1995 S Standard Ave- Bays - Plan

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IniandEngineeringTechnologies Inc November 20, 2023 Mr. Vince Benitez Specialized Testing 10600 Pioneer Boulevard Santa Fe Springs, CA 90670 CITY OF SANTA ANA Planning and Building Agency 41665 Reagan Way Ste. E Murdeta, CA. 92562 Ph: Apved FbR:ftfN 94t 4_RJ1ANCE Pro'ect No. 23-5447 MastedID: Date: Subject: Geotechnical Recommendation Letter for Bearing Pressure at the Behr Paint Facility Located at 1801 East St. Andrew Place, City of Santa Ana, County of Los Angeles, California. Introduction Pursuant to your request, Inland Engineering Technologies, Inc. (IET) presents this geotechnical letter for bearing pressure at the Behr Paint Facility Located at 1801 East St. Andrew Place, City of Santa Ana, County of Los Angeles, California. It is IET's understanding that the existing building will have racking installed inside the warehouse. IET observed core holes drilled by a contractor and retrieved one subgrade soil samples on November 10, 2023. Based on IET's limited observation, the subgrade soils were primarily of silty sand material. The soil samples indicated a minimum relative density of 90 percent. Geotechnical Recommendation The subgrade soils immediately below the floor slab may be designed for a maximum allowable bearing capacity of 2,5001b/ft2. The bearing capacity value may be increased by a one-third for wind load and seismic load. The bearing capacities should be re-evaluated when loads and footing sizes have been finalized. Lateral forces on footings may be resisted by passive earth resistance and friction at the bottom of the footing. Foundations may be designed for a coefficient of friction of 0.35, and a passive earth pressure of 250 lb/ft2/ft. The passive earth pressure incorporates a factor of safety of about 1.5. When combining passive and friction forces, passive resistance should be reduced by a one-third.