When designing a Bell & Shaft drilled pier for a warehouse with a mezzanine floor, is it too conservative to include the weight of the grade beam & pier caps in the dead load for the pier design? Is it enough to just include Roof & mezzanine floor dead load? My thoughts are that even though the grade beams is resting on the soil, the grade beam needs to be designed as spanning from pile to pile. Since the grade beam is spanning from pier to pier, the pier needs to be designed to include the weight of the grade beam and cap. The entire span of the grade beam is not included, just the tributary length of the grade beam effecting the pier. Any suggestions/ comments are appreciated.
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