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  • Users: Hansonn
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  1. Hansonn

    Bridge railing: design forces

    Hi bridge experts, Where the numbers in Table A13.2-1 (AASHTO LRFD of any version from 1998 to 2010) came from? There are some commentary for the load distribution lengths, however there is no comment for forces, eg Ft, Fv, Fl. Are there any relations between test levels in NCHRP Report 350...
  2. Hansonn

    Allowable deflection of polypropylene arch

    Hi people, In ASTM F2787-09, the serviceability condition requires that the deflection (change in rise and span) under service loads be limited to 2.5% of the nominal rise and span. I am not familiar with ASTM. Questions: 1. What included in the service loads? What modulus of the arch...
  3. Hansonn

    Bridge railings: procedure for determining the test level

    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...
  4. Hansonn

    How to model uniformly distributed lane load in Space Gass

    Dear Aussie bridge engineers, I am new to Space Gass. I am trying to run a grillage analysis but cannot model the uniformly distributed lane load. Could any one explain to me, please? I appreciate any help. Han

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