struct_eeyore
Structural
Hi all,
Section 1810.2.2 of the IBC stipulates that piles must be braced for stability by providing grade beams at ~ orthogonal directions to the pile cap/gb intersections - i.e. free-standing piles are not allowed - exception 1 appears to require that the pile is embedded in soil over its entire length. Prior to building houses on elevated piles, this would have been my approach. I'm now working on single family residences in VE and coastal A zones. Going through the FEMA P55 coastal construction manual, the use of grade beams appears counter indicated as it induces greater scour depths. In my particular case, the piles are augercast (and CIP above grade). I'm at odds about how to proceed. Would the answer be to cast concrete beams at the top of the piles above grade to create a portal? This might be prohibitively expensive... Any and all input appreciated.
Section 1810.2.2 of the IBC stipulates that piles must be braced for stability by providing grade beams at ~ orthogonal directions to the pile cap/gb intersections - i.e. free-standing piles are not allowed - exception 1 appears to require that the pile is embedded in soil over its entire length. Prior to building houses on elevated piles, this would have been my approach. I'm now working on single family residences in VE and coastal A zones. Going through the FEMA P55 coastal construction manual, the use of grade beams appears counter indicated as it induces greater scour depths. In my particular case, the piles are augercast (and CIP above grade). I'm at odds about how to proceed. Would the answer be to cast concrete beams at the top of the piles above grade to create a portal? This might be prohibitively expensive... Any and all input appreciated.
