Moment restraint offered by floor slabs
Moment restraint offered by floor slabs
(OP)
Hi All
Can anyone give me any pointers on how I begin to estimate the values of moment restraint offered by floors slabs.
The situation is I am looking at a large diaphragm wall for a cut and cover tunnel. The floor slabs will be installed to accomodate the tunnel ventilation fans etc.
I am carrying out a WALLAP analysis and need some inital values to see how the wall behaves before looking into it in more detail.
Units as I understand them are kN/m/m run of wall/rad which I dont quite get either, so if anyone could point me in the right direction that would be great.
Cheers
Can anyone give me any pointers on how I begin to estimate the values of moment restraint offered by floors slabs.
The situation is I am looking at a large diaphragm wall for a cut and cover tunnel. The floor slabs will be installed to accomodate the tunnel ventilation fans etc.
I am carrying out a WALLAP analysis and need some inital values to see how the wall behaves before looking into it in more detail.
Units as I understand them are kN/m/m run of wall/rad which I dont quite get either, so if anyone could point me in the right direction that would be great.
Cheers





RE: Moment restraint offered by floor slabs
RE: Moment restraint offered by floor slabs
Cheers
RE: Moment restraint offered by floor slabs
RE: Moment restraint offered by floor slabs
It is a rotational restraint the software is trying to model, or moment spring, which must be related to the flexural stiffness of the floor slab, no?
RE: Moment restraint offered by floor slabs
RE: Moment restraint offered by floor slabs
I suspect all that will do is create huge bending moments in the wall lower down as the remainder of the wall flex's during construction.
No worries I'll grab one of our Structural guys.
RE: Moment restraint offered by floor slabs
Thanks for your help
RE: Moment restraint offered by floor slabs