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| Stochastic analysis of shrinkage and creep effect of steel-concrete composite beam |
| Received:June 18, 2012 Revised:October 20, 2012 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201401012 |
| KeyWord:steel-concrete composite beam shrinkage and creep probabilistic analysis Latin Hypercube Sampling response surface method |
| Author | Institution |
| 赵刚云 |
四川交通职业技术学院, 成都 ;西南交通大学 桥梁工程系, 成都 |
| 向天宇 |
西南交通大学 桥梁工程系, 成都 |
| 徐腾飞 |
西南交通大学 桥梁工程系, 成都 |
| 占玉林 |
西南交通大学 桥梁工程系, 成都 |
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| Abstract: |
| Steel-concrete composite girder is consisted of concrete slab and steel girder through shear connectors.Owing to shrinkage and creep of concrete,redistribution of structural internal force and stress should be caused.It is widely accepted that shrinkage and creep of concrete possess large randomness,which may induce the stochastic long-term structural responses.The influences of stochastic variation of creep and shrinkage model,compressive strength of concrete,elastic modulus of concrete,ambient humidity,elastic modulus of steel,load and stiffness of shear connector on structural responses of steel-concrete composite beam are concerned in the present study.With Latin Hypercube Sampling and Monte Carlo sampling combining with Response Surface Method,the time-variant probabilistic responses of deflection and stress of steel-concrete composite beam are studied. |
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