节点文献
曲线桥抗震精细传递矩阵法
Precise transfer matrix method for seismic of the curved bridge
【摘要】 根据曲线梁桥在竖直方向的弯扭耦合和水平方向的弯曲、轴向变形,导出了曲线梁单元竖直方向和水平方向的精细传递矩阵;给出了用精细传递矩阵法计算曲线梁桥竖直方向和水平方向的振动频率、振型、地震内力和变形的计算公式和步骤,并运用精细传递矩阵法对单跨简支桥进行了地震反应分析.算例表明,本方法简单、具有较高精度和效率.
【Abstract】 Considering the curved bridge’ coupling of the bending and torsion in the vertical direction,as well as the bending and axial deformation in the horizontal direction,the precise transfer matrixs of the beam elements are derived in the vertical and horizontal directions.The formulation and steps are present for calculating the horizontal and vertical vibration frequencies,vibration modes,seismic force and the deformation by the precise transfer matrix method.It has been applied to do the research the earthquake response of single-span curved bridge.The example shows that this method is simple,effective and of high precision.
【Key words】 curved bridge; coupling of the bending and torsion; seismic calculating; transfer matrix;
- 【文献出处】 西安建筑科技大学学报(自然科学版) ,Journal of Xi’an University of Architecture & Technology(Natural Science Edition) , 编辑部邮箱 ,2009年03期
- 【分类号】U442.55
- 【被引频次】2
- 【下载频次】121