摘要
依据建立的斜拉桥安全性评估模型和安全性评估方法及原理,基于矩阵实验室(Matlab)编制了大跨度斜拉桥安全性评估算法,对索力、线形、自振频率等进行了评估。计算结果表明,随着均衡系数"的减小,桥梁构件评估结果是一个加速退化的过程;变权模式作用下的变权权重越发散,评估结果的退化过程越剧烈,均衡系数-评分(Alfa-Grade)曲线曲率越大。
According to a model for cable-stayed bridge safety assessment and the way and the principle thereof, the large span cable-stayed bridge safety assessment algorithm is programmed through Matlab (matrix lab), and the safety condition is calculated. Results show that with the decrease of the balance coefficient α, the assessment result is a process of degradation; the more divergent variable weight is, the more severe the degradation of the bridge component assessment and the larger the curvature of Alfa-Grade curve.
出处
《中国市政工程》
2006年第1期22-25,共4页
China Municipal Engineering
关键词
斜拉桥
大跨度
安全性
评估
变权综合
斜率关联度
均衡系数
cable-stayed bridge
large span
safety
assessment
variable weight synthesis
correlation of slope coefficient
balance coefficient
