Project 1_Analyze and design a steel building to 10T CRANE as per IS standard code using TEKLA STRUCTURAL DESIGNER.

QUESTION

Analyze and design a steel building to 10T CRANE as per IS standard code in TEKLA STRUCTURAL DESIGNER. Refer the attached plan and elevation. Provide bracings and moment connection for lateral stability. Consider dead, live, equipment and wind loading. Consider the brick wall loading for 150mm thick and 1.5 KN per sq m for wall and roof cladding. Assume wind loading basic speed as 39m/s
Report of each member to be generated and extract drawings of structural plans from the software.

ANS
AIM: To analyze a building to 10T crane load. Create a structure as per the given plan in the attachments provided.

TOOLS USED:
• Grids.

• Levels.

• File.

• Model.

• Manage property sets.

• Column

• Beams.

• Frames.

• Loads.

• Loadcases.

• Wall panels.

• Doof nanalo

PROCEDURE:
1. First open a new file to start the structure as per the plan given in the attachments.

2. Click on construction levels and add all the levels as per the cross section plan given.

3. Select grids tool and draw a horizontal grid line.

4. With the option parallel quick draw the remaning grid lines.

5. Repeat the same procedure for the velricle grid lines also.

6. Now click on manage property sets tool and create members like concrete column, steel column and steel
beams of different grades.

7. Now construct concrete column where ever necessary.

8. Next on the concrete column construct steel columns and join the using primary beams.

9. To give extra strength and support to the structure provide secondary beams.

10. Next select the frames tool and create frams which will be helpful to do the remaning work.

11. Validate the model to check weather there are any errors.

12. Now on selecting the particular frame construct the rafter and the roof using high grade steel bars.

13. After construction of the roof convert the beams to fully fixed support.

14. Now with the help of x braces tool construct x braces on both sides of the structure and as well as on the roof.

15. Now create wall and roof panels to the structure on all sides.

16. Perform the clane loading calculations.

Crane Load Calculation:
Max wheel load
Maximum concentrated load on crane = 100 + 35 = 135KN.
Self-weight of crane will act as uniformly distributed load of intensity
= 160/20 = 8 KN/m.

Taking moment about B:
Rax 20- (135) x (19-8) x (20 x 10) = 0
20 Ra=297000
Ra = 208.25 KN.
Taking moment about A:
Rb x 20 - (135) x (1 - 8)(20 x 10) = 0
20 Rb = 189000
Rb = 86.75KN.
Ra + Rb = 100 KN.
The reaction from the crane girder is distributed equally on two wheels at the end of the crane girder.
Maximum wheel load on each of the crane wheel = 208.25 / 2 = 104.125KN.
MAXIMUM BENDING MOMENT :
Assume self-weight of the gantry girder as 1.5 KN/m
Total dead load = ( Self-weight of rail + self-weight of gantry girder) 0.3 +1.5 = 1.8KN/m

Taking moment about D:
Rex 6 - 104.125 x (20.25 + 3) - 104.125 x 2.25=0
6 Re = 2655.187
Re = 24655.187/6
Re = 130.15 KN.
Taking moment about C:
Rd x 6 - 104.125 x (0.75 + 3) -104.125 x 0.75= 0
Rd x 6 = 468.56
Rd = 468.56/6
Rd= 78.09 KN.
Bending moment under wheel due to live load = Rd x 2
= 78.09 x 2
= 156.18 KNm.
Bending moment due to impact = 0.10 x 156.18 ( 10 % increase due to MOT)
= 15.618KNm

Total bending moment due to live load and impact load = 156.18+ 15.618
= 171.798 KNm.
Bending moment due to dead load = Wxlx1/2
= 1.8 x 6 x 6/2 = 8.1 KNm
Maximum bending moment = 171.798+ 8.1
= 179.89 KNm.
MAXIMUM SHEAR FORCE :
For maximum shear force, one of
Rex 6 - 104.125 x 6-104.125 x 3 = 0
Re=937.125/6
Re = 156.18 KN
The maximum shear force due to wheel load = 156.18 KN

LATERAL FORCES :
Lateral forces traverse to rails = 5% of the weight of crab and weight lifted
= 0.05 ( 135 )
= 6.75KN
Lateral forces on each side wheel F1 = 6.75/2 = 3.375 KN
Maximum horizontal reaction due to the lateral force by proportion at C
= Lateral force x reaction at C due to vertical load/maximum wheel load due to vertical load
= 3.375 x (130.15 / 104.125) = 4.21 KN
At D
= Lateral force x reaction at D due to vertical load / maximum wheel load due to vertical load
= 3.375 x (78.09 / 104.125) = 2.53 KN
4.21 + 2.54 = 6.74 KN
Bending moment due to lateral load by proportion
= 3.375 x (15.18 /104.125)

=5.06 knm

17. Now click on loads and create new loads like dead and live loads.

18. Create slabs to the structure by clicking on slabs on beam option.

19. Now place live and dead load on the structure as per is standard codes.

20. Now create new wind loads with both + Cpi and -Cpi values.

21. At last add seismic load to the structure.

22. Analyze the structure and do necessary changes to correct the errors.
RESULT:
With the above steps we can construct a steel structure and add different kinds of loads and analyze the structure.