Evaluation of seismic performance of Special truss moment frames (STMF) with Vierendeel special segment

Document Type : Article

Authors

School of Civil Engineering, College of Engineering, University of Tehran, Iran‌.

Abstract

In designing structures subjected to seismic forces, selecting an appropriate system based on seismic performance and building height is essential. Special Truss Moment Frames (STMF) are an innovative structural system designed to provide adequate lateral stiffness and control deformations. This system, combining steel trusses and columns instead of traditional beams, is highly efficient in absorbing lateral seismic forces, making it suitable for tall buildings and large spans. This study investigates the influence of the number of stories and the number of Vierendeel special segment panels in the STMF system on its seismic performance parameters. The analyzed models include nine cases with two, five, and eight stories, each designed with one, two, and three special segment panels. These models were developed in the ETABS software for preliminary design, while nonlinear analyses, including pushover and time history, were conducted in OpenSees. The pushover analysis was performed following FEMA P695 guidelines, and the nonlinear dynamic time history analysis was conducted based on ASCE 7 standards with 11 pairs of far-field ground motion records. The results highlight the high ductility of the STMF system, which increases with the number of stories and special segment panels, along with average over-strength factors of 2.5, which are close to the ASCE 7 recommended value of 3. The average transient story drift remained below 2%, while the average residual drift was approximately 0.15%, both within the permissible limits outlined in the code. Moreover, the models exhibit desirable seismic performance without any indications of non-compliance under severe seismic demands. In terms of design, increasing the number of panels in the special segment reduces the amount of structural steel required. This occurs because longer special segments result in lower expected shear forces, leading to smaller cross-sections for members outside the special segment. Conversely, models with shorter special segments demonstrate higher lateral stiffness and greater base shear capacities. Overall, this research confirms that the STMF system with Vierendeel special segments offers excellent seismic performance and can serve as a suitable and cost-effective option for designing structures with large spans.

