And this video, you will learn how to draw some notice that this lab is not including in the default
slabs of the structural design, thus I will model it as separate components.
The whole thickness of the slab will be three hundred millimeters and the concrete cover is 60 millimeters.
The width of the rips will be one hundred fifty millimeters and the spacing between the ribs will be
half a metre.
And some cases we need to draw the dimension of the plan, for example, to find out how many troops
that we need, so we go to more of that and then for dimension and we need to pick two points to draw
the dimension with the offset.
And, of course, you can preserve to enter and exact opposite.
Now, I will define the secondary beam sections that will be on Y axis, which has the higher spans
in a way that makes the main beams and the smaller spans.
So it gives smaller bending moments.
The secondary beam sections will be five hundred millimetres with and the height is the same as the
slab.
Three hundred millimetres.
And I would assume a concrete cover, 35 mm for fire resistance.
For the main beam on x axis, it will be eight hundred millimeters with and the same height also with
the slab, three hundred millimeters.
However, for the parameter beams, the session will be three hundred by three hundred millimeters because
it has a lower amount of loading.
We will draw the ropes using the Anfal commands, which mentioned in a previous video.
I will define the section one hundred fifty by three hundred millimetre squares and also for the concrete
cover, thirty five for fire resistance also.
Now, for drawing the troops, we can use the dimension that we previously drawn for calculating the
number of the ropes, or we can insert the spacing, as we previously learned for this project, the
spacing will be zero point five metre and then it depends on the near edge.
So we can draw the ropes.
Of course, we can use many other added tools like the middle of the copy I will use here the Metro,
for example.
And now the rebels are already.
And after that, we go to that slap on Vimes, I would define a new slap.
The thickness will be 60 millimeters and accurate way of modeling is the one way slab, so a slab transfer
the clothing to the adjacent drips and drabs itself and the ropes transfer the laws to the main beams.
You can see the arrows on each slab and this represent the way of working, so it's one way slap on
the x axis.
It's recommended to add Crosthwaite in the middle of the span that's higher than four meters to connect
the ribs and maintain its deflection, and this cross rope is usually not considered in the analysis,
and it has a minimum reinforcement that will have the same section as the ribs and the same material.
Exactly.
And you can use that type of analysis element for the rib or you can use it as beam.
I assume pinpoint support for the for the cross rep, because I'm not interested in analyzing and designing
the strip, so I don't need a negative moment on the support.
And now our reports lab is already.