Floor plan layout and loading plan of 2nd floor are shown below. We are going to use following features while modeling on this floor.
→ Overlay
→ Slab edge & slab piece
→ Slab opening
→ Copy from
→ Circular & arbitrary & rectangular column
→ Column tranfser by beam
→ Column transfer by slab
→ Shear wall & analytical wall
→ Shear wall opening
→ Beam & analytical beam
→ Area loading & duplicate
→ Line loading
If the reference drawing of 2nd floor is not overlayed;
Go to 2nd Floor → Overlay
Select 2nd Floor linked drawing
Unselect ( if selected) other linked drawings
Click OK
Drawing Slab
Draw slab edge using slab edge command as explained before.
Drawslab piecesshown in reference drawings as expained before.
using slab piece command
Or
Go to 2nd Floor → Copy From
Select Slabs (and openings) to copy
Select 3rd floor as source
Click Select Graphically
Copy the same slab pieces from the floors above.
Draw the remaining slab pieces using slab piece command.
Edit the thickness, offset, clear cover properties of slab objects in spreadsheet
You can copy slab pieces and slab openings at the same time.
There is a transfer slab in 2nd floor. Draw it as slab piece and edit its thickness as 13”.
Edit the thickness, offset, clear cover properties of slab objects in spreadsheet
Drawing Opening
Draw the openings using commands shown on the right.
Or
Copy openings which are the same with floors above if you did not copy at the same time with slab pieces.
Drawing Columns
There are column transfers in this floor level.
Go to 2nd Floor → Overlay
Select 1st floor linked drawing
Unselect 2nd floor linked drawing
Select 3rd floor → Columns
Now you see the columns below for 2nd floor.
Copy the columns (and shear walls) which are the same as floors above
. Be aware that some columns do not continue at 2nd floor. The loads carried by discontinuous columns are transferred to other columns by transfer beams and transfer slab.
Go to 2nd Floor → Copy From
Select Columns (and shear walls) to copy
Select 3rd floor as source story
Click Select Graphically.
Draw the columns that are not exists in floors above using commands belowshown on the right.
Drawing Shear Walls
Shear walls which are the same with floors above can be copied at thw the same time with columns.
Go to 2nd Floor → Copy From
Select Shear walls object to copy
Select 3rd floor as source story
Click Copy All
Update the project
Or draw the shear walls.
Go to Shear Walls
Click Shear Wall
Draw
shear wall
Select the material of the shear wall
Go to Analytical Walls
Click Analytical Wall
Draw analytical lines
You must draw a straight line from mid point of one edge to mid point of other edge of shear wall. If shear wall is not straight you must draw analytical walls for each directions of shear wall parts.
Enter thickness of each analytical wall
Do not forget to draw shear wall opening with dimensions below.
Go to analytical wall which the opening will be drawn
Click elevation view
Click Wall Opening → select rectangle shape
You must consider point locations on plan and elevation view.
Draw a rectangular opening with dimensions above.
Click Show Story to go back to plan view.
Be aware that there is a shear wall below for 2nd floor that does not continue at floors above.
Draw that shear wall as explained beforeabove.
Go to 2nd Floor → Shear Walls
Click Shear Wall
Draw the shear wall which does not exist in floors above
Click Spreadsheet Data → Analytical Walls
Click Analytical Wall
Draw analytical wall linked to the shear wall
Click No Break Pts button of the analytical wall
Draw break points
Edit the thicknesses and offsets of analytical wall parts
Drawing Beams
There are tranfer The beams of above floors are exists in the 2nd floor, also there are transfer beams in the 2nd floor .
You can copy beams from 3rd floor.
Go to 2nd floor → Copy From
Select beams object to copy
Select 3rd as source story
Click Copy All
When you copy beams, analytical beams are also copied.
Click Draw Beam and draw the beams
Enter material propery and depth
Go to Analytical Beams
Click Draw Analytical Beam and draw the analytical lines of the beams
Drawing Load Geometry
You can copy he same loads (i.e .corridor load) from 3rd floor or you can draw load geometry manually.
Go to 2ndFloor → Copy the link beams between shear walls from the floors above using Copy From button.
From
Select Shear walls object to copy
Select 3rd floor as source story
Click Select Graphically
Select the load geometries which are the same according to the loading schedule
Then
Go to Loads
Click Area
Draw residential/terrace/corridor areas according to the loading schedule
You will add superimposed dead loads and live loads to the same areas but you do not need to draw again.
Right click on the areas in the spreadsheet
Duplicate areas
Select load cases appropriate to the loading schedule
Click Line
Draw facade load lines and parapet load lines
Select load cases of the line loads.
You can overlap load areas, AEC | BOLT Building Design Suite will calculate the sum of the loads. So you can reach 100 psf live load by intersection 40 psf live load and 60 psf live load area.
You can see the loading geometry by right clicking and selecting in the AutoCAD.
Modelling of 2nd floor is completed. Updated 3D view is shown below.
