| China is one of the countries that damaged by the typhoon,especially in the southeast coastal area,the loss caused by the typhoon is very huge every year.Researches indicated that the low-rise buildings collapsed and damaged by the typhoon is an important part of disaster losses.Therefore,researches on low-rise buildings on wind load has important significance.Currently,the main methods to study wind-loads on low-rise buildings are field measurement,wind tunnel experiment and numerical simulation.It is important to verify and validate the results of wind tunnel experiments and numerical simulation,because they can not simulate the characteristics of Wind-Field precisely.Since the field measurement is just at initial stage in China,it is necessary to study the wind load characteristics on low-rise buildings more in-depth through field measurement.This paper built a low-rise building in Zhejiang University of Technology as an experimental base.Wind-field characteristics and wind pressure are measured by the field measurement.According to data of field measurement,the wind-field characteristics and wind pressure on the roof are acquainted.And the results of field measurement are compared with that of numerical simulation.The main work of this article includes the following content:(1)Summarized the methods and the status of the research on wind-load of the low-rise buildings,and analyze the theoretical basis of the field measurement and the numerical simulation.(2)Identify the measurement program of wind-field characteristics and wind pressure of the low-rise building.Analyze the data and research the wind-field characteristics and the law of wind pressure on roof.(3)Set up the model of the low-rise building.Through the model’s numerical simulation,analyze the pressure characteristics and compared with the data of field measurement.Set up the model of the low-rise building without the parapets and compare the results of numerical simulation with that of the original model. |
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