塔式起重机应变测试中的误差分析及修正方法

Analysis and Amending Method of the Errors in Stress Test of a Tower Crane

通过对塔式起重机应变测试中产生误差的原因进行分析,指出长导线电阻、应变片粘贴方位和温度的变化是产生误差的主要原因,提出了相应的修正和减小误差的方法。

Through the analysis of the errors in stress test of tower crane, the paper points out the main causes of the errors lie in the wire resistance, the sticking position of strain pieces and the change of temperature, thereby putting forward some measures to amend and reduce the errors.