Description
| Geometry | Cross-section: | HEB 180 protected with 20mm perlite & cement |
|---|---|---|
| Material: | S355 | |
| Perlite & cement: |    |
|
| Load | Dead loads in points A: Life loads in points A: |
185kN 175kN |
| Standard | EN 1993-1-1 [- -] EN 1993-1-2 [- -] | |
| Parameters for design | Case 1: cold state | buckling length 3.50m |
| Case 2: fire state | R90 buckling length 2.45m |
Results
Case 1: cold state
Intermediate results in Diamonds for buckling around the y’-axis in cold state
| Results | Independent reference | Diamonds | Difference 1 |
|---|---|---|---|
 |
1024,5kN | 1024,5kN | 0,00% |
 |
1,003 | 1,002 | -0,10% |
 |
1,200 | 1,199 | -0,08% |
 |
0,538 | 0,539 | 0,19% |
 |
1246,2 kN | 1247,5kN | 0,10% |
Unity check  |
82,21% | 82,12% | -0,10% |
1. The difference arises because Access Steel calculates with rounded profile properties, while Diamonds uses exact profile properties.
Furthermore, there is also a discrepancy in the Access Steel calculation sheet: is calculated with 
, while for an area of 
is used.
Case 2: fire state
Temperature of the cross-section after 90min exposure to ISO 834 fire
Intermediate results in Diamonds for buckling around the y’-axis in fire state
| Results | Independent reference | Diamonds | Difference 1 |
|---|---|---|---|
 |
475kN | 475kN | 0,00% |
 |
554°C | 552°C | -0,36% |
 |
0,613 | 0,618 | 0,82% |
 |
0,444 | 0,449 | 1,13% |
 |
0,825 | 0,832 | 0,85% |
 |
0,581 | 0,582 | 0,17% |
 |
825,0kN | 832,9kN | 0,97% |
Unity check  |
57.6% | 57,0% | -0,96% |
References
- EN 1993-1-1: 2005+AC:2009
EN 1993-1-2: 2005 - Sokol, Z. (2006). Example: Fire design of protected HEB section column exposed to the standard temperature time curve. Calculation Sheet Access Steel, SX044a-EN-EU
- Tested in Diamonds 2023r01.
