RECTANGULAR ELASTOMER BEARING DESIGN PROGRAMS ERRORS CODE

1. Compressive stress with reduced area exceeds allowable limits.

2. Minimum compressive stress is smaller than Euronorm limit (3MPa).

3. Shear strain exceeds 0.7 under total loads.

4. Shear strain exceeds 0.5 under dead loads.

5. Insufficient security against sliding under dead loads.

6. Insufficient security against sliding under total loads.

7. Insufficient security against buckling instability.

8. Error at total elastomer bearing thickness: not equal to

9. Sum of nominal shear strains due to design load effects exceeds 5.

10. Thickness of steel plates is smaller than necessary.

11. Inner and outer plates with different thickness.

12. Sum of nominal shear strains due to design load effects exceeds 5 at cover layer.

13. Rotational instability under total loads considering cover layers.

14. Rotational instability under total loads neglecting cover layers.

15. Thickness of steel plates not specified.

16. Error at factor for live loads effects: other than 1 or 1.5.

17. Rotational instability according to UIC-Code, neglecting cover layers.

18. Rotational instability according to UIC-Code, considering cover layers.

19. Rotational instability according to UIC-Code, under dead loads.

20. Negative vertical dead load, negative long term longitudinal horizontal force or negative long term longitudinal imposed displacement.

21. Negative vertical resultant load.

22. Plain pad bearings: maximum compressive stress exceeds allowable limits according to Italian Standard.

23. Plain pad bearings: minimum compressive stress is smaller than allowable limits according to Italian Standard.

24. Plain pad bearings: compressive stress under dead loads exceeds Italian Standard limits.

25. Plain pad bearings: compressive stress exceeds allowable limits according to Brazilian Standard for Precasted Structures NBR 9062.

26. Plain pad bearings: maximum compressive stress exceeds allowable limits according to Euronorm EN-1337