Any help on this is much appreciated. I've tried everything I can, even calling the manufacturer for their PID settings and gotten no where on this. I took a Tenney TJR thermal chamber, removed the old Watlow controller and replaced it with a new Watlow F4T. The heating cycle practically took...
How about shooting a mid span elevation, and then jacking it up from below until a certain amount of deflection is removed? That ought to temporarily remove the stresses while you reinforce the beam.
If you have a pretty big anchor bolts I would recommend two setting plates to prevent the bolts from racking. Racking is a very common issue with CIP anchors bolts. One near the bottom of the bolts and one a couple inches above TOC. The top one sandwiched with nuts and the bottom would require...
Cool, I hadn't made the connection between torsional capacity and buckling before. Maybe they're a little ahead of the Washington bridge designers and that longitudinal beam is to prevent the deck coming down if an oversize truck hits it.
This is a picture of a large parking structure being built on the site next to the one I'm on right now. It has me puzzled because it's a concrete deck over a tunnel(about an 18' span) and it has the concrete beams on the topside of what I reckon is an 8"-12"" deck! The two downsides to this I...
Thanks for the input guys. Yes, that is an NRV on the output side. Is the difference between that and another valve the quality of the seal? I haven't seen a park yet with valves on both sides, probably for cost, which makes me curious about how messy the pump swaps are. They must have to drain...
All,
I have a curiosity question here. I've been to a few different recreational waterparks and seen the pumping systems that provide the ride waterflow. What I'm wondering is it correct to put the valve on the output or input side of a pump? Right now I'm in China and they're putting all the...
Thank you BA. I'll try finding something in the AISC about the effective width of the top flange. I imagine it's dependent on distance from the webbing. I'll try recalculating the moment of inertia as if it was a composite beam and put it up here for review.
Yes, it's definitely the worse place for a splice and that notch in the splice plate couldn't be in a worse place. I'm in the rough spot of coming into this firm and being asked to review previously constructed work. This splice really caught my attention and the engineer who first deemed it...
Any assistance with this question is much appreciated. I've been talking with two Ca. Civil P.E.'s about this connection and we still don't have a definite answer. What we have is two 10' bed sections being spliced together. The span is 20' and the splice is at the center of the span. One P.E...
