Seismic Resistance in Public Buildings: A Comprehensive Upgrade from Regulations to Practice

When the first rays of morning sunlight bathe the campus, or when the lights in the emergency room remain bright late into the night, public buildings serve not only as physical spaces but also as the cornerstone of society’s functioning and a shield for people’s lives. Hospitals and schools, as the most typical examples of public buildings, have seismic resilience that directly determines whether vulnerable populations can be protected to the greatest extent possible and basic social functions maintained when disaster strikes. In recent years, from increasingly stringent national regulations to the continuous refinement of engineering practices, the seismic safety of public buildings in China has been undergoing a comprehensive upgrade—from top-level design to on-the-ground implementation.

The starting point of this upgrade is undoubtedly the continuous improvement and specialization of the regulatory framework. Early seismic design codes for buildings were largely general in nature. However, for special public buildings such as hospitals and schools—given their functional complexity, high occupancy density, and the necessity for continuous operation after a disaster—more precise and stringent standards are required. Today, regulations such as the “Regulations on Seismic Management of Building Projects” explicitly classify these buildings as “Class B” structures—that is, buildings requiring enhanced seismic protection—whose seismic design standards must exceed those of general buildings in the same region. This means that, during the design phase, higher seismic motion parameters must be considered, and more detailed structural analyses must be conducted. Specialized regulations not only focus on the structural integrity of the building’s main structure but also mandate the inclusion of lifeline systems and non-structural components in the design. For example, the anchoring and connections of surgical equipment in hospital operating rooms, intensive care units, and oxygen pipeline systems, as well as large bookcases in school laboratories and libraries, must all meet seismic requirements to prevent secondary injuries. The specialization of these regulations has established an uncompromising baseline for seismic safety in public buildings.

However, even the most comprehensive regulations cannot translate into real-world safety if they remain merely on paper. The transition from regulation to practice relies on the coordinated upgrading of the entire chain—from design philosophy and technical application to construction quality. At the design level, the concept of performance-based seismic design is becoming increasingly widespread. Designers no longer settle for the basic goal of “surviving a major earthquake”; instead, they set higher performance targets—such as “repairable after a major earthquake” and “operational during a moderate earthquake”—for critical functional areas like hospital operating rooms, emergency departments, and school classrooms. This shift has driven design away from traditional uniform reinforcement toward differentiated, refined seismic design tailored to different functional zones within a building. For example, the adoption of base isolation technology has become a key practice for enhancing the seismic performance of public buildings. Installing seismic isolation bearings at the base or between floors of hospital buildings is akin to fitting the structure with “skates.” This effectively dissipates seismic energy, significantly reduces the seismic response of the superstructure, and ensures that precision medical equipment remains operational and surgeries are not interrupted. In school buildings, the application of seismic isolation technology also maximizes student evacuation safety and preserves the campus’s function as an emergency shelter after an earthquake.

Technological innovation is equally evident in building materials and construction methods. The widespread use of high-strength reinforcing bars and high-performance concrete has improved the ductility and energy-dissipation capacity of structural members. Energy-dissipating devices, such as metal dampers and buckling-restrained braces, are integrated into building structures—much like “car shock absorbers”—to actively absorb seismic energy. These technologies are being gradually implemented across a wide range of facilities—from large tertiary hospitals to county-level central hospitals, and from key urban schools to boarding schools in rural townships. Another key aspect of this practical advancement lies in quality control throughout the entire lifecycle. This encompasses strict scrutiny during the construction drawing review phase, on-site supervision and testing of seismic structural measures (such as the reinforcement densification zones at beam-column joints) during construction, and regular seismic assessments and retrofitting after completion, forming a closed-loop management system. In particular, large-scale seismic retrofitting projects are being continuously carried out for existing public buildings constructed earlier in the era when seismic standards were inadequate. Through methods such as adding shear walls and steel-wrapping reinforcement, these projects address the safety “shortcomings” of these structures.

From mandatory regulatory requirements to the comprehensive deepening of practices in design, technology, construction, and management, the enhancement of seismic resilience in public buildings constitutes a systematic chain of interconnected processes. It embodies a shift in development philosophy: from a sole pursuit of construction scale and speed to a greater emphasis on the value of human life and urban resilience. Every revision to regulatory provisions, every implementation of seismic isolation technology, and every reinforcement project for school buildings or hospitals serves as a silent testament to the principle of “putting people first, putting life first.” Looking ahead, as technologies such as smart sensing and health monitoring become deeply integrated with seismic resistance and disaster prevention, the seismic safety of public buildings will enter a new phase characterized by greater intelligence and proactivity. Yet no matter how technology evolves, its core remains unchanged—ensuring that hospitals serve as sturdy bastions of life amid any turmoil, and that schools remain the safest havens for children through any storm. The creation of this sense of security is the most solid and heartwarming foundation of modern social governance.