Abstract: The replacement of common concrete by steel fiber reino forced concrete(SFRC)in the building o lighter andstronger archea has proved to be valid in practice.This article,by according to the analysis of the finite element method,and the comparison of the test results between experimental models and the newly-built testing bridge,testifies that theSFRC arch bridge has an overall advantage to the common concrete arch bridge in its properties when subjected to impactloadings,forced vibrations and other ultimate loadings like seismic ones.

Key words: SFRC arch bridge, ultimate loadings, structural properties

摘要： 利用钢纤维混凝土（简称SFRC）取代普通砼可以建造轻型高强的拱桥已经为实践所证明．本文通过模型试验、实验桥测试结果与有限元计算结果的分析比较，充分说明SFRC拱桥在冲击荷载、强迫振动及地震等灾害性荷载作用下具有良好的结构性能．

关键词: 钢纤维混凝土, 灾害性荷载, 结构性能