Energy-Absorbing Gusset of Steel Frame Bonds

Introduction. This study looks at the urgent problem of ensuring the seismic resistance of buildings and structures in areas with increased seismic activity. The aim of the study is a comprehensive analysis of existing methods of protection against seismic impacts and the development of innovative design solutions in order to increase the stability of buildings. The study is relevant due to the growing need to protect the population and infrastructure in seismically active regions around the globe.

Materials and Methods. Two major approaches to increasing seismic resistance were considered: the traditional method of increasing structural cross-sections and a special method of reducing load by means of changing the dynamic scheme of the structure. Special attention is paid to the development and analysis of the operation of the fastening unit of the frame using a curved thin-walled plate. Modern methods of mathematical modeling and computer analysis were employed. Research Results. Architectural, planning and constructive solutions for increasing the earthquake resistance of buildings were analyzed. The principles of designing earthquake-resistant buildings to minimize earthquake damage were formulated. The plastic properties of steel as an effective method of absorbing seismic energy were studied. Energyabsorbing devices are classified into five main types: rod-type, annular, tubular, beam-type and shear-type. The design features of energy absorbers, their advantages and disadvantages were thoroughly investigated.

Discussion and Conclusion. A finite element analysis of the stress-strain state of the fastening unit was conducted by means of the Stark ES software package. The results of the analysis enabled us to evaluate the efficiency of the suggested constructive solution. The practical importance of the study lies in the possibility of applying the developed solutions in the design and construction of earthquake-resistant buildings in areas of increased seismic activity. The suggested methods and designs make it possible to increase the stability of buildings, reduce metal consumption, and easy to replace elements if needed. The developed solutions can be scaled for use in different types of building structures and climatic conditions.

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