The Comparison Study on the Prescription- and Performance-based Designs of Smoke Control System in Ａtrium or Ｌarge Spaces

• Main Authors: Chun-Neng Ting, 丁春能
• Other Authors: Chiun-Hsun Chen
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/72317242291966511426

碩士 === 國立交通大學 === 工學院碩士在職專班產業安全與防災學程 === 94 === Traditionally, buildings in Taiwan have been designed to meet the requirements of prescriptive-based fire codes. However, these codes do not thoroughly take into account the intended use of a space, such as the open environments, large non-compartmented spaces and atria, and they are slow to catch up with the latest advanced technologies. For example, Article 189.1 (7) of the Standard for Installation of Fire Safety Equipments Based on Use and Occupancy states: “The above-mentioned induced draft fan shall be enabled to start running with the opening of any exhaust port, and its capability shall not be less than 120m3/min, and when placed in a smoke compartment, not less than 1m3/min for every square meter of the compartment; in two or more smoke-proof compartments, not less than 2m3/min for every square meter of the largest compartment. But when in a passage of an underground building, the total desmoke capability shall not be less than 600m3/min.” In other words, the exhausted volume of smoke has long been thought in proportion to the floor area. In fact, the smoke control design in large spaces and atria technically correlates closely with the volume of buildings, which can contain smoke instead of creating a pressure sandwich by using smoke curtain for exhausting smoke in the area of the fire to confine smoke into the fire origin. This thesis investigates and analyses the questions of the domestic fire and smoke management policies and criteria. Besides, the purpose of this research is to provide a solution to the current smoke exhaust design in buildings with large spaces and atria through a performance-based smoke control design method.