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采用基于最大位移时能量相等原理 ,首次建立了振动过程中等效线性化法的弹性模量修正公式进行实用分析 .以受拉二力杆单元取代索的单元的准线性结构采用试算法计算出结构横风向共振的临界风速 ,并与原含索非线性结构用ANSYS程序进行时程分析的数值结果进行了比较 .结果表明 ,采用以模量修正的受拉二力杆单元取代索单元的准线性结构精度良好 ,试算临界风速时的工作量显著减少 ,为类似问题提供参考 .
Based on the principle of energy equalization based on the maximum displacement, the elastic modulus correction formula of the equivalent linearization method was established for the first time for practical analysis.The structure of the quasi-linear structure of the unit replacing the cable with tension rod unit was calculated by trial calculation And the critical wind speed of transverse wind direction resonance is compared with the numerical results of the time history analysis of ANSYS program with nonlinear structure. The results show that the quasi-linearity of cable element The structure accuracy is good, and the workload on trial of critical wind speed is significantly reduced, providing reference for similar problems.