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il <br /> Forl bolts connecting steel angles to crossbars <br /> Bolt tension above is not carried as shear <br /> Shear normal to sign face= 91.1 Ib shear/bolt <br /> � Weight of EMC is carried in bottom angles, not in bolts <br /> II horiz shear in bolts=Vy/4 bolts= 12.3 Ib shear/bolt <br /> IIResultant shear=((normal shear)Z+(Vy shear)Z)l�Z= 92 Ib shear/bolt <br /> For ASTM A307 bolts <br /> AISC Steel Manual, 13th ed,Table J3.2 <br /> Nominal tensile stress, Fnt= 45 ksi <br /> Nominal Shear Stress, Fnv= 24 ksi <br /> SZ= 2.00 <br /> for bolt dia= 0.25 inch <br /> Bolt area= 0.0491 sq in <br /> ft=axial tension/bolt area/1000= 0.00 ksi <br /> fv=resultant bolt shear/bolt area/1000= 1.87 ksi <br /> For combined tension and shear ', <br /> F'nt=1.3 Fnt-S2Fnt fv/Fnv<=Fnt ��I <br /> F'nt= 45.00 ksi <br /> F'nt/S2= 22.50 ksi>=ft;OK <br /> Fnv/S2= 12 ksi>=fv;OK <br /> 4 of 6 9/12/16 <br />