topic Re: (API) Storey Stability Index Calculation in Robot Structural Analysis Forum

(API) Storey Stability Index Calculation

Romanich — Fri, 14 Apr 2023 02:21:13 GMT

The calculation of the storey stability index Q is based on clause 10.14.4 of the National Standard of Canada CSA A23.3:19 “Design of concrete structures”. I hope this small macro will help Canadian Robot users.

General Usage Instructions

Modify the moment of inertia for all structural members. It is recommended to use the IModifier to speed up the process.
Make sure that storeys are defined in the model.
Input manual load combination number in cell B2. It is assumed that the load combination contains lateral forces.
Run analysis.
Press the Get Results button.

Assumptions

For each storey Robot returns results in global X and Y directions. These results are reported in columns Vfx, Vfy, Δox, Δoy. However, for Q calculation the program uses the Square Root of the Sum of the Squares procedure to determine Vf and Δo.

Example:

Re: (API) Storey Stability Index Calculation

Rafal.Gaweda — Fri, 12 May 2023 07:53:10 GMT

Hi,

added to the list of addins:

https://forums.autodesk.com/t5/robot-structural-analysis-forum/useful-addins-for-robot-api/td-p/3899448

Re: (API) Storey Stability Index Calculation

khimpitou — Sat, 23 Nov 2024 14:59:56 GMT

it would be appreciated if you make a short video clip for this, thanks.

Re: (API) Storey Stability Index Calculation

Romanich — Sat, 23 Nov 2024 16:54:38 GMT

Hi @khimpitou,

Please check the video clip below:

(view in My Videos)