桁式组合拱桥的新拱脚支撑着中部桁架拱，新拱脚结点构造和受力复杂。

The new arch spring of composite truss arch bridge is used to support the middle truss arch of the bridge and the structural formation and force conditions of the joint of the spring are complicated.

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圬工拱桥具有就地取材、节省钢筋和水泥、构造简单、有利于普及、承载潜力大、费用少等优点，在我国修建的比较多。

With the merits of full use of the materials, saving steel bar and the cement, structure simple, big bearing potential, and costs few, the masonry arch-bridge is widely used in China.

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在分析汴京虹桥的基础上，将叠梁拱桥扩充到钢筋混凝土结构和钢管结构，并结合实例进一步对单孔叠梁拱桥的构造、设计、计算和施工作了研。

The reinforced concrete structure and steel tubular structure are included into the laminated beam arch bridges on the basis of analysis of Bianjing Rainbow Bridge.

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