具有悬挂缆索的桥梁挠度测量装置及方法

发布时间：2018-05-24 21:40

本文选题：桥梁检测 + 挠度　；参考：《公路》2017年01期

【摘要】：桥梁的挠度是反映结构物承载力大小的关键指标,也是其运营健康状态的重要参数。现有的测量方法和装置都有各自的缺点和局限性,不能同时拥有精准性、高效性、便携性和适应性。为解决这些问题,提出了一种新的挠度测量装置及方法,即具有悬挂缆索的桥梁挠度测量装置及方法。该方法通过架设主缆快速便捷搭设千分表所需的支撑物,并在桥面上设置纵向测点。配重块和限位导杆的存在也使得缆索结构避免了水平扰动,进一步保证了结果的稳定性。轻盈简单的结构使其可适应复杂的环境条件,较小的占地面积又可适应短期测量和长期监测。此方法已成功应用于某座桥梁的检测中,测量结果表明,此方法可以获得精确的测量结果,真实反映挠度变化,是一种高效、精准的测量方法。
[Abstract]:The deflection of the bridge is the key index to reflect the bearing capacity of the structure and the important parameter of its operation health. The existing measurement methods and devices have their own shortcomings and limitations, and cannot simultaneously have accuracy, efficiency, portability and adaptability. In order to solve these problems, a new deflection measuring device and method, that is, bridge deflection measuring device with suspension cable, is proposed. In this method, the support needed for setting up the meter is set up quickly and conveniently by erecting the main cable, and the longitudinal measuring points are set on the deck of the bridge. The presence of the weight distribution block and the limit guide bar also avoids the horizontal disturbance of the cable structure and further ensures the stability of the results. The light and simple structure allows it to adapt to complex environmental conditions, and the smaller area can be used for short-term measurement and long-term monitoring. This method has been successfully applied to the detection of a certain bridge. The measurement results show that the method can obtain accurate measurement results and reflect the deflection change. It is an efficient and accurate measurement method.
【作者单位】：长安大学公路学院;加州大学圣地亚哥分校结构工程系;
【分类号】：U446.2

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