Taking the simply-supported-continuous bridge with hollow slab beam seamless bridge as the background, the paper specifically intro- duces the design concept of seamless bridge and the up-down structural joint structure, which has provided reference for the design of similar bridge and laid a foundation for the promotion of seamless bridge.%以一座先简支后连续空心板梁无缝桥梁为依托,详细介绍了无缝桥梁的设计思路以及上下部结构连接节点构造,为该类桥梁的设计提供了借鉴意义,为无缝桥梁的推广应用奠定了基础。
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