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Construction Joint

Construction Joint

Construction Joint

(OP)
Folks,
This always puzzles me. What is the best way to place your stop boards for the construction joint in slabs / rafts etc.?

    * at the lowerst shear line, or
    * at the lowerst bending moment line

Appreciate your comments.

Regards,
Clefcon

RE: Construction Joint

Minimum shear, thus near midspan,where the bending is developed by push-pull forces, and the compression side is loaded axially without much shear.

RE: Construction Joint

hokie66 is right - at points of lower shear.

RE: Construction Joint

between the two you have listed, I would say at the lowest shear.  I have an article about construction joints in elevated slabs that didn't say to place them at midspan (lowest shear).  I don't remember exactly what it said, but I will look for the article on Monday.

RE: Construction Joint

(OP)
thanks all for replying.

Clefcon

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