Simulation Research On Fire Emergency Evacuation Of Shandong Deyun Cultural Square Scheme Based On Pathfinder

In recent years,China’s economic development level has improved,the national living standard has improved,and a large number of commercial complexes have been built.Safe evacuation in case of fire is an important content of fire protection design of large commercial complex.According to the research on the fire characteristics of commercial complex,the theoretical and Experimental Research on fire evacuation safety,through the construction of simulation evacuation model for simulation experiments,simulate the current situation of fire evacuation of commercial complex,which has important practical significance for the evaluation of fire performance of architectural design.By consulting relevant literature,conduct detailed data research on the physical characteristics,walking characteristics,psychological and physiological response characteristics of evacuees,discuss the fire characteristics and potential safety hazards of commercial complexes,and study the evacuation number calculation,crowd evacuation moving speed,body size of evacuees and available safe evacuation time required by simulation experiments.On the basis of detailed theoretical research,Based on the scheme of Deyun Cultural Square in Shandong Province,this thesis constructs its building structure and personnel characteristics simulation environment,and uses Pathfinder simulation software to simulate the current situation of fire evacuation in scheme 1 and scheme 2 of Deyun Cultural Square.According to the basic indicators of simulated evacuation,the simulation scenarios of scheme I and scheme II of Deyun Cultural Plaza project are constructed,and the evacuation area of people is set according to the fire compartment.According to the simulation experiment results,analyze the evacuation status of the scheme,summarize the evacuation problems in each scheme,screen out the evacuation stairs that can not meet the evacuation requirements in the evacuation process,and summarize and analyze the specific reasons through the simulation experiment data and simulation evacuation process video.According to the simulation results,a specific optimization strategy is proposed for the relevant evacuation stairs.The optimization principle is for the completed design of Deyun Cultural Plaza,which strictly complies with the design requirements of the national fire protection code.However,according to the design completed according to the fire protection design code,the evacuation efficiency of some evacuation stairs is insufficient or low in the process of evacuation simulation,and these problems are optimized.The optimization idea is to complete the evacuation stairs at the latest in the investigation scheme and optimize them accordingly,so that they can complete the evacuation within the available safe evacuation time,then continue to investigate and optimize the evacuation stairs at the latest in the optimized scheme and optimize them accordingly,and repeat the process until the overall scheme meets the requirements of the available safe evacuation time.Then,the structure of the evacuation stairs with structural waste,such as less evacuation people and early evacuation time,is optimized under the requirements of the specification.Determine the final optimization scheme according to the optimization results.Based on the optimization scheme,the influencing factors of emergency evacuation of Deyun Cultural Plaza are studied,and their effects on the evacuation process are studied from the width of the entrance and exit of the evacuation staircase,the width of the flight of the evacuation staircase,the moving speed of the crowd,the width of the evacuation exit of the room in the plane,the layout of the room furniture and other factors.