Application of AHP Method in Green Wall Watering System Selection for Commercial Buildings

• Main Authors: Lin Cheng Te, 林政德
• Other Authors: Wang Yu Jen
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/52466445098163878510

碩士 === 國立高雄應用科技大學 === 土木工程與防災科技研究所 === 98 === Taiwan is located in the sub-tropical zone and the weather is humid and warm. Most of the building exterior walls are made of reinforced concrete (RC) while few are curtain walls made of PC (pre-cast concrete) slab, metal slab or glasses. The RC exterior wall structures are heavy and poor in heat isolation. In recent years, vertical green wall structures are often used at the exterior of new or existing buildings to save energy consumption. Having climbing plants on top or around the buildings will help control the temperature inside. The climbing plants for the exterior green walls are planted in the frame structure so that the plants can climb on the frames as they grow. The PE and metal frames with climbing plants can also serve for better aesthetics. In order to create good living conditions for the green wall plants, it is important to have an appropriate water supply system. Thus, the decision of choosing water supply system becomes crucial for the green wall system during the planning stage. Typically, there are two water supply systems for green wall: drip system and spray system. The drip system supplies water directly into the soil through tubes while the spray system generates mist in the air to water the plant surface. This research utilizes AHP method to assist the project team select water supply systems for the exterior green wall structures in a commercial building. The expert survey analysis results show that the drip system obtain a higher weight of 0.584 than the spray system. That is, the panel of experts chooses drip system over spray system as the water system for the green wall structures in this commercial building. The results can serve as good reference for other project teams when choosing green wall water supply systems.