Transcription of Wind calculation BS6399 - Online Structural Design
1 Evo Design xxxx TOWERDESIGN REVIEW REPORTL ocation xxxWIND LOADS calculation PER BS 6399-2 FOR A BASIC WIND SPEED OF 25 m/s Vb25 mmmmssssbasic wind speed Kb1building type factor in accordance with BS 6399-2 Table ramed building with Structural walls arround lifts and stairs only ( office buildings of open plan or without partitions) Hr30mmmmReference height HeHrEffective height to be considered in the calculationsBasic wind speed calculation in accordance with BS 6399-2 Section S100site altitude above sea level in meters - Section Sa+1 Saltitude factor= Sd1direction factor - Section for unknown wind direction Ss1seasonal factor - Section Sp1probability factor - Section Vs VbSaSdSsSp= mmmmssssEffective wind speed calculation in accordance with BS 6399-2 Section and building factor - Section - Table 4 Ve VsSb= mmmmsssseffective wind speedfor building heights larger that the width some reduction in wind loads may be
2 Obtained by dividing the building into a number of parts - in our case the reduction is neglijable. L51mmmmbuilding length W25building widthEvo Design xxxx TOWERDESIGN REVIEW REPORTL ocation xxx= pressure coeff. - longitudinal per BS 6399-2 -Table 5 Longitudinal coefficients - values in Table 5 1mmmmexternal pressure coeff. - transversal per BS 6399-2 -Table 5 Transversal coefficients in Table 5 accordance with BS 6399-2 Figure 4 pressure per BS 6399-2 Section qs Ve mmmmssss 2 PaPaPaPain accordance with BS 6399-2 Formula 1=qs 103 PaPaPaPa accordance with BS 6399-2 Formula 2= accordance with BS 6399-2 Formula 2= Design xxxx TOWERDESIGN REVIEW REPORTL ocation xxx accordance with BS 6399-2 Formula 2= accordance with BS 6399-2 Formula 2=
