Need a book? Engineering books recommendations...
RE: Structural 'Best Practices'[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: <seaint(--nospam--at)seaint.org>
- Subject: RE: Structural 'Best Practices'
- From: "Conrad Harrison" <sch.tectonic(--nospam--at)bigpond.com>
- Date: Tue, 22 Sep 2009 11:12:28 +0930
Also to note a code of practice is typically adopted by law, and specifies minimum levels of performance, which are considered economically viable to impose on all participants. Not all "best practices" are called up in a handbook titled as such, but are otherwise presented in alternative publications to the codes of practice. "Best practices" tend to impose higher levels of performance, than the codes, and not everyone can afford to implement. Those for stormwater for example, in SA cannot be imposed on a private party by a local government authority (LGA), but the owner/buyer can impose them through a contract. The LGA's do however impose other criteria which make the "best practices" for stormwater more economical than more traditional methods. Similarly complying with the building code, implements minimum criteria for energy efficiency, but the "Green Book" and other specifications present what are considered to be "best practices", they provide higher levels of energy efficiency and may or may not be based on higher use of sustainable technologies. These "best practices" can be imposed by contract and are typically called up in government contracts. Currently energy efficiency to the BCA has little to no impact on structural design. Energy efficiency and sustainable technologies to "best practices" can make the structural design far more cumbersome. Similarly if the voluntary code of practice for construction safety, which presents "best practice" for construction safety, is imposed on a contract, then structural design can become more involved. Best Practices for a structural engineer, may require that these other best practices are to be imposed on a project by the engineer. In other words a best practice for a structural engineer would be to adopt the voluntary code of practice for construction safety. But not that simple. For example the voluntary code is national, recent, largely based on the UK CDM regulations (1994), whilst the SA OHS&W act (1986) and regulations(1995) already implements similar requirements across all industry. Thus best practice for one state, is already largely legal requirement in another. "Best Practice", is what is preferred, but which cannot be economically or politically imposed at this point in time, and therefore cannot be put in the mandatory codes of practice. But government contracts can impose, in an attempt to improve industry (construction safety), or prove technologies (energy efficiency). "Best practice" is really relative to the parties concerned, and need to find out from the party imposing what they actually mean and expect. Is it relative to business practices, the quality of engineering services, is it with respect to the performance of the finished structure/building, or the performance of the fabrication and construction processes as influenced by the structural design, or all of these things? Also the government authority concerned may publish "best practice" guidelines for its suppliers, and which all prospective suppliers are meant to know about. As others have indicated it is more a contractual issue. Do not have to comply with "best practices" if not called up in a contract. On the other hand, following industry/technology based "best practice" may have its benefits. It also helps to beware of what is on the horizon, for "best practice" guidelines may ultimately end up in a code of practice and become mandatory. This may help with a starting point: http://www.istructe.org/technical/db/285.asp http://www.istructe.org/publications/Downloads/RethinkingToolkit.pdf http://www.modelsolutions.net/rethinking-construction-report/contents.htm http://www.construction-innovation.info/index.php http://www.leanconstruction.org/ whilst these are for the UK and Australia and elsewhere, there are probably similar in the USA. Also note these sites largely concern how best design practices lead to best practice in construction. From a QA viewpoint cannot inspect quality in, it has to be designed in: therefore cannot leave "means and methods" entirely to the construction contractor: such is over-the-wall design and poor practice: but unfortunately the traditional basis of building and construction contracts. Regards Conrad Harrison B.Tech (mfg & mech), MIIE, gradTIEAust mailto:sch.tectonic(--nospam--at)bigpond.com Adelaide South Australia ******* ****** ******* ******** ******* ******* ******* *** * Read list FAQ at: http://www.seaint.org/list_FAQ.asp * * This email was sent to you via Structural Engineers * Association of Southern California (SEAOSC) server. To * subscribe (no fee) or UnSubscribe, please go to: * * http://www.seaint.org/sealist1.asp * * Questions to seaint-ad(--nospam--at)seaint.org. Remember, any email you * send to the list is public domain and may be re-posted * without your permission. Make sure you visit our web * site at: http://www.seaint.org ******* ****** ****** ****** ******* ****** ****** ********
- Prev by Subject: RE: Structural 'Best Practices'
- Next by Subject: RE: Tank uplift and repair of tank ring foundation
- Previous by thread: RE: Structural 'Best Practices'
- Next by thread: Min Collateral DL