利用特制传感器预警输电塔失稳的试验研究  

Experimental Research on Warning Transmission Tower Instability with Special Sensors

作　　者：杨晓军[1] 王德贺[2] 李小磊[3] 

机构地区：[1]东北电力大学后勤处,吉林吉林132012 [2]东北电力大学建筑工程学院,吉林吉林132012 [3]四川省电力公司泸州电业局,四川泸州646000

出　　处：《水电能源科学》2011年第11期175-177,共3页Water Resources and Power

摘　　要：针对输电线路中铁塔地基不均匀沉降造成的倒塔事故,基于传感器的受力特性,提出了利用应变式传感器传输铁塔主材的受力情况,并通过室内压力和拉力试验建立了传感器输出值与所加外荷载的关系式,以此来判断铁塔的失稳临界状态。结果表明,该方法及时、准确,可有效避免倒塔事故的发生。There are tower fall accidents in transmission lines caused by non-uniform settlement of the tower foundation. Based on the force characteristics of the sensor, the strain sensor is used to transmit the stress situation of transmission tower material. Then the relationship between sensor output values with the external load is obtained with indoor pressure and tensile tests. Finally, the instability critical state of transmission tower is determined. The results show that the method is effective and it can avoid tower fall accidents.

关 键 词：传感器 荷载 相关性 基础沉降 试验分析 

分 类 号：TM7[电气工程—电力系统及自动化]