| 基于等效面积法的蜂窝梁挠度计算方法研究 |
| Research on the Deflection Calculation of Castellated Beam Based on Area Equivalent Method |
| 投稿时间：2011-07-05 |
| 中文关键词:蜂窝梁 空腹桁架理论 等效面积法 挠度 孔高比 距高比 |
| 英文关键词:castellated beam open web truss theory area equivalent method deflection diameter depth ratio space depth ratio |
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| 中文摘要: |
| 为了研究蜂窝梁挠度的计算方法，以费氏空腹桁架理论为基础，考虑了蜂窝梁由于腹板开孔对其抗剪能力的影响，在挠度计算中计入剪力引起的剪切挠度和剪力次弯矩引起的挠度，考虑蜂窝梁孔高比和距高比的影响，根据面积等效和惯性矩等效的原则推导出简支蜂窝梁的实用挠度计算公式。以本文提出的计算公式为依据，分别对不同蜂窝梁挠度进行计算，同时利用有限元软件ANSYS对相同条件下的蜂窝梁进行仿真分析，将公式计算结果与有限元分析结果对比，结果证明本文所提的挠度计算公式具有较高的准确性。 |
| 英文摘要: |
| In order to research the deflection calculation of castellated beam, the shearing deflection and the deflection caused by shear secondary moment is considered in the calculation of deflection to consider the influence of the web opening of castellated beam. Based on the hypothesis of open web truss theory and the principle of area and inertia equivalent, the practical formulas for deflection calculation of simple supported beam are proposed considering the influence of diameter depth ratio and space depth ratio of the web. Then the deflections of various castellated beams are calculated based on the formula, and at the same time the simulation analysis is carried out for the same beams by ANSYS. By comparing the formula calculation results with the numerical simulation results, the precision of the formula for deflection is verified． |
| 李鹏飞,王新敏,袁泉,郭猛.基于等效面积法的蜂窝梁挠度计算方法研究[J].石家庄铁道大学学报(自然科学版),2011,(3):7-11,19. |
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