Hennepin County

Welcome, Guest!
Log in | Employee Login | License
 

Messages

PROJECT QUESTION: On sheet B140, the detail indicates, shows a bend in the edge of the plate. Is this detail applicable to every closure, on every precast cap? Would a radius on the plate be an acceptable method in lieu of the bend? Does this detail not induce point loads?

Question: On sheet B140, the detail indicates, shows a bend in the edge of the plate. Is this detail applicable to every closure, on every precast cap? Would a radius on the plate be an acceptable method in lieu of the bend? Does this detail not induce point loads?

Response: No. The detail is applicable to sliding transverse closure pours at locations where the deck is to slide on the PTFE sheet over the cap beam. A radius is acceptable in lieu of a bend. The intent is to eliminate the possibility of having stainless steel plates on either side of the closure pour at slightly different levels, as this would damage the PTFE and hinder sliding. The detail on sheet B140 will be revised to clarify. No, it should not. The maximum transverse closure pour is 9 inches and the smallest cap beam width is 2-feet 6-inches, thus there is 10.5 inches either side of the cap beam where the S.S. plates from the deck panel should be in full contact with the PTFE recessed into the S.S plate of the cap beam.