|
||
|
|
||
Project file: Benchmark_(EC_EN_1993)_50.esa
SCIA Engineer Version R18.1
This benchmark concerns the worked example under chapter 4.5 of the document: Steel column bases under biaxial loading conditions, Patricia Medeiros Amaral of Faculdade De Engenharia – Universidade Do Porto, 2014
A column (HEB 240 -S235) base loaded with normal force (-200 kN) and bending (50 kNm) is considered. The steel grade of the baseplate is also S235 and its thickness is 20mm. The concrete block size is 1500x1000x400 mm and its grade is C16/20. The connection between the base plate and the concrete is carried out through four threaded rods of steel grade 8.8 with 20 mm of diameter and an embedment of 250 mm. All dimension data can be found in the picture and table below:
The reference gives following results:
|
Baseplate under the left column flange |
|
| m | 40,9 mm |
| Lb,min | 100,94 mm |
| Leff,1-2 | 165 mm |
| FT,1-2,Rd | 189,4 kN |
|
Design tension resistance of anchor row |
|
| fub | 830 MPa |
| As | 220 mm² |
| k2 | 0,9 |
| FT,Rd | 131,5 kN |
Since there are two anchors per row => FT,3,Rd= 2 x Ft,Rd = 2 x 131,5 = 263 kN
Finally, the T-stub in tension resistance is FT,Rd = min (FT,3,Rd; Ft,Rd) = 189,4 kN
|
Bearing width data |
|
| Ac0 | 145200 mm² |
| a2 | 840 mm |
| b2 | 730 mm |
| Ac1 | 613200 mm² |
| Bj | 0,67 |
| fcd | 15,07 MPa |
| fj | 20,642 MPa |
| c | 39 mm |
|
Fc,pl,Rd data |
|
| beff | 94,9 mm |
| leff | 330 mm |
| Aeff | 30180 mm² |
| Fc,pl,Rd | 622,9 kN |
|
Fc,fb,Rd data |
|
| Mc,Rd | 247,5 kNm |
| hc-tf | 223 mm |
| Fc,fc,Rd | 1109,7 kN |
|
Mj,Rd data |
|
| FT,l,Rd | 189,4 kN |
| zT,l | 170 mm |
| FC,r,Rd | 622,9 kN |
| zC,r | 111,5 mm |
| z | 281,5 mm |
| e | 250 mm |
My,Rd = 96,2kNm
|
Sj data |
|
| kT,l | 1,607 mm |
| zT,l | 170 mm |
| kC,r | 10,881 mm |
| z | 281,5 mm |
| ek,z | 75,3 mm |
| e | -250 mm |
| Sj,ini | 33,334 MNm/rad |
