港口道路堆场水泥混凝土铺面荷载应力计算

Loading Stresses Calculation for Road and Terminal Concrete Pavement of Port Areas

针对港口道路、堆场水泥混凝土铺面结构的荷载应力计算问题,将其上作用的流动机械荷载、集装箱荷载简化为单轮(单箱脚)荷载、单轴(单列箱)荷载和多轴(多列箱)荷载等图式,采用不等平面尺寸双层板力学模型,提出了港口道路、堆场水泥混凝土铺面面板和基层荷载应力计算的一般式,分析了旁侧轮、旁侧轴、单列及多列箱、板平面尺寸、基层超宽以及接缝传荷等因素对面板和基层荷载应力的影响规律,比较了有限元结果和公式荷载应力的一致性和精度,结果可用于港口道路、堆场水泥混凝土铺面结构荷载应力估算.

As per the problem of loading stresses calculation for road and terminal concrete pavement of port areas under moving vehicle loads and container loads, the configurations of moving vehicle loads and container loads are simplified as single wheel （single container leg） load, single-axle single- wheel （two container legs） load as well as multiple-axle single-wheel （four container legs） load. An unequal planar dimension double-layered pavement model is adopted, and a set of general loading stress formulas for road and terminal concrete pavement of port areas are put forward. The influences of the side wheel load, adjacent axle load, two and four container legs load, planar size of concrete pavement slab and base extension as well as joint load transfer capacity etc.on the loading stresses in concrete pavement slab and base are thoroughly analyzed. At last, a comparison of results based on the finite element method and obtained with formulas is made to verify the agreement and precision of loading stresses, therefore, the research resultants can be used for the loading stress calculation for road and terminal concrete pavement of port areas under moving vehicle loads and container leg loads.