【摘要】 文章以某码头进港大门网架结构为研究对象,建立空间计算模型,并应用通用结构有限元分析程序进行该网架的自振特性及谱响应分析。结果表明,结构的自振以整体振型为主;结构的地震响应沿平面对称;结构在地震作用沿Y轴方向输入时的响应最大;网架的支座处及网架边缘处最薄弱。更多还原

【Abstract】 The article takes the network structure of a pier gate into the port as the research object to build a spatial calculation model,and uses the general structure of finite element analysis program for natural vibration characteristics and spectral response analysis of the grid.The result shows that the natural vibration of the structure is mainly about the overall vibration modes;the seismic response of structure is symmetry along the plane; when inputting along the Y axis,the seismic structure gets the maximum response;the bearing and the edge of grid are the most weak.更多还原