Anchor (80-90)
1
Anchor Bolts Calculations "90/150/10 meter Antenna Tower" Footing No. Fy Fx Fz kN kN kN #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! #REF! At Center Pt. #REF! #REF! #REF! Anchor Bolt Design according to ANSI/ASCE 10-90 BOLT DIAMETER CALCULATION Required Anchor Bolt Area page 20 eq. 9.4-2 Required Shear Area page 21 eq. 9.4-4 D (downthrust load) = 0.00 Nt T = #REF! Nt Fy = 490 MPa Fu = 586 MPa V = #REF! Nt 0.55 page 23, fig b As = #REF! Asv = #REF! Factor of safety : 1,5 (the anchor bolt area is increased by 1,5) As = #REF! Asv = #REF! No. Of Anchors 12 Nominal Diameter (d) = #REF! mm Required Shear Diameter (dv) = #REF! mm Chosen Diameter 30.00 mm #REF! BOLT LENGTH CALCULATION 1.1 MPa page 22, 9.5.2 f = 0.65 25 MPa Effective length (bottom), W = 463 mm Effective stress area (Ae)= #REF! Acc. To figure 1 N (distance between anchor bolts) = 400 mm Foundation Chimney Width (min) = #REF! mm Resisting Load = #REF! Nt Acc. To figure 1 Factor Of Safety = #REF! > 1,0 OK. #REF! mm page 22, 9.5.2.1 #REF! mm ASCE Manuel 52 #REF! mm > Mv/3 OK. ASCE Manuel 52 #REF! mm Screw Thread Length (Up) : 180 mm Screw Thread Length (Bottom) : 100 mm distance between top of rebars and top o 50 mm Total Anchor Bolt Length #REF! mm .400 mm Supplied Length Figure 1 Figure2 As = T/ Fy + V / (m0,85Fy) Asv = (V-0,3*D) / (m0,85Fy) m = mm ² mm ² mm ² mm ² spullout = 0.33 f (f'c) 1/2 f'c = mm ² Mv(shear) *2 + N Lembeded = 12d (Fu/(58y) MV = 1,8d Fu/(f'c 1/2 ) MV Shear = 1,8dv Fu/(f'c 1/2 ) Lmin = Lembeded+MV Ae As = π 4 ( d− 0.974 n ) 2 w Figure 1 N Fx²+Fz² V = Mv Lemb 100 mm 180 mm Lmin
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Transcript of Anchor (80-90)
Anchor Bolts Calculations "90/150/10 meter Antenna Tower"Footing No. Fy Fx Fz
kN kN kN#REF! #REF! #REF! #REF!#REF! #REF! #REF! #REF!#REF! #REF! #REF! #REF!#REF! #REF! #REF! #REF!
At Center Pt. #REF! #REF! #REF!Anchor Bolt Design according to ANSI/ASCE 10-90
BOLT DIAMETER CALCULATION Required Anchor Bolt Area page 20 eq. 9.4-2 Required Shear Area page 21 eq. 9.4-4
D (downthrust load) = 0.00 Nt T = #REF! Nt Fy = 490 MPa Fu = 586 MPa V = #REF! Nt
0.55 page 23, fig b As = #REF!Asv = #REF!Factor of safety : 1,5 (the anchor bolt area is increased by 1,5)As = #REF!Asv = #REF!No. Of Anchors 12 Nominal Diameter (d) = #REF! mm Required Shear Diameter (dv) = #REF! mm Chosen Diameter 30.00 mm #REF!BOLT LENGTH CALCULATION
1.1 MPa page 22, 9.5.2 f = 0.65
25 MPa Effective length (bottom), W = 463 mm Effective stress area (Ae)= #REF! Acc. To figure 1 N (distance between anchor bolts) = 400 mm Foundation Chimney Width (min) = #REF! mm Resisting Load = #REF! Nt Acc. To figure 1 Factor Of Safety = #REF! > 1,0 OK.
#REF! mm page 22, 9.5.2.1 #REF! mm ASCE Manuel 52 #REF! mm > Mv/3 OK. ASCE Manuel 52 #REF! mm
Screw Thread Length (Up) : 180 mm Screw Thread Length (Bottom) : 100 mm distance between top of rebars and top of chimney 50 mm Total Anchor Bolt Length #REF! mm < 1.400 mm Supplied Length
Figure 1 Figure2
As = T/ Fy + V / (m0,85Fy)Asv = (V-0,3*D) / (m0,85Fy)
m =mm²
mm²
mm²
mm²
spullout = 0.33 f (f'c)1/2
f'c =
mm²
Mv(shear) *2 + N
Lembeded = 12d (Fu/(58y)MV = 1,8d Fu/(f'c1/2)MV Shear = 1,8dv Fu/(f'c1/2)Lmin = Lembeded+MV
Ae
As= π4 (d−0 .974n )
2
w
Figure 1
N
Fx²+Fz²V =
Mv
Lemb
100 mm
180 mm
Lmin
