TSTower software - Foundation reactions

[monopoly]

Hello,

has anyone used TSTOWER FOR SELF-SUPPORTING LATTICED TOWERS. I have read the manual and tried to understand the differences between "LEG REACTION DATA" and "TOWER FOUNDATION DATA"
Which one is used for foundation design ? and why the download/uplift from Leg reaction data different than axial from Foundation data ?

Thank you

Link to manual:

http://www.towersft.com/portal/Portals/0/Software/Docs/SS_towersManual.pdf?ver=2016-02-16-182934-610

 

[skeletron]

For the design of the mat/footing/pier use the "tower foundation data" because that is the resultant force at the foundation. TSFoundation will load the foundation loads for its design. The "leg reaction data" would be used for individual leg attachment design (baseplate, anchor bolts).

Axial load = resultant of the downloads - uplift from the leg reaction data.

 

[monopoly]

Thanks Skeletron
From LEG REACTION DATA, there are only download or uplift and shear. However, other than resultant of axial and shear the TOWER FOUNDATION DATA there are also huge bending moments. All leg and diagonal members come to the baseplate. Where’s bending moment coming from? unless from bottom of leg and top of foundation, there is some transition connections.

Should the bottom of tower be modeled as PINNED rather than FIXED?

Sorry, im new to the Communication Tower design and new to TStower software.

Pile foundation design will be realy challenged to design for that huge bending moments

Thanks