Experimental Study on the Ultimate Strength of Steel Arches

Experimental Study on the Out-of-Plane Buckling Strength of Steel Arches With Open Cross Section

“…These facts mean that the ultimate strength of the through type arch bridges having unbraced portion are greatly affected by the slenderness ratio of the unbraced portion of arch rib, in other words, the effect of the braced length ratio , 9 is quite significant for the ultimate strength of twin arch models having unbraced portion. (8) Axial force of lateral bracing members Fig. 13 shows the relation between the load and the axial strain of the diagonal and the transverse members located at the end panel of laterally braced portion.…”

Out-of-plane stability of roller bent steel arches — An experimental investigation

“…The experiments were set-up to evaluate the difference between analytical solutions by Timoshenko and Gere [11] and Vlasov [12] on the one hand with those presented by Yoo [13] on the other. The lateral elastic-plastic buckling performance of braced and freestanding model arches made from welded hollow sections was investigated by Sakimoto et al [14]. A total of 12 circular and parabolic arches were subjected to different loading types.…”

“…It can be concluded that nearly all experiments were setup to verify calculation techniques, the older ones for hand calculations, the more recent ones by Sakimoto et al [14] Papangelis and Trahair [10] and Sakata and Sakimoto [15] for finite element analyses. Most experiments were carried out on model arches and were aimed at initiating elastic buckling.…”

“…Arches subjected to significant bending in addition to compression were investigated by Klöppel and Protte [6], Di Tomasso and Viola [9] and Papangelis and Trahair [10]. Sakimoto et al [14] and Sakata and Sakimoto [15]investigated circular arches with relatively low rise-to-span ratios subjected to uniformly distributed loading for which compressive action in the arch-rib is dominant and bending insignificant.…”

“…Elastic buckling occurs mainly in slender freestanding arches, but arches with intermediate slenderness or stocky arches will fail by elastic-plastic buckling. Only Kee [5], Sakimoto et al [14]. and Sakata and Sakimoto [15] reported on the elastic-plastic buckling response, although load-displacement graphs were not made available for all tests.…”