Underpinning load

[Agandepally]

Hello all ,

Am designing an underpinning for a an existing two storied masonry wall building foundation , by assuming 4000 psf of allowable soil bearing pressure times the width of foundation 2 ft am getting a load of 8 klf on the foundation to be handled by my underpinning bracket and micro piles( this is the only load available in existing drawings which are 30 yrs old) , the load kinda looks high to me , is there any way to get the load down
Is there any standard consideration for the load coming from a masonry building wall on the foundation

Thank you for your suggestions

 

[jayrod12]

Without more information of the rest of the structure, no.

 

[Guastavino]

Can you calculate the actual load on the footing? IE do you know the geometry of the structure, materials/weights, and live loads? If so, you can calculate the actual load and use it as opposed to the 4 ksf