LOAD CARRYING CAPACITIES OF A BRIDGE EVALUATED BY DIFFERENT METHODS
The evaluation of load carrying capacity is an important part of quantifying the condition of a bridge. In this paper, the load carrying capacity of a 30 years old bridge is estimated with three methods, namely, the empirical formula given in the design code, a nonlinear finite element (NFEM) analysis method based on design drawings and a nonlinear finite element analysis method combined with the model updating methodology, which predicts the properties of the bridge in the present condition. The load carrying capacities and failure modes obtained from different methods are discussed. The results show the load carrying capacity calculated from the NFEM in design condition is 20％ larger than the empirical formula result. When the deterioration and damage in the bridge is considered, the load carrying capacity decreases 12％, but the bridge still can carry the modern traffic loads.
Li-Na Ding Hong Hao Andrew J Deeks
School of civil and resource engineering, the University of Western Australia, Perth, Western Australia 6009, Australia
国际会议
长沙
英文
677-683
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）