## 6 Discussion on the Results
### Future Research Directions and Code Integration Potential  
The current investigation validates the seismic efficacy of the ACPH system under dynamic conditions through sophisticated nonlinear simulations, yet additional research is imperative for broader recognition and integration into design methodologies. The numerical outcomes highlighted in this study necessitate corroboration via extensive experimental assessments on complete precast frame systems that incorporate ACPH subassemblies. Specifically, shake table experiments are essential to discern higher-mode influences, torsional requirements, and cumulative inelastic deformation, thereby evaluating the practical performance of the hinge during multi-directional seismic events.  
Beyond dynamic evaluations, focused research on low-cycle fatigue, strain-rate responsiveness, and corrosion resistance is crucial for determining the ACPH system's long-term durability and operational characteristics. Such investigations would contribute to establishing benchmarks for component replacement, anchorage detailing, and protective measures, especially in exterior or industrial contexts.  
For the ACPH system to be incorporated into established building regulations and performance-based design criteria, it must satisfy the validation standards specified in frameworks like FEMA P-695 [45]. These documents outline essential performance parameters concerning hysteretic stability, predictability of failure mechanisms, and measurable deformation capacities, all of which require validation through a synthesis of experimental and numerical data. Given its capacity for replaceability and localization of inelastic behavior, the ACPH system holds potential alignment with resilience-based design approaches, such as those articulated in FEMA P-58 [5], which prioritize post-disaster recoverability and repairaability of components within seismic performance outcomes. To achieve a regulatory framework for adoption, a thorough design protocol must be established, incorporating standardized geometries, specifications for steel grades, hinge-to-beam capacity ratios, and detailing constraints. The findings of the present study supply a rigorously calibrated numerical basis to support such standardization initiatives, concurrently identifying critical behavioral indicators that should be emphasized in forthcoming testing and code development efforts.  
This study assesses four unique frame configurations to represent geometric variation in vertical and horizontal dimensions, recognizing that additional parametric analyses would enhance the generalizability of the results and aid in formulating prescriptive design guidance for the ACPH system. Subsequent studies will concentrate on methodically altering beam and column dimensions, material strength classifications for both reinforced concrete components and steel plates, beam spans, column heights, and hinge placement offsets to assess the impact of each variable on structural performance.  
These studies will facilitate the creation of a design matrix for optimizing ACPH installation, including the selection of plate thickness, steel grade, and connection position predicated on demand-to-capacity ratios and seismic intensity levels. The results of this research provide a core framework, validating the efficacy of ACPH across various frame geometries and illustrating its potential as a scalable and robust retrofitting technique.