000004829 001__ 4829 000004829 005__ 20141119144557.0 000004829 04107 $$aeng 000004829 046__ $$k2002-06-02 000004829 100__ $$aLiu, Chunhua 000004829 24500 $$aRELIABILITY ANALYSIS OF STEEL GIRDER HIGHWAY BRIDGES 000004829 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference 000004829 260__ $$bColumbia University in the City of New York 000004829 506__ $$arestricted 000004829 520__ $$2eng$$aThe reliability index is examined for steel girder highway bridges designed by AASHTO LRFD Strength I limit state for flexure. The reliability analysis is based on the extensive stochastic finite element method (SFEM). The SFEM takes advantages of the conventional advanced first-order second-moment (AFOSM) in that it considers the mechanic connection between the critical member and other members in the whole structure. The bridges are modeled as grillage beam systems. The results obtained in this study indicate that the reliability index is very sensitive to the lateral distribution of live load. Due to overestimating the lateral distribution of live loads, the AASHTO LRFD specifications for Strength I limit state for flexure result in a conservative design of steel girder bridges. 000004829 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb. 000004829 653__ $$ahighway bridges, reliability, steel structures, noncomposite, random variables, girders, stochastic models 000004829 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002 000004829 720__ $$aLiu, Chunhua$$iWang, Ton-Lo$$iHuang, Dongzhou 000004829 8560_ $$ffischerc@itam.cas.cz 000004829 8564_ $$s648508$$uhttp://invenio.itam.cas.cz/record/4829/files/402.pdf$$yOriginal version of the author's contribution as presented on CD, . 000004829 962__ $$r4594 000004829 980__ $$aPAPER