中英
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- The higher modes have shorter periods than the fundamental mode and, moreover, they have higher velocities .
高振型波比基阶振型波周期短，波速高。 - Further using the phase - match for each seismograms , the fundamental - mode surface wave was separated
再通过相匹配滤波方法进行rayleigh面波基阶分离，得到基阶面波记录。 - Aero - elastic model tests have a long test period and cost much , high frequency force balance technique can only consider the foundational vibration type of the structure and it must be assumed as linear . because this technique can not get the average wind loads on each floor of the building , it can not give the equivalent design loads of structures
在现行的风洞试验技术中，气动弹性模型试验模型制作复杂、试验周期长、费用高，而高频底座天平试验则只能考虑结构的基阶振型并假定其为线性，且由于只能测得基底倾覆弯矩，无法测量各层的平均风荷载，故而无法确定结构各层的等效设计荷载。
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Last modified time:Sat, 16 Aug 2025 00:29:56 GMT
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