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通过对改建后的教学主楼的振动测试 ,得出了其现在主楼部分的南北弯曲振动的一阶固有频率 ,并且与改建前主楼的动力特性参数相比较 ,从而得出改建后结构性能的变化 ,这对于现今大批的改建、扩建工程具有一定的参考价值
Through the vibration test of the reformed main building, the first natural frequency of the north-south bending vibration of the main building now is obtained and compared with the dynamic characteristic parameters of the main building before rebuilding to get the change of the structural performance after rebuilding. This has a certain reference value for a large number of reconstruction and expansion projects