When casting continuous concrete beams it is normal to place construction joints at 1/3 points of the span on the basis that the moment is least there. Are minimum moments really the crucial factor though? Would it not be more prudent to place the joints at the point of minimum shear which would be at midspan? My reasoning is that shear across a poorly bonded day joint would be more dangerous than moment. With a moment the steel deals with the tension and any poor bonding in the compression zone will be improved by the compression.
Just wanted to question a normal procedure. Any thoughts?
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
In a typical integrated circuit (IC) design firm, semi-custom design flows are used to ensure that the final manufactured products meet all of their design requirements and can be delivered on schedule. Download Now
A number of terms like “digitization”, “digital twin”, and “digital thread” have started to emerge in the product design world. While these terms have loose and varying definitions, the core ideas that underpin each of these concepts are becoming increasingly important to successful product development. Download Now