Challenge

Project 1 - Review of Shear & Moment Connections in RAM Connection

AIM:- To determine the Shear, moment and Splice joints in RAM Connection for a 2D portal frame is required to be designed.

GIVEN DATA:

Supports o 2D Frame : Fixed support
Spann : 15m
Roof : Pitched roof
Ridge height : 12m
Slope : 4 degrees
Load : UDL of 10 kN/m on roof beam
Stees Section : Hot rolled
Splice joint location : At 6 m from base
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.
Also Design and optimize base plate connection. Optimise beam and column for 85% utilization

PROCEDURE:

Open the staad.pro and make a portal frame

Live load of 5 Kn/m as UDL on hanger beam is assigned as shown below

3D view of 2D portal frame-

Shear, moment and splice joints are created as shown below-
Bolted splice flange plate joint is between member 1 & 8 at node 7
Beam column flange bolted moment joint is between member 5 & 9 at node 3
Beam column flange seating angle shear connection at node 8 between member 9 &10

Design - 1st Joint

Design of Bolted splice flange plate joint is designed as shown below in which utilisation ratio is 0.95 < 1.0

Design - 2nd Joint

Design of Beam column flange bolted moment joint is between member 5 & 9 at node 3 is as shown below in which utilisation ratio is 0.9 <1.0 ( safe)

The Dxf files of the all the three joint members are being attached int the files sextion for more details.

Design -3rd Joint

Beam column flange seating angle shear connection at node 8 between member 9 &10

FINAL RESULT:

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 as shown below.
Design of all the 03 joints are safe from Geometrical consideration as well as on strength criteria as indicated from utilization ratio which are 0.17 , 0.76 and 0.48 .

Ship work like this
in your own course.