PREFABRICATED BUILDING SYSTEMS IN COMPACT CITIES AND CONSTRUCTION AND DEMOLITION WASTE MANAGEMENT: HONG KONG EXPERIENCE
Hong Kong is a compact city and one of the most densely populated places in the world. The population in 2005 was over 6.9 millions, and the built environment occupied only about 20％ of the whole territory. The total territory area was about 1104 square kilometers in 2005. The development of high- rise building is consequently a common practice in Hong Kong to maximize land use. The land population density was over 50,000 people per square kilometers in some districts. With such compactness, environmental sustainability is of increasing concern. The management of construction and demolition waste is a key environmental issue, as Hong Kong has limited space for the disposal of waste at landfills and public filling areas. The government promotes waste reduction through the reuse and recycling of construction materials and waste and the adoption of low waste building technologies. Recently, two Joint Practice Notes were published promoting green and innovative building practices in the private sector, such as the use of prefabricated elements. Prefabricated building systems were firstly introduced in Hong Kong in the mid 1980s for the design and construction of public housing developments. Since 2001, the private sector has moved to a greater extent in the use of prefabricated elements in buildings. This paper reviews the influence of the new incentive schemes to promote green and innovative practices and prefabrication in Hong Kong. The use of prefabrication in dense urban areas is examined through case studies of existing and current buildings. Also, the effect of prefabrication and building design on waste reduction is discussed throughout the building life cycle.
L. JAILLON C. S. POON
Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon
国际会议
广州
英文
361-369
2006-12-01（万方平台首次上网日期，不代表论文的发表时间）