مرکز منطقه ای اطلاع رساني علوم و فناوري - Statistical evaluation of the wind loads as proposed by the Turkish standard TS 498

Abstract :

In this study, wind loads resulting from wind speeds are examined by using statistical methods. For this purpose, the wind speed data are collected from different regions of Turkey. In addition to these data, the published data and information in the international literature are also taken into account in comparing the wind load statistics. The ratios of mean to nominal load values are determined for calibration purposes. While the mean values of wind loads are computed by considering the underlying uncertainties, the nominal values of wind loads are taken directly from the Turkish standard TS 498 (Design Loads for Buildings). Although some of the loads acting on a structure, such as dead and live loads are independent of the geographical location of the structure, environmental loads like wind load are highly dependent on the regional location of the structure. In order to determine the wind load statistics to represent the whole Turkey, it is required to select some reference regions. In this study, eleven regions are chosen. At the end of the analyses, it is observed that although in some regions the values given in TS 498 are sufficient, they are overestimated in some other regions. In addition, it is necessary that the calculation method of the wind load proposed by TS 498 should be revised and also the nominal values of wind loads should be modified.