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受压构件偏心距增大系数η的计算
杨振华1, 于志秋2
1.杨凌职业技术学院 水利系;2.西北农林科技大学 水利与建筑工程学院
摘要:
针对现行钢筋混凝土设计规范中η计算公式在应用方面存在的某些不足,采用有限元迭代法并考虑二阶弯矩的影响,得出了在不同端弯矩和约束条件下偏压构件任意截面处侧向挠度f与相应的η值。例证检验结果表明,该方法所得结果合理可靠。
关键词:  受压构件  偏心距增大系数  侧向挠度  有限元迭代法
DOI:
分类号:F276.6
基金项目:
The calculation of bias distance increasing coefficient η of pressure bearing elements
LI Xiao ning,HOU Jun qi,ZHAO Zhi hui,LI Xiao ning,HOU Jun qi,ZHAO Zhi hui
Abstract:
To be in light of the fault of increase coefficient of bias distance η formula in current RC standard in practice,considering the influence of two stepped moments by using limited unit theory again and again,we reached the η of corresponding side and side deflection f of biasing structure whose column ends are different and restraint conciliations are not the same.By contrast,the result is reliable and rational.
Key words:  pressure bearing element  increase coefficient of bias distance  side deflection  method of limited unit again and again

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