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� • -- -__..____m __----_-__._____Y--- --, <br /> ��, <br /> � <br /> . Job nama �'i SNorth Town Center � <br /> .lob# I �7816ASA � <br /> Company: jApple Sign&Awning LLC <br /> Installationl location: �7833 Gall Blvdw,_Zephyrhills,_FI 33641_�_ _�_�; <br /> Section 3107 and 1609 of Florida Building Code 2014 applies: <br /> Chapter 29 of ASCE 7-10(Wind Loads on Other Structures and Building Appurtances)applies: <br /> r <br /> Type of str�ucture: pylon sign <br /> Risk Category: � <br /> d �--�--------� <br /> Ultimate design wind speed,figure C,FBC 2014,section 1609: ��140� mph <br /> Wind stagnation pressure(qz)Table 1609.6.2(1)FBC 2014 36.9 psf <br /> Design win�tl pressure conversion factor 0.77 <br /> Gust effec�factor(G)ASCE 7-10 26.9 1 0.85 <br /> Widest pa of sign face(B) 12.50 <br /> Height of s�gn face(s) 11.08 <br /> Overall hei�ht of sign(H) 11.08 <br /> Aspect rati (B/s) 1.13 <br /> Clearance�ratio(s/H) 1.00 <br /> Force Coefficient Cf from Figure 29.4-1,ASCE 7-10 1.4 <br /> Wind pressure(p)multiplied by design wind pressure conversion factor and Cf 33.8 psf <br /> 2.Calculat wind load and turning moments at base by the provisions of the alternate all-heights method <br /> in Section I1609.6. Wind shall be assumed to come from any horizontal direction and <br /> wind press res shall be assumed to act normal to the surface considered. <br /> Hor Dim Vert Dim=ill Facto Af p F H M(base) <br /> (ft) (ft) ' (sfl (Ibs) (ft) (ft-Ibs) <br /> 12.5 11.1 1.0 138.5 33.8 4684 5.5 25959 <br /> 0.0 33.8 0 0 <br /> 0.0 33.8 0 0 <br /> 0.0 33.8 0 0 <br /> Total 138.5 4684 5.5 25959 <br /> 3.Determine depth of embedment,D in feet <br /> From Table 1806.2,class 4,sandy soil,lateral bearing pressure below grade= 150 psf/ft <br /> Per 1806.3.4 Increase for poles,tabular value time 2 = 300 psf/ft <br /> Assume depth of hole(D) 5 ft (S1)= 1500 psf <br /> -number of posts= 2 Load per post(P)= 2342 <br /> -from p.5-81,Structural Engineering Handbook: ��%� <br /> D=((1.18'P)/(b"S1))"(1+(SQRT(1+(1.88*b`S1*H/P)))) � e <br /> assume b(ft)= 2 <br /> D(ft)= 4 4 • �� � / <br /> Alternatively,Section 1807.3.2.1,Equation 18-1 ,e�� ������q��j� <br /> A=2.34P/S1•b= 1.83 ��� •'GEN$'••.� �ii <br /> D=0.5A((1+(1+(4.36h/A))^0.5)= 44 feet ���]�;'�,� F •.� ei� <br /> � = 0044089 • <br /> 4 Determine required section modulus(in^3)at base 2 � NO ;�r <br /> � . � <br /> � *,� . � <br /> max stress=(P"(H)*12)/section modulus � �r ��s <br /> max stress<allowable stress �,�; ��� <br /> for outdoor signs,allowable stress<(0.66)(yield strength) ��� gTqTE OF � �� <br /> material A53grB ��Q�.� ,C ,OQ;:��',� <br /> yield strength(modulus of rupture) 35000 psi se�s�S•�O G�,• ��e�q <br /> At ba etl minimum se t o)n mo/d(u�lus=yS)) 6.74 in^3 ,���asj���Ae��,, <br /> Use 56"SCH40 steel pipe, section modulus= 8.49 in^3 <br /> Reference :Structural Engineering Handbook,Gaylord&Gaylord editors, <br /> Fourth edition,McGraw Hill,NY 1997 <br /> ASCE 7 10 <br /> The 5th Edition(2014)of the Florida Building Code <br /> Mechanics of Materials,Beer and Johnston,McGraw Hill,NY 1981 <br /> ICBO Evaluation Report No.4016 <br /> SBCCI Compliance Report No.9368 <br /> Standard Handbook for Mechanical Engineers,T.Baumeister and <br /> L.S.Marks,editors,Seventh edition,McGraw Hill,NY 1967 sheet 3 of 3 <br /> John Orlando PE 0044089 <br /> 165 Old Ridge Road <br /> Macon GA 31211 <br /> (478) ��84-2226 <br /> � <br />