| 塑料波纹管预应力摩阻损失测试与分析 |
| |
| 引用本文： | 李昌锋.塑料波纹管预应力摩阻损失测试与分析[J].甘肃科学学报,2009,21(2):38-40. |
| |
| 作者姓名： | 李昌锋 |
| |
| 作者单位： | 兰州交通大学,工程咨询有限责任公司,甘肃,兰州,730070 |
| |
| 基金项目： | 兰州交通大学工程咨询有限责任公司专项科研基金 |
| |
| 摘 要： | 结合龙洞大桥的预应力摩阻损失试验，介绍了摩阻试验的仪器布置和试验方法，利用最小二乘法分析了桥的预应力摩阻损失参数，试验结果表明：相对传统的金属波纹管，塑料波纹管道具有较小的摩阻系数．为该桥的施工和设计提供了理论依据，为预应力钢束的预应力损失计算提供了参考．
|
| 关 键 词： | 预应力束 摩阻损失 最小二乘原理 塑料波纹管 |
Measurement and Analysis on the Attrition Loss of Prestress Wire of Plastic Corrugated Tube |
| |
| LI Chang-feng.Measurement and Analysis on the Attrition Loss of Prestress Wire of Plastic Corrugated Tube[J].Journal of Gansu Sciences,2009,21(2):38-40. |
| |
| Authors: | LI Chang-feng |
| |
| Institution: | LI Chang-feng(Construction Consultative and Supervisory Co.Ltd.,Lanzhou Jiaotong University,Lanzhou 730070,China) |
| |
| Abstract: | Taking the measurement of attrition loss of prestress wire of box girder of Longdong bridge in Yi-wan railway as an example, the layout of the instrument and the testing method for the attrition loss test were described in this paper. The parameters/z and k for describing the attrition loss were obtained according to the least square method. The results can provide a reference for the calculation of the attrition loss for the design and construction. The experimental results showed that the plastic corrugated pipe has smaller attrition loss parameters compared with those of steel corrugated tube. |
| |
| Keywords: | prestress wire attrition loss least square method plastic corrugated pipe |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
