胥虹桥上部结构计算分析

Analysis of The Xuhong Bridge Superstructure

胥虹桥为二孔刚架拱桥，主孔净跨为６０ｍ，全桥长度为１５５．９８ｍ。该桥于１９９２年６月建成，从竣工后延续至今，相继出现桥面裂缝、拱肋开裂、墩台变位、桥面下沉等等病害。本文着重分析该桥病害发生的上部结构的原因。

Xuhong bridge is a three span rigid frame arch bridge with a main span of 60m.The bridge deck width is 24. 60m and the total length is 155. 98m. From its completion in 1992. 6. up to now many defects developed in the bridge such as the cracks in the deck and in the arch ribs, the displacement of piers and abutments and the settlement of the deck,etc. This paper emphatically analyzes the causes of deficiencies due to inadequacies in the design and construction of super structure of the bridge.