Laserfiche WebLink
� I Co�ute concrete capacitv <br />QP� _ ��.�4A� ) i�� <br />Usc; <br />�= 0.65 - not tied to the foundation <br />�, = 1.0 norm:�l weight concrete <br />f� = 2500 psi (minimal strength concretc) <br />Compute A� , effective projrctia� nrea of nssumed concrere fi�ih�rc <br />From figure above; <br />A� =(2l�+dm)xt,,. <br />USC; <br />d,� = 1.063" from AISC pagc 4-142 for a 5/S bolt <br />r� = minimum wall thickness of 6" <br />A� _(2 x 10.�" + 1.063) x G= 132.3 in' <br />!, = 10.5" embedment Icngth <br />�P. = 0.G5(I)(4)(132.3) 2500 =17.2 kips or 17.2 / l.6 x I.33 = 14.3 kips <br />:. for a S/8 A307 bolt with a 10.5" embedment, I O.S kips controls <br />similarly far 7/8 dia A307 with !, = 10.5" and d,� = l-7/l6, A� =136 in' &�P� = 17.7 kips <br />ASD = 17.7 / 1.6 x 1.33 = 14.7 kips < 27.0 kips, :. 14.7 kips controls <br />for 1" dia, with l, = 1 l" and rl„ = l-5/8. A� =142 in' & QP� = 18.4 kips <br />ASD = 18.4 / I.G x 1.33 = 15.3 kips (���hich controls) <br />Checkii� Table 5 on sheet S-1 <br />Anchor Di unetcr I3olt Str�nglh Concrete Streneth Max Caoacitv <br />5/S" 14 kips 10.5 kips 10.5 kips <br />7/g" 27 kips 14.7 kips 14.7 kips <br />1^ 35.3 kips 15.3 kips 15.3 kips <br />curr�ocsw�+ Date: <br />& ENGINEERING,INC 6/17/2005 <br />11NCN�AI 4M/�lYll1 � C(LGN <br />Analysis Document: FOUNDATION REPAIR <br />Job Number: Efr427 <br />Page: 19 <br />