桥梁荷载试验是当前桥梁结构试验中应用最广和最有效的手段,而其中自振频率和振型又是评价结构刚度及损伤情况的重要指标。采用磁电振动传感器对某公路桥第二联35m+50m+35m预应力混凝土连续箱梁的自振频率和振型进行测试,并将测试结果与模型计算结果进行对比验证。结果表明,该传感器测试结果与理论计算吻合良好。
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