5306 W McFadden Ave - Plan - Laserfiche WebLink

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St. Barbara Catholic School Project No.: D-6289-01 Other aspects of the design, including minimum reinforcement, CITY OF SANTA ANA Planning and Building Agency Approved FOR PERMIT ISSUANCE embedment, additional posts and beams, and the need for interior footings, are to be d�tL ffi d'by the Date: project structural engineer. New Monument & Lunch Shelter A new monument structure and lunch shelter may be supported by cast -in -place concrete caisson foundation (flagpole footings). Cast -in Place Concrete Caissons: Caisson foundation (flagpole footings) may be drilled at least 7-feet deep into the competent subgrade material. Cast -in -place concrete caissons, 12-inches in diameter, may be designed for an allowable bearing value of 2,500 psf or for an average frictional resistance of 250 pounds per square foot. Either skin resistance or end bearing will provide adequate foundation support for the monument. For lateral support, a passive capacity of 250 pounds per square foot per foot to a maximum of 4,500 psf may be used. Uplift Capacity may be taken as 70% of shaft capacity plus weight of the caisson. Caissons may be connected with grade beam minimum 12 inches wide and 12 inches deep. The span of the caissons depends on the structural load and the project structural engineer should design for the spacing of the caissons. Caisson drilling should be subject to observation by this office to confirm the conditions encountered are consistent with the conclusions and recommendations of this report, and to make any appropriate modifications if they are necessary. The bottom of the caisson foundations should be cleaned from loose material prior to pouring concrete. Floor Slab (If Any) Based on field observation and test results, the subgrade soils are non -expansive, 17