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cost effects of increased seismic demand -
can anyone advise the cost penalty for construction of an industrial facility (up to three stories high) for a peak ground acceleration of 0.2g rather than 0.14g? the structure will be either a reinforced concrete or steelwork structure (built in the uk, but experience from us would help a lot). also, does anybody have any idea if it would require an upgrade in the plant specs (mainly hvac, electrical cabinets and similar).
thanks in advance,
about 15 years ago, i "bumped-up" the seismic requirement in the project design critera document for a new 500 mw electric generating station from the (then current) required ubc zone 2a (0.15g) to ubc zone 2b (0.20g). our design consultants hollered like a bunch of "stuck pigs" - but we made them stick to it. (this was not an arbitrary move on my part - seismic risk was being downplayed in our area at that time - temporarily, as time has proved).
after we had the consulting firm prepare & submit an estimate of the differential cost, they had to admit that the added cost was reasonable (less than 1% construction cost increase, based on memory).
here is a link that gives an opinion on a similar change (see the info starting on page 13 of the download)

2009-09-08, 02:12 PM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	cost effects of increased seismic demand - cost effects of increased seismic demand - can anyone advise the cost penalty for construction of an industrial facility (up to three stories high) for a peak ground acceleration of 0.2g rather than 0.14g? the structure will be either a reinforced concrete or steelwork structure (built in the uk, but experience from us would help a lot). also, does anybody have any idea if it would require an upgrade in the plant specs (mainly hvac, electrical cabinets and similar). thanks in advance, about 15 years ago, i "bumped-up" the seismic requirement in the project design critera document for a new 500 mw electric generating station from the (then current) required ubc zone 2a (0.15g) to ubc zone 2b (0.20g). our design consultants hollered like a bunch of "stuck pigs" - but we made them stick to it. (this was not an arbitrary move on my part - seismic risk was being downplayed in our area at that time - temporarily, as time has proved). after we had the consulting firm prepare & submit an estimate of the differential cost, they had to admit that the added cost was reasonable (less than 1% construction cost increase, based on memory). here is a link that gives an opinion on a similar change (see the info starting on page 13 of the download) __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]