Versions Compared

Version Old Version 3 New Version 4
Changes made by

Zeynep Aladağ

oğuzcan hadim

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

CE001 BASE STORY PMM ratio not satisfied.

In steel column element design, the design ratio under the influence of combined axial force and biaxial bending (PMM ratio) is made in accordance with the Design, Calculation and Construction Principles of Steel Structures (GKT and by the ÇYTHYE 2016 (GKT & YDKT), AISC 360-16 (ASD and & LRFD) or EN 1993-1-1 regulations. . According to the Design, Calculation and Construction Principles of Steel Structures (GKT and YDKT), the calculation of AISC 360-16, axial force and biaxial bending interaction equations is stated are calculated below.

Mathinline
body--uriencoded--$$ \normalsize (a) \; \; \dfrac%7BP_r%7D%7BP_c%7D \ge 0.2 \; \; \; \; \; \; \; \; \dfrac%7BP_r%7D%7BP_c%7D + \dfrac%7B8%7D%7B9%7D \bigg( \dfrac%7BM_%7Brx%7D%7D%7BM_%7Bcx%7D%7D + \dfrac%7BM_%7Bry%7D%7D%7BM_%7Bcy%7D%7D \bigg) \le 1.00 $$

...

  • The PMM ratio value must be less than 1.

Possible Solutions:

  • The lateral retention size Laterally unbraced length of the steel element can be reduced by connecting braces or stability elements to the element whose name and floor are given. The bending and axial pressure capacity of the elements increases as the lateral retention length decreases.using steel braces.

  • The PMM ratio can be reduced if braces are entered to reduce the lateral retention length on the weak axis of the columns, as an example is shown in the picture below.

    image-20240118-071936.png

  • Element Steel element cross-section size can be increasedenlarged.

...

Next Topic

Steel column shear strength not satisfied.

...