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SITE STRUCTURES Project Everett Office Building sheet 2 <br /> 10511 19th Ave SE, Suite C date 2/7/08 <br /> Everett, WA, (425)-357-9600 prj. no. S-07-188 <br /> PRECAST HOLLOW CORE PLANK REVIEW <br /> Lid Data <br /> Soil Desity 125 pcf <br /> Soil Cover depth over lid 1.75 ft <br /> Plank design clear span 24.25 ft <br /> Design Uniform Live Load 150 psf <br /> Design Superimposed Load 368.75 psf <br /> Plank capacity based on uniform superimposed load tables <br /> see appendix A sheet A4 for load span tables <br /> Plank span 28 ft <br /> No of tendons 9 <br /> Allowable superimposed loads 343 psf <br /> Allowable superimposed loads base of design span of 24.50 ft <br /> Based on flexural capacity 448 psf <br /> Based on shear capacity 392 psf <br /> Plank capacity based on truck load charts <br /> see appendix A sheets A2 &A3 for load span chart <br /> Plank span 24.5 ft <br /> No of tendons 9 <br /> Allowable soil cover without knee-walls 0.8 to 2.2 ft <br /> Allowable soil cover with knee-walls 0.8 to 3.5 ft <br />