| 宽弯桥变形及控制 |
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| 引用本文： | 张敬珍,徐岳,黄平明,郝宪武. 宽弯桥变形及控制[J]. 长安大学学报(自然科学版), 2003, 23(2): 64-66 |
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| 作者姓名： | 张敬珍 徐岳 黄平明 郝宪武 |
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| 作者单位： | 长安大学,公路学院,陕西,西安,710064 |
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| 摘 要： | 宽弯桥是近几年来立交桥上使用较多的一种桥型 ,精确的计算有待进一步研究 ,正确的施工控制工作对线形影响很大。对此类桥梁计算中单元的选取和计算模型的建立进行了探讨 ,同时通过试算进一步了解预设支座偏心引起的挠度变化 ,并对施工和设计提出一些建议。
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| 关 键 词： | 宽弯桥 挠度(变形) 预拱度 计算模型 恒载 |
| 文章编号： | 1671-8879(2003)02-0064-03 |
| 修稿时间： | 2002-06-18 |
Displacement control of wide-curved bridges |
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| ZHANG Jing-zhen,XU Yue,HUANG Ping-ming,HAO Xian-wu. Displacement control of wide-curved bridges[J]. JOurnal of Chang’an University:Natural Science Edition, 2003, 23(2): 64-66 |
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| Authors: | ZHANG Jing-zhen XU Yue HUANG Ping-ming HAO Xian-wu |
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| Abstract: | Wide-curved bridge is one type of bridges often used on interchanges for recent years. Further research on exact calculation is needed, and correct construction control affects linetype greatly. The method of selection of calculation unit and calculation model for this kind of bridge is discussed. The change of flexibility caused by eccentricity of presetting foundation will be further understood by test calculation,and some suggestions are put forward for construction and design. |
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| Keywords: | wide-curved bridge flexibility (deformation) pre-surround calculation model constant load |
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