TY - GEN
T1 - In-plane buckling strength and design of parabolic arch ribs in uniform compression
AU - Moon, J.
AU - Kim, S.
AU - Lee, H.
AU - Yoon, K.
PY - 2006
Y1 - 2006
N2 - The purpose of this paper was to investigate the nonlinear elastic and inelastic behaviors of fixed parabolic arch ribs, due to the lack of study on fixed parabolic arch ribs. The in-plane nonlinear elastic and inelastic buckling behaviors and the strength of fixed parabolic arch ribs, when subjected to a vertically distributed load, were investigated using a finite element analysis. The FE models used in this study were verified using the results obtained by other researchers. The verification showed that the FE model used for the analysis was able to depict, with a good degree of accuracy, the in-plane behaviors of parabolic arch ribs. 75 FE models were used to investigate the nonlinear elastic behavior of a fixed parabolic arch subjected to a vertically distributed load. From the nonlinear elastic analysis, the buckling mode of arch ribs was observed to be dependent on the rise-span-ratio and S/r ratio of the arch ribs. 107 FE models, including residual stresses and initial imperfections, were analyzed to observe the inelastic behavior of fixed parabolic arch ribs. The effects of residual stresses and initial imperfections were investigated. Finally, it was found that the buckling curve for a straight column can be apply to fixed parabolic arch ribs subjected to a vertically distributed load with the exception of shallow arch ribs.
AB - The purpose of this paper was to investigate the nonlinear elastic and inelastic behaviors of fixed parabolic arch ribs, due to the lack of study on fixed parabolic arch ribs. The in-plane nonlinear elastic and inelastic buckling behaviors and the strength of fixed parabolic arch ribs, when subjected to a vertically distributed load, were investigated using a finite element analysis. The FE models used in this study were verified using the results obtained by other researchers. The verification showed that the FE model used for the analysis was able to depict, with a good degree of accuracy, the in-plane behaviors of parabolic arch ribs. 75 FE models were used to investigate the nonlinear elastic behavior of a fixed parabolic arch subjected to a vertically distributed load. From the nonlinear elastic analysis, the buckling mode of arch ribs was observed to be dependent on the rise-span-ratio and S/r ratio of the arch ribs. 107 FE models, including residual stresses and initial imperfections, were analyzed to observe the inelastic behavior of fixed parabolic arch ribs. The effects of residual stresses and initial imperfections were investigated. Finally, it was found that the buckling curve for a straight column can be apply to fixed parabolic arch ribs subjected to a vertically distributed load with the exception of shallow arch ribs.
UR - http://www.scopus.com/inward/record.url?scp=56749092165&partnerID=8YFLogxK
U2 - 10.1201/b18175-334
DO - 10.1201/b18175-334
M3 - Conference contribution
AN - SCOPUS:56749092165
SN - 0415403154
SN - 9780415403153
T3 - Proceedings of the 3rd International Conference on Bridge Maintenance, Safety and Management - Bridge Maintenance, Safety, Management, Life-Cycle Performance and Cost
SP - 789
EP - 790
BT - Proceedings of the 3rd International Conference on Bridge Maintenance, Safety and Management - Bridge Maintenance, Safety, Management, Life-Cycle Performane and Cost
PB - Taylor and Francis/ Balkema
T2 - 3rd International Conference on Bridge Maintenance, Safety and Management - Bridge Maintenance, Safety, Management, Life-Cycle Performance and Cost
Y2 - 16 July 2006 through 19 July 2006
ER -