![]() ![]() ![]() ![]() When necessary, piles are used to transmit the load to a deeper soil stratum with a higher bearing capacity to prevent failure due to undercutting of the foundation by scour from floodwater flow at high velocities, and to elevate the building above required flood elevations. Piles are also used to isolate the structure from expansive soil movements. Post-and-pier foundations can provide an economical alternative to crawlspace perimeter wall construction. The design procedures and information in this section covers: It is common practice to use a brick curtain wall between piers for appearance and bracing purposes. soil-bearing capacity and footing size Ĭoncrete design procedures generally follow the strength design method contained in ACI (American Concrete Institute)-318 (ACI, 1999), although certain aspects of the procedures may be considered conservative relative to conventional residential foundation applications.For this reason, some supplemental design guidance is provided when practical and technically justified. Masonry design procedures follow the allowable stress design method of ACI-530 (ACI, 1999). ![]()
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