Analysis of Influencing Factors on Load Transfer Capacity of Doweled Joint in Cement Concrete Pavement
A high accuracy three-dimensional model of doweled joint in airport pavement was estab-lished.The single-factor rotation method was used to analyze the various influencing factor on load transfer capacity of pavement joints.The results showed that the LTE(load transfer efficiency)is pos-itively correlated with dowel bar diameter and the modulus of the slab and base.Conversely,there is a negative correlation with foundation reaction modulus,slab thickness,and dowel bar spacing.For further research on comprehensive effect of multiple factors on load transfer capacity,variance analy-sis on test data were used.The results showed that the degree of influence on joint load transfer ca-pacity in descending order is as follows:foundation reaction modulus,slab thickness,dowel bar spac-ing,dowel bar diameter,and friction coefficient between dowel and concrete,while other factors have no significant influence on load transfer capacity.
finite element modelload transfer capacityinfluencing factorsorthogonal testvariance analysis
万方数据
维普
