What To Do If You Don't Have Construction Details/Drawings
What To Do If You Don't Have Construction Details/Drawings
(OP)
We are planning to add a new story for an existing (30 years old Concrete/Masonry Building) and cut thru slabs to accommodate a new elevator/shaft.
Unfortunately, some of the engineering details/drawings were lost. We only have the drawings of the GF & FF but not the basement nor foundations.
Is there any way to "scan" the existing building to identify all members and details?
Unfortunately, some of the engineering details/drawings were lost. We only have the drawings of the GF & FF but not the basement nor foundations.
Is there any way to "scan" the existing building to identify all members and details?






RE: What To Do If You Don't Have Construction Details/Drawings
RE: What To Do If You Don't Have Construction Details/Drawings
The 3D laser will be helpful to capture the above grade dimensions. However, to study if the building can handle the load of the new story, structural engineers will need to know more about building/concrete members.
Concrete compressive strength: can be obtained from coring
GPR can be used to give a sense of the steel reinforcement "density" and distribution, but also has limited "depth of investigation"
What about members below grade (dimensions, compressive S...etc)?
RE: What To Do If You Don't Have Construction Details/Drawings
Another option is to look for alternates to create new foundations for the additional story. This all depends on the spans, architectural requirements, and site constraints.
If this is within in a permit area the local authority sometimes has copies of the original information.