| 基于材料价格的钢筋混凝土梁经济配筋率估算 |
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| 引用本文： | 王秀哲,李红梅. 基于材料价格的钢筋混凝土梁经济配筋率估算[J]. 江苏建筑, 2008, 0(3): 40-41 |
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| 作者姓名： | 王秀哲 李红梅 |
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| 作者单位： | 南京市江宁区建筑安装工程质量监督站,江苏,南京,211100;海通集团,江苏,南京,211100 |
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| 摘 要： | 近几年建筑材料价格波动较大,直接影响到建筑物的总造价。文章通过建立钢筋混凝土梁成本与截面尺寸和配筋率的相关函数,采用求函数极值的方法推导出不同混凝土和钢材价格条件下经济配筋率的近似估算公式,并提出设计时对应于经济配筋率的初选截面尺寸建议计算公式。文章最后提供了相关算例。
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| 关 键 词： | 材料价格 钢筋混凝土 梁 经济配筋率 |
| 文章编号： | 1005-6270(2008)03-0040-02 |
| 修稿时间： | 2007-11-09 |
Approximate Calculation on Economical Reinforcement Percentage of Reinforced Concrete Beam Based on Material Price |
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| WANG Xiu-zhe,LI Hong-mei. Approximate Calculation on Economical Reinforcement Percentage of Reinforced Concrete Beam Based on Material Price[J]. Jiangsu Construction, 2008, 0(3): 40-41 |
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| Authors: | WANG Xiu-zhe LI Hong-mei |
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| Affiliation: | WANG Xiu-zhe1 LI Hong-mei2(1.Construction Engineering Quality Supervision Station,Jiangning District,Nanjing Jiangsu 211100 China,2.Haitong Group,Nanjing Jiangsu 211100 China) |
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| Abstract: | In this paper,a correlative function that is about the cost of reinforced concrete beam with section size and reinforcement percentage was set up.By the way of calculating extremum of the function,the approximately formula of economical reinforcement percentage,which is different value with the market price of concrete or steel bar varying,was deducted.The formula for choosing initial section size was also advised.A sample was provided in the paper's end. |
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| Keywords: | price of materials reinforced concrete beam economical reinforcement percentage |
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