基于近年来我国高速铁路大跨度斜拉桥动力性能测试实践和试验数据,探讨大跨度斜拉桥运营性能检定技术,提出了高速铁路大跨度斜拉桥运营性能评定的主要技术参数.对于主跨跨度在430～630 m范围内的大跨度斜拉桥,给出了梁体1阶竖向、横向自振频率参考值与跨度及主桁宽度的关系式,提出了采用1/800作为主跨竖向挠跨比参考值,建议考虑设计活载的差别,梁端竖向转角的参考值采用1.0‰或1.5‰,给出了不同检定参数的测试方法建议.我国高速铁路大跨度斜拉桥运营性能试验数据仍需要进一步积累和分析总结,以形成适合于我国高速铁路大跨度斜拉桥运营性能评估标准.%Technology on rating for operation performance of high-speed railway long span cable-stayed bridge was discussed based on the dynamic performance test practice and measured data of long span cable-stayed bridges used in high-speed railways in China in recent years.The main technical parameters to evaluate the op-eration performance of long span cable-stayed bridges of high-speed railways were proposed.For the long span cable-stayed bridge with the main span 430-630 m,a formula between the 1st vertical and lateral natural vibra-tion frequency reference value of the beam with main truss span and width was proposed.The ratio 1/800 was advised as the reference value of main span ratio of deflection to span.The reference value of 1 .0‰ or 1 .5‰ was recommended for the vertical rotation angle at girder end in line with the difference of the bridge design live load.Suggestions on the test method of different rating parameters are proposed.Further accumulation and a-nalysis are required on the measured data of the operation performance of long span cable-stayed bridge used in high-speed railways in China,so that the evaluation code for operation performance of long span cable-stayed bridge used in high-speed railways in China may be drafted.
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