Elastic Ground Parameters for Ground Beam

[umut.akparlar]

Hi,

I am designing ground beams between pad foundations, and I need to enter elastic ground parameters Ky, Kz, Hx.

I can assume that Kz represents vertical, and Ky is for horizontal coefficient values. I have following questions about this subject: 

• Why there is no Kx like in the elastic supports? 
• What exactly is Hx represents? 
• Can we use attached linear elastic support feature instead of elastic ground members for ground beams? 

Kindly provide input.

Thanks 

[Rafacascudo · Accepted solution]

Ky and Kz correspond to the bar local directions.So , check your bar local axes before assuming Kz is for the vertical direction

There is no Kx because this would be the bar axial direction

Hx would be for rotational spring around local x axis

 And no , linear supports cannot be used for bars.

You can find all the above just clicking the Help button with is present in every RSA dialog window

https://help.autodesk.com/view/RSAPRO/2024/ENU/?guid=GUID-856D258D-3A72-495A-973C-7AAFC5EE60E6

https://help.autodesk.com/view/RSAPRO/2024/ENU/?guid=GUID-9502DF7E-1CF6-4BF2-BCDA-BABFD876FCAE