A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Comparative Study on Seismic Performance of Steel Diagrid Structures with and Without Dampers
The quick development of the urban populace and confinement of accessible land creates roots in the development of high-rise buildings in recent days. In the case of tall buildings, the lateral loads create considerable stresses and lateral deflection. In order to resist the lateral loads, various separate structural systems such as shear wall, brace frame and diagrid structural system are introduced in high rise structures. In this paper, analysis of conventional steel structures and diagrid steel structures with friction dampers for 50-storey buildings is considered. A floor plan of 40 m × 20 m size is considered and modelling has been done for the same high-rise structures by considering material properties and various specifications using ETABS software. The time history analysis is carried out for both the structures and the performance of structure under lateral loads is identified by comparing various parameters such as displacement, drift, storey shear and stiffness. Test results indicate that when friction dampers are introduced in the diagrid intersecting points, the storey displacement and storey drifts on every storey are seen to be less in diagrid structure storey are observed to be less in diagrid structure with dampers while contrasted with the traditional structures, and they will be considerable improvement in storey stiffness which tends to show that diagrid structure with dampers behaves better in lateral load. Diagrid buildings have less displacement, less storey drift and less bending moment under wind and seismic load when compared to conventional buildings. The energy dissipating device like friction damper is introduced in the slab system which reduces the energy required for the displacement and strain.
Comparative Study on Seismic Performance of Steel Diagrid Structures with and Without Dampers
The quick development of the urban populace and confinement of accessible land creates roots in the development of high-rise buildings in recent days. In the case of tall buildings, the lateral loads create considerable stresses and lateral deflection. In order to resist the lateral loads, various separate structural systems such as shear wall, brace frame and diagrid structural system are introduced in high rise structures. In this paper, analysis of conventional steel structures and diagrid steel structures with friction dampers for 50-storey buildings is considered. A floor plan of 40 m × 20 m size is considered and modelling has been done for the same high-rise structures by considering material properties and various specifications using ETABS software. The time history analysis is carried out for both the structures and the performance of structure under lateral loads is identified by comparing various parameters such as displacement, drift, storey shear and stiffness. Test results indicate that when friction dampers are introduced in the diagrid intersecting points, the storey displacement and storey drifts on every storey are seen to be less in diagrid structure storey are observed to be less in diagrid structure with dampers while contrasted with the traditional structures, and they will be considerable improvement in storey stiffness which tends to show that diagrid structure with dampers behaves better in lateral load. Diagrid buildings have less displacement, less storey drift and less bending moment under wind and seismic load when compared to conventional buildings. The energy dissipating device like friction damper is introduced in the slab system which reduces the energy required for the displacement and strain.
Comparative Study on Seismic Performance of Steel Diagrid Structures with and Without Dampers
Lecture Notes in Civil Engineering
Satyanarayanan, K. S. (editor) / Seo, Hyung-Joon (editor) / Gopalakrishnan, N. (editor) / Vishali, M. (author) / Pradeep, S. (author) / Satyanarayanan, K. S. (author)
2021-12-15
9 pages
Article/Chapter (Book)
Electronic Resource
English
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