To calculate dead and live load for industrial steel structures and to apply them using TSD
1.Aim: To Calculate dead load in design report based on IS code and apply dead load on the model
Procedure:
Load calculations:
• Dead Load=1.2 kn/m^2
• Finishes=500mmx24 kn/m^3 = 1.2 kn/m^2
•Brick wall load =0.15x20x5.2=15.6 kn/m^2 (Ground to intermediate floor)
• Brick wall load =0.15x20x6.8=20.5 kn/m^2(intermediate floor to Roof)
• Brick wall load =0.15x20x4.8=14.5 kn/m^2(Roof to top floor)
• Roof load =1.5 kn/m
• ceiling load=0.3 kn/m
now open tekla structural designer software
• Open the week 3 file where we have created a steel structure
• Now we have week 3 file below
• Now go-to model tab and select slabs on beams option as shown
• Now add slabs to each floor as shown
• Now go to the load tab and select load cases
• Now we get a window named as loading as shown
• Now add required loads in this window
• Now Goto load tab and select combinations
• Now we get a window named as loading as shown
• Now click on combinations and add required combinations as shown below
• Now select the level where we want to apply the loads.
• Now select the loads as required at the bottom left corner
• Now go to the load tab and select the apply load on the slab
• Now we can see Area load to apply load on the slab
• Now select the level where we want to apply the loads
• Now select the loads as required at the bottom left corner
• Now go to the load tab and select the UDL to apply load on the brick wall
• Now we can see the UDL applied on the brick wall
• Finally, apply loads on the Roof
Result: Calculation of dead load in design report based on IS code and application of dead load on the model is done.
2. Aim: To Calculate live load in design report based on IS code and apply live load on the model
Procedure:
Based on the IS 875 the live loads are applied, as follows.
• Workshop = 5 kn/m^2
• Staircase =5 kn/m^2
• Corridor = 5 kn/m^2
• Meeting Room = 5 kn/m^2
• Store Room =5 kn/m^2
• Toilet = 2 kn/m^2
• Canteen = 3 kn/m^2
• Office Room = 3 kn/m^2
• Conference room = 5 kn/m^2
• Equipment Room = 10 kn/m^2
• Rest Room = 2 kn/m^2
• Administration Room = 5 kn/m^2
The Live loads are applied for all the floors, as shown below.
• Now select the level where we want to apply the loads .
• Now select the loads as required at the bottom left corner
• Now go to the load tab and select the Area to apply load on the slab
• Now we can see the Area load applied on the slab
Result: Calculation of live load in design report based on IS code and application of live load on the model is done.
3 Aim: Generate a calculation for 5T crane loading based on the following inputs
Procedure:
Given Data:
• Centre to Centre of wheel = 10 m
• Weight of crab = 40 KN
• Number of wheels = 4
• Wheelbase = 2 m
• Crane Capacity=50 KN
• weight of trolley = 10KN
• hook approach = 1m
Maximum point load on Crane=Crane capacity + weight of the trolley
=50+10
=60 KN
UDL= self weight frame distance/ls
=40/14 =2.89KN/m
Moment at A:
`summ`MA=0
=60xl-RBX14+2.89X14X14/2
RB=24.5KN
`summ`Fy=0 RA+RB-60-2.89X14=0
RA=60+2.89X14-RB
RA=75.9KN
Now assuming self weight of gantry grider=1.2 kN/m
assuming self weight of gantry grider=0.3KN/m
Total self weight=1.2+0.3 =1.5KN/m
FACTORED LOAD=1.5x1.5 =2.25KN/m Now load on each wheel=75.9/2 =37.97KN
Factored load=37.97x1.5 =56.95KN
=57KN
Moment at C:
`summ`Mc=0
RDX6=2.25x6x6/2+57x4.5+57x2.5 RD=73.25KN
`summ`Fy=0 RC+RD-57-57-2.25X6 RC+RD=127.5KN
RC+73.25=127.5
RC=127.5-73.25
RC=54.25KN
MAX SHEAR FORCE
`summ`MF=0
REX6-57-57X4-2.25X6X6/2=0
RE=101.75KN
IMPACT LOAD:
=10% OF WHEEL LOAD
=0.1X101.75
=10.175KN
V=WI/2 = 1.5X6/2
=4.5KN
Max shear force=4.5+10.175+101.75 =116.425KN
Lateral load analysis=5% of total weight
(5/100)x60
=3KN