GRIDS DESIGN COMPETITION

2. STRUCTURAL ANALYSIS II
GRID COMPETITION
IT IS NOT A STRENGTH COMPETITION

3. STRUCTURAL ANALYSIS II
GRID COMPETITION
THE AIM IS TO GET 4 REACTION FORCES AS EQUAL AS POSSIBLE

4. STRUCTURAL ANALYSIS II
GRID COMPETITION
BE CAREFUL WITH THE SPAN DIMENSIONS!
L1 = 25 + x1 cm
L2 = 30 + x2 cm
L3 = 35 + x3 cm
L4 = 40 + x4 cm
If there are less than four members
in a team, x4=9, x3=9 y x2=9

5. STRUCTURAL ANALYSIS II
GRID COMPETITION
YOU HAVE TO DECIDE THE CROSS SECTIONS DIMENSIONS

6. STRUCTURAL ANALYSIS II
GRID COMPETITION
WHICH BEAM SHOULD HAVE A BIGGER CROSS SECTION,
the longer or the shorter?

7. STRUCTURAL ANALYSIS II
GRID COMPETITION
WHICH BEAM SHOULD HAVE A BIGGER CROSS SECTION,
the longer or the shorter?

8. STRUCTURAL ANALYSIS II
GRID COMPETITION
BENDING BEHAVIOUR IS INTERESTING: WE HAVE TO AVOID UNSTABILITY

9. STRUCTURAL ANALYSIS II
GRID COMPETITION
BENDING BEHAVIOUR IS INTERESTING: WE HAVE TO AVOID UNSTABILITY

10. STRUCTURAL ANALYSIS II
GRID COMPETITION
BENDING BEHAVIOUR IS INTERESTING: WE HAVE TO AVOID UNSTABILITY

11. STRUCTURAL ANALYSIS II
GRID COMPETITION
BE CAREFUL WITH THE CROSS SECTION DESIGN

12. STRUCTURAL ANALYSIS II
GRID COMPETITION
BENDING BEHAVIOUR IS INTERESTING: WE HAVE TO AVOID UNSTABILITY

13. STRUCTURAL ANALYSIS II
GRID COMPETITION
BENDING BEHAVIOUR IS INTERESTING: WE HAVE TO AVOID UNSTABILITY

14. STRUCTURAL ANALYSIS II
GRID COMPETITION
BE SPECIALLY CAREFUL WITH THE JOINT

15. STRUCTURAL ANALYSIS II
GRID COMPETITION
BE SPECIALLY CAREFUL WITH THE JOINT

16. STRUCTURAL ANALYSIS II
GRID COMPETITION
BE SPECIALLY CAREFUL WITH THE JOINT

17. STRUCTURAL ANALYSIS II
GRID COMPETITION
BE SPECIALLY CAREFUL WITH THE JOINT

18. STRUCTURAL ANALYSIS II
GRID COMPETITION
THINK IN THE LOAD DISTRIBUTION!

19. STRUCTURAL ANALYSIS II
GRID COMPETITION
THINK IN THE LOAD DISTRIBUTION!

20. STRUCTURAL ANALYSIS II
GRID COMPETITION
THINK IN THE LOAD DISTRIBUTION!

21. STRUCTURAL ANALYSIS II
GRID COMPETITION
THINK IN THE LOAD DISTRIBUTION!

22. STRUCTURAL ANALYSIS II
GRID COMPETITION
THINK IN THE LOAD DISTRIBUTION!

23. STRUCTURAL ANALYSIS II
GRID COMPETITION
YOU WILL HAVE TO EXPLAIN THE KEYS OF YOUR GRID DESIGN

24. STRUCTURAL ANALYSIS II
GRID COMPETITION
YOU WILL HAVE TO EXPLAIN THE KEYS OF YOUR GRID DESIGN

25. STRUCTURAL ANALYSIS II
GRID COMPETITION
REPORT entry 26th APRIL
a. An exhausted description of the model (drawings, pictures, whatever considered necessary)
b. Mathematical explanation of the grid behaviour (reasons of the design chosen to equal the four
reaction forces). We recommend you to apply the Compatibility Method and the formulas studied in
the subject Structural Systems to calculate the cross section mechanical parameters.
c. Reaction forces values monitored during the loading process. Failure causes description and failure
load value. Pictures of the test process. Average deviation of the reaction forces values. Model
efficiency.
d. In addition, you should propose design improvements for the model on one hand to balance the
reaction forces and on the other hand to improve the model efficiency.