Shoring &
Jacking: Part II
Jacking and shoring an old building is
a job unlike anything in new
construction. When you frame a new
floor or roof deck, you know your
spans and material dimensions, and
how to nail it all together so it stays
together. But when you need to jack
up a 50-plus-year old building to
repair its disintegrating underbelly,
there are few known quantities. Every
jacking and shoring job is a tricky
custom job, and a dangerous one. In
fact, every time I get under a jackedup
building, I hear the refrain from
that Jimmy Dean song about getting
buried in a mine because some shoring
came loose. . .
So, here are some guidelines about
jacking