Vibration Modeling and Simulation of Braced and Unbraced Steel Structure

  • Ratri Andinisari National Institute of Technology, Malang, East Java, Indonesia
  • Ester Priskasari National Institute of Technology, Malang, East Java, Indonesia
  • Vega Aditama National Institute of Technology Malang, East Java, Indonesia
  • Bambang Wedyantaji National Institute of Technology Malang, East Java, Indonesia
  • Rendy Adam Anggriawan National Institute of Technology Malang, East Java, Indonesia
DOI: https://doi.org/10.22225/jipe.2.1.2023.1-6
Keywords: Bracing, displacement, structural response, vibration

Abstract

Repeated dynamic loads on multiple stories structure may cause damage in the midst of natural disaster, such as earthquakes and landslides, hence it is necessary to observe how the response occurs. Therefore, this paper studies the performance of two-story steel frame without braces and with inverted V concentric braces. Both frames were given a static and a dynamic load in the form of a sinusoidal load for 2 seconds in the form of forced harmonic vibration. After the dynamic load is turned off, harmonic free vibration applies. Vibration is given to the weakest orthogonal axis on the frame with a frequency of 0,5 Hz; 1,03 Hz; 1.7 Hz. To reduce the deviation between stories that occur due to dynamic loads, bracing is provided as a stiffening element. The test variations are called models 1, 2 and 3 with model 1 unbraced frame and model 2 braced frame with the same load between floors, while model 3 unbraced frame model with weight 2nd floor is 3 times larger than 1st floor. It found that the braced frame has a minimum drift and its drift is enhanced with the increase of load capacity.

References

F. Stochino and G. Carta, “SDOF models for reinforced concrete beams under impulsive loads accounting for strain rate effects,†Nucl. Eng. Des., vol. 276, pp. 74–86, 2014, doi: 10.1016/j.nucengdes.2014.05.022.

A. Tahmasebi and M. Rahimi, “Evaluation of nonlinear static and dynamic analysis of steel braced frame buildings subjected to near-field earthquakes using FBD and DBD,†Structures, vol. 34, no. July, pp. 1364–1372, 2021, doi: 10.1016/j.istruc.2021.08.082.

I. P. E. Sarassantika and H. L. Hsu, “Improving brace member seismic performance with amplified-deformation lever-armed dampers,†J. Constr. Steel Res., vol. 192, no. August 2021, p. 107221, 2022, doi: 10.1016/j.jcsr.2022.107221.

P. Saingam, R. Matsuzaki, K. Nishikawa, B. Sitler, Y. Terazawa, and T. Takeuchi, “Experimental dynamic characterization of friction brace dampers and application to the seismic retrofit of RC buildings,†Eng. Struct., vol. 242, no. May, p. 112545, 2021, doi: 10.1016/j.engstruct.2021.112545.

I. P. E. Sarassantika and H. L. Hsu, “Upgrading framed structure seismic performance using steel Lever-Armed dampers in the Braces,†Eng. Struct., vol. 280, no. January, p. 115683, 2023, doi: 10.1016/j.engstruct.2023.115683.

R. Sulaksitaningrum et al., “The optimal damper placement configuration for three-dimensional RC building,†IOP Conf. Ser. Mater. Sci. Eng., vol. 669, no. 1, 2019, doi: 10.1088/1757-899X/669/1/012056.

S. N. Fathima and S. Road, “A Study on Tuned Mass Dampers on 10 Storey RC Framed Structures Using SAP-2000 Software,†pp. 59–65, 2022.

A. A. Abbas and D. M. Cotsovos, “Numerical investigation of the behaviour of RC wide beams under impact loads,†COMPDYN 2015 - 5th ECCOMAS Themat. Conf. Comput. Methods Struct. Dyn. Earthq. Eng., no. May 2017, pp. 2904–2914, 2015, doi: 10.7712/120115.3586.1135.

X. Chong, Y. F. Guo, J. Q. Huang, Q. Jiang, M. Zhao, and J. G. Dai, “Seismic performance of a steel frame structure with dissipative cladding connections,†J. Constr. Steel Res., vol. 197, no. October, pp. 9–11, 2022, doi: 10.1016/j.jcsr.2022.107508.

B. Fernandus and I. P. E. Sarassantika, “Reducing the torsional behavior in irregular special moment resisting frames with steel dampers,†vol. 1, no. 2, pp. 68–74, 2022.

B. Fu, Y. Gao, and W. Wang, “Dual generative adversarial networks for automated component layout design of steel frame-brace structures,†Autom. Constr., vol. 146, no. February, pp. 10–12, 2023, doi: 10.1016/j.autcon.2022.104661.

Z. Li, F. Chen, M. He, W. Long, J. Ou, and M. Li, “Experimental Investigation on Self-Centering Steel-Timber Hybrid Beam-Column Connections,†J. Struct. Eng., vol. 149, no. 3, pp. 1–17, 2023, doi: 10.1061/jsendh.steng-11570.

S. Zheng, X. Zhang, and X. Zhao, “Experimental investigation on seismic performance of corroded steel columns in offshore atmospheric environment,†Struct. Des. Tall Spec. Build., vol. 28, no. 4, pp. 1–17, 2019, doi: 10.1002/tal.1580.

Published
2023-06-30
Issue
Vol. 2 No. 1 (2023)
Section
Articles

Authors who publish with this journal agree to the following terms:

1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).

Abstract viewed = 136 times
PDF downloaded = 114 times