Green Production is the theme of the 2018 Taichung World Flora Exposition at the Waipu Park Area. D.Z. Architects & Associates (DZAA) designed a bamboo pavilion used as a dining area during the Exposition. The pavilion is surrounded by many important facilities, the Activity Square in the northeast, the parking lot and the public toilets in the west, and the open rest areas in the south. To allow easy and free access, we decided to open up the pavilion to all directions.
Choosing “bamboo”- the local material
Traditional Taiwanese houses were built with local natural materials. Materials such as bamboo, thatch, stone, and soil were often used. These houses adapted well to climate, seasons, and even to earthquakes. The Bamboo Tube House is a good example of such usage of material. These wonderful natural building materials were replaced by “efficient” “modernized” ones, such as reinforces concrete. In the past decade, DZAA has devoted much energy in advancing bamboo as a viable building material, learning from traditional methods and applying them to modern construction methods. The biggest hurdle to overcome in the building of traditional Bamboo Tube House is the high labor cost. We believe that standardized, systematic, and prefabricated truss system is the solution.
Structure and form
The three gabled bamboo roofs are the most memorable form of the pavilion. It is an image symbolizing the surrounding mountains. Bamboo has a tubular body construction with joints as reinforcement and very dense fibrous structure. These features make bamboo an ideal structural member for a truss system, as truss members bear only axial force. We used indigenous Moso bamboo. The roof consists of a top layer of polycarbonate corrugated board with fir sheets underlining. Natural light enters the bamboo-strip-woven ceiling in the boundary of the gable roofs. The light quality of the pavilion is like walking under tree shades in a delightful afternoon.
Rainwater falling on the rooftop eventually drains to pebble piles on two sides. The basement of the pavilion is constructed using creek stone from the local Taichung Dajia quarry instead of reinforced concrete. This choice of material makes our pavilion even more eco-friendly and close to nature.