Bolt to be used in Glazing location

Author: Pon Dhileepan

While working in a project called Bateman Bay, TEK1 came across a situation where PFC members are provided to support glazing. PFCs are laid flat, a 50mm U channel is run along the PFC which supports the glass. The below image is the cross section across the glazing and it elucidate the set up.

Problem 1:

These PFCs are connected to columns by 10mm end plate & 16dia 8.8s bolts. The problem arose here as the bolt head of 8.8s bolt would clash with the glass. Refer below image for clarity.

Hence, TEK1 raised a query as to whether they can cut the glass where ever bolts clash or use CSK bolts. The structural engineer changed the 8.8s bolts to CSK bolts.

Problem 2:

Another problem came as the PFC web is just 4mm whereas the CSK head is 8mm. The bolt head will still clashes with glass.

Then we proposed to weld an 8mm plate under the PFC and CSK drill is to be made together. The proposal is accepted. The below images show that the glazing runs without any hinderance.

TEK1 detected the issue earlier which saved cost in cutting the glass at site. Structural engineer often do not consider these kind of clashes and it is the duty of the modeler to find this out and make this to structural engineer’s knowledge.

Thanks for reading.