【摘要】 针对复杂桥梁健康监测系统中多目标的动力分析问题,基于实体退化单元,推导了整体尺度和细节尺度混合建模的计算公式。研究表明:多尺度法可同时满足整体振动特性和局部动力响应的分析要求,计算精度和效率兼得,且工程适用性好,能在健康监测系统中在线完成安全评估。更多还原

【Abstract】 For multi-objective dynamics analysis of complex bridge health monitoring,Based on t degenerated solid elements,the formula was deduced for dual modeling with whole scale and local scale.The result shows the whole vibration property and local dynamic response can be fast and exactly calculated with one FE model by the multiple-scale method.It has a good applicability for actual bridge and can be used for online safety assessment.更多还原