The Research On Building Fire Safety Performance Evaluation System And Application Software Compiling

Safety egress analysis and design is an important part of fire protection analysis and design of buildings. At present, mostly analysis in our country use foreign Field Modeling or Zone Modeling to calculate the smoke movement, and the safety egress of the whole people, the subarea people and the people in different fire departments have been simulated and analysed by the means of EVACNET4,Togawa and so on. This way of analysis and compare is accomplished by manual work, and is very cockamamie in Multi-layer and Multi-room building fire. It must be disposed by different layers and different zones. Of course it is very discommodious.Based on previous studies of the application software to calculation on properties of smoke flow in fire Network Modeling and the time forecast software of personal evacuate travel in high-rise building, according to the quality and energy conservation principle, the paper proposes fire flue gas temperature when the fire reaching a dangerous state in the network model, then evacuation time (ASET) can be calculated. Simultaneity, the paper proposes a new method that combining VB with MATLAB program technology to analyze and evaluate safety egress in Multi-layer and Multi-room building fire, besides the BF-SPES(the Building Fire Safety Performance Evaluation System)is worked out. The combining program of VB and MATLAB is realized by using of ActiveX and MATLAB interface technology. Finally, combining program achieves to lookup dynamically and evaluate safety in Multi-layer and Multi-room building fire personal egress. The software has the characteristics of visualization and friend operation inter-surface. At the same time, It can show gathering situation of he evacuation and realize the inquiry of number of evacuation persons and flue gas parameters.Through the assuming of fire detector alarm time, personnel recognize time and response time, the software calculated time required for safe evacuation (RSET). Through the comparison of RSET and ASET, the software can make quantitative evaluation and judgment to the safe evacuation ability of every node in building building, meanwhile the software draws out the comparative picture of node number of evacuation person curves, flue gas temperature curve and dangerous tempreture curve.This paper not only provides scientific and rational methods for assessment to fire...