Laserfiche WebLink
Client AT&T 570 Colonial Park Dr.Ste#307 Client:ATBT 570 Colonial Park Dc Ste#307 <br /> Site Name:Hv✓y 51 AND 75 Roswell,GA 30075 ■ve ocite Site Name:Hwy 57 AND 75 Rnwell,GA 30075 ■ve ocite <br /> Site Id�10104030 � .. .. . .. . . . .. Site Id:10104030 � -�� � � � ^ ���-� -- <br /> D)-WATER TANK STRUCTURAL ANALYSIS For Bottom Half Spherical Tank: <br /> 1)-�nd Load Reference.ASCE-7-10 Hea�xz =9ft <br /> Risk Category iv table 1.1 pg 3 �cankz =35ft <br /> Velocity pressure x�:=i.3i Exp:=C table 6-3 pg 79 Kzbt -1��9 <br /> exposure coefficient <br /> Topographicfactor KyC:=l.o P9 D�anxz 9�cank <br /> sed6.5]2 26 = 196.11s <br /> ft psf <br /> Wind directionality factoc �: .95 table 6-4 Dcanxz <br /> =1 Cq:=0.5 <br /> Basicwind speed: v:=90 mph figure 6-1 Deankz <br /> z <br /> Importance Factor I:=1.15 table 6-1 pg 77 R Deanxz + Hea�x2 _22 5 ft <br /> tank2 - <br /> BHtank2 � <br /> TankCenter: h:=i21 ft <br /> 1 z r Dtar.k2 Dtank2 <br /> Gust response factoc c:=o.es section 6.5.8 pg 26 Acanxz =2�Rcanxz) �Zasinl zRtanxz y (Rcanxz-Hcankz� <br /> l � <br /> z <br /> Velocityp�essure: q�ra�k:=0.00256�I�x��x�����vz-psf=29.6���psf (Eq6-15) Atank2-226.443ft <br /> Calculate Existing Wind Forces on WaterTank F G C A I K�b`\I <br /> tank2�-4ztank" f [ank2'I Kz I <br /> ForCvlindricalTank: � � <br /> Ftank2=2.812�kip <br /> Htankl�=11.833ft <br /> Deankl = 36ft ForTop Half Saherical Tank: <br /> Dtankl 9z H[ank3�-9�ZSft <br /> 186.213 <br /> ft psf �cank3�=36ft <br /> Dtankl xi�p:=1.34 <br /> =3.042 Cf:=0.53 <br /> Htankl Dtank3 4ztank <br /> = 196.115 <br /> ft psf <br /> Ftankl�-9zcank"G"Cf'Hcankl'Dtanki <br /> Dtank3 <br /> Ftankl=5.695�kip =1 Cf:=0.5 <br /> Dtank3 <br /> 2 <br /> Dtank3 H[ank3 <br /> Rtank3�= + =22.139ft <br /> BHtank3 � <br /> �� �2 � ��Rank3��_�ta�nk3� � <br /> Atank3�-— Rtank3 " 2 a5in Rtank3-Htank3 <br /> tank3 <br /> Atank3=233.318ftz <br /> Ki�P <br /> Ftank3�-4z[ank'G'�f�A[ank3' Kz <br /> Ftank3=3.Ol�kip <br /> Velocdel Job#:204AA10104030L2 Subjecl:Structurel Analysis Velocitel Job#:204AA10704030L2 Subject:Structural Analysis <br /> '19 of 24 By�.AB 20 of 24 By:AB <br /> Date�.6/�612015 936 AM Checked:NT Date:6/16/2015 9:36 AM Checked:NT <br />