Engineering Center

Hi, we are trying to fire stop new penetrations in an existing composite concrete floor (concrete in metal pan). There is spray fireproofing to contend with and difficult access. The penetrants are 3 diameter plastic drain lines. The floors are required to be a 2-hour fire separation. I have attached photos of attempted in...

Any recommendations for directly fastening light fixtures or mechanical piping to an existing siporex panel roof deck? (autoclave aerated concrete)

I have a W610 x 101 Steel Beam penetrating a 2-hour fire separation and am looking for a Listed Firestop System for the penetration. Can you advise pleas.

According to UL Guide a metallic pipe may pass through the opening in the wall or floor assembly at any angle, provided the annular space is maintained on both sides of the wall or floor assembly and all other specifications in the design are satisfied. Does this apply to a situation where the pipe is half way inside a wall le...

i am looking to see how many packages of RE500 epoxy i will need for 72, 60mm holes 400mm deep.

Trying to use the diaphragm connection designer and noticed that in the side lap connections options, there isn't a button punch option. Is that something that will be added or can be added?

Do you have more info on what is required for a cast in place anchor to be considered torqued? CSA Annex D Clause 9 requires additional edge distance and spacing requirements for a torqued cast-in-place anchor, and I see the option in Profis, but I'm not finding a clear definition on what it requires to be considered torqued? ...

Are there difference in fastening requirements for simple roof deck versus concrete composite deck? Does Hilti offer shear studs with fastening products?

I attended today's webinar on moisture content with adhesive anchors, and I came away unsure about the difference between water-saturated and water-filled holes. If I read the installation instructions for the RE 500, they say that for water-filled holes, the water must be blown out of the hole as part of the cleaning process....

Hello, I need to assess the capacity of anchor bolts on a monopole that were installed using the HVA adhesive anchor system using CSA A23.3 Annex D. Specifically, I need to know the characteristic bond stress in cracked and uncracked concrete. Is there a parameter table similar to the one for HIT-HY 200 (Table 82 of the Hili...