Analysis of a Welded Connection between an Angle Cleat and a Column Flange
Objective: Check the mode for calculating welded connections.
Task: Check the welded connection with fillet welds between an angle cleat and a column flange.
References: Moskalev N.S., Pronosin J.A. Steel Structures. Handbook / M.: ASV Publishing House, 2010. p. 85.
Compliance with the codes: SNiP II-23-81*, SP 16.13330.2011, SP 16.13330.2017, DBN B.2.6-163:2010, DBN B.2.6-198:2014.
Initial data:
| N = 1000 Kn | Force |
| Run = 370 MPa | Steel С245 |
| Rwf = 215 MPa | CO2 semiautomatic welding with a Sv-08G2S wire |
| b = 200 mm | width of the cleat (transverse fillet weld) |
| kf = 12 mm | Weld leg |
| h = 150 mm | height of the cleat (longitudinal fillet welds) |
Initial data file:
1.5.sav;
report — Kristall1.5.doc
KRISTALL initial data:
Steel: C245
|
Importance factor |
1 |
|
Service factor |
1 |
|
Group of structures according to the table 50* of SNiP II-23-81* |
1 |
|
Properties of welding materials: |
|
|---|---|
|
Characteristic resistance of the weld metal based on the ultimate strength, Rwun |
490 N/mm2 |
|
Design resistance of the fillet welds for shear in the weld metal, Rwf |
215 N/mm2 |
|
Type of welding |
Automatic and semiautomatic, diameter of the electrode wire not less than 1.4-2.0 mm |
|
Position of weld |
Flat |
|
Climatic region |
with temperature t > -40°C |
|
Type |
Parameters |
|---|---|
|
Section - Full assortment of GOST profiles. Equal angle GOST 8509-93 L80x7 |
Weld leg = 12 mm
|
Internal forces and moments:
N = 1000 kN
My = 0 kNm
Qz = 0 kN
|
Checked according to SNiP |
Check |
Utilization factor |
|---|---|---|
|
Sec.11.2 Formula (120) |
of the weld metal |
1.042 |
|
Sec.11.2 Formula (121) |
of the metal of the fusion border |
1.001 |
Comparison of solutions:
|
Check |
of the weld metal |
|
Source |
48 cm / 47.64 cm = 1,0076 |
|
KRISTALL |
1,042 |
|
Deviation, % |
3,3 |
Comments:
The difference can be explained by the fact that in the source book the value of the design resistance is taken as Rwf = 215 MPa, while KRISTALL uses the value of Rwf = 200 MPa in full compliance with tables 55* and 56 SNiP ІІ-23-81*.