Hello friends

This topic is discussed in the section on section optimization

When using external loads at ultimate limit state level one should keep in mind that

this is approximately 1.4 times the loads used to check maximum displacement requirements. Thus one way of designing structures in Karamba3D is to limit material utilization to 1 / 1.4 ≈ 0.7 under characteristic loads and use the resulting displacements directly for usability design.

In which part is the amount of load increase given?

And where does the amount of material restriction come in?

Hi, you can simply multiply the load factor in all of your loads input by 1.4, or you can optimize towards 70% utilization in the Cross Section Optimisation component.

1 Like