Rational Method to Design Vehicular Barriers 4

There have been many questions posted over recent years about how to design bollards, traffic barriers, guardrails, etc. for vehicular impact forces.

The September 2010 issue of Structure Magazine (

http://www.structuremag.org/index.aspx)

has an article entitled "A Rational Method to Design Vehicular Barriers" that some of you might find interesting.

I can't link directly to it as I need to update my computer's flash program but click on the link above and you should be able to find it.

 

[slickdeals]

Direct Link

http://www.structuremag.org/Archives/2010-9/C-StrucPractices-Iqbal-Sept10.pdf

 

[Ron]

I noticed the author is a P.E., S.E., and a lawyer....

Hey JAE...you're one designation behind...how's that law degree coming?

 

[JAE]

My wife is the law.

 

[msquared48]

And there's nothing new under the sun...

Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask

 

[sundale]

I cannot reproduce the author's results in the bollard example on p.24 of the article.

kb=3EI/L^3=1581 kip/in or 1.90x10^7 lb/ft (not 10^6 lb/in?)

Fully plastic force = FyZ/18" = 66.0 kip (not 56.7 kip ?)

Where/how does one get the 6.8" deflection?