By spatial discretization model, the structural self-vibration property and the dynamic response of Yuanjiagang Station bridge on Chongqing straddle type monorail line was computed.
采用空间离散模型，计算重庆跨座式单轨交通线路袁家岗车站桥的结构自振特性及动力响应。
The vibration mechanical model of gantry and bridge crane is established by means of structural analysis.
通过对门桥式起重机的结构分析，建立了其振动力学模型。
The mechanic model analysis shows that this type of bridge possesses unique structural advantages and rational distribution of forces.
通过对其力学模型的分析，指出了此种桥梁结构的受力合理性，以及它在结构上独具的许多优点。
Three-dimension finite element model is built according to the actual structural characteristic of suspension pipe bridge.
按照悬索式管桥的实际结构特点，建立了三维有限元模型。
The dynamic behaviors of the model bridge are analyzed with FEM dynamic structural analysis program before and after the model bridge is damaged.
通过改变钢桁梁模型桥单元刚度模拟其结构损伤，利用有限元结构动力分析程序对该模型桥在”损伤”前后进行了结构动力分析。
Based on the measured modal data from prototype testing, the updated finite element model of the bridge has been significantly improved by modifying of uncertain structural parameters.
基于该桥现场测量的模态数据，修正后的有限元模型获得了较好的改善。
Based on the measured modal data from prototype testing, the updated finite element model of the bridge has been significantly improved by modifying of uncertain structural parameters.
基于该桥现场测量的模态数据，修正后的有限元模型获得了较好的改善。
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