## Question

**I would like to inquire whether the message "Node 4713 has too many column elements" that appears during design has any impact on the design itself.**

## Answer

**This message occurs when you have selected the option to automatically calculate the effective buckling length factor in GEN and when a single node has more than 3 connected columns. The message indicates that the program cannot automatically calculate the effective buckling length of the columns connected to that node.**

Therefore, check if there are more than three columns connected to a single node in your modeling. If there are, you need to correct the modeling. If not, you will either need to manually input the effective buckling length factor or use the default value of 1.0.

Additionally, let's explore how the automatic calculation of the effective buckling length factor works.

The effective buckling length factor is a crucial value required during design. There are two ways in which the program can automatically calculate it:

1. You can manually input the effective length factor for each member (Design > General Design Parameter > Effective Length Factor(K), refer to the illustration below). If you do this, the program will automatically calculate the effective buckling length factor for the members that you haven't input it for.

2. When you select Design > General Design Parameter > Definition of Frame, the Definition of Frame dialog box will appear. If you check the Auto Calculate Effective Length Factors option, the program will automatically calculate the effective length factors for all members, regardless of whether you've manually input values for them or not.

[Image] Effective Length Factor(K) [Image] Definition of Frame