FOUNDATION SUPPORT LINEAR OR LINK

[Abdulhannan]

Hi,

i would to ask to all seniors here. i want to design my mat foundation considering the effect of temperature and consider the friction between concrete and soil.
what is the best way to model the Support? as linear area spring or considering a Link type support?

Thanks

 

[human909]

Is this a student question? Probably better to ask in the student forum.

 

[Abdulhannan]

Hi, im actaully desinging the nat foundation. but the client ask to check the axial forces due to temperature change.

 

[cliff234]

Since most foundations are below grade, what value of delta T are you anticipating? Zero? Is this a mat foundation under a building, or is it a mat exposed to outside air temperatures? Do you think this might be a trick question?! I never heard of a need to consider this?