## 2 Literature Review  
In countries prone to frequent seismic activity, there is a growing trend of strengthening regulations that focus particularly on verifying the seismic performance of critical facilities and equipment, with an emphasis on social capital infrastructure. The goal of seismic performance validation for such facilities extends beyond ensuring structural integrity: it also aims to confirm the sustained functionality of systems in the aftermath of an earthquake. While the former can be verified through testing and analytical methods, the latter is commonly known to be efficiently validated through testing procedures [15; 16; 17]. In March 2019, the Republic of Korea revised its Architectural Seismic Design Standards (KDS 41 17 00) [18], specifying the requirement to substantiate the seismic performance of key non-structural elements for which functionality must be maintained post-earthquake. Nuclear power plants require rigorous verification of seismic performance for vital safety-related equipment. In the case of broadcasting and telecommunication facilities, the seismic testing methods prescribe vibration testing or analysis to validate the fundamental seismic design [19]. These regulatory measures underscore the commitment to ensuring the resilience of critical infrastructure in the face of seismic events, employing a combination of testing and analytical approaches tailored to the specific needs of different types of structures and facilities. The recently proposed ICC-ES AC 156 testing method has been chosen as one of the specialized seismic performance verification methods for the aforementioned non-structural elements. This method is universally applicable and allows for the presentation of seismic loads that satisfy domestic seismic design standards [20]. Specifically designed for the seismic performance verification of common non-structural elements, this testing method systematically organizes and presents vibration table equipment procedures and methods by referencing design standards such as ASCE 7-16 [21] and testing specifications such as FEMA 461 [22] and IEEE Std 344 [23]. The studies introduced below have evaluated the seismic performance of non-structural elements belonging to the same category as the target structure in this research. These evaluations were conducted through shaking table testing and analytical verification procedures following ICC-ES AC 156. This body of studies served as foundational reference material for conducting the present study. [PERSON] (2019) conducted shaking table testing to provide an effective method for realistically evaluating the seismic performance of non-structural components (e.g., ceilings, pipe supports and hangers, and glass screen walls). During shaking table testing, non-structural components are sensitive to the floor motion of the supporting frame to which they are attached. To address the need for accurate measurement methods in response to this sensitivity, a control method was proposed. Following this approach, the dynamic coupling between the supporting frame and the shaking table was overcome. The method allowed for accurate reproduction of response spectra in multiple directions, verifying the seismic performance [24]. [PERSON] (2012) conducted seismic performance evaluations of water-based fire protection systems (general piping, seismic-resistant piping, pumps, etc.) through shaking table tests. To investigate the dynamic response characteristics of the target non-structural components, El-Centro earthquake waves at 50%, 70%, 100%, and 120% amplitude levels were applied. The test results verified, through shaking table testing, that seismic-resistant facilities exhibit better seismic performance compared to conventional facilities, as evidenced by larger displacement and acceleration responses in the conventional facilities.