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minimum bearing for hollow core precast plank
simple questions:
what is the minimum bearing requirement for hollow core precast plank?
what is the minimum steel beam flange width for interior bearing of plank from both sides of beam?
thanks.
i don't know if there's an industry standard, but i usually use a minimum of 2-1/2" bearing, preferably 3" and usually use 1-1/2" or 2-1/2" untempered masonite or korolath bearing strips...
dik
table on page 16. looks like a pretty good manual.
many things to consider. i have a design and engineering handbook from spancrete, which shows "minimum" (not necessarily acceptable) bearing requirements.
this manual shows 3.5" on masonry, 3" on embedded steel angle, 2.5" on steel beam, with 1" gap between abutted ends, you would need a 6" wide flange.
thicker plank, with thicker concrete toppings, with longer spans, with higher live loads may require greater bearing. check with the precast manufacturer and supplier for that job for final design requirements.

2009-09-10, 02:07 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	minimum bearing for hollow core precast plank minimum bearing for hollow core precast plank simple questions: what is the minimum bearing requirement for hollow core precast plank? what is the minimum steel beam flange width for interior bearing of plank from both sides of beam? thanks. i don't know if there's an industry standard, but i usually use a minimum of 2-1/2" bearing, preferably 3" and usually use 1-1/2" or 2-1/2" untempered masonite or korolath bearing strips... dik table on page 16. looks like a pretty good manual. many things to consider. i have a design and engineering handbook from spancrete, which shows "minimum" (not necessarily acceptable) bearing requirements. this manual shows 3.5" on masonry, 3" on embedded steel angle, 2.5" on steel beam, with 1" gap between abutted ends, you would need a 6" wide flange. thicker plank, with thicker concrete toppings, with longer spans, with higher live loads may require greater bearing. check with the precast manufacturer and supplier for that job for final design requirements. __________________ 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]