This message is created by specifying the element name and floor on which it is located at the beginning of the report.
For example,
SB001 BASE STORY Inadequate lateral bracing of steel beam.
In steel structural system beams with high ductility level and normal ductility level, in accordance with TBDY Chapter 9 and AISC 341-16 regulations, the lower and/or upper headings of the steel beams must be supported against lateral buckling to meet the conditions given in the regulations.
As stated in TBDY 9.2.8;
The greatest distance between lateral support elements in beams designed as elements with high ductility level of seismic load bearing systems will meet the following condition.
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The greatest distance between lateral support elements in beams of seismic load-bearing systems designed as elements with limited ductility level will meet the following condition.
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Possible Solutions:
Lateral retention length can be reduced by connecting roof braces (horizontal braces) and stability elements to the steel beam whose name and floor are given.
Lateral retention length can be reduced by connecting secondary beams or beams that will provide stability to the steel beam whose name and floor are given.
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icons
L b : Distance between the points where the pressure head is supported in the lateral direction or where the cross-section is supported against distortion
E : Elasticity modulus of structural steel
F y : Characteristic yield stress of structural steel
i y : Radius of inertia with respect to the weak axis of the beam cross-section
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