| 带腹板开洞钢梁弹性挠度计算 |
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| 引用本文： | 耿璐,周东华,赵慧敏,郭稳娟.带腹板开洞钢梁弹性挠度计算[J].四川建筑科学研究,2011,37(6):14-17. |
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| 作者姓名： | 耿璐 周东华 赵慧敏 郭稳娟 |
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| 作者单位： | 昆明理工大学建筑工程学院,云南昆明,650224 |
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| 基金项目： | 国家自然科学基金项目(50778086);教育部博士点基金项目(20095314110008);建工学院博士基金项目(14078041) |
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| 摘 要： | 钢梁腹板上开洞,使得洞口区域不再满足平截面假定,梁的挠度曲线也不能再用梁理论求解,针对目前还没有较好的计算H型钢钢梁腹板开洞的弹性挠曲线的方法,本文推导了计算钢梁腹板开洞的计算公式,该法力学模型简洁清晰,计算结果精度也较高,与有限元软件计算的结果吻合性较好.
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| 关 键 词： | 带腹板开洞钢梁 挠度 次弯矩 抗弯刚度 |
Elastic deformation of beams with web openings |
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| GENG Lu
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ZHOU Donghua
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ZHAO Huimin
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GUO Wenjuan.Elastic deformation of beams with web openings[J].Building Science Research of Sichuan,2011,37(6):14-17. |
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| Authors: | GENG Lu ZHOU Donghua ZHAO Huimin GUO Wenjuan |
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| Affiliation: | (Faculty of Civil and Architectural Engineering,Kunming University of Science and Technology,Kunming 650224,China) |
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| Abstract: | If a web opening exists in a steel beam,the whole section in the range of web opening remains no longer in a plane.In this case the flexural deflection cannot be calculated with elementary theory of beams.Currently there is still not a method available for calculation of deflection beams with web openings.In this paper a calculation method is developed,which is simple and provides a good accuracy of results,which shows a good agreement with those from FE-method. |
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| Keywords: | steel beams with web openings deflection secondary bending moments flexural stiffness |
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