کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9668124 | 865800 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Deflection of simply supported box girder including effect of shear lag
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The shear lag has been studied for many years. Nevertheless, most of the studies are related to the effect of the shear lag on stress distribution and very few have investigated the effect on deflection, although some design codes have formulas for the effect of the shear lag on deflection. In this conjunction, the present study carries out three-dimensional finite element analyses for various box girders to investigate the deflection at the mid-span. The multimesh extrapolation is employed to ensure the accuracy. The present study thus reveals the influence of the parameters that characterize the geometry of a box girder on the deflection. It is also shown that the formulas adopted in the design codes underestimate the deflection considerably. Based on the present numerical results, empirical formulas are proposed to compute the deflection magnification factors that account for the difference between the deflections due to the finite element analysis and the beam theory.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 84, Issues 1â2, December 2005, Pages 11-18
Journal: Computers & Structures - Volume 84, Issues 1â2, December 2005, Pages 11-18
نویسندگان
Chartree Lertsima, Taweep Chaisomphob, Eiki Yamaguchi, Jaturong Sa-nguanmanasak,