Sensitivity Analysis for Design Parameters of Cantilever Casting PC Box-Girder with Corrugated Steel Webs
In order to provide a theoretical basis for the alignment regulation of prestressed box-girder bridge with corrugated webs,so that the control for alignment can be more targeted.Optimization model of alignment regulation for cantilever constructed pre-stressed box-girder bridge with corrugated webs is proposed based on optimization principle.The sensitivity of alignment error,transverse stress of bottom plate and transverse deformation of corrugated web with respect to design parameters is analyzed during three classical construction stages.The results indicate that the concrete density,concrete elastic modulus,longitudinal and transverse pre-stress are key control parameters of alignment regulation; alignment error is not sensitive to the change of uniformly distributed temporary loads; the cantilever state at one fourth span is most sensitive to the change of design parameters.
Corrugated steel webs Sensitivity analysis Box-girder Construction regulation
Ke Bin Jiang Yong Ding Ya Wen Liu Ping Wang Feng Zheng
Engineer Institute of Engineering Corps, PLA Univ.of Sci.&Tech., Nanjing 210007, China Jiangsu Provincial Transportation Engineering Group Co., LTD., Zhenjiang 212003, China
国际会议
厦门
英文
1546-1550
2012-01-04（万方平台首次上网日期，不代表论文的发表时间）