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 |
Diamonds results and comparison
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 2024r01.