YS-STL-BS-02

CONNECTION ANALYSIS

Problem

Design structural steel connection that meant to resist 200kN in-plane force in x direction, 500kN in-plane force in y direction and 124kN out-of-plane force. Use steel grade S355.

Solution

1. Step 1 to 11 demonstrate design procedure for welded connection. Step 12 to 19 demonstrate design procedure for bolted connection.
2. Determine the weld class to use.
3. Set the weld leg and determine the weld length.
4. Determine the weld strength based on Table 37, BS5950-1:2000.
5. Determine the longitudinal shear force developed per unit length of weld by dividing longitudinal shear force with total weld length.
6. Determine the resultant transverse shear force developed per unit length of weld.
7. Calculate the angle of resultant transverse shear force from plane.
8. Calculate the angle between resultant transverse shear force and the throat of weld, as per cl.6.8.7.3, BS5950-1:2000.
9. Calculate the factor K as per cl.6.8.7.3, BS5950-1:2000.
10. Determine the longitudinal and transverse weld capacity based on cl.6.8.7.3, BS5950-1:2000.
11. Inspect the weld design by using capacity ratio as provided in cl.6.8.7.3, BS5950-1:2000.
12. Determine the bolt class, bolt diameter, edge distance, ply thickness and number of bolts used.
13. Calculate the design shear force and bearing force acting in individual bolt.
14. Calculate the design tension acting in individual bolt.
15. Determine the shear capacity of bolt based on Table 30 & cl.6.3.2.1, BS5950-1:2000.
16. Determine the bearing capacity of bolt based on Table 31, Table 32 & cl.6.3.3, BS5950-1:2000.
17. Determine the tension capacity of bolt based on Table 34 & cl.6.3.4.2, BS5950-1:2000.
18. Evaluate the bolt design by determining the capacity ratio for shear, bearing and tension.
19. For bolts subjected to both shear and tension, determine the capacity ratio in accordance with cl.6.3.4.4, BS5950-1:2000.