Abstract
In order to improve the seismic performance of vertical setback steel bundled-tube structure and meet the dynamic multi-objective requirements of seismic performance-based design, the optimization effects under rare earthquakes on the zone of fortification intensity 7 and 8 in China are researched by improving members stiffness and adding dampers in the weak parts of structure, based on dynamic elastic-plastic analysis. The results show that: 1) Under rare earthquakes on the zone of fortification intensity 7, increasing the stiffness of weak skirt beam can improve the seismic performance of spiral and symmetrical setback structure; 2) For the spiral setback structure, under rare earthquakes on the zone of fortification intensity 7, the damper can only be arranged at the junction of the first layer of the setback frame unit and the frame unit without setback. However, under rare earthquakes on the zone of fortification intensity 8, it is not advisable to install dampers at the weak areas; 3) After incorporating dampers at the weak areas of symmetrical setback structure, the optimized members experienced a reduction in stress levels, significantly decreased the inter-layer displacement angles with a maximum reduction of 43%, and the optimization effect is significant.
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References
Ananthi GBG (2018) A Study on cold-formed steel compound angle section subjected to axial compression. KSCE Journal of Civil Engineering 22(5):1803–1815, DOI: https://doi.org/10.1007/s12205-017-1221-6
Ananthi GBG, Roy K, Lim JBP (2022a) Behaviour and strength of back-to-back built-up cold-formed steel unequal angle sections with intermediate stiffeners under axial compression. Steel and Composite Structures 42(1):1–22, DOI: https://doi.org/10.12989/scs.2022.42.1.001
Ananthi GBG, Roy K, Lim JBP (2022b) Experimental and numerical study of an innovative 4-channels cold-formed steel built-up column under axial compression. Steel and Composite Structures 42(4):513–538, DOI: https://doi.org/10.12989/scs.2022.42.4.513
Ananthi GBG, Roy K, Raftery GM, Lim JBP (2022c) Influence of intermediate stiffeners on axial capacity of thin-walled built-up open and closed channel section columns. Buildings 12(08):1071, DOI: https://doi.org/10.3390/buildings12081071
Bertero RD, Bertero VV (2002) Performance-based seismic engineering: The need for a reliable conceptual comprehensive approach. Earthquake Engineering and Structural Dynamics 31:627–652, DOI: https://doi.org/10.1002/eqe.146
CABR (2010) China Academy of Building Research. [software]
Hao Y, Li YS, Jiu ZG, Zhang T, Wang FT, Zhang XS (2017a) Research on the vertical setback problem of steel bundled tube structure. American Journal of Civil Engineering 5(4):235–241, DOI: https://doi.org/10.11648/j.ajce.20170504.17
Hao Y, Lou Y, Du XL, Wen LY, Liu BW, Lv ZC (2017b) Steel bundledtube structural energy response analysis under rare earthquake. Journal of Building Structures 38(5):52–60, DOI: https://doi.org/10.14006/j.jzjgxb.2017.05.007
Huang X, Zhu XD, Hu XY, Huang ZW, Qi L (2020) Performance-based seismic analysis and design of asymmetric vertical setback high-rise structure with frame-core tube-outrigger system. Journal of Building Structures 41(S2):349–356, DOI: https://doi.org/10.14006/j.jzjgxb.2020.S2.0038
Jose A, Mishra NB (2021) Seismic analysis of multistorey RC building with vertical setback and its retrofit strategies. In: Kumar Shukla, S., Raman, S.N., Bhattacharjee, B., Bhattacharjee, J. (eds) Advances in Geotechnics and Structural Engineering. Lecture Notes in Civil Engineering, 143, Springer, Singapore
Kashkooli NA, Banan MR (2013) Effect of frame irregularity on accuracy of modal equivalent nonlinear static seismic analysis. KSCE Journal of Civil Engineering 17:1064–1072, DOI: https://doi.org/10.1007/s12205-013-0137-z
Li G, Cheng GD (2004) Theory, method and application of structural seismic design based on performance. Science Press, Beijing, China, 2–13
Lu DY, Liu C, Jiang WW, Huang L, Li M, Ha MQ (2014) Influence analysis of the setback on the seismic performance of the multiple complicated super high-rise structure. Building Structure 44(18):14–17, DOI: https://doi.org/10.19701/j.jzjg.2014.18.004
Luo KH, Mu JP (2014) Detailed application of common seismic codes in construction engineering. China Architecture & Building Press, Beijing, China, 46–51
Moehle JP (1984) Seismic response of vertically irregular structures. Journal of Structural Engineering 110(9):2002–2014, DOI: https://doi.org/10.1061/(ASCE)0733-9445(1984)110:9(2002)
Moehle JP (1986) Aarcon LF. Seismic analysis methods for irregular buildings. Journal of Structural Engineering 112(1):35–53, DOI: https://doi.org/10.1061/(ASCE)0733-9445(1986)112:1(35)
Pirizadeh M, Shakib H (2019) On a reliability-based method to improve the seismic performance of midrise steel moment resisting frame setback buildings. International Journal of Steel Structures 19:58–70, DOI: https://doi.org/10.1007/s13296-018-0086-y
Qiu SH, Ye LP, Pei XZ (2010) Seismic design of building structures based on energy balance. Tsinghua University Press, Beijing, China, 41–44
Wang H, Xiao CZ, Xu ZG, Li JH (2014) Influence of setback on the seismic performance of frame structures and study of limiting method. Proceedings of the 4th International Conference on Seismic Technology of Building Structures, September 26–27, Nanjing, Jiangsu, China
Yan F (2021) Structural design of a super high-rise and façade asymmetric narrowing tower. Progress in Steel Building Structures 23(6):84–92, DOI: https://doi.org/10.13969/j.cnki.cn31-1893.2021.06.011
Yang WT, Chen CH, Chen HK, Ma L, Cao JZ (2019) Shaking table test study on a super high-rise frame-core building with set-back. Building Science 35(5):65–69, DOI: https://doi.org/10.13614/j.cnki.11-1962/tu.2019.05.010
Zhao Q, Qiu J, Zhao Y, Yu C (2022) Performance-based seismic design of corrugated steel plate shear walls. KSCE Journal of Civil Engineering 26(8):3486–3503, DOI: https://doi.org/10.1007/s12205-022-1188-9
Acknowledgments
This work was supported by Hebei Provincial Education Department Basic Research Business Fund Excellent Innovation Team Project (2022CXTD02), Doctoral Research Start-up Fund of Hebei University of Architecture (B-201808), Innovation Fund Project of Hebei University of Architecture (XY202107 and XY202205).
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Hao, Y., Chen, F., Han, Yh. et al. Study on the Seismic Optimization Scheme of Steel Bundled-Tube Structure with Vertical Setback. KSCE J Civ Eng 28, 732–743 (2024). https://doi.org/10.1007/s12205-023-2179-1
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DOI: https://doi.org/10.1007/s12205-023-2179-1