| 斜拉桥桥塔的驰振响应分析 |
| |
| 引用本文： | 顾明,项海帆.斜拉桥桥塔的驰振响应分析[J].空气动力学学报,1991(4). |
| |
| 作者姓名： | 顾明 项海帆 |
| |
| 作者单位： | 同济大学
(顾明)，同济大学(项海帆) |
| |
| 摘 要： | 本文分析了一座拟修建的斛拉桥桥塔的驰振特性。用一种直接测量方法,在风洞中测量了该塔原模型及修改模型的气动力;推导了分段变截面的桥塔在边界层风场中的驰振响应公式,讨论了临界风速,得到了一些有意义的结果。本文方法及程序可用于一般工程实际。
|
| 关 键 词： | 斜拉桥桥塔 驰振 边界层风场 |
GALLOPING RESPONSES OF CABLE-STAYED BRIDGE PYLONS |
| |
| Gu Ming Xiang Haifan.GALLOPING RESPONSES OF CABLE-STAYED BRIDGE PYLONS[J].Acta Aerodynamica Sinica,1991(4). |
| |
| Authors: | Gu Ming Xiang Haifan |
| |
| Institution: | Tongji University |
| |
| Abstract: | In this paper, coefficients of fluctuatind and steady forces of a section model and two modified models of a proposed cable-stayed bridge pylon are obtained by using a new measurng method in wind tunnel. A formula is derived for calculating galloping responses of cable-stayed bridge pylons with variable-cross section in boundary layer wind field. A detailed discussion about galloping critical wind speed is made and some meaningful results are obtained. A calculation of galloping response of the proposed bridge pylon is performed as a example. |
| |
| Keywords: | cable-stayed bridge pylon galloping boundary layer wind field |
| 本文献已被 CNKI 等数据库收录！ |
