Engineering Center

I have two files both with the same arragement and anchor conditions. One of them is showing failed due to not meeting min edge distance. Is there a glitch in Profis?

Why are the edge distance factors in tension higher for cracked concrete vs uncracked concrete? Is this because of the Case 1 & Case 2 minimum edge and spacing requirements? Also, in some cases, it appears that cracked concrete gives better pullout capacity in tension after the spacing factor and edge distance factor are appli...

HI there, we need to know which kind of bolts are proper to fasten an existing stair ramp to wall/beams? please note that the stair is in a subway station and heavily loaded in terms of vibration and the bolts have to be resistant against fire as well. Is there any test results for functionality of mechanical bolts during fire...

Dear Staff: I met a situation that I need to get design works for Vu=25k with 6" eccentricity and 31440 lb-in torsion and 2.5 kip wind loads on a connection. The limitation is the wall only 16" wide and the connection is centered. The concrete breakout failure in Shear is the mean failure. Would deeper embedment could help to...

What is the recommended post-installed stainless steel anchor that can be used with ACI 17.2.3.4.3(a)? HILTI PROFIS only allows KWIK HUS EZ-SS316, KWIK HUS EZ-C SS316 and HSL-3. All of which have diameter limitations and are unsuitable for vessel anchorage. Additionally it appears that there are zero options, per PROFIS, for c...

Hi, can I get a hardcopy of the North American Product Technical Guide please? I use your Profis but it'd be very useful to have also some design values at hand.

We are designing an antenna mount onto a penthouse which has a brick facade and a concrete wall. for embedment since the facade is non structural we should assume all effective embedment is in the concrete and design the threaded rod total length includes whatever width the facade is and the min embedment, correct? I have incl...

HI, could we use Filler Board or Backing Rod as alternative to Mineral Wool for smoke systems. if the answer is yes, please provide us official letter or system which clarify that. Regards,

We are designing a reinforced concrete tank and want to use the Kwik Bolt TZ2 in the tank walls. The anchors will be installed in a dry condition, however, they will be submerged in operation. Are the Kwik Bolt TZ2 anchors appropriate for a submerged application?

In taking the quiz after the presentation, questions #3 and #5 are either quite tricky or perhaps I misunderstood the presentation. I thought steel (anchor) failure and concrete breakout were precluded from the analysis when anchoring through the steel deck.