CAJ | 학술논문

以某三跨铁路悬索桥为例，基于大型通用有限元软件 ANSYS，采用行波输入与多点激励两种非一致地震激励进行铁路悬索桥地震响应计算分析。研究获得大跨度悬索桥在非一致激励输入下响应变化规律，并通过分析桥梁各响应控制振型变化获得非一致激励对桥梁地震响应影响机理，从而揭示两种非一致激励考虑方式对桥梁响应影响的根本区别，为悬索桥非一致激励下地震响应计算分析提供重要参考依据。
이모삼과철로현색교위례，기우대형통용유한원연건 ANSYS，채용행파수입여다점격려량충비일치지진격려진행철로현색교지진향응계산분석。연구획득대과도현색교재비일치격려수입하향응변화규률，병통과분석교량각향응공제진형변화획득비일치격려대교량지진향응영향궤리，종이게시량충비일치격려고필방식대교량향응영향적근본구별，위현색교비일치격려하지진향응계산분석제공중요삼고의거。
Based on the general finite element software ANSYS,seismic responses under non-uniform excitations of a long-span railway suspension bridge were studied.Two different input methods,i.e.,traveling seismic wave excitation and multi-support excitation,were used to analyze the seismic responses of the bridge,and then the response regulations were discussed.Analysing the differences between the response control modes,the influence mechanisms of the non-uniform excitations were discussed,thus the fundamental differences between effects of the two input methods were revealed.The results can provide an important basis for the seismic analysis of suspension bridges.