Browse > Article

Effect of Cross Beams on Live Load Distribution in Rolled H-beam Bridges  

Yoon, Dong Yong (현대제철)
Eun, Sung Woon (현대제철)
Publication Information
Journal of Korean Society of Steel Construction / v.18, no.5, 2006 , pp. 535-542 More about this Journal
Abstract
In this study, the effects of cross beams on the lateral distribution of live loads in composite rolled H-beam girder bridges, were investigated through three-dimensional finite element analysis. The parameters considered in this study were the inertial moment ratio between the main girder and the cross beam, the presence of the cross beam, and the number of cross beams. The live load lateral distribution factors were investigated through finite element analysis and the customary grid method. The results show that there was no difference between the bridge models with and without a cross beam. The cross beam of the beam and frame types also showed almost the same live load lateral distribution factors. However, the finite element analysis showed that the concrete slab deck plays a major role in the lateral distribution of a live load, and consequently, the effect of the cross beam is not so insignificant that it can be neglected.
Keywords
cross beam; unsuported length; roled beam(H beam); plate girder; live load distribution factor; lateral torsionalbuckling;
Citations & Related Records
연도 인용수 순위
  • Reference
1 대한토목학회, 도로교설계기준 (부록) 하중-저항계수 설계편
2 Kassim M. Tarhini and Gerald R. Fredrick, Wheel Load Distribution in I-Girder Highway Bridges, ASCE Journal of Structure Engineering Vol. 118, pp.1285- 1294, 1992   DOI
3 Baidar Bakht and Leslie G. Jaeger, Ultimate Load Test of Slan- on-Girder Bridge, ASCE Journal of Structure Engineering Vol. 118, pp. 1608-1624, 1992   DOI
4 Demetrios E. Tonias Bridge Engineering, pp.121-128, 1994
5 AISI, Short Span Steel Bridges, American Iron and Steel Institute, 1995