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Floor-beam web cutout shape analysis in orthotropic steel bridge deck(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2012年02期
Page:
58-64
Research Field:
Publishing date:

Info

Title:
Floor-beam web cutout shape analysis in orthotropic steel bridge deck
Author(s):
WANG Chun-sheng;  FU Bing-ning;  ZHANG Qin;  FENG Ya-cheng
Key Laboratory for Bridge and Tunnel of Shaanxi Province, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
bridge engineering;  orthotropic steel bridge deck;  cutout of crossbeam;  parameter analysis;  stress distribution;  fatigue
PACS:
U443.31
DOI:
-
Abstract:
In order to improve the fatigue orthotropic properties of steel bridge deck, the cutout shape was optimized by numerical simulation. The calculation models of four common cutouts were established, and the finite element model was calibrated by comparing the calculated results with the measured values derived from a full scale orthotropic steel deck test specimen with U shape cutouts. The effects of the cutout shapes and geometry size on the stress distribution at the crossbeam web cutouts were discussed. The numerical results show that the stress distribution of the Haibach and circular shape cutouts is rational, and the free edge radius of the additional cutouts is a key factor to affect the stress distribution at the crossbeam web cutouts. The effective measures were proposed to reduce the stresses at the floor web cutouts based on the calculated results, which give a useful technical reference to the fatigue design of steel bridge deck. 1 tab, 13 figs, 10 refs.

References:

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Last Update: 2012-04-30