5306 W McFadden Ave - Plan - Laserfiche WebLink

Home Browse Search

St. Barbara Catholic School Project No.: D-6289-01 CITY OF SANTA ANA Planning and Building Agency may, lS. Approved FOR PERMIT ISSUANCE Mat footing should be provided with reinforcement of #4 bars 12 inches center to center each way cross pattern. Total settlement of the new structure will be less iiat Me 2:inches Date: and differential settlement will be less than 1/4 of an inch over a horizontal distance of about 30 feet. Other aspects of the design, including rigid mat thickness and reinforcement should be determined by the project structural engineer. New Solid Wall Signage New solid wall signage structure may be supported by conventional continuous footing 12" wide and 18 inches deep continuous footings or 3'x3'x24 inches deep spread footing bearing on competent compacted subgrade soil under the footing and may be designed for an allowable bearing value of 2,000 pounds per square foot. The basic allowable bearing values may be increased by 200 psf for each additional foot of depth and 100 psf for each additional increase in width to a maximum of 2,500 pounds per square foot. Recommended bearing values are for dead plus live loads and may be increased one-third for combined dead, live, and transient forces such as wind load and seismic forces. Footings should be embedded 24 inches or more below the finish grade and should have minimum reinforcement of 2#4 bars at top and 2#4 bars at the bottom. It is recommended however, that all foundations be reinforced as per structural design. Isolated column footings should be connected to other foundation elements with reinforced grade beams. It is estimated that provided all footings are bearing on properly compacted subgrade soil total settlement will be less than 1/2" and differential settlement will be less than 1/4" over a horizontal distance of 30 feet. IN