Performance-based plastic design in eccentrically braced frames equipped with mass dampers and with horizontal tie beams

Articles in Press

Authors

1 Assistant Professor, Department of Civil-Structural Engineering, Hakim Sabzevari University, Sabzevar, Iran

2 Associate Professor, Department of Civil Engineering, Hakim Sabzevari University, Sabzevar, Iran

3 Master of Science in Structural Engineering, Islamic Azad University, Neyshabur Branch

10.22034/ceej.2025.67899.2445

Abstract

Many countries have special regulations for designing buildings against earthquake loads. In these regulations, parameters such as site conditions, seismicity of the construction site, importance of the building, and type of building structure are influential factors. To consider these parameters in determining and distributing earthquake forces, special coefficients have been introduced, and the approach to these coefficients in different regulations is different. In most of these regulations, the calculation and distribution of base shear is based on elastic analysis. This problem does not consider the actual behavior of the structure under the influence of severe earthquakes. To improve this problem, a new method that considers the effect of the plastic behavior of the structure on the distribution of earthquake force in height is used in this paper. This method is called performance-based plastic design (PBPD). The main focus of this research is to investigate the performance of the eccentrically braced frames (EBF) with horizontal link beams considering tuned mass damper (TMD), whose lateral load distribution in its design is based on the Iranian Standard 2800 and the PBPD method. It should be noted that the design of the frames is based on the capacity method. The results show that in the frames designed by the PBPD method, the number of plastic hinges is more and the yielding is distributed in the height of the building.

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Journal of Civil and Environmental Engineering

Articles in Press, Accepted Manuscript
Available Online from 08 November 2025

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