This mode implements local stability checks for webs and flanges of steel structural members with a symmetric or asymmetric I-sections, or a box sections.
Local stability is checked for webs of beam structures. The application considers only two types of designs: designs with transverse double-sided stiffeners over the whole height of the web, and designs without stiffeners.
Local stability checks are performed for webs and flanges of beam, column, and beam-column steel structural members. The application considers only two types of structural designs: designs with transverse double-sided stiffeners over the whole height of the web, and designs without stiffeners.
Unlike the Resistance of Sections modes this mode enables to perform the analysis of local stability taking into account the local stresses in the beam web from the concentrated force.
The following checks are performed in accordance with the selected design code:
Check |
SNiP II-23-81* |
SNiP RK5.04-23-2002 |
SP 53-102-2004 |
SP 16.13330 |
DBN B.2.6-163:2010 |
DBN B.2.6-198:2014 |
ShNK 2.03.05-13 |
|---|---|---|---|---|---|---|---|
Web slenderness based on local stability constraint |
Sec. 7.1. 7.2*, 7.3, 7.4*, 7.6*, 7.9, 7.10, 7.14, 7.16*, 7.17*, 7.18, Table 27*; |
Sec. . 7.1, 7.2, 7.3, 7.4–7.6, 7.9, 7.10, 7.23, 7.26, 7.27, 7.28 |
Sec. 8.3.2, Table 8; Sec. 9.5.1–9.5.9; Sec. 10.4.2, Table 20; Sec. 10.4.3; |
Sec. 7.3.2, Table 9; Sec. 8.5.1–8.5.9; Sec. 9.4.2, Table 22; Sec. 9.4.3 |
Sec. 1.4.3.2, Table 1.4.3; Sec. 1.5.5.1–1.5.5.9; Sec. 1.6.4.2, Table 1.6.3 |
Sec. 8.3.2, Table 8.3; Sec. 9.5.1–9.5.9; Sec. 10.4.2, Table 10.3 |
Sec. 9.1, 9.2, 9.3, 9.4, 9.5 – 9.7, 9.10, 9.11; Sec. 9.15, 9.16, 9.17, 9.18 |
Flange overhang (flange plate) slenderness based on local stability constraint |
Sec. 7.22*, 7.23*, Table 29*, Sec. 7.24, Table 30; Sec. 7.26* |
Sec. 7.32, 7.33, 7.34 |
Sec. 8.3.7, Table 9; Sec. 9.5.14; Sec. 10.4.7, Table 21 |
Sec. 7.3.8, Table 10; Sec. 8.5.18; Sec. 9.4.7, Table 23 |
Sec. 1.4.3.7, Table 1.4.4; Sec. 1.5.5.14; Sec. 1.6.4.8, Table 1.6.4 |
Sec. 8.3.7, Table 8.4; Sec. 9.5.14; Sec. 10.4.8, Table 10.4 |
Sec. 9.22, 9.23, Sec. 9.24 |
Flange overhang (flange plate) slenderness based on local stability constraint |
Sec. 7.4* |
Sec. 7.4 |
Sec. 9.5.3 |
Sec. 8.5.3 |
Sec. 1.5.5.3 |
Sec. 9.5.3 |
Sec. 9.5 |
The mode calculates the value of Kmax and enables to browse the values of all factors using a diagram which can be opened by clicking the Factors button.
The crane beam structures and structural designs with single-sided web stiffeners or longitudinal web stiffeners are not considered.