Pilorge, Anne-Gaelle (2018) Impact of friction dampers and ductility factor on the seismic response of concrete moment resisting frame buildings. Masters thesis, Concordia University.
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Abstract
Infrastructures around the world are impacted by seismic events and therefore can suffer different types of losses that include: life, structure, economy and much more. It is important to control the vibration in structures using appropriate design methods, materials, and energy dissipation devices. There are many different types of energy dissipating devices providing supplemental damping to structures and control their vibration response. This research focuses on friction devices, particularly, the inline friction dampers used in diagonal bracings to control the vibration in buildings. There is no standard design process available in the National Building Code of Canada to design buildings with friction dampers. The procedure suggested in FEMA guidelines is quite complicated to use. The focus here is to use a rational method for building design with friction dampers and demonstrate the impact of friction dampers in the design process, and seismic response. Currently, dampers are used as a device which are supplementary to the structure post- design, to increase its strength and stiffness that benefit structures. However, that produces a highly conservative design which may not be economically justified. By letting the dampers take about a tart of the lateral forces, structure can be optimized. The effect of fiction dampers was observed by the reduction of moment and shear on columns, the reduction of cost. Six structures were designed for this study: elastic with and without dampers, moderately-ductile with and without dampers and ductile with and without dampers.
This study demonstrates that by designing and applying friction dampers into the design stage, the beams and columns attract less moment and shear impacting their sizes. While designing the structure, adding dampers helped reduce the cost in material for all three structures by around 7.5% in contrasts to the same model without dampers. An optimization of the structure section was made after adding the dampers into the structure. The impact of moment and shear into the columns and beams was shown to also be reduced of nearly 25-40% (the average is 29.5%). The seismic response of the different building models was determined using nonlinear pushover and time-history analyses. The results show that despite having smaller sections for beams and columns, the structures with dampers have reduced drift as compared to those without dampers. It was clearly demonstrated that friction dampers have an impact into the design of structures making them stronger with a higher response and lower cost. After calculating the cost of material and the overall results of analysis, the ductile structure is found to be the most economical choice. However, considering the post-earthquake damage and repair cost, the moderately-ductile structure with dampers will be a better option.
| Divisions: | Concordia University > Gina Cody School of Engineering and Computer Science > Building, Civil and Environmental Engineering |
|---|---|
| Item Type: | Thesis (Masters) |
| Authors: | Pilorge, Anne-Gaelle |
| Institution: | Concordia University |
| Degree Name: | M.A. Sc. |
| Program: | Civil Engineering |
| Date: | November 2018 |
| Thesis Supervisor(s): | Bagchi, Ashutosh |
| Keywords: | Performance base design, Friction dampers, concrete design, cost analysis, dynamic & static analysis, linear & non-linear analysis, ductility, seismic engineering. |
| ID Code: | 984904 |
| Deposited By: | Anne-Gaëlle Pilorgé |
| Deposited On: | 17 Jun 2019 19:25 |
| Last Modified: | 17 Jun 2019 19:25 |
References:
1. Baker, J. (2011). Conditional Mean Spectrum: Tool for Ground-Motion Selection. Journal of Structural Engineering, 137(3), 322-331. http://dx.doi.org/10.1061/(asce)st.1943-541x.00002152. Concrete Frame Design Manual CSA A23.3-14 for ETABS® 2016. (2015). United States of America.
3. CAC. (2017). CONCRETE DESIGN HANDBOOK (4th Ed.). Cement Association of Canada.
4. Chen, W., & Scawthorn, C. (2003). Earthquake engineering handbook (chapter 6). Boca Raton, FL: CRC Press.
5. Dalal, S., Dalal, P., & Desai, A. (2017). Effect of Increasing Ductility Factors on the Performance of a Steel Moment Resisting Frame Designed by the Performance Based Plastic Design Method attuned with Indian Code of Practice. Procedia Engineering, 173, 1862-1869. http://dx.doi.org/10.1016/j.proeng.2016.12.238
6. Eslami, A., & Ronagh, H. (2012). Effect of elaborate plastic hinge definition on the pushover analysis of reinforced concrete buildings. The Structural Design of Tall and Special Buildings, 23(4), 254-271. http://dx.doi.org/10.1002/tal.1035\
7. FEMA 356. (2000) Prestandard and Commentary for the Seismic Rehabilitation of Buildings, ASCE for the Federal Emergency Management Agency, Washington, D.C., November 2000.
8. FEMA 440. (2005). Improvement of nonlinear static seismic analysis procedures. ASCE for the Federal Emergency Management Agency, Washington, D.C.
