The utility model discloses an anemometer bracket for wind speed monitoring of truss bridges, which is equipped with a hoop holding device; the hoop hollow cylinder is fused and fixed with an ear plate; the hoop hollow cylinder is connected with a fixed vertical rod through a node plate; the fixed vertical rod is reserved with a through-hole connecting steel cable; the other end of the steel cable is connected with a cantilever bar clamp ring with a through-hole; the hoop hollow cylinder is fused and fixed with an ear plate; The hollow cylinder ear plate is connected with the fixed end ear plate of the cantilever bar through a pin shaft and a copper cushion plate. The utility model aims at increasing the cantilever length of the anemometer bracket and keeping it as far away from the main girder as possible, thereby reducing the signal noise caused by vehicle load impact and the interference of the main girder on wind speed measurement; at the same time, it saves the cost in the design of the structure itself and reduces the weight of the bracket, thereby minimizing the shadow of the auxiliary facilities of the bridge health monitoring system (SHM) on the structural characteristics of the whole bridge itself. The noise also eliminates the interference of the anemometer bracket itself to the wind speed measurement.
【技术实现步骤摘要】
一种用于桁架桥风速监测的风速仪支架
本专利技术涉及大跨径桥梁运营阶段健康监测技术(SHM)领域,具体涉及到一种用于桁架桥风速监测的风速仪支架。
技术介绍
目前,业内常用的现有技术是这样的:现今,我国正在大规模修建大跨径桥梁,这类桥梁结构形式以悬索桥、斜拉桥构型为主,普遍具有柔性大、易受到自然的作用而发生不利振动等特点。同时,这些大跨度桥梁往往建造在山区等特殊地形地貌区域,自然风特性复杂,因此需要在桥梁健康监测系统中加入对桥梁来流自然风的测量。风特性的相关资料主要来自于气象站,虽然这些气象资料为桥梁风工程研究提供了宝贵的参考,然而风速的大小、风向的变化受到山区地形地貌等不同复杂因素的影响,随机性非常强;同时,气象站不会恰好和桥梁所在的地址一致,这就使得我们所采用的来自远离桥址处气象站的实测风特性资料与桥梁实际所在地的风速特性有很大差别。因此,为了确保各座大跨径桥梁的运营安全和耐久性,需对各座大桥的风场特征进行实时监测,为大桥的交通运营安全预警提供风力与风速数据的指示参考,确保桥梁运营安全。桥梁健康监测系统(SHM)为实现上述目的,通常在主梁外侧安置风速仪。然而,建在山区的桥梁多数为桁架主梁,其在设计时以桥梁自身受力考虑,而无法兼顾在其上安装风速仪,因此无法设计固定风速仪的装置和构件,从而无法在桁架主梁上安装风速仪。为了解决这个风速测量问题,当前的桥梁健康监测系统(SHM)目前常用的风速仪安置方式主要有两种:1、直接将风速仪安装在主梁边缘的竖直杆件上(如护栏或架设的竖直长杆),这种方式有重要缺陷:车辆荷载对桥面系正交异形板的冲击作用以及车辆过桥对其周围流场的扰 ...
【技术保护点】
1.一种用于桁架桥风速监测的风速仪支架,其特征在于,所述的用于桁架桥风速监测的风速仪支架设置有:抱箍装置;抱箍空心筒熔接固定有耳板,抱箍空心筒通过节点板与固定竖杆连接,固定竖杆预留有通孔连接钢丝拉绳,钢丝拉绳另一端与预留有通孔的悬臂杆卡环连接。
【技术特征摘要】
1.一种用于桁架桥风速监测的风速仪支架,其特征在于,所述的用于桁架桥风速监测的风速仪支架设置有:抱箍装置;抱箍空心筒熔接固定有耳板,抱箍空心筒通过节点板与固定竖杆连接,固定竖杆预留有通孔连接钢丝拉绳,钢丝拉绳另一端与预留有通孔的悬臂杆卡环连接。2.如权利要求1所述的用于桁架桥风速监测的风速仪支架,其特征在于,所述抱箍空心筒熔接固定有耳板,空心筒耳板通过销轴...
【专利技术属性】
技术研发人员:王骑,罗凌峰,马存明,单德山,裴城,何淼,
申请(专利权)人:西南交通大学,
类型:新型
国别省市:四川,51
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