Hi,
I have to remove a brick pillar extend an existing steel beam by 150mm to the inner leaf of a cavity wall. (Current beam 178x60mm PFC) I've been advised by an engineer to to stitch a new 700mm long 125x65x15mm PFC to the inside of the existing using x4 M12 8.8 high tensile steel bolts or if I want for peace of mind use x 4 M12 10.9 high tensile steel bolts and use a 450x150x100mm padstone. Would this be ok? The other side is resting on a brick pillar.
I have to remove a brick pillar extend an existing steel beam by 150mm to the inner leaf of a cavity wall. (Current beam 178x60mm PFC) I've been advised by an engineer to to stitch a new 700mm long 125x65x15mm PFC to the inside of the existing using x4 M12 8.8 high tensile steel bolts or if I want for peace of mind use x 4 M12 10.9 high tensile steel bolts and use a 450x150x100mm padstone. Would this be ok? The other side is resting on a brick pillar.