Bridge railings: procedure for determining the test level
Bridge railings: procedure for determining the test level
(OP)
Hi bridge engineers,
AASHTO specification 'Guide Specifications for Bridge Railings' 1989 includes a procedure for determining an approproate performance level for a given site. This procedure is not included in NCHRP Report 350. Please advise:
- What documents or AASHTO specifications also include this procedure?
- What is the current practice in USA in determining an appropriate test level for a bridge site?
Any idea would be greatly appreciated.
Hanson
AASHTO specification 'Guide Specifications for Bridge Railings' 1989 includes a procedure for determining an approproate performance level for a given site. This procedure is not included in NCHRP Report 350. Please advise:
- What documents or AASHTO specifications also include this procedure?
- What is the current practice in USA in determining an appropriate test level for a bridge site?
Any idea would be greatly appreciated.
Hanson





RE: Bridge railings: procedure for determining the test level
AASHTO LRFD Bridge specs provide guidance on the design of non-standard railings & barriers.
Hope that helps.
RE: Bridge railings: procedure for determining the test level
You're right, the selection of a railing is based on a risk assessment in which traffic volume is considered. I have no problem with the design of the railing, however, the procedure for determining the appropriate test level for a bridge site is not clear to me.
Hansonn
RE: Bridge railings: procedure for determining the test level
Take a look at the LRFD Bridge Specifications, Section 13.7.2, which describes the traffic conditions of the test levels.
RE: Bridge railings: procedure for determining the test level
Regards,
Hansonn
RE: Bridge railings: procedure for determining the test level