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Design of solid slabs

 

 Click the toolbar icon  or from the main menu (Slabs -> Solid slabs) or type the command ssd

 

 

Floor slabs

 

Parent floor

The level accommodates beams and slabs

Child slab

 The portion of the floor fully or partially surrounded by beams

Strip

 Virtual structural model representing an edge to edge beam, its members are the slab strip and its supports are the beam floors.

       

 

 

 

Floor levels

 

The tree

As shown below , each tree node representing a floor subtree, child slabs and structural analysis strips are the branches of the said subtree. 

 

Parent floor

 

 

 

Current floor Current selected floor
Level Level of the floor
 Name Friendly name to identify the floor 
 Collapse tree To collapses the current TreeNode and its child nodes
 Add or Modify To add/modify data of current selected item

 

 

Child slabs

 

 

Current Slab Current selected slab
Dim. Child slab Dimensions 
Loads for design of beams Loads generated by slabs for later use in design of beams, for more information click here  
Add or Modify Adding of modifying data

 

 

Design strips information

 

 

 

Current Strip Current selected strip
Ends. Status of left and right ends
Comment Optional comment 
Add or Modify Adding of modifying data

Open

 Open strip record

   

 

Design options

 

 

 

Unit convertor To launch unit convertor
Select design code Select design code
No change None of below couple of options
Fix number of bars .. Maintain number of bars along the strip
Fix bar dia. .... Maintain diamter of bars along the strip
Fy kg/cm2 Steel yield stress
Fcu Kg/Cm2 Concrete yield stress
Min. # of bars/m Minimum number of bars per strip
Max # of bars/m Maximum number of bars per strip
Main bars diameter Main reinforcement bars diameter
Sec. bars diameter Secondary reinforcement bars diameter.
Main conc. cover CM Concrete cover at tension zone
Sec. conc. cover CM Concrete cover at compression zone

  

 

Status bar

 

 

 

 

Status bars messages , for more information click here

 

 

To exit current module and return to main window 

 

 

Adding and modifying child slabs data

 

 

 

 

 Parent floor  Parent floor

  

 

 Live load [kg/m2] Live loads
 Flooring [kg/m2] Superimposed dead loads
 LL * Factor Live load factor
 DL * Factor Dead load factor

 

 

EGY Coefficients (in case of using Egyptian code)
Grashof Coefficients (in case of using Egyptian code).
Marcus  Coefficients (in case of using Egyptian code)

 

Slab # Child slab number.
Depth [CM] Slab thickness
Width [m] Slab width
Length[m] Slab length

 

 

 

 

 # Child slab number, using an existing slab number overwrites existing data
t [CM] Thickness of slab
W [m] Width of slab
L [m] Length of slab
LL(kg/m2) Live load
FL(kg/m2) Superimposed dead load
F1 * LL(kg/m2) Live load factor
F2 * DL(kg/m2) Dead load factor
Type Load distribution (one or both direction)
r Length to width raitio
Alfa Alfa factor
Beta Beta factor
m1 Factor indicates slab extension (one or two edges)
m2 Factor indicates slab extension (one or two edges)
Short DL (t/m2) Calculated Dead load (short direction)
Short LL (t/m2) Calculated Live load (short direction)
Short Total (t/m2) Calculated total loads (short direction)
Long DL (t/m2) Calculated Dead load (long direction)
Long LL (t/m2) Calculated Live load (longt direction)
Long Total (t/m2) Calculated total loads (long direction)
To launch unit convertor
To add slab data to the list
To cancel current data
To save data 
Create report

  

 

 

Design report

 

 

  

Example: 

 

Slab #

Slab pos.

 (Extension status)

Long direction

 (Extension status)

Short direction

 

1 , 11 , 4 , 6

 one side  

one side

2 , 5 , 3 , 9 , 10

 two sides  

one side

7 , 8

two sides  

two sides

12 , 13

one sides  

two sides

Simply supported

None 

None

In case of square slabs , bear in mind which side selected as length and width.