几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量 - 查看单个帖子 - dominion bridge joist information required

dominion bridge joist information required
dominion bridge was a canadian company that used to produce steel joists. the short span steel joists had a cold formed steel 'hat' section that was used for both the top chord and the bottom chord and they were numbered in size from 2 to 6 or 8 (i think). the shape of the hat was approximately 1" horizontal, 1-1/2" downwards at a 45 degree angle, 2" horizontal, 1-1/2" upwards at a 45 degree angle and 1" horizontal. does anyone have information on the steel yield (i think it was 55 ksi) and the section properties of the 'hat' sections?
dik
check out our whitepaper library.
what years were they producing these owsj?
the building was constructed about 30 years ago... roughly 1970. db used to fabricate short, intermediate and long span steel joists. the short span and possibly the intermediate span used the hat sections. i used to have catalogues, but they have disappeared over the decades. db is no longer a company, but, the hat section was proprietary and may have been used by other firms in the us.
thanks for the response, dik

2009-09-08, 07:17 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	dominion bridge joist information required dominion bridge joist information required dominion bridge was a canadian company that used to produce steel joists. the short span steel joists had a cold formed steel 'hat' section that was used for both the top chord and the bottom chord and they were numbered in size from 2 to 6 or 8 (i think). the shape of the hat was approximately 1" horizontal, 1-1/2" downwards at a 45 degree angle, 2" horizontal, 1-1/2" upwards at a 45 degree angle and 1" horizontal. does anyone have information on the steel yield (i think it was 55 ksi) and the section properties of the 'hat' sections? dik check out our whitepaper library. what years were they producing these owsj? the building was constructed about 30 years ago... roughly 1970. db used to fabricate short, intermediate and long span steel joists. the short span and possibly the intermediate span used the hat sections. i used to have catalogues, but they have disappeared over the decades. db is no longer a company, but, the hat section was proprietary and may have been used by other firms in the us. thanks for the response, dik __________________ 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]