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本文介绍在200吨压力试验机上进行的模拟桥梁桁架用杆件焊后冷作矫形试验,采用应变片法测量了应变分布规律和最大应变量。文中还介绍了试验设备及测试方法,采用应变片“接力”及增加补偿片阻值的方法测量超出应变仪量程的应变值。
This paper introduces the cold orthopedic test of simulating bridge truss rod after 200-ton pressure testing machine, and the strain distribution law and the maximum strain amount are measured by strain gage method. The article also introduced the test equipment and test methods, the use of strain gauge “relay” and increase the value of compensation sheet resistance strain gauge strain gauge measurement beyond the value.