The study of welding requirements during construction and installation of seismic-resistant steel structures

In the last few decades, several horrible earthquakes have unfortunately caused irreparable damages in different parts of our country. The resulting pathology indicates that the damage to the steel structures is mainly due to insufficient resistance and failure in welding fittings. Therefore, extensive research has begun to study seismic behavior and ways to enhance welding fittings. Studies show that the Metallurgical properties of welding metals and the factors that influence the rate of energy absorption and crack growth in this area strongly influence the behavior of the critical fittings of structures. Factors such as solder geometry, weld metal and base metal specifications and welding technology can be mentioned. Given the lack of attention to these important details in the bylaws, the main purpose of this article is to review and compare the requirements of earthquake-resistant structural systems in modern international standards and research.

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