Concrete Half Joint
Concrete Half Joint
(OP)
Hi guys
Has anyone got any typical details for a concrete slab half joint. I know how to design corbels and nibs by strut-tie and detailing bearings but I just wanted to know if there is anything special that I need to look out for.
The slab is rather large between permanent movement joints (>50m ; >160') so I am expected large shrinkage movements and seismic displacements will also be a factor.
Any tips will be appreciated.
Thanks
Has anyone got any typical details for a concrete slab half joint. I know how to design corbels and nibs by strut-tie and detailing bearings but I just wanted to know if there is anything special that I need to look out for.
The slab is rather large between permanent movement joints (>50m ; >160') so I am expected large shrinkage movements and seismic displacements will also be a factor.
Any tips will be appreciated.
Thanks






RE: Concrete Half Joint
depending on he thickness I like to detail u bars for the thinner corbels, using a N10 bar with a 4d pin. normally the bearing pad is place 25-50mm behind the star of the bend of the hook bar.
http://www.nceng.com.au/
"A safe structure will be the one whose weakest link is never overloaded by the greatest force to which the structure is subjected" Petroski 1992
RE: Concrete Half Joint
RE: Concrete Half Joint
Your corbel joint allows for access to the bearing from below, so much better than the halving type.
Don't forget the hanging bars in the supporting side.
RE: Concrete Half Joint
I opened a bearing catalogue and it was referring to it as a half joint so that is were I picked up the terminology. Not to mind. Corbel it is.