锚喷技术加固补强旧危拱桥的模型试验及有限元分析

Model Tests and Finite Element Analysis of Dama6ed Arch Bridge as Reinforced by Shotcrete and Bolt

为了研究锚喷技术加固补强拱桥的机理,进行了4个混凝土拱模型的试验研究,并用经过特别处理的非线性有限元法对模型进行了分析。着重探讨拱的极限承载能力性质,附加的锚喷拱圈与原拱圈的粘结可靠性以及它们的相互作用。

This paper describes a research of the structural behavior of damaged concrete arch bridges reinforced by shotcrete and bolt. Comparative tests and finite element analysis of four concrete arch bridge models have been carried out emphasizing on interaction between the old arch and attached sbotcrete arch,reliablity of the bondness between the two arches as well as the increment of loading capacity due to the attached arch.