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| 1 000 m级CFRP索斜拉桥静力特性分析 | |
| 引用本文： | 梅葵花. 1 000 m级CFRP索斜拉桥静力特性分析[J]. 世界桥梁, 2007, 0(4): 47-50 |
| 作者姓名： | 梅葵花 |
| 作者单位： | 长安大学桥梁与隧道陕西省重点实验室,陕西,西安,710064;东南大学土木工程学院,江苏,南京,210096 |
| 基金项目： | 国家自然科学基金项目(50178018) |
| 摘 要： | 通过具体算例采用有限元法分析CFRP索斜拉桥的各非线性因素的影响量,并与钢索斜拉桥进行对比。鉴于CFRP的线膨胀系数远小于钢材或混凝土的线膨胀系数,计算了4种不同结构体系的CFRP索斜拉桥和钢索斜拉桥在温度荷载下的静力反应,计算结果表明CFRP索斜拉桥相对于钢索斜拉桥在静力方面具有较多优势。 |
| 关 键 词： | 斜拉桥 有限元法 CFRP 几何非线性 温度效应 |
| 文章编号： | 1671-7767（2007）04-0047-04 |
| 收稿时间： | 2006-08-11 |
| 修稿时间： | 2006-08-11 |
Analysis of Static Behavior of Cable-Stayed Bridge Used with CFRP Cables and with Span Length Greater than 1 000 Meters |
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| MEI Kui-hua. Analysis of Static Behavior of Cable-Stayed Bridge Used with CFRP Cables and with Span Length Greater than 1 000 Meters[J]. World Bridges, 2007, 0(4): 47-50 | |
| Authors: | MEI Kui-hua |
| Abstract: | Based on the given calculation examples,the finite element method is used to analyze the influence quantity of various nonlinear factors of cable-stayed bridge used with CFRP(carbon fiber reinforced plastic) cables and the analysis of the influence quantity is compared to that of the cable-stayed bridge used with steel cables.In consideration that the linear expansion coefficients of the CFRP are far less than those of the steel and concrete,the static force responses of four kinds of cable-stayed bridges of different structural systems respectively used with the CRFP and steel cables under temperature load are calculated.The results of calculation indicate that in aspect of the static force,the cable-stayed bridge used with the CFRP cables has more advantages than those of the bridge used with the steel cables. |
| Keywords: | cable-stayed bridge finite element method carbon fiber reinforced plastic geometric nonlinearity temperature effect |
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