【摘要】 首先根据荷载横向分布影响线,定义出评价指标,并确定检验截面和加载方案,进而形成一套装配式简支板桥上部结构整体性的评价方法;然后将以我国高速公路加宽改造过程中,常用的几种典型的装配式简支空心板桥为研究对象,根据整体性的评价方法,研究横向粘钢加固措施中各要素对上部结构整体性的影响情况,进而提出几种典型跨径装配式简支空心板桥横向粘钢加固的最优方案;最后,将依据几座装配式板桥的试验资料,验证该方法应用于既有装配式简支板桥整体性评价的可行性。该项研究明确了装配式简支板桥上部结构整体性的评价方法,为空心板桥整体性评定、增强横向连系措施加固效果评价和加固方案择优提供了理论基础。更多还原

【Abstract】 Based on the influencing line of load transverse distribution,the evaluation method of the entirety of superstructure was formed including the evaluating parameters,the loading program and the test section.The optimal strengthening measure of transversal bond-steel was suggested for the superstructure of typical assembled simply-supported hollow slab bridge in the reconstruction and extension projects of expressways,which was verified by the test results of some typical PPCHSB.It was proved that the evaluation method can be used for the entirety evaluation of the superstructure of the assembled simply-supported hollow slab bridge and the strengthening transverse linked with higher sensitivity and reliability.更多还原