| 宽体板拱桥空间受力分析 |
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| 引用本文： | 张增亚,曾德荣,王雷.宽体板拱桥空间受力分析[J].重庆交通大学学报(自然科学版),2006,25(Z1):1-3. |
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| 作者姓名： | 张增亚 曾德荣 王雷 |
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| 作者单位： | 1. 攀枝花市交通设计研究院,四川,攀枝花,617000
2. 重庆交通大学,土木建筑学院,重庆,400074 |
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| 摘 要： | 当板拱桥的宽度与跨度接近,甚至其宽度大于跨度,这类板拱桥称为宽体板拱桥.这类桥梁现有的杆系结构设计理论存在问题.按《公路桥涵设计通用规范(JTG D60-2004)》,以实腹式宽体板拱桥为例,利用M IDAS/C ivil建立空间有限元分析模型,进行影响面计算,分析了应力最不利位置以及其值的加载计算,将计算结果与平面杆系有限元简化分析模型的计算结果进行比较.指出二者分析结果的相同的和不同的方面,为该类桥梁的设计、病害分析提供理论基础.
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| 关 键 词： | 宽桥 板拱桥 空间受力分析 有限元 |
| 文章编号： | 1001-716X(2006)S1-0001-03 |
| 修稿时间： | 2006年6月7日 |
Study of super-wide slab arch bridge by three deminsion body |
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| ZHANG Zeng-ya,ZENG De-rong,WANG Lei.Study of super-wide slab arch bridge by three deminsion body[J].Journal of Chongqing Jiaotong University,2006,25(Z1):1-3. |
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| Authors: | ZHANG Zeng-ya ZENG De-rong WANG Lei |
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| Abstract: | When the width is very close to or much greater than the span of slab arch bridge,it is called Super-wide Slab Arch Bridge.Its problems according to beam theory are presented and a space FEM model is established by MIDAS/Civil software.The influence surface and live load application are computed with MIDAS software according to 《road and bridge design general standard(JTG D60-2004)》,and the computing result is compared with that of simplified model of FEM plane frame.Its conclusion maybe become the basis of design and disease anlysis of Super-wide Slab Arch Bridge. |
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| Keywords: | super-wide bridge slab arch bridge spatial analysis FEM |
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