長(zhǎng)春南站綜合交通樞紐消防疏散性能化設(shè)計(jì)研究
[Abstract]:In recent years, with the rapid rise of urban economy, urban rail transit has gradually become a representative symbol of regional development. The "place way" fire prevention design that we still adopt at present, that is, the method of fire prevention design for different buildings according to the existing fire prevention codes, can no longer meet the architectural design and safety needs of modern integrated transportation hubs. Special requirements in modeling and other aspects, there will be no corresponding system specifications in the fire prevention design of transportation hubs, problems such as the non-conformity of the scope of the standard trial or practical difficulties in the implementation process, etc., we will adopt more systematic and more perfect. More economical, more scientific fire performance method. In addition, based on the quantitative analysis of smoke simulation and evacuation simulation based on fire scene, the fire performance design method is more widely used in building fire prevention design. In order to further improve and supplement the limitations and shortcomings of the "article style" fire prevention design method, perfect the fire performance design measures of the comprehensive transportation hub, and use the fire performance design method to adjust the optimal planning and architectural design, To avoid and mitigate the fire hazard is an important subject to be solved urgently [1]. In this paper, the design of interior fire protection evacuation of Changchun South Railway Station is studied, which is divided into four chapters. Firstly, the research background of the subject is briefly described, and the data collection, collation and analysis are carried out according to the present situation of fire protection performance in China. Next, through field investigation, the comprehensive transportation hub of Changchun South Railway Station is studied in depth, and its spatial characteristics are analyzed. Aiming at this kind of super-standard underground large space building, The fire protection performance is chosen to deal with the hidden safety problems in its internal space. The smoke simulation scene model was created by using the numerical simulation software FDS to simulate each floor of the building space (negative first floor transfer hall, negative second floor public station hall floor, negative second floor public station hall floor). The flue gas flow in typical fire scene in the negative three layer light rail line platform layer and the negative four layer subway line platform layer), through the smoke heat radiation during the fire combustion process, The clarity of the space environment and the change of the carbon monoxide concentration of the harmful gas released, so as to fully understand the harmfulness of the fire, and analyze the effective safe evacuation time that can be used by the personnel when the fire occurs to the danger. The numerical simulation software Pathfinder is used to simulate the evacuation process, and the typical fire situation is selected to simulate the evacuation process, and the existing number of personnel is statistically analyzed. The population flow value of the future peak period of Changchun South Railway Station Comprehensive Transportation Hub is obtained. On the assumption of different conditions, the necessary evacuation time is obtained under different working conditions. Finally, the influence of its inevitable uncertain factors is analyzed. Finally, in view of the actual problems of the hub, the implementation scheme of fire evacuation performance-based design is analyzed in order to ensure the safety performance of the transportation hub, and it is hoped that it can promote the fire protection performance-based design of this kind of building. Therefore, it is of great significance to reduce the casualties and unnecessary economic losses caused by the fire in the integrated transportation hub and to promote the sustainable economic development and social stability in China.
【學(xué)位授予單位】:吉林建筑大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:TU998.1
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