9. FEMA 454. (2006). Designing for earthquakes. Books Express Publishing.
10. Guan, X., & Ou, J. (2008). Study of Smart Friction Damper Based on Smart Micro-Drive Actuator | Earth & Space 2008. Ascelibrary.org. Retrieved from http://ascelibrary.org/doi/pdf/10.1061/40988(323)178
11. Heysami, A. (2015). Types of Dampers and their Seismic Performance during an Earthquake. Current World Environment, 10(Special-Issue1), 1002-1015. http://dx.doi.org/10.12944/cwe.10.special-issue1.119
12. Jackson, M., & Scott, D. (2010). Increasing Efficiency in Tall Buildings by Damping Structures Congress 2010. Ascelibrary.org. Retrieved from http://ascelibrary.org/doi/abs/10.1061/41130(369)281
13. Jiao, Y., Kishiki, S., Ene, D., Yamada, S., Kawamura, N., & Konishi, Y. (2014). Plastic deformation capacity and hysteric behavior of U-shaped steel dampers for seismic isolated-buildings under dynamic cyclic loadings. Retrieved from https://nees.org/resources/12190/download/10NCEE-001236.pdf
14. Kiran, A., Agrawal, M., & Reddy, G. (2016). Seismic Retrofitting of a Process Column Using Friction Dampers. Procedia Engineering, 144, 1356-1363. http://dx.doi.org/10.1016/j.proeng.2016.05.165
15. Lago, A., Sullivan, T., & Calvi, G. (2012). Deformed Shapes of Structures equipped with Viscous Dampers. Retrieved from http://www.iitk.ac.in/nicee/wcee/article/WCEE2012_2541.pdf
16. Morgen, B., & Kurama, Y. (2008). Seismic Response Evaluation of Posttensioned Precast Concrete Frames with Friction Dampers. Journal of Structural Engineering, 134(1), 132-145. http://dx.doi.org/10.1061/(asce)0733-9445(2008)134:1(132)
17. Naghshineh, A., Kassem, A., Pilorge, A., Galindo, O. R., & Bagchi, A. (2018). Seismic Performance of Reinforced Concrete Frame Buildings Equipped with Friction Dampers. Structures Congress 2018. doi:10.1061/9780784481325.011
18. National building code of Canada, 2015. (2015). Ottawa, Ont.
19. NEHRP recommended provisions (National Earthquake Hazards Reduction Program) for seismic regulations for new buildings and other structures (FEMA 450). (2004). Washington, D.C.
20. Nie, J., Qin, K., & Xiao, V. (2006). Push-over analysis of the seismic behavior of a concrete-filled rectangular tubular frame structure. Tsinghua Science and Technology, 11(1), 124-130. http://dx.doi.org/10.1016/s1007-0214(06)70165-1
21. Oyen, P., & Parker, J. (2009). Seismic Rehabilitation of Extreme Soft-Story School Building with Friction Dampers Using the ASCE 41 Standard | Improving the Seismic Performance of Existing Buildings and Other Structures. Ascelibrary.org. Retrieved from http://ascelibrary.org/doi/pdf/10.1061/41084(364)86
22. Pall, A., & Pall, R. (1996). Friction-dampers for seismic control of buildings a Canadian experience. Iitk.ac.in. Retrieved from http://www.iitk.ac.in/nicee/wcee/article/11_497.PDF
23. Pant, D. R., Wijeyewickrema, A. C. and ElGawady, M. A. (2013), Appropriate viscous damping for nonlinear time‐history analysis of base‐isolated reinforced concrete buildings. Earthquake Engng Struct. Dyn., 42: 2321-2339. doi:10.1002/eqe.2328
24. Patil, C., Patil, V., & Kharmale, S. (2015). Performance-based plastic design of a high rise moment resisting frame with friction dampers.
25. PEER Ground Motion Database - PEER Center. (2018). Ngawest2.berkeley.edu. Retrieved from https://ngawest2.berkeley.edu/
26. Plotner, S. (2017). Building construction costs with RSMeans data 2017.
27. Qiu, C., Li, H., Ji, K., Hou, H., & Tian, L. (2017). Performance-based plastic design approach for multi-story self-centering concentrically braced frames using SMA braces. Engineering Structures, 153, 628-638. http://dx.doi.org/10.1016/j.engstruct.2017.10.068
28. Seismic Design with Friction Dampers - Quaketek | Earthquake protection Retrieved from: https://www.quaketek.com/seismic-design/
29. Seismic Energy Dissipation Devices. (2018). Retrieved from https://civil-engg-world.blogspot.ca/2011/03/seismic-energy-dissipation-devices.html
30. Shukla, K., & Dalal, S. (2017). Evaluation of Response Reduction Factor of a Reinforced Cement Concrete Building Designed by Performance Based Plastic Design Method and Limit State Design Method. Procedia Engineering, 173, 1854-1861. http://dx.doi.org/10.1016/j.proeng.2016.12.235
31. Tatar, A., Niousha, A. & Rofooei, F.R. J Civil Struct Health Monit (2017) 7: 123. https://doi.org/10.1007/s13349-017-0209-8
32. The ATC-72-1 report, (2010). Modeling and Acceptance Criteria for Seismic Design and Analysis of Tall Buildings, was developed under an agreement with the Pacific Earthquake Engineering Research Center (PEER).
33. Tirca, L. (2018). Friction Dampers for Seismic Protections of Steel Buildings Subjected to Earthquakes: Emphasis on Structural Design. Retrieved from https://doi.org/10.1007/978-3-642-36197-5_312-1
34. Whittle, J., Williams, M., & Blakeborough, A. (2012). Performance of Structural Members in Seismic Retrofitted Frames with Viscous Dampers. 15Th World Conference On Earthquake Engineering 2012 (15WCEE). Retrieved from http://www.iitk.ac.in/nicee/wcee/article/WCEE2012_2541.pdf
35. Wight, J. (2016). Reinforced concrete. Boston: Pearson.
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