- Sigma Mühendislik ve Fen Bilimleri Dergisi
- Cilt: 42 Sayı: 1
- LYS semi-supported plate as a ductile end-diaphragm in steel girder bridges
LYS semi-supported plate as a ductile end-diaphragm in steel girder bridges
Authors : Morteza Jamshidi
Pages : 70-81
View : 17 | Download : 38
Publication Date : 2024-02-27
Article Type : Research
Abstract :Ductile end diaphragms have been suggested as an appropriate device in the past to improve the seismic response of steel girder bridges. This paper investigates the efficiency of the seis-mic design strategy that utilized a slab-connected steel plate as a ductile diaphragm in the superstructure. Protecting the main girder from typically reported damage and mitigating the transferred lateral load to the non-ductile substructures are the main objectives of this study. The results show that a slab-connected thin steel plate with low yielding stress (LYS) can miti-gate the force demand on the non-ductile substructures and act as a structural fuse. It can also reduce the transverse displacement of the superstructure and, consequently, prevent the end of the main girder from buckling and/or yielding.Keywords : Steel Bridge, Steel Plate, End Diaphragm, Seismic Design, Low-Yield Steel