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Re: Design of bollards

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Assuming your intent is to protect persons/property, not minimize damage to the
car (i.e. does not need to conform to NCHRP 350 requirements), why don't you
design it for a 10 kip load at the top of the bollard.  This loading is defined
in AASHTO Standard Specifications for Highway Bridges, 16th Edition with
Interims to 1998, Section 2.7.1, Vehicular Railing.


Please respond to seaint(--nospam--at)

To:   "INTERNET:seaint(--nospam--at)" <seaint(--nospam--at)>
cc:    (bcc: Hector Morera/NYC/AmmannWhitney)
Fax to:
Subject:  Design of bollards

Can anybody on this list point me to a standard that deals with the design
of bollards to resist the impact of motor vehicles.  I often have to deal
with them on projects yet nobody seems to know what design criteria should
be nor what sort of design methodology is used.

Thanks in advance for any assistance.

Mark Gilligan