دانلود رایگان مقاله انگلیسی پیشرفت سازه های فولادی و مواد فولادی در ژاپن - وایلی 2017

Abstract:

There are around six hundred thousand buildings that are built every year in Japan, and approximately 40% of them are constructed using steel frames. This wide application of steel frames is largely because of the continuing technological advancements in structural steel systems and steel materials for meeting a variety of needs that have evolved in the market. In this paper, starting with an overview of steel buildings in Japan, some of the advanced steel materials such as high-strength steels and seismic resistant steels are outlined with their backgrounds. Since the material advancements in Japan are largely motivated by frequent large earthquakes, the relations with seismic design are stressed throughout the paper.

8. Conclusions

This paper reviewed the advances in steel materials and structures in Japan, focusing on steel buildings. It was seen that new design methodologies and structural systems have enabled progress in steel materials, and in turn, an innovation in steel materials has given birth to further advances in steel structures. For steel buildings, new seismic designs have led to seismic-resistant steels, realising high-rise buildings in extremely earthquake-prone regions.

The various types of steels covered in this paper included high-strength steel plates with TS values of 600 to 1,000 N/mm2 , SHTBs with a TS of 1,400 N/mm2 , seismic-resistant steels with an upper limit for YR and a narrow range of YS, and low strength steels for seismicenergy absorption dampers for new structural systems. It was shown through a comparison among