Fixed‐End Restraint Effect on Steel Arch Strength

Evaluation of Stability Strength for Deck-Type Steel Arch Bridges

“…3The effect of local member buckling in a panel on the ultimate strenght of the deck type arch bridge structures is examined for a widely various range of structural parameters. (4) A practical prediction formula for the reduction factor is proposed by Eq. (12), based on the calculated results of the ultimate strengths for slender rib types of arch bridge structures.…”

“…The analytically determined values are presented by the symbolized marks, and the values drawn with heavy curves indicate the predicted results. Additional results for a range of values of Id/Ia, r and panel number are given in Table 3 for 2-hinged arch bridges, where columns (4) and (8) show the ultimate load intensity calculated by the ultimate-strength-analysis, (5), (6), (9) and (10) express the maximum member forces at a quarter point of arch rib determined from a linear analysis at the calculated ultimate load qmax' and (7) and (11) give the coefficient of accuracy defined by ratio of the calculated maximum force to the predicted one. The applicability of the proposed formula is also checked by varying the material strength.…”