Can this masonry bearing wall be installed?

[H57]

I am working on a project that involves cutting an opening in an existing cast in place concrete floor system (mild reinforced pan joists). Our intent was to utilize a new load bearing concrete masonry wall to support the existing pan joists. In this scenario the wall would be built with vertical steel to a bond beam that is located directly below the existing joists. After the masonry walls are installed the opening in the floor would be cut.

The contractor has indicated that he is unable to construct a wall like this. Can any of you provide input? Can this be done or am I asking the impossible? If it can't be done would there be a better way to do this?

 

[MiketheEngineer]

Its hard to get the new wall up to the height of the floor pan - and don't forget that the concrete will shrink slightly. How do you form that up and get all the concrete in place?

Most guys would prefer to use steel columns and beams and then shim them in place.

Have fun.

 

[BadgerPE]

The issue here may be that it is pretty tough to get the top layer of masonry on with the vertical bars protruding through them. What we have done in the past is provide the bond beam course 8-10" below joist bearing elevation. Then when they grout the bond beam full, they cast plates with Nelson studs into the bond beam. A steel beam is then slid into place and welded to the plates for stability. Face shells are then laid up alongside the steel beam to match the CMU.