Retrofitting Steel Moment Frames by Using the Cable Bracing

Mohammad Naghavi (Department of Civil Engineering, Javid Institute for Higher Education of Jiroft, Iran)

Abstract


In this paper, the behavior of retrofitted steel moment frames with bracing has been investigated. Braces include double-channel cross brace, cross braces with cable and brace with two cables passed through a cylindrical steel sheath at the location of the cables. Nonlinear analysis of frames has been carried out under cyclic loading with increasing amplitudes. Comparison of numerical analysis results with laboratory data shows the accuracy of finite element models. By determining the hysteresis and plasticity behavior of the frames, advantages and disadvantages of each of the retrofitting methods have been examined. The results have shown the use of double channels and cables to retrofit the frame increases the initial hardness and final load of the frame considerably compared to the moment frames and reduces its ductility. In frame with sheathed cable brace, the initial hardness was the same with the moment frames and the frame has been shown to have ductile behavior.

Keywords


Steel moment frames; Cable bracing; Nonlinear behavior; Hysteresis curve

Full Text:

PDF

References


[1] Rahnavard, R., Hassanipour, A., Suleiman, M., Mokhtari, A. (2017). Evaluation on eccentrically braced frame with single and double shear panel. Journal of Building Engineering, 10, 13–25

[2] Rahnavard, R., Fard, F. F. Z., Hosseini, A., Suleiman, M. (2018). Nonlinear analysis on progressive collapse of tall steel composite buildings. Case Studies in Construction Materials. 8. 359–379

[3] Rahnavard, R., Siahpolo, N., Function comparison between moment frame and moment frame with centrically braces in high-rise steel structure under the effect of progressive collapse. Journal of Structural and Construction Engineering. 4(4). Serial Number 14, 42-57. DOI: 10.22065/jsce.2017.77865.1084

[4] Tamai, H. and Takamatsu, T. Cyclic loading tests on a non-compression brace considering performance based seismic design, Journal of Constructional Steel Research, 61(9), 1301-1317 (September 2005).

[5] Bartera, F. and Giacchetti, R., (2004). Steel dissipating braces for upgrading existing building frames, Journal of Constructional Steel Research, 60(3), 751-769

[6] Rahnavard, R., Hassanipour, A., (2015). Steel Structures analysis using ABAQUS, Kerman: Academic Center for Education, Culture and Research, Publishing Organization of Kerman branch

[7] Rahnavard, R., Hassanipour, A., Mounesi, A., (2016). Numerical study on important parameters of composite steel-concrete shear walls. Journal of Constructional Steel Research. 121 441–456

[8] Rahnavard, R., Naghavi, M., Abudi, M., Suleiman, M., (2018). Investigating Modeling Approaches of Buckling-Restrained Braces under Cyclic Loads, Case Studies in Construction Materials. Case Studies in Construction Materials. 8. 476–488

[9] Naghavi, M., Rahnavard, R., Thomas, R. J., Malekinejad, M., (2019). Numerical evaluation of the hysteretic behavior of concentrically braced frames and buckling restrained brace frame systems. Journal of Building Engineering. 22. Pages 415-428

[10] Naghavi, M., Malekinejad, M., (2018). A Study of the Behavior of Steel Moment Frame with Buckling Restrained Bracing (Review Article). Soil Structure Interaction Journal. 3(1)

[11] Xie, Q. (2005). State of the art of buckling-restrained braces in Asia. Journal of Constructional Steel Research. 61(6), 727-748

[12] Sun, H., Jia, M., Zhang, S., Wang, Y., (2019). Study of buckling-restrained braces with concrete infilled GFRP tubes. Thin Walled Structures, 136, 16-33

[13] Hou, X., Tagawa, H. (2009). Displacement-restraint bracing for seismic retrofit of steel moment frames. Journal of Constructional Steel Research, 65 1096–1104

[14] ABAQUS, Inc., Ver. 6.9, Analysis User's Manual (2010)

[15] Rahnavard, R., Thomas, R. J., (2018). Numerical Evaluation of the Effects of Fire on Steel Connections; Part 1: Simulation Techniques. Case Studies in Thermal Engineering. Vol 12, page 445-453

[16] Rahnavard, R., Thomas, R. J., (2019). Numerical Evaluation of the Effects of Fire on Steel Connections; Part 2: Model results. Case Studies in Thermal Engineering, 13. DOI: https://doi.org/10.1016/j.csite.2018.11.012

[17] Rahnavard, R., Siahpolo, N., Naghavi, M., Hassanipour, A., (2014). Analytical Study of Common Rigid Steel Connections under the Effect of Heat. Advances in Civil Engineering. 2014, Article ID 692323. DOI:10.1155/2014/692323

[18] Hassanipour, A., Rahnavard, R., Mokhtari, A., Rahnavard, N., (2016). Numerical investigation on reduces web beam section moment connections under the effects on cyclic loading. J. Multidiscip. Eng. Sci. Technol. (JMEST), 2(8), 3159-0040

[19] Rahnavard, R., Khaje, M. T., Hassanipour, A., Siahpolo, N., (2017). Parametric Study of Seismic Performance of Steel Bridges Pier Rehabilitated with Composite Connection. Journal of Structural and Construction Engineering. DOI: 10.22065/JSCE.2017.92128.1259

[20] Rahnavard, R., Hassanipour, A., Siahpolo, N., (2015). Analytical study on new types of reduced beam section moment connections affecting cyclic behavior. Case Studies in Structural Engineering, 3, 33-51

[21] Radkia, S., Gandomkar, F. A., Rahnavard, R., (2018). Seismic Response of Asymmetric Sliding Steel Structure with Considering Soil-Structure Interaction Effects. Journal of Structural and Construction Engineering. DOI: 10.22065/JSCE.2018.105638.1384

[22] Radkia, S., Rahnavard, R., Gandomkar, F. A., (2018). Evaluation of the effect of different seismic isolators on the behavior of asymmetric steel sliding structures. Journal of Structural and Construction Engineering. DOI: 10.22065/JSCE.2018.114089.1428



DOI: https://doi.org/10.30564/jbms.v1i1.786

Refbacks

Copyright © 2019 Mohammad Naghavi


Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.