A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic behavior evaluation of steel infill plate composite shear wall systems following FEMA P695 methodology
Steel plate reinforced concrete composite shear wall (SPRW) is an excellent system for dealing with lateral loads to protect against earthquake-induced collapse. In these systems, steel plates can significantly enhance the structure's energy dissipation and lateral load-bearing capacity, while concrete can help protect steel against buckling and corrosion. This research investigates the seismic collapse of a structure, including an SPRW frame system with various aspect ratios, thicknesses, and boundary elements. Thus, finite element models are first validated according to previous experimental findings. 32 multi-story (3, 5, 7, and 9-story) archetypal models with varying structural configurations are studied across eight performance groups. The structures are subjected to nonlinear static and then incremental dynamic analysis (IDA) using 44 far-field ground motions and factors affecting seismic performance, including the response modification factor (R), overstrength factor (Ω), period-based ductility factor (µt), and displacement amplification factor (Cd) regarding the method mentioned by FEMA P695, are presented. Dynamic study of archetypal index models revealed that the composite shear wall system maintained proper seismic performance and a safe margin against collapse. As mentioned earlier composite shear wall system satisfies the acceptance requirements for a seismic response modification factor of 7.5.
Seismic behavior evaluation of steel infill plate composite shear wall systems following FEMA P695 methodology
Steel plate reinforced concrete composite shear wall (SPRW) is an excellent system for dealing with lateral loads to protect against earthquake-induced collapse. In these systems, steel plates can significantly enhance the structure's energy dissipation and lateral load-bearing capacity, while concrete can help protect steel against buckling and corrosion. This research investigates the seismic collapse of a structure, including an SPRW frame system with various aspect ratios, thicknesses, and boundary elements. Thus, finite element models are first validated according to previous experimental findings. 32 multi-story (3, 5, 7, and 9-story) archetypal models with varying structural configurations are studied across eight performance groups. The structures are subjected to nonlinear static and then incremental dynamic analysis (IDA) using 44 far-field ground motions and factors affecting seismic performance, including the response modification factor (R), overstrength factor (Ω), period-based ductility factor (µt), and displacement amplification factor (Cd) regarding the method mentioned by FEMA P695, are presented. Dynamic study of archetypal index models revealed that the composite shear wall system maintained proper seismic performance and a safe margin against collapse. As mentioned earlier composite shear wall system satisfies the acceptance requirements for a seismic response modification factor of 7.5.
Seismic behavior evaluation of steel infill plate composite shear wall systems following FEMA P695 methodology
Asian J Civ Eng
Hajiaghamohamadi, Moein (author) / Mofid, Massood (author)
Asian Journal of Civil Engineering ; 24 ; 3529-3542
2023-12-01
14 pages
Article (Journal)
Electronic Resource
English
Evaluation of seismic response factors for BRBFs using FEMA P695 methodology
| British Library Online Contents | 2018