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采用FRP板的桥日渐普及,需要掌握FRP板桥的性能。FRP板桥的性质(如质量、刚度)与传统的混凝土板桥明显不同。因此,在目前的研究中采用详细的有限元分析方法来研究FRP板桥的荷载分布及其动力响应。基于三维轮载-桥耦合模型,研究了钢和多跨混凝土桥中桥梁与轮载的相互作用。考虑时域内板的粗糙度对交通产生的竖向作用,得到了桥的动力响应。比较了FRP板桥与混凝土板桥的荷载分布与动力响应。此外,尚存在一些争论,如是否研究板和梁的共同作用,对FRP板桥是否采用简单的非组合设计。建模时采用全组合和部分组合的FRP板桥对这些问题进行了讨论。
FRP bridge with the growing popularity of the bridge, the need to grasp the performance of FRP Itabashi. The properties (such as mass and stiffness) of the FRP slab differ significantly from those of the traditional concrete slab. Therefore, in the present study, a detailed finite element analysis method is used to study the load distribution and dynamic response of FRP slab bridges. Based on the three-dimensional wheel-to-bridge coupling model, the interaction between bridge and wheelsets in steel and multi-span concrete bridges is studied. Considering the vertical effect of the roughness on the traffic in the time domain, the dynamic response of the bridge is obtained. The load distribution and dynamic response of FRP bridge and concrete slab bridge are compared. In addition, there are still some controversies, such as whether the research board and the joint role of the beam, FRP Itabashi whether to adopt a simple non-combination design. These questions are discussed in the modeling with all-in-one and partially combined FRP slab.