Study On Numerical Simulation Of Wind Pressure And Wind-Resistant Design Of Low-Rise Rural Buildings In China

Typhoon resistance of low-rise rural buildings is a very important problem to the south-east coast area of our country. So it's worth revealing the mechanism of wind-induced damages to them by studying on the pressure distribution. Then, we can make great contribution to the engineering practice.The computational numerical simulation method has been applied for studying the wind flow around, and the wind-induced pressures distribution on the surface of low-rise buildings with gable roof induced by three-dimensional surface boundary-layer air flow in this paper. On the basis of the existing research achievement, firstly, the fundamental equations and numerical discretization and solution approaches for turbulent wind flow based on the averaged Navier-Stokes equation and RNG k -ε turbulence model were established;Secondly, numerical example a low-rise double roofed building model was considered and the results were analysed. Therefore, deeply studied the utilizing of the computational numerical simulation method to predict wind load on low-rise buildings.On the fundament of above and field investigations of the buildings damage in the areas of Typhoon disasters, the main factors that effect the wind-resistance capability of low-rise buildings have been analysed , the wind-resistance design method and mufti-criterions founded with the needs of different reliabilities have been discussed on low-rise buildings, Then put forward feasible wind resistant and reinforce measures. Thereby prove the importance of draft wind resistant plan code of rural house.