Design of column footing on rock with passive rock dowel
Design of column footing on rock with passive rock dowel
(OP)
Hi there,
My current task involves a design of column footing foundation on rock. Due to large uplifting force from wind, the footing size gets quite big to achieve the stability FOS. Therefore I am wondering if it is possible to use passive rock dowel in the calculation for the uplifting force.
I am new to foundation design and I look up online but didn't find too much resources about this. Any recommendation or references that I can use would be appreciated.
Regards,
Eric
My current task involves a design of column footing foundation on rock. Due to large uplifting force from wind, the footing size gets quite big to achieve the stability FOS. Therefore I am wondering if it is possible to use passive rock dowel in the calculation for the uplifting force.
I am new to foundation design and I look up online but didn't find too much resources about this. Any recommendation or references that I can use would be appreciated.
Regards,
Eric





RE: Design of column footing on rock with passive rock dowel
RE: Design of column footing on rock with passive rock dowel
RE: Design of column footing on rock with passive rock dowel
RE: Design of column footing on rock with passive rock dowel
That is probably true for most uses of rock anchors, but when used to resist uplift due to wind, I think the most common way is just to grout them in. In competent rock, it is sometimes much more economical to drill a hole and grout in a reinforcing bar than to provide a big hunk of concrete. Depends a lot on the availability of equipment for the different methods for providing ballast against uplift.
RE: Design of column footing on rock with passive rock dowel
Eric