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MECH HARDSTAND FOUNDATION <br /> Pole Foundation Gravity and Lateral Design11111 <br /> Per[BC 2015 Section 18073 <br /> Input > _ - <br /> P� • <br /> Service Vertical Load, Pv 250 lbs <br /> h (I <br /> Service Lateral Load,PH 250 lbs ry <br /> Height of PH Above Ground Surface, h 2.0 ft <br /> Allowable Vertical Bearing Pressure, o,,, 1500 psf <br /> Allowable Lateral Bearing Pressure = <br /> Per Foot Below Grade, 7Kp 300 psf/ ft` rrrrwwca Si <br /> ecODI noel d <br /> Output <br /> Mn Pole Diameter for Vertical load, bMIN = ft `=i <br /> Pole Diameter Override, 0 1,0 ft <br /> Figure 1 <br /> Worm Allowable Lateral Bearing Pressure <br /> for Non-Constrained Pole, Si = 30d' psf r 5,• n.,• <br /> ( Yk► d73 <br /> T TICr'4f* <br /> A = 1.9 ' ft <br /> - � 1111 <br /> 1 lIon-Constrained Pole Depth Required,d = 3.517 ft <br /> 2 Constrained Pole Depth Required,d = 2.0e ft Figure 2 <br /> 1 f[on-Constrained: No constraint provided at the ground surface, such as a ngid floor or <br /> rigid ground surface pavement, and no lateral constraint is provided above the ground <br /> surface, such as a structural diaphragm. [per IBC 2009 Section 1807.3.2.1] <br /> 2 Constrained: Constraint is provided at the ground surface, such as a rigid floor or rigid <br /> ground surface pavement. [per IBC 2009 Section 1807.3.2.2) <br /> Limitations: Pole foundations shall not be used to provide lateral support for structural or <br /> non-structural materials such as piaster, masonry or concrete unless adequate bracing is <br /> provided to limit deflections as required. <br /> Allowable Increases: The values generated by the equations above are intended to <br /> minimize movement at the ground surface. If short-term ground surface movements up to <br /> 1/2' are acceptable for the structure under consideration, IBC 2009 Section 1805.3.4 <br /> permits a 100% increase in lateral bearing pressure,'Kp. Additionally, an increase In,l(p of <br /> one-third is permitted when using the alternate load combinations in IBC 2009 Section <br /> 1605.3.2 that include wind and earthquake loads. <br /> Badcfi l Requirements: See IBC Section 2009 1807.3.3 for backfill requirements at pole foundations. <br /> va«s w <br /> COFFMAN MeteM. <br /> OD no. <br /> 04/0 NGINEERSa Boeing Flightline Stall 113 criadd Page 10 <br /> two <br />