###### Abstract  
This research aims to apply the displacement-based design method (DBDM) for the seismic design of reinforced concrete-coupled shear wall buildings equipped with energy dissipation dampers. The DBDM offers design simplicity by focusing on structural design based on a target design displacement, where the building converts into a single degree of freedom (SDOF) system. The implementation of dampers aims to reduce repair costs and downtime for buildings following significant seismic events. Two types of dampers are utilized in this study: metallic damper and viscoelastic damper. The DBDM procedure begins with determining the target displacement, which corresponds to the specific story drift ratio of the structural system, using a nonlinear static pushover analysis. For the structural wall system considered in this study, a target drift ratio of 1/250 is selected due to the inherent rigidity of the structure. The effective damping factor is then determined from the average energy absorption, which is based on the ductility factor of each structural member. Additionally, the effective period of the building is obtained from the displacement spectrum of the design-level earthquakes. Finally, the required damper shear capacity for the SDOF system is calculated based on the target deformation and effective stiffness. The design earthquakes are generated from the acceleration response spectrum for Level 2 earthquakes, as specified in the Japanese seismic code, utilizing three different sets of phase information: Kobe, El Centro, and random phase records. The effectiveness of the DBDM is scrutinized through a comparison with results obtained from time history analysis. The results obtained for 6-, 12-, and 18-story RC-coupled shear walls with energy dissipation dampers indicate that the proposed design methodology effectively meets the specified design objectives. coupled shear wall; seismic design; displacement-based design method; metallic damper; viscoelastic damper +
Footnote †: journal: Applied sciences  
(SDOF) system. The anticipated dissipation of energy from the inelastic deformation of the structure is accounted for by diminishing displacement demand spectrum through the application of a reduction factor derived from effective damping. In the DBDM, the crucial final step is a capacity design, which aims to ensure that inelastic action is confined to intended locations, preventing unintended plastic hinges from occurring elsewhere. Generally, the seismic assessment and design of structures equipped with damping devices require nonlinear time history analysis (THA), which is highly time-consuming. The DBDM is a more direct method that can be applied to simplified design processes that being proposed by researchers to evaluate the seismic performance of passively controlled buildings. The improvised DBDM system proposed by [PERSON] by adopting a rocking wall system with additional damper design methodology is effective and can be confidently applied to structures up to 20 stories high [4]. [PERSON] proposed an efficient DBDM approach that is in accordance with the Chinese seismic design principle by establishing a relationship between the effective damping and structural period of the viscoelastic damper structural system [5]. [PERSON] proposed a simplified DBDM by using the SDOF system that represents a damped structure by integrating the viscoelastic damper strain and stiffness ratio of the damper to the main structure to achieve predefined target performance [6]. [PERSON] and [PERSON] evaluate cost efficiency using the DBDM approach for damage-controlled structure using the best combination of stiffness and strength ratios between a main structure and an added hysteresis energy dissipation system to achieve optimum performance [7]. Metallic dampers are widely recognized as effective mechanisms for dissipating seismic energy in structures during earthquakes, primarily through the inelastic deformation of metallic materials [8].