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Nesgroup address: alt.building.construction - Date & Time for the message: Tue, 14 Jun 2005 13:52:40 -0700
/ Author of the message: "J" |
Title of the message: |
Re: Using 1" thick cedar decking okay?
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Text of the message: |
"toller" <toller@yahoo.com> wrote in message news:wiCre.1025$PK3.240@news02.roc.ny... > > > Actually it has much less than half the bending strength. Resistance to > > bending is proportional to the cube of the depth. > > Admittedly it was 30 years ago and things change, but when I took mechanical > engineering it was proportional to the square. You integrated the material > multiplied by it's distance from the center; that means squared, no? Perhaps you didn't do that well in mechanical engineering... :-) Moment of inertia (I) for a rectangular beam with width b and height h has been I = bh^3/12 for as long as I can recall. And for deflection (d) of a simply supported beam we use the formula d = PL^3/48EI Other formulas for bending (canteliever, multiple supports ...) vary, but all the ones I can recall off the top of my head include I in the denominator. |
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Estaplace.com is one the Ceglia Giovanni projects, started on 20 July 2005, and online since 20 August as a real estate platform for listings, mainly operating on the Italian and American/English market in the Internet, Estaplace would like to become the point of referiment for home sellers and home buyers, a site where private owners or real estate agencies can have the possibility to show their offers to the world. Estaplace.com is only one of the Giovanni Ceglia's sites. Everyday Giovanni Ceglia works to improve new Internet tools and services for online marketing and business. Estaplace.com will become the biggest portal for real estate business and investments online.