TECHNICAL INSPECTION AND APPRAISAL OF A CONCRETE-FILLED STEEL TUBULAR ARCH BRIDGE
Keyword：Concrete-Filled Steel Tube, Arch Bridge, Appearance, Detection, Assessment Code
Abstract：An inspection for a CFST arch bridge has been carried out, including general appearance inspection and in-situ water quality investigation. Two criteria, Technical Code of Maintenance for City Bridge (CJJ 99-2003) and Technical Code of Maintenance for Highway Bridge and Culverts (JTG H11-2004) are applied to appraise the technique condition of the bridge. The appraisal results show that the bridge is in Grade D and Third level respectively, which means that the bridge needs a general repair. It is found from the appraisal that the two aforesaid codes have limitation in this process because there is no special items for CFST arch bridges in them. Although the appraisal results by the two codes are similar, however, the assessment index and the weight factor of superstructure, substructure and deck system by these two codes are difference. The consistency of these two codes needs check by more appraisals of other bridges.