| Roof insulation damage in large scale terminal buildings under strong wind happens frequently, which is not only related to the circumstance where the build i ng located but also related to the configuration of building itself which influence the micro wind climate and the way building roof response the wind pressure. 3D models of environmentalparametres of terminal complexes were extracted out based on key elements such as efficiency of flows organization at first, and the simulation plate-form was established; Then the models were simulated in a Computational Fluid Dynamics(CFD) plate-form and the simulation results about distribution of wind coefficient over roof surface were analyzed in order to find out the influence of building forms. The roof damage accident of Beijing T3 terminal is taken as a case in the research process. The wind coefficient and wind pressure with 3 different kinds of eometryparameter were studied and analyzed. The paper ended with 2 suggestio ns : on the one sidein the design stage accoding to the data analysis of wind coeffic ie nt and wind pressure distribution on terminal roof from simulation platform, more rational design recommendations are given about the roof arch height, span cantilevered roof and roof edge curvature plane, 3kinds of geometry parameters; on the other side according to the simulation platform data analysis the weak areas against wind pressure of existing terminal roof could be forcasted and effect ive proposals were given to strengthen the windward edge and wind damage prevent io n performance of metal roof. |
