为解决地下交通广场的建筑功能、建筑艺术和火灾安全之间的矛盾,本文分析了地下交通广场的火灾危险性特点,基于功能安全协同设计理念,参考相关国内外工程案例和标准,提出了分隔车辆与人员密集区域、分隔车行区域与站场区域、站场区域参照国际标准确定防火分区面积并加强消防措施的消防设计策略。针对杭州秦望通道工程地下交通广场,利用提出的策略进行设计,通过等候区单独设置,公交、出租车站场区域疏散人员减少35%以上,人员主要集中于疏散出口附近。通过FDS和Pathfinder进行模拟计算,结果表明:应用消防设计策略设计后,公交、出租车站场区域的人员可用安全疏散时间是必需疏散时间2.8倍以上,可以满足安全疏散的要求。
In order to solve the contradiction between the architectural function, architectural art and fire safety of the underground traffic square, the fire risk characteristics of the underground traffic square are analyzed. Based on the concept of functional safety collaborative design, referring to relevant engineering cases and standards at home and abroad, the fire protection design strategy of separating vehicle and personnel intensive area, separating vehicle area and station area, and refer to international standards to determine the fire compartment area and strengthen fire protection measures is proposed. Aiming at the underground traffic square of Hangzhou Qinwang Channel Project, the proposed fire protection design strategy is used for design. By setting the waiting area separately, the evacuation personnel in the bus and taxi station area are reduced by more than 35%, and the personnel are mainly concentrated near the evacuation exit. The simulation calculation is carried out by FDS and Pathfinder. The calculation results show that after the application of fire protection design strategy, the available safe evacuation time of people in the bus and taxi station area is more than 2.8 times the necessary evacuation time, which can meet the requirements of safe evacuation.
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