Brick wall removal - shoring design

[Heldbaum]

Hello folks,

Please see attached pdf. We were hired by contractor to prepare sign and sealed shoring design/drawings as per EOR request. Exterior brick wall and concrete foundation wall are to be replaced. It is a 4 story building with basement, concrete foundation wall, exterior brick wall is 16-18" and wood joists. The width of the building is around 32'. According to EOR's design, after the shoring is installed, masonry wall will be removed and then foundation wall replaced in sections. Shoring that he is calling out on his plans does not look "sufficient" for me, my understanding is that he might have copied and pasted some typical details but on the other hand he specifies jack's capacity etc. This shoring seems to "take care" only of gravity loads, what about lateral stability for the time when the foundation wall will be replaced?
ASCE 37-14 Design Loads on Structures during Construction states that min. wind load shall be 16 psf and 2% of vertical load acting simultaneously..
I'd add a second row of jacks 4-5' to the right and brace them together.. What do you think ? What about jacks connections with the floor joists to withstand lateral forces? Maybe you would use a different method? I was also thinking about steel tubes and beams going from the basement to the top as an alternative but not sure. Any thoughts will be much appreciated.
Best!

 

[EngineeringEric]

Have you contacted the shoring engineer?

The lateral loads may be so small that the engineer feels friction is sufficient? Is there really wind load of 16psf when there is no wall?

To be honest, if you want more and to brace it because you feel it is light tell the engineer that. Have them add it on their plans. If you want to provide a better connection between the jacks and joists... propose one to engineer and ask that they check/add it if it works. I know i like input on my designs and i make mistakes (check my history here for example of some!)

 

[Heldbaum]

Eric, the pdf I attached comes from set of drawings that have been filled. I am the shoring engineer in that case, of course EOR has to approve my design/drawings..

 

[tony1851]

Try these;