This article addresses the problem of reconstructing the medieval Insterburg Castle, located in the Kaliningrad region of Russia. It examines the importance of preserving this cultural heritage site and proposes a variant for its adaptation to modern use. The conducted analysis includes a study of the castle's technical condition, an assessment of its reconstruction feasibility, and the development of proposals for its preservation and functional application. The article explores various approaches to reconstruction, including museumification and functional reinterpretation, as well as architectural and planning solutions based on the principles of imitation and contrast. Significant attention is given to the discussion of the need to combine historical heritage with contemporary elements to create a harmonious architectural image. A set of architectural and structural solutions is proposed for the reconstruction of Insterburg Castle: the installation of a glass dome on metal columns; the erection of external walls and the construction of an atrium with stained-glass glazing, which will give the structure a sense of lightness and aesthetic appeal while also reducing the load on the foundation; the strengthening of the historic wall structures; and addressing the foundation problem by introducing a stylobate that will connect the preserved castle walls with the new structures. These measures will ensure the structures work as a single unit, enhance the overall stability and reliability of the facility, and enable the transfer of loads to the pile foundation. The calculation section includes the determination of loadings and the definition of parameters for the sheet pile enclosure and the pile foundation. The proposed solutions are aimed at preserving the historical appearance of the castle, ensuring its functionality, and adapting it to modern operational conditions. These solutions are aimed at preserving the historical appearance of the castle, ensuring its functionality and adapting to modern operating conditions.
N. V. Rozantceva (Sun,) studied this question.