Seismic Evaluation of the Diagrid Structural System Configured Around the Perimeter Against a System of Structural Walls with Frames

Sanchez J.J.T.; Alcantara L.A.V.; Morejon I.Y.P.; Tolentino E.O.G. · SSRG International Journal of Civil Engineering (2026) · DOI: 10.14445/23488352/ijce-v13i6p122

Resumen

The objective of this research is to evaluate and compare the seismic performance of a perimeter-configuration Diagrid structural system against a conventional structural system consisting of concrete walls and frames, intended for common-use buildings with square and rectangular floor plans, located in the coastal city of Lima, Peru. Considering the high seismic hazard that characterizes the Peruvian coast, there is a need to analyze and propose more efficient structural systems that improve the response of buildings to seismic events. As a response to this problem, the implementation of the Diagrid structural system around the perimeter of the structures is proposed, due to its greater efficiency in resisting seismic forces. The Diagrid structural system was compared with conventional systems using linear dynamic seismic computational analysis to contrast seismic behavior, using the following indicators: fundamental vibration periods, lateral displacements, inter-story drifts, and internal forces. The results show that the Diagrid structural system, in the proposed configurations, presents better results in seismic analysis, registering a reduction of more than 30% in fundamental vibration periods, an approximate decrease of 50% in lateral displacements, and a 70% reduction in interstory drifts compared to conventional systems.

Instituciones: Universidad Nacional de Ingeniería; Universidad Continental