吊杆式拱架结构静力特性研究

Static Features of Boom Contering Structure

以汤峪河渡槽为例，对新型吊杆式拱架结构的内力特性进行了全面分析。结果表明，该结构与下承式桁架拱比较，具有内力分布均匀且控制性内力显著减小，无需采用预应力措施，更便于采用分块吊装拼接工艺施工；是密实砂卵石基或岩基上修建大跨度渡槽的一种经济实用的新型模式。

Taking Tangyu River flume as an example,this paper gave a thorough analysis on the hypogene features of new boom contering structure.The results show that the new boom contering structure has resulted in an affine hypogene distribution and a significant reduction control hypogene without the consideration of the prestressed measure and is more convenient for construction by the lump suspension splice technique compared with the low truss arch.This structure costs less and is more practical in constructing a large span flume on rockhead and compact sandy gravel foundation.