Need a book? Engineering books recommendations...
RE: LRFD Load Factors.[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
- Subject: RE: LRFD Load Factors.
- From: Dave Meney <yenem(--nospam--at)iinet.net.au>
- Date: Fri, 20 Nov 1998 16:14:37 +0800
I believe that you can use the same LRFD load factors anywhere in the world. The factors are not a function of location, but of load. The local jurisdiction will prescribe the intensity of the load to match the perceived risk (50 year wind, 10% exceedence in 50 years, ect). To deal with different materials or load effects, the phi factor is used. As long as the material is the same, I don't believe that these would change based on location either. I hope this helps. I think you are only right when dealing with a consistent set of codes and this hasn't been expressly stated in this thread so far. In New Zealand for example, load factors and phi factors are different to Australia codes, but when only one or the other is used both codes provide a similar design and factor of safety (excepting earthquakes - lets not get sidetracked on this example!). Using the Australian loading standards in combination with New Zealand material standards would not be correct. I think load factors apply only to the code that are stated in. A code which has poorly defined loadings for say wind or earthquake would/could have a higher load factor to compensate and therefore be only applicable when used within that code. Material quality and more importantly construction quality DO vary around the world. I would expect material factors to vary on this basis alone. This makes me think that not only is it appropriate to use a consistent set of standards for design, the construction specifications would also need to be those developed around those same codes. From personal experience, it is difficult specifying local specifications in a different part of the world where the industries there have there own codes or an other country's code and are unfamiliar with the specified ones. Regards Dave Meney
- Prev by Subject: Re: LRFD Load Factors.
- Next by Subject: FW: LRFD Load Factors.
- Previous by thread: Re: LRFD Load Factors.
- Next by thread: FW: LRFD Load Factors.