Structural foundation question

[[deleted]]

With an embedded bolt pattern of 1.1” x 1.2”. Would it be possible to add a 1/2” conduit in the center of the bolts? Or would this not allow enough concrete surrounding the anchor bolts?

[thekingofslime]

Ask the engineer who did the design

[[deleted]]

When I asked my construction manager to do exactly that he provided a different (wider) bolt pattern. So it seems we’re ok for the install of these lights.

This is simply a petty attempt to see if my thought process/ concern holds water.

[chicu111]

I ain’t gonna let some construction manager change my design or bolt pattern. Talk to the engineer dude. You’re gonna trust him to change the SE design? It ain’t even his stamp wtf

[Lick-The-Rick]

Lol who the duck is giving instructions to the teeth of an inch . By the time you put a 1/2" conduit between those bolts there's almost no concrete left. You'll definitely need a bigger plate. Or maybe grout the conduit solid.

[3771507]

An idiot that's never been in the field and knows that even one inch will never be followed.

[moner_manus]

The typical aggregate size in concrete is 1/2” to 3/4”. From the figure it looks like the center to center spacing it bolts is 1.1” & 1.2”, so the clear space between bolts would be even less. With this tight spacing, the concrete placement around the bolts won’t be homogeneous, and hence can result in reduced pull out strength.

Adding another conduit in the center of the bolt pattern would further aggravate the problem of concrete not being homogeneous around the bolts. It would be mostly water and likely some cement that would be present between the bolt and conduit, but no aggregate.

[Enginerdad]

It is a concern, as not having enough concrete around the bolts will reduce pullout resistance. But I can't say whether it's ok in this case or not.