Based on the pavement performance data of certain test highway and combined with the solver of Microsoft Office Excel sheet,the exponential regression equation of pavement performance index curve is established;and the matrix of status transition probability is calculated through the fitting exponential regression equation.Then according to the known probability distribution of initial pavement status,the probability distribution of pavement performance at certain time could be obtained for the final purpose of prediction of pavement performance at this time.It is known through analysis that the Markov Model could be establish conveniently with Microsoft Office Excel sheet and operated simply;moreover,it is capable of prediction of pavement performance well and has good application prospect in practical engineering.

碗扣式满堂支架法是桥梁上部施工中较常见的一种施工方法,具有拼装快、不易丢失零件、运输方便、施工时间短等优点。支架的承载力与稳定性对于桥梁的安全施工相当重要,因此,在桥梁施工前对满堂支架强度和稳定性进行验算是十分必要的。本文针对深圳市西乡互通主线桥第25联现浇连续箱梁满堂支架进行全过程监测,结合桥梁分析设计软件Midas对支架进行了建模计算,总结出一些实践经验,供相关技术人员参考。