Volume 1, Issue 1 (9-2016)                   NMCE 2016, 1(1): 14-20 | Back to browse issues page

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Sabouri-Ghomi S, Saadati B. Numerical modeling of links behavior in eccentric bracings with dual vertical links. NMCE 2016; 1 (1) :14-20
URL: http://nmce.kntu.ac.ir/article-1-32-en.html
1- Professor, Civil Engineering Department, K.N. Toosi University of Technology, Tehran Iran
2- PhD, Civil Engineering Department, K.N. Toosi University of Technology, Tehran, Iran.
Abstract:   (3272 Views)
Configuration and geometry of bracing systems affect the seismic performance of structures significantly. Recently, the current authors have introduced a new configuration for eccentric bracing of structural frames that may be assumed as the combination of inverted Y-type and rotated K-type EBFs. The resulted braced frame is called EBF-DVL, consisting of two vertical links attached together by a horizontal link. For evaluating the vertical links of EBF-DVL in seismic conditions, a total number of 4 cyclic quasi-static tests were performed on the specimens with different link lengths, sections and material grades. In this research, a summary of tests performed on experimental specimens are presented at first. Afterwards, the results of numerical modeling using ABAQUS software are described and compared with the experimental results. Cyclic loading was applied on each model, similar to the deformation history which was used during the tests. The effects of both material and geometry nonlinearities are considered. The diagrams of Load-displacement resulted from numerical analyses have a good agreement with the experimental ones although there is more inconsistency in cases with steeper softening behavior. Also, the behavior of the links' components and yielding sequences are the same as experimental specimens.
Full-Text [PDF 1371 kb]   (1657 Downloads)    
Type of Study: Research | Subject: Special
Received: 2013/10/21 | Revised: 2014/02/6 | Accepted: 2014/06/8 | ePublished ahead of print: 2014/06/18

1. [1] AISC-341. 2010. Seismic Provisions for Structural Steel Buildings, Chicago.
2. [2] Engelhardt, MD., Popov, EP., 1989. On Design of Eccentrically Braced Frames. Earthquake Spectra: 5, 495-511. [DOI:10.1193/1.1585537]
3. [3] Fortney, PJ., Shahrooz, BM., Rassati, GA., 2007. Large-Scale Testing of a Replaceable "Fuse" Steel Coupling Beam. Journal of Structural Engineering, ASCE: 133, 1801-1807. [DOI:10.1061/(ASCE)0733-9445(2007)133:12(1801)]
4. [4] Hisatoku, T., Segawa, T., Mukai, H., 1974. Experimental study on the static behaviour of the Y-typed bracings. Report No. 12, Takenaka Technichal Institute.
5. [5] Hjelmstad, KD., Popov, EP., 1983. Cyclic Behavior and Design of Link Beams. Journal of Structural Engineering, ASCE: 109, 2387-2403. [DOI:10.1061/(ASCE)0733-9445(1983)109:10(2387)]
6. [6] Kasai, K., Popov, EP., 1983. General behavior of WF steel shear link beams. Journal of Structural Engineering, ASCE: 112, 362-382. [DOI:10.1061/(ASCE)0733-9445(1986)112:2(362)]
7. [7] Malley, J., Popov, EP., 1983. Design Considerations for Shear Links in Eccentrically Braced Frames. Report No. EERC 83-24. Earthquake Engineering Research Center, University of California, Berkeley, CA.
8. [8] Mansour, N., Christopoulos, C., Tremblay, R., 2011. Experimental Validation of Replaceable Shear Links for Eccentrically Braced Steel Frames. Journal of Structural Engineering, ASCE: 137, 1141-1152. [DOI:10.1061/(ASCE)ST.1943-541X.0000350]
9. [9] Mazzolani, FM., 2008. Innovative metal systems for seismic upgrading of RC structures. Journal of Constructional Steel Research: 64, 882-895. [DOI:10.1016/j.jcsr.2007.12.017]
10. [10] Perera, R., Gómez, S., Alarcón, E., 2004. Experimental and Analytical Study of Masonry Infill Reinforced Concrete Frames Retrofitted with Steel Braces. Journal of Structural Engineering, ASCE: 130, 2032-2039. [DOI:10.1061/(ASCE)0733-9445(2004)130:12(2032)]
11. [11] Roeder, CW., Popov, EP., 1977. Inelastic Behavior of Eccentrically Braced Steel Frames Under Cyclic Loadings. Report No. EERC 77-18. Earthquake Engineering Research Center, University of California, Berkeley, CA.

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