Engineering Center

I attended the session. Where can I access the quiz and get the PDH?

We are reviewing a connection of a steel relieving angle support bracket to a fully-grouted CMU wall. The bracket is fastened to the wall with Hilti HAS rods with the Hilti HIT-HY 270 system. Per the Product Technical Guide and ICC-ES ESR-4143, the holes in the bracket should have been 1/16 larger than the rod diameter as i...

Is the length of a KB-TZ2 measured from the bottom of the anchor up to the washer, i.e., exclude the washer and nut? (see snippet)

Hello Hilti Engineering, We are resolving a fit-up and installation tolerance issue with a post-installed Halfen strut (HZA 53/34). We intend to use the 1/2 HIS-RN internally threaded insert to secure the channel to the concrete wall. The issue: The channel throat opening is exactly 0.88 (22.5mm). Standard 1/2 hex bolts and s...

Does Hilti have testing or published values for anchors into Roller Compacted Pavement (RCC) pavement?

We have recently become aware of an issue affecting the installation of pins through the roof deck into open-web steel joist chords. Apparently, some joist manufacturers have changed from hot-rolled steel angles to cold-formed or cold-rolled steel angles. This process strain hardens the steel, and we are seeing significant ins...

Are the mineral wool (Item 3) and Hilti CP 777 speed plugs (Item 4) interchangeable in this system? I interpret Note 3 telling me it is one or the other. Are the speed plugs for if the metal deck is directly resting on the CMU block wall and mineral wool would be if there is a gap between the two? Or is the intention to use b...

Will I receive CEU credit for attending this online session?

Hello, I would like to specify the HLC sleeve anchors for anchoring a doubled LVL ledger to a CMU wall to support wood trusses. I am using the NDS to design for dowel connections in single shear so I was wondering, what is the yield strength and ultimate strength of the HLC sleeve anchors? I just see they are carbon steel, so...

I am working on a job with a shallow slab that uses an embed plate with weld studs. We specified a 5 embedment, but the contractor noted that because the plate is 1/2 thick, the weld studs would only be 4-1/2 long. This made me wonder whether the effective embedment depth of the anchor is impacted by the thickness of the base ...