WebApr 27, 2012 · The wind-load factor is then applied to determine the design wind pressure. For this edition (05), the ASD wind-load factor is 1.0 and the strength design wind-load factor is 1.6. ASCE 7-10 uses three different basic wind speed maps for different categories of building occupancies. WebFor towers with square cross-sections, wind forces shall be multiplied by following factor when wind is directed along a tower diagonal: 1+ 0.75* e <= 1.2. 5. Wind forces on tower appurtenances such as ladder, conduits, lights, elevators, etc., shall be calculated using appropriate force coefficients for these elements. 6.
CALCULATION OF WIND LOADS ON STRUCTURES …
WebThe Topographic Factor, Kzt, accounts for effect of wind speed-up over isolated hills and escarpments (Sect. 6.5.7 and Fig. 6-4). Kzt = … WebJul 1, 2010 · Kzt – The topographic factor depends on the gross terrain. As wind speed increases with elevation of a building, so to, wind speed increases with height up a hill. For flat terrain, this value is approximately 1.0. Conversely, the factor can approach 3 on a hill. Kd – The direction factor ranges from 0.85 to 0.95. filedweb
Wind Load ASCE 7-05 VS ASCE 7-10 - How To Engineer
WebKzt = (1+ K1 K2 K3) K ... 26.8.2 Topographic Factor The wind speed-up effect shall be included in the calculation of design wind loads by using the factor K zt: K zt = (1 + K 1 K 2 K 3) 2 (26.8-1) where K 1, K 2, and K 3 are given in Fig. 26.8-1. If site conditions and locations of structures do WebOur wind load factors map is a resource for engineers designing structures for wind loads in Seattle. Our map shows wind exposure and terrain adjustment factors based on the … WebNov 11, 2015 · This spreadsheet can be used to help calculate wind topographic factor Kzt according to ASCE 7-10. Calculation Reference Design for Wind Wind Topography ASCE … filed wills