Project 2 - Review of Shear, Moment & Splice connections in StaadPro Connection Module
AIM:- To Design and optimize typical shear, moment and Splice joints in RAM Connection for a 2D portal frame fixed support spanning 15m with a pitched roof ridge height of 12m.
INTRODUCTION:-
I will create a 2D portal frame in Staad.pro software for a fixed support spanning 15m with a pitched roof ridge height of 12m. A uniformly distributed load of 10kN/m is applied on the roof beams. Then I will create the aforementioned joint in Ram Connection along with given load, then Optimize the beams and columns for 85% utilization and consider splice joints at 6m from base and 3m from beam column joints. Consider a hanger beam shear connected with column support of 4m height from the splice joint with a length of 3m from beam-column corner joint carrying 5kN/m load. Use hot rolled sections.
PROCEDURE:-
Given Data -
i) Supports 2D Frame : Fixed support
ii) Spann : 15m
iii) Roof : Pitched roof
iv) Ridge height : 12m
v) Slope : 4 degrees
vi) Load : UDL of 10 kN/m on roof beam
vii) Splice joint location : At 6 m from base
viii) Hanger beam : Shear connected with column support of 4 m height from splice joint with a length of 3m with a beam
column corner joint carrying 5 kN/m load.
Step 1) Create Geometry
i) Initially open the Staad software
ii) Create the geometry as per given data
ii) Define Material properties
Assign Support to column base
iii) Define property for Rafter and Columns
RAFTER = ISMB 500
COLUMN = ISMB 550
Hanger Beam =ISMB 250
Bracing = DOUBLE ANGLE MEMBER = ISA 100*100*10
v) Specification
i) Beam - Release My Mz
ii) Member Truss for bracings
Step 2) Loading
First add all load cases and add load combinations
i) DEAD LOAD - Add Self Weight = – 1
ii) Live load
A uniformly distributed load of 10kN/m is applied on the roof beams
Another vertical 5 KN/m UDL carrying by hanger beam
I will add a 5KN horizontal load in the corner of beam-column joint
3D view of 2D frame -
Step 4) Analysis
i) Run the Model to check the members utilization ratio .
Now Go to Connection Design tab:-
Now create joint for connection
For the corner connection between beam, column, brace I will use gusset plate connection by using American code as there is no such template available in Indian code
Apply the template of Gusset Plate CBB
View After applying the template
By the use of smart connection option I will create all other joints
Now select the Ram Connection design code and tick additional template options from different origins
Now optimize each joints 85% and to do this select joint cursor, then double click on joints via this cursor
Step 5) Shear, moment and splice joints are created as shown below
1) Gusset Plate connection between Column, bracing and beam is created beween member M (3 , 8, 15)
ii) Further Optimization is done to reduce the utilization ratio (64% optimization utilization)
iii) DXF view
iv) Steel Report
2) Gusset Plate connection between Column, bracing and beam is created beween member M (4 , 7, 16)
ii) Further Optimization is done to reduce the utilization ratio (67% optimization utilization)
iii) DXF view
iv) Steel Report
3) Gusset Plate connection between Column, bracing and beam is created beween member M (12 , 14, 16)
ii) Further Optimization is done to reduce the utilization ratio (61% optimization utilization)
iii) DXF view
iv) Steel Report
4) Gusset Plate connection between Column, bracing and beam is created beween member M (10 , 11, 15)
ii) Further Optimization is done to reduce the utilization ratio (55% optimization utilization)
iii) DXF view
iv) Steel Report
5) End Plate connection between Column and beam is created beween member M (3 , 9, 11)
ii) Further Optimization is done to reduce the utilization ratio (41% optimization utilization)
iii) DXF view
iv) Steel Report
6) End Plate connection between Column and beam is created beween member M (4 , 13, 14)
ii) Further Optimization is done to reduce the utilization ratio (25% optimization utilization)
iii) DXF view
iv) Steel Report
7) End Plate connection between Column and beam is created beween member M (5 , 8, 10)
ii) Further Optimization is done to reduce the utilization ratio (49% optimization utilization)
iii) DXF view
iv) Steel Report
8) End Plate connection between Column and beam is created beween member M (6 , 7, 12)
ii) Further Optimization is done to reduce the utilization ratio (55% optimization utilization)
iii) DXF view
iv) Steel Report
9) Splice Plate connection between Column flange is created beween member M (1, 5)
ii) Further Optimization is done to reduce the utilization ratio (72% optimization utilization)
iii) DXF view
iv) Steel Report
10) Splice Plate connection between Column flange is created beween member M (2, 6)
ii) Further Optimization is done to reduce the utilization ratio (74% optimization utilization)
iii) DXF view
iv) Steel Report
11) End Plate connection between Column and beam is created beween member M (3 , 11)
ii) Further Optimization is done to reduce the utilization ratio (23% optimization utilization)
iii) DXF view
iv) Steel Report
12) End Plate connection between Column and beam is created beween member M (4 , 14)
ii) Further Optimization is done to reduce the utilization ratio (28% optimization utilization)
iii) DXF view
iv) Steel Report
RESULT:-
i) The 2D Portal frame is created in staad.pro with given data and typical shear, moment and slice joint in
RAM connection for 2D portal frame are designed and optimized below 85%