摘要
为研究曲线连续梁桥中的不同参数对桥梁倾覆稳定性的影响,以高速公路上某匝道桥为工程背景,开展基于正交试验法的参数分析。建立匝道桥的有限元计算模型,并结合正交试验的方法,分析曲线半径、支座间距及桥梁纵坡对曲线梁桥抗倾覆能力的影响。结果表明,支座间距对桥梁倾覆影响最大,曲线半径次之,而桥梁纵坡对其的影响较小。
In order to study the influence of different parameters of curved continuous beam bridge on overturning stability of bridge,taking ramp bridge on super highway as engineering background,the parameter analysis based on orthogonal test method is carried out.Through the numerical simulation method,the finite element model of ramp bridge is established,and the influence of curve radius,support spacing and longitudinal slope of bridge on the overturning capacity of curved bridge is analyzed by orthogonal test.The results show that the span between supports has the greatest influence on the overturning of bridge,the radius of curve is the second factor,and the influence of longitudinal slope of bridge is less.
出处
《交通科技》
2018年第1期19-21,共3页
Transportation Science & Technology
基金
宁波市交通运输科技项目(201720)资助
关键词
桥梁工程
有限元
倾覆
正交试验法
bridge engineering
finite element
overturning
orthogonal experimental method
