Dissipation Capacity of Steel Building with Fiction Pendulum Base-Isolation System
Creators
Description
Use of base isolators in the seismic design of structures has attracted considerable attention in recent years. The major concern in the design of these structures is to have enough lateral stability to resist wind and seismic forces. There are different systems providing such isolation, among them there are friction- pendulum base isolation systems (FPS) which are rather widely applied nowadays involving to both affordable cost and high fundamental periods. These devices are characterised by a stiff resistance against wind loads and to be flexible to the seismic tremors, which make them suitable for different situations. In this paper, a 3D numerical investigation is done considering the seismic response of a twelve-storey steel building retrofitted with a FPS. Fast nonlinear time history analysis (FNA) of Boumerdes earthquake (Algeria, May 2003) is considered for analysis and carried out using SAP2000 software. Comparisons between fixed base, bearing base isolated and braced structures are shown in a tabulated and graphical format. The results of the various alternatives studies to compare the structural response without and with this device of dissipation energy thus obtained were discussed and the conclusions showed the interesting potential of the FPS isolator. This system may to improve the dissipative capacities of the structure without increasing its rigidity in a significant way which contributes to optimize the quantity of steel necessary for its general stability.
Files
10005725.pdf
Files
(404.9 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:34aa0c7e528960e62b328e844b61562a
|
404.9 kB | Preview Download |
Additional details
References
- Becker, T., C. Advanced modeling of the performance of structures supported on triple friction pendulum bearings. Thèse de doctorat en philosophie, University of Berkeley, California, USA (2011).
- Tsai, C. Advanced base isolation systems for light weight equipments. Earthquake-resistant structures - Design, assessment and rehabilitation, handbook, InTech publication, pp. 79-130, (2012).
- Jakkermann, J., & Hewener, A., Seismische isolierung des gebetssaals der großen moschee von algerien. FACHTHEMA, Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co, 110, pp. 155-161, (2015).
- Petti, L., Polichetti, F., & Palazzo, B. Analysis of Seismic performance of FPS base isolated structures subjected to near fault events. International Journal of Engineering and Technology, V.5, N° 6, pp. 5233-5240, (2014)
- Cardone, D., Gesualdi, G., & Brancato, P. Restoring capability of friction pendulum seismic isolation systems. Bulletin of Earthquake Engineering, V. 13, N° 8, pp. 2719-2744, (2015).
- Fan, F., Kong, D., Sun, M., & Zhi, X. Anti-seismic effect of lattice grid structure with Friction Pendulum bearings under the earthquake impact of various dimensions. International Journal of Steel Structures, V.14, N° 4, pp. 777-784, (2014).
- Lu, L., Lee, T., Juang, S., & Yeh, S. Polynomial friction pendulum isolators (PFPIs) for building floor isolation: An experimental and theoretical study. Engineering Structures, V. 56, pp. 970-982, (2013).
- Huang, M., Wang, Y., Lin, T., & Chen, T. Development of physical-parameter identification procedure for in-situ buildings with sliding-type isolation system. Journal of Sound and Vibration, 332, pp. 3315-3328, (2013).
- Fan, F., G., & Ahmadi, G. Multi-story base-isolated buildings under a harmonic ground motion - Part I: A comparison of performances of various systems. Nuclear Engineering and Design, 123, pp. 1-16, (1990). [10] Nonlinear Structural Analysis Program, SAP2000 User Manual, Computer and Structure, Inc, CA, USA, (2010). [11] RPA99/2003 code parasismique Algérien, Document technique DTR B C 2 48, Alger, Algérie (2003).