When working in or next to an existing structure, there's always an element of uncertainty when it comes to dimensions. The engineer can show a dimension that is close, but when it comes to something like steel fabrication, an inch off can be a huge deal.
I'm just wondering how others go about...
Cap plates on columns that support runway girders should be flexible enough to allow the ends of the girder to rotate. (pinned ends)
This means, the plate has to be thin enough to prevent yielding the extreme fiber so it always remains in the elastic range...or so I believe. Would any of you...
Is there any possible way to support heavy (100kip reactions) rail cranes, by any means other than dedicated columns located directly under the rail beams? I'm well aware of weld fracture issues, and many manuals say not to bracket above 50kip loads. Just wondering if anyone has overcome this...
If you (a SE) design a driven pile foundation system that is near a neighboring residence, and the pile installation causes cracks in the residence, who is responsible? Engineer? GC? Owner of new foundation?
Would choosing auger cast piles in lieu of driven piles absolve the engineer of any...
I think this is somewhat technical, so I'll try this forum. A decade ago, an owner hired an architect to modify a building that causes snow drift load on areas that weren't designed for snow drift. Everything over the 10 years of winters and snow is fine. Then a snowstorm that dumps snow...
I'm looking at a possible project for a printing press that would require an insanely small deflection tolerance (0.03mm/m). I think there's so many things that could go wrong. Heck, the natural shrinkage of the footing concrete could exceed this. How would one go about getting a geotechnical...
I just read they're going to build a steel box to put on top of the damaged well head in the Gulf. They said it will take 3 months to build it. Seems like a crew working 24-7 could build this thing in a week even if it's two stories tall. Doesn't make sense. Is there something tricky I'm...
If you have a normal reinforced concrete beam (non PT) that develops flexural cracks, how do you determine the reduced shear capacity at the cracked section? Cant seem to find any references that point to an answer.
Has anyone pretensioned a 3/4" bolt THEMSELVES and later removed it? Physically, how difficult was it? Would you recommend air tools to help with removal?
I'm looking at pretensioning bolts myself (don't ask why) and am trying to figure out how big of a pain this would be...
To the civil engineers out there, how well do you feel ASCE represents the profession? What do they do well, and what not?
What do you wish they could do better?
Say you you're splicing two bars of Grade 36 steel end to end with a full pen butt weld. Will the weld material have the same linear elastic response as the base material? ~E=29,000ksi?
Would it be close enough that a strain gage wouldn't notice the difference if it were on the weld versus...
I work for an A/E firm. Been 5 years since my BS and recently passed the SE2 exam. I'm used to doing a variety of work up to mid rise buildings and am considered the "senior engineer" in the department as everyone else is fresh grad under 2yrs experience. As such, I've moved up the pay scale...
I'm going back to school for a masters degree in five months. I'm a licensed SE and am working on a project involving a multistory lightgage design. The problem I forsee is that much of the lightgage design is delegated to the lightgage supplier's engineer in the shop drawing phase, and I'll...
