| 简支组合曲梁与简支组合直梁上焊钉剪力比较 |
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| 引用本文： | 曾明根,苏庆田,吴冲.简支组合曲梁与简支组合直梁上焊钉剪力比较[J].桥梁建设,2008(6). |
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| 作者姓名： | 曾明根 苏庆田 吴冲 |
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| 作者单位： | 同济大学桥梁工程系,上海,200092 |
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| 摘 要： | 采用ANSYS有限元程序计算了不同荷载、不同焊钉布置形式下简支组合曲梁和简支组合直梁的受力,比较焊钉在组合曲梁和组合直梁中的剪力分布.组合曲梁的焊钉与组合直梁相比,不仅有切向剪力还有法向剪力,法向剪力沿梁长度方向是在梁中间大两端小.当组合曲梁布置单排焊钉时,可以忽略法向剪力分量,用焊钉切向剪力近似代替其总剪力是可行的.当组合曲梁布置双排焊钉时,同一截面的内、外侧两排焊钉受力不均匀,外侧焊钉剪力平均值是内侧焊钉剪力平均值2.52倍以上,在设计时需注意.
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| 关 键 词： | 组合梁 简支梁 曲梁 焊钉 剪力 |
Comparison of Shear Force of Welded Studs in Simply-Supported Composite Curved Beam and Simply-Supported Composite Straight Beam |
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| ZENG Ming-gen,SU Qing-tian,WU Chong.Comparison of Shear Force of Welded Studs in Simply-Supported Composite Curved Beam and Simply-Supported Composite Straight Beam[J].Bridge Construction,2008(6). |
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| Authors: | ZENG Ming-gen SU Qing-tian WU Chong |
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| Institution: | ZENG Ming-gen,SU Qing-tian,WU Chong(Department of Bridge Engineering,Tongji University,Shanghai 200092,China) |
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| Abstract: | The finite element program ANSYS is used to calculate the mechanical behavior of both the simply-supported composite curved beam and simply-supported composite straight beam subjected to different loads and with different welded stud layout,and the shear force distribution of the studs in the two kinds of the beams is compared.In comparison to the studs in the composite straight beam,the studs in the composite curved beam not only have the tangential shear force,but also the normal shear force and the norma... |
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| Keywords: | composite beam simply-supported beam curved beam welded stud shear force |
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