| 部分预应力砼受弯构件截面中和轴的简捷计算 |
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| 引用本文： | 田秀梅,史玉廷.部分预应力砼受弯构件截面中和轴的简捷计算[J].河北工业大学学报,2002,31(1):108-110. |
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| 作者姓名： | 田秀梅 史玉廷 |
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| 作者单位： | 1. 天津红桥区职工大学,天津,300131
2. 河北工业大学,土建学院,天津,300132 |
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| 摘 要： | 部分预应力砼梁缝宽度计算或疲劳验算以及钢筋砼小偏压构件正截面强度计算，均需求算关于截面受压区相对高度系数ζ的三次方程，用常用的数学方法一次换元消元ζ^2项，给出ζ的精确解，此法不仅可方便的用于工程设计，而且可避免进行复杂的抗裂验算。
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| 关 键 词： | 预应力砼受弯构件 截面受压区 相对高度系数ζ |
| 文章编号： | 1007-2373(2002)-01-0108-03 |
A Simplified Method for Determining Neutral Axis of Partially Prestres sed Concrete Beams |
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| TIAN Xiu-mei,SHI Yu-ting.A Simplified Method for Determining Neutral Axis of Partially Prestres sed Concrete Beams[J].Journal of Hebei University of Technology,2002,31(1):108-110. |
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| Authors: | TIAN Xiu-mei SHI Yu-ting |
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| Abstract: | For evaluating the crack width and checking the fatigue strength of a partially prestressed concrete beam, or calculating the strength of normal section of compression member with small eccentricity. It usually needs to compute the value of of a relative height in the compression region of the section. This paper offers an accurate calculation of by the currently used mathematical method of eliminating term by exchanging el-ement to solve the cubic equation for . it is very convenient for engineering design and avods the complicated crack calculation has been proposed. |
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| Keywords: | prestressed concrete beam: compression region of the section value of of a relative height |
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