This research explores the design of self-sustaining military hospitals with a focus on passive defense principles, specifically in the context of Mazandaran Province, Iran. The unique geographical location of Mazandaran, combined with its susceptibility to various natural disasters and potential military threats, makes it an ideal region for studying the design of resilient, self-sustaining medical infrastructures. Military hospitals play a crucial role in maintaining the health and safety of the population during periods of crisis, and therefore, their design must ensure continued functionality even under extreme conditions. This study aims to investigate how self-sustaining features, combined with passive defense strategies, can be effectively integrated into the architectural design of military hospitals, ensuring that they remain operational in the face of natural and man-made threats, including warfare, earthquakes, and other disasters.
The research objectives are threefold: (1) to analyze the architectural design principles necessary for creating self-sustaining military hospitals, (2) to assess the role of passive defense in enhancing the resilience and operational continuity of these hospitals, and (3) to identify practical guidelines for implementing such designs in regions vulnerable to various forms of disruption. A qualitative research approach was adopted, utilizing both document analysis and field studies. Data were collected through a comprehensive review of existing literature, analysis of architectural blueprints from similar hospitals, and interviews with experts in the fields of military architecture, disaster management, and passive defense.
The findings suggest that incorporating self-sustaining features such as renewable energy systems, water storage, and the use of sustainable materials significantly improves the hospital's ability to remain functional during prolonged disruptions. The integration of passive defense principles—designed to reduce vulnerability to attacks, natural disasters, and other threats—also plays a pivotal role in ensuring the hospital’s durability and ability to function in high-risk environments. Key elements of self-sustaining design include the use of solar panels, wind energy systems, and emergency backup power sources, as well as the incorporation of rainwater harvesting systems and the use of resilient building materials that can withstand earthquakes, bomb attacks, and other potential threats.

Another important finding of this research is the strategic importance of hospital location and site selection. Hospitals must be situated in areas that are not only safe from direct threats but also easily accessible during emergencies. This study emphasizes the need for location planning that takes into account both physical security (such as distance from potential attack zones) and operational efficiency (such as proximity to transportation networks, utilities, and local resources). Moreover, the research highlights the potential benefits of using local materials and resources to support the hospital's construction and daily operations. This approach not only reduces dependency on external supply chains but also strengthens the local economy and ensures that the hospital can continue functioning even if traditional supply lines are disrupted.

The integration of passive defense strategies into the design of military hospitals involves a range of considerations, including structural fortifications, access control measures, and design elements that allow the hospital to continue functioning under attack or after a natural disaster. The use of blast-resistant materials, fortified walls, and other protective design elements ensures that the hospital can withstand physical threats. Additionally, careful consideration must be given to the layout and design of internal spaces to facilitate the quick and efficient treatment of patients in an emergency, while also ensuring that the hospital remains operational under challenging circumstances.

Through a comparative analysis of international case studies and local examples, the study demonstrates the effectiveness of these design strategies in enhancing the resilience and sustainability of military hospitals. The research also outlines the practical challenges and limitations faced by architects and planners when designing such facilities, including budget constraints, local building codes, and the availability of materials. Despite these challenges, the research concludes that integrating self-sustaining features and passive defense principles into military hospital designs is not only feasible but essential for ensuring the hospital’s long-term viability and operational capacity in times of crisis.

The findings of this research have broader implications for the design and planning of other critical infrastructure projects, particularly in regions prone to natural disasters, political instability, or military conflict. The study provides a comprehensive framework for understanding how self-sustaining, resilient hospital designs can be developed and implemented in a wide range of contexts. The research also calls for the establishment of clear guidelines and standards for the integration of passive defense principles in hospital design, with a focus on enhancing both the operational continuity and safety of medical facilities in crisis situations.

In conclusion, the research underscores the critical need for innovative and resilient designs for military hospitals, particularly in regions with high vulnerability to both natural and man-made threats. By focusing on self-sustaining design and passive defense, this study provides valuable insights into how military hospitals can be better prepared to continue their essential functions during times of crisis. The results of this research can serve as a model for the development of other vital infrastructures, helping to ensure their survival and functionality in the most extreme conditions.