Study on Wind Load Shape Coefficient of Low-rise Buildings with Hip Roof

Based on Reynolds-averagedNavier-Stokes and SSTk-ω turbulence model,the wind pressure on the hip roof of low-rise buildings is simulated and calculated in the paper. Firstly, the shape coefficient on the roof of TTU(Texas Tech University)low-rise buildingmodel is investigatedwith numerical simulation technique.Comparedwith otherexisting data, the reasonable agreementbetween the numerical results and previous data confirms that the computational resolution here is reliable.Then,the effectsof the building's shape parameters(pitch and eaves)upon the shape coefficients on the roof of low-rise buildings are analyzed by using numerical simulation under differentwind directions. Simultaneously, the change rule of the roof shape coefficientwith respectto the shape parameters is summarized,providing a reference for the wind-resistant design of the low rise buildingswith hip roof.