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旨在运用等效荷载法对消能减震结构动力平衡方程进行振型分解迭代求解.详细介绍了等效荷载法的迭代求解过程,该方法可结合振型分解法或数值积分法求解消能减震结构的动力平衡方程,且具有快速迭代的优点.运用振型分解法推导出经消能构件修正后的消能减震结构动力平衡方程的求解公式,并运用Fortran语言编制计算程序以实现上述求解过程.运用所编程序与有限元程序SAP2000(模态叠加法)对同一工程算例进行分析,二者计算结果基本一致,从而验证了本文所提出的等效荷载法的可行性,该方法具有良好的求解效率与计算精度,所推导的计算公式与所编程序是正确的.
The purpose of this paper is to use the equivalent load method to iteratively solve the vibration mode decomposition of dynamic balance equations of energy dissipation structures.The iterative solution process of equivalent load method is introduced in detail.The method can be used to solve the energy dissipation by vibration mode decomposition or numerical integration Dynamic balance equation of damping structure and has the advantages of fast iteration.The vibration energy decomposition method is used to deduce the solving formula of dynamic balance equation of energy dissipation structure after energy dissipation and the calculation program is compiled by Fortran language The above process is solved by using the program and finite element program SAP2000 (modal superposition method) to analyze the same project example, the calculation results are basically the same, which verifies the feasibility of the equivalent load method proposed in this paper The method has a good solution efficiency and calculation accuracy, and the derivation of the formula and programming is correct.