1Nakai H, Kitada T, et al. Preposition of methods for checking the ultimate strength of arch ribs in steel Nielsen-Lohse bridges, Stahlbau 64,1995(5): 129-137
2Laurent Ney, Vincent de Ville de Goyet, René Maquoi. Optimum bracing of the arches of tied-arch bridges. Journal of construction steel research, 1991(18) :239-249.