This document contains details of a semester end presentation for a steel structures course. It includes: - Details of the design development process through multiple iterations of a structural design. - Load calculations and specifications for the final sloping umbrella roof structural design which was analyzed using STAAD software. - Drawings and renderings of the final structural design which was verified to meet code requirements.

1. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
Neel Shah
UCT20102
SEMESTER END PRESENTATION
Guided by:
Dr. Dhara Shah | Vasav Bhatt
Presented by:
Neel Shah|UCT20102

2. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
Neel Shah
UCT20102
DESIGN DEVELOPMENT
Iteration 1 Iteration 2 Iteration 3
Iteration 4
Initially, I had provided two V columns with additional support by suspend-
ing tension cables.
After Iteration 4, I developed my Final design in the form of a circular shape.
Just like in Iteration 3, I provided circular beams in the periphery and two di-
agonal beams to prevent the structure from failing from the center.
But after several discussions and explorations, having 2D Truss proved to be
more efficient.

3. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
Load Calculation
Dead Load = 0.028 KN/m2
Live Load = 0.75 KN/m2
For maintanance with
no other access
Wind Load
For Truss = 0.198 KN
For Purlins = 202.1N per point

4. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
Wind Load acting from Y Direction in the form of Point Loads
on the Truss.
The values of the Wind Load are -1.663KN. m & 0.2021KN. m

5. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
Column are of Size 219.1mm*6mm thickness CHS.
Outer 2 Purlins are of size 100*100*6mm thickness SHS
Rest Inner Purlins are of 60*60*4.8 SHS
Taking 1 Purlin of Length 4.33m, the maximum allowable deflection is 14.33mm
whereas the deflection seen in the purlin is 4.86mm.
Inner Purlins are of 60*60*4.8 SHS
Outer 2 Purlins are of size 100*100*6mm thick-
ness SHS
UDL of 0.03 KN/m in DL for the purlins.
Column are of Size 219.1mm*6mm thickness CHS.

6. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
We have considered Limit state of Strength and the Limit state
of Serviceability for the different load cases as per Table 4 of IS
800:2007.
Load cases:
• 1.5 (Dead Load + Live Load), & DL+LL
Displacement for Columns, Purlins and Truss are in the
allowable deflection limits as per IS Code 800:2007.
MATERIAL PROPERTIES:
Section sizes used :
• 219.1 x 6mm Tata CHS
• 60 x 60 x 4.8 Tata SHS
• 100 x 100 x 6 Tata SHS
Final conclusion based on STAAD analysis:
• As per IS 800 the maximum permissible nodal displacement
is l/180 for any span.
• In this case the maximum displacement comes out to be
23.75 for load case DL+LL.
• In this case maxiumum node dislacement is 23.75 < 31.11
mm, hence design is safe against deflection.
• IS Code : IS 800(2007)
Ultimate Tensile strength of the material : 450 N/mm
• Yield stress of the material : 310 N/mm
• Effective length factor(K) = 0.85(Kx
=Ky
=Kz
)
• Maximum values of Effective slenderness ratio considered as
per IS 800:2007 Table 3
• Section Types used in the member : TATA Structura Yst
310

7. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
FINAL DESIGN - Sloping Umbrella Roof

8. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
10705
11900
A
B
A
B
1 1
0 1000 3000 5000mm
SITE PLAN AT +5360MM
N
A
A
'
B
2
B'
2
LVL. + 00
LVL. + 1600
LVL. +700
220 220
4115 3755
3730

9. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL

10. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
4250 3755
85
3630
1015
985
1040
985
965
945
1015
1015
995
975
1015
985
980
985
965
945
1015
1015
995
975
4250
85
3715
85
5430
5275
10705
5470
5300
10705
4340 3715
3780
11900
3780 4340
11900
A
B
A
B
1 1
0 1000 3000 5000mm
STRUCTURAL PLAN
N
85
3690
3755
A
A
'
B
2
B'
2
SB-1
SB-1
SB-1
SB-1
SB-1
SB-1
SB-1
SB-1
SB-1
SB-1
SB-1
SB-2
SB-2
S
B
-
2
S
B
-
2
S
B
-
3
S
B
-
4
S
B
-
5
S
B
-
6
S
B
-
3
S
B
-
4
S
B
-
5
S
B
-
6
S
B
-
3
S
B
-
4
S
B
-
5
S
B
-
6
S
B
-
3
S
B
-
4
S
B
-
5
S
B
-
6
Truss 1
Truss 2 Truss 3
Truss
4
Truss
5
Truss
6
Truss
7

11. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL

12. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
Neel Shah
UCT20102

13. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL

14. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL

15. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
Neel Shah
UCT20102

16. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
Neel Shah
UCT20102

17. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
CHS Out Ø 219.1mm
6 MM THK
400 700
700
500 650
650
1700 50
50
1800
4 Nos. 20mmØ BOLTS
(LENGTH OF BOLT 600MM)
BASE PLATE
(6MM THK)
50 mm Grouting material
Ø40 mm Sleeve for anchor bolt
with grouting
4Nos. Ø20 mm Bolts
600MM - Bolt length)
CHS Ø219.1mm
6MM thickness
BASE PLATE (6MM thickness)
FINISH GROUND LVL.
RCC Pedestal
Footing
PCC(150mm 1:2:4)
COLUMN
Section: 219.1X 6 mm C.H.S
Type: TATA Structura 310 Grade
BASE PLATE
Size: 400X400m
Thickness:6mm
Bolts:20Ø - 4 Nos
PEDESTAL
Size: 1450X1450 mm
Grade: M25
R/F: 10Ø - 5Nos
Ties: 8Ø @112.5c/c
FOOTING
Size: 1.7mX1.7mX0.2m
Grade: M25
R/F: 10Ø - 5Nos
PLAIN CEMENT CONCRETE
Size: 1.80mX1.80mX0.15m
FOUNDATION DETAILS

18. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
3D RENDERS

19. Code No: XXXXXXXX Name: BCT_FT_UG_CEPT UNIVERSITY
CT2025_FORM AND STRUCTURE: STEEL
3685
820
865 865
865 865
865 660 755 755 760 755
820
3685
730 745 725 745
820
5200
800
1020
1040
1050
1045
1045
MEMBER DRAWINGS
740
• The size of the casing 60mm*70mm*5mm
• SHS of size 60*60*4.8mm is used as per Tata
Structura brochure
Bolts of size 16mm dia are used.
Gusset Plate of 5mm thickness is used
which also fulfills the need of buttresses and
can be used for joinery of SHS members.