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References

1. Itani, A. M., & Goel, S. C., 1991. Earthquake resistance of open web framing systems. Department of Civil Engineering, University of Michigan.
2. American Institute of Steel Construction (AISC), 1997. Seismic provisions for structural steel buildings. 1st ed. Chicago.
3. Basha, H. S., & Goel, S. C., 1994. Seismic-resistant truss moment frames with ductile vierendeel segment. University of Michigan.
4. Goel, S. C., & Itani, A. M., 1994. Seismic-resistant special trussmoment frames. Journal of Structural Engineering, 120(6),pp. 1781–1797.
5. Basha, H. S., & Goel, S. C., 1995. Special truss moment frames with vierendeel middle panel. Engineering Structures,17(5),pp.352–358. https://doi.org/10.1016/0141-0296(95)00018-3.
6. Chao, S.-H., & Goel, S. C., 2008. Performance-based plastic design of special truss moment frames. Engineering Journal, 45(2), pp. 127–150. https://www.researchgate.net/publication/255600732.
7. Simasathien, S., Jiansinlapadamrong, C., & Chao, S.-H., 2017. Seismic behavior of special truss moment frame with double hollow structural sections as chord members. Engineering Structures, 131,pp.14–27. https://doi.org/10.1016/j.engstruct.2016.10.001.
8. Kumar, R., Sahoo, D.R., 2021. Seismic fragility of steel special truss moment frames with multiple ductile vierendeel panels. Soil Dynamics and Earthquake Engineering.2021,pp.143:106603. https://doi.org/10.1016/j.soildyn.2021.106603.
9. Jiansinlapadamrong, C., Park, K., Hooper, J., & Chao, S. H., 2019. Seismic design and performance evaluation of long-span special truss moment frames. Journal of StructuralEngineering, 145(7), pp.04019053. https://doi.org/10.1061/(ASCE)ST.1943-541X.0002340.
10. American Institute of Steel Construction (AISC). AISC 341–10: Seismic provisions for structural steel buildings. AISC; 2010.
11. Chao, S. H., Jiansinlapadamrong, C., Simasathien, S., & Okazaki, T., 2020. Full-scale testing and design of special truss moment frames for high-seismic areas. Journal of Structural Engineering, 146(3), pp.04019229. https://doi.org/10.1061/(ASCE)ST.1943-541X.0002541.
12. Kumar, R., & Sahoo, D. R., 2021. Seismic fragility of steel special truss moment frames with multiple ductile vierendeel panels. Soil Dynamics and EarthquakeEngineering, 143,pp.106603. https://doi.org/10.1016/j.soildyn.2021.106603.
13. American Society of Civil Engineers (ASCE), 2022. ASCE7-22: Minimum design loads for buildings and other structures.
14. American Institute of Steel Construction (AISC), 2022. AISC 341–22: Seismic provisions for structural steel buildings.
15. American Institute of Steel Construction (AISC), 2022. AISC 360–22: Specification for Structural Steel Buildings.
16. Chao, S.-H., and S. C. Goel., 2008. A modified equation for expected maximum shear strength of the special segment for design of special truss moment frames. Eng. J. 45 (2): pp.117–125. https://www.researchgate.net/publication/289588405.
17. Federal Emergency Management Agency (FEMA), 2009. Quantification of seismic performance factors. FEMA P695. Applied Technology Council.
18. Asghari, A., 2016. Evaluating the ductility of x-braced frames which are braced in two middle adjacent spans. Ferdowsi Civil Engineering, 27(2),pp. 57-74. https://dx.doi.org/10.22067/civil.v27i2.33325.
19. Asghari, A., & Azimi, B., 2017. Evaluation of sensitivity of CBFs for types of bracing and story numbers. ScientiaIranica, 24(1),pp.40-52. https://dx.doi.org/10.24200/sci.2017.2375.
20. Asghari, A., & Saharkhizan, S., 2019. Seismic design and performance evaluation of steel frames with knee-element connections. Journal of Constructional Steel Research, 154,pp.161-176. https://doi.org/10.1016/j.jcsr.2018.11.011.
21. Asghari, A., & Hosseini, S., 2024. Seismic behavior assessment of special concentrically x-Braced frame with through gusset plate. Iranian Journal of Science and Technology, Transactions of Civil Engineering, pp. 1-13. https://doi.org/10.1007/s40996-024-01524-4.
22. AISC. AISC 341–05: Seismic provisions for structural steel buildings. Chicago: AISC; 2005.
23. AISC, 2016. Specification for structural steel buildings. Chicago.
24. American Society of Civil Engineers (ASCE), 2016. ASCE7-16: Minimum design loads for buildings and other structures.
25. ASCE/SEI, 2012. ASCE 41–12: Seismic evaluation and retrofit of existing buildings.
26. OpenSees, 1999. Open System for Earthquake Engineering Simulation Computer software. Berkeley CA, Pacific Earthquake Engineering Research Centre, Univ. of Berkeley.
27. Asghari A., Gandomi Amir H., 2016. Ductility reduction factor and collapse mechanism evaluation of a new steel knee braced frame. Structure and Infrastructure Engineering, 12:2, pp. 239-255. https://doi.org/10.1080/15732479.2015.1009123.
28. Jalilzadeh Afshari M., Asghari A., Gholhaki M., 2019. Shear strength and stiffness enhancement of cross-stiffened steel plate shear walls. International Journal of Advanced Structural Engineering 11 (2),pp. 179-193. https://doi.org/10.1007/s40091-019-0224-6.
29. Torabizadeh, A., Foyouzat, A., Asghari, A., & Mohammadi, S., 2024. Self-centering of steel braced frames equipped with Fe-SMA TADAS dampers. Smart Materials and Structures, 33(6), pp.065025.  https://doi.org/10.1088/1361-665x/ad49f0.
30. ETABS, 2022. Structural software for building analysis and design. Berkeley, California, USA: Computers and 876 Structures, Inc.
31. Rousta, A. M., Shoja, S., & Amin Safaei Ardakani, M., 2023. Investigating cyclic and pushover performance of different metallic yielding dampers. Journal of Rehabilitation in Civil Engineering, 11(3),pp. 122-143. https://doi.org/10.22075/JRCE.2022.26848.1639.
32 Rousta, A. M., 2023. Seismic retrofitting of steel moment-resisting frames (SMRFs) using steel pipe dampers. Structural Engineering and Mechanics, An Int'l Journal, 87(1), pp. 69-84.       https://doi.org/10.12989/sem.2023.87.1.069.
33. Rousta, A. L. I., Amin Safaei Ardakani, M., & Shoja, S., 2022. Numerical and analytical investigation of seismic performance of steel dampers with different heights and shapes. Journal of Structural and Construction Engineering, 9(3), pp.208-227. https://doi.org/10.22065/JSCE.2021.270979.2352.
34. Hadinejad, A., Asghari, A., & Marefat, M. S., 2025. Evaluation of the FEMA P695 methodology for quantification of seismic performance factors in dual steel SCBF-SMF structures. Structures 2025;71, pp. 108172. https://doi.org/10.1016/j.istruc.2024.108172.

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