敞開於城市景觀。
The enormous dome structure on the roof, which can be recognized from any place in the city, a roof top club is created as a gathering space for all the inhabitants of Vinh city. The dome and rectangular volumes on the rooftop fit in the existing L-shaped space. The rectangular volumes generate a framed view on the historical stadium and the beautiful cityscape. Moreover, it connects 2 vault bamboo structures, that open up to the cityscape.
▼夜間效果，night view
▼屋頂空間細部，detailed view of the dome structure on the roof
▼軸測分析圖，axon diagram
▼7層平面圖，7th floor plan
▼屋頂平面圖，roof top floor plan
▼7層天花平面，7th ceiling plan
▼剖面圖AA，section AA
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