Research On The Performance Of The Fire Design And Evacuation In Integrated Transportation Hub Of Changchun South Railway Station

Recently years,with the rapid development of urban economy,urban rail transit has gradually become a representative symbol of regional development,in view of the current large-scale transport hub building huge,staff concentration,functional complexity,according to the existing fire code,we design the new method of fire protection for the construction,namely is,the "prescription ",however,hasn't been able to meet the contemporary integrated transport hub of the architectural design and safety requirements;structure,function,modeling and other special requirements,traffic hub fire design will be no corresponding system specifications,To standardize the scope of the trial does not meet or the implementation process has practical difficulties,besides,we will adopt more systematic,better,more economical and more scientific performance of the fire method.In addition,the performance-based fire design method is widely used in building fireproof design with its outstanding advantages in fire scene and personnel evacuation simulation,so as to further improve and supplement the limitations of "style" fire design method.It can be seen that it is an important problem to be solved urgently by considering the performance of fire control design of integrated transportation hub and adjusting the optimal planning and architectural design by using the method of performance and fire protection design to avoid and reduce the fire hazard.In this paper,the Changchun South Railway Station as the main body,make study research on internal space fire evacuation design,this paper divided into four chapters.Firstly,a brief description of the research background,focusing on the domestic fire performance of the status,data collection,collection and analysis.Then,carry out investigation at Changchun South Railway Station,and the spatial characteristics of Changchun South Station are analyzed.Analyze the characteristics of Changchun South Station,and the fire safety performance is selected to deal with the hidden dangers of the internal spaceTaking the numerical simulation software FDS,create the simulation model of flue gas,which simulated the layers of the building space which in the fire situation the smoke flow conditions(basement 1 as transfer hall,basement 2 as public hall,negative basement 3 as rail line and basement 4 as subway line),through the fire burning process flue gas heat radiation,the clarity of the spatial environment and the release of harmful gas co concentration changes,so as to fully understand the dangers of fire,analysis of the effective evacuation time of the fire available to the point where the danger comes.people can use efficacy time to escapeUsing the numerical simulation software Pathfinder to carry out personnel evacuation simulation analysis,select the fire situation under the typical fire scene to carry out personnel evacuation process simulation,analysis of the number of its existing staff statistical the future of Changchun South Station integrated transport hub of the future peak flow rate value,assuming different conditions,get the necessary evacuation time required for evacuation of personnel under different conditions,and finally analyzes the influence of unavoidable uncertain factors.Finally,according to the practical problems of the hub,the fire evacuation performance design of the implementation of the program to ensure the safety of its transport hub,hoping to be able to fire protection performance of such buildings play a catalytic role in order to reduce the integrated transport hub fire casualties and economic losses,maintaining social stability in order to promote sustainable economic development,which has great significance.