Evaluation of Cyclic Performance of Seesaw Energy Dissipation System with Slit Damper

Document Type : Research Paper

Authors

1 Assistant Professor, Department of Civil Engineering, Birjand Branch, Islamic Azad university, Birjand, Iran

2 Master, Department of Civil Engineering, Birjand Branch, Islamic Azad University, Birjand, Iran

3 Department of Civil Engineering, Birjand Branch, Islamic Azad University, Birjand, Iran

Abstract

Steel slit damper is a replaceable and repairable tool that is made of a standard section with a number of slits in its core. The mechanism of this type of damper is such that before the bracing member buckles, the slit damper yields and the buckling instability of the brace is removed from the frame. In this study, the cyclic performance of the seesaw energy dissipation system with a slit damper with fixed and ellipse cavity in ABAQUS software has been investigated. The fundamental concept of the seesaw system is the quasi-linear motion mechanism, which enables the bracing members to remain in tension during vibration. In The following, the assessing and comparing the stiffness, the final strength and the amount of energy absorption of the samples are conducted. The results showed that by reducing the distance between the cavities of damper, the position of maximum stress occurs in the web plate of damper between slits and close to the sides and part of it near the flange plates. Further increase in the curvature of the holes reduced the amount and yield range of the damper so that the yielding range tended to the boundary of the slit walls. Also, by increasing the thickness by 40%, a similar result was obtained with the increase in the curvature of the holes, so that the entire distance is yielded between the cavities of damper on the sides.

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References

1- Saberi, V., Saberi, H., & Sadeghi, A., 2020, Collapse Assessment of Steel Moment Frames Based on Development of Plastic Hinges, Journal of Science and Technology, (In Persian).
2-Sadeghi, A., Hashemi, S., & Mehdizadeh, K., 2020, Probabilistic Assessment of Seismic Collapse Capacity of 3D Steel Moment-Resisting Frame Structures, Journal of Structural and Construction Engineering, (In Persian).
3- Saberi, V., Saberi, H., Salimikia, M., & Sadeghi, A., 2021, Investigation the cyclic behavior of rigid RBS connections with horizontal and vertical stiffeners in steel moment- resisting frame, Amirkabir Journal of Civil Engineering, (In Persian).
4- Lee, M. H., Oh, S. H., Huh, C., Oh, Y. S., Yoon, M. H., & Moon, T. S., 2002, Ultimate energy absorption capacity of steel plate slit dampers subjected to shear force, International Journal of Steel Structures, 71-79.
5- Chan, R., & Albermani, F., 2008, Experimental study of steel slit damper for passive energy dissipation, Engineering Structures, 30, 1058–1066.
6- Oh, S. H., Kim, Y. J., & Ryu, H. S., 2009, Seismic performance of steel structures with slit dampers, Engineering Structures, 31, 1997-2008.
7- Karavasilis, Theodore L., Sanaya Kerawala, and Emma Hale, 2012, Hysteretic model for steel energy dissipation devices and evaluation of a minimal-damage seismic design approach for steel buildings, Journal of Constructional Steel Research, 358-367.
8- Köken, A., and Köroglu, M. A., 2012, Waste rubber damper using on steel beam to column connection, International Journal of Arts & Sciences, 217.
9- Farahi Shahri, S., & Mousavi, S. R., 2016, Application of Elliptic Slits for Development of Slit Damper in Beam-to-Column Connection, IQBQ, 16, 1, 93-102 URL: http://mcej.modares.ac.ir/article-16-2005-fa.html
10- Tagawa, H., Trruaki, Y., Akira, T., Ricky, W., Chan, K., 2016, Cyclic behavior of seesaw energy dissipation system with steel slit dampers, Journal of Constructional Steel Research, 117, 24-34.
11- Chang-Hwan, L., Seung-Hee, L., Do-Hyun, K., & Jintak, Oh., 2016, Hourglass-shaped strip damper subjected to monotonic and cyclic loadings, Engineering Structures, 119, 122-134.
12- Joonho, L., Hyungoo, K., & Jinkoo, K., 2017, Seismic performance of steel plate slit-friction hybrid dampers, Journal of Constructional Steel Research, 128-139.
13- Shahri, S. F., and Mousavi, S. R., 2018, Seismic behavior of beam-to column connections with elliptic slit dampers, Steel and Composite Structures, 289-301.
14- Kohnehpooshi, O., & Salem, A., 2020, Structural behavior of steel slit damper in steel beam to column connection, Journal of Structural and Construction Engineering, 7, 1, 26-40.
15- Saberi, H., Saberi, V., Shandi Abadi, E., & Sadeghi, A., 2020, Investigation the Effect of Dampers with Different Damping in Improving the Performance of Chevron Braces, New Approaches in Civil Engineering, 4, 3, 58-81. (In Persian).
16- ABAQUS, ABAQUS/standard, (2012) version 6.11, ABAQUS, Inc., Pawtucket, R.I.
New Approaches in Civil Engineering
Volume 7, Issue 2
September 2023
Pages 46-70

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