how does the R value in UBC91 compare with the R value in UBC 97. For example is it appropriate to change an R value of 7 in UBC 91 and change it to an "equivalent" R value of 10 in UBC 97?
Does anyone have experience in welding AISI 4140 material to ASTM A36 material? Can I use E70xx electrodes? Is preheat and postheat necessary? I contacted AWS and they had no help on this.
How does one determine the allowable live load on a platform? Case in point, a maintenance platform is to be placed under a piece of of equipment. The purpose of the platform is to provide maintenance access to change out a 500 pound valve. Any ideas would be helpful. Thanks.
One of my engineers is proposing using this material due to a very tight construction schedule. My concern is using basically a patching material to construct an elevated slab. From what I know about them they have an extremely short placement time and workability is minimal. Also, I would...
Does anyone have any experience in the use of Calcium Aluminate Cement or Magnesium Phosphate Concrete for elevated floor slabs. Are they appropriate for use in elevated floor slabs in lieu of standard concrete.
Lets just say that I think that NSPE has a very admirable stance on this issue and I support it whole heartedly, however, like everything else the application of the theory and the reality of the situation are very different. This applies to both members and nonmembers of NSPE.
I've been in this racket for 22 years with several employers and I've come to the conclusion that engineers on the whole will screw each other in the name of getting their foot in the door. When they get the job another engineer will undercut them again in the name of getting their foot in the...
Welding across the tension flange is definitely not adviseable. If for no other reason, welders today are not that good and if your putting a fillet weld in there is usually and undercut issue giving rise to stress concentrations and loss of section issues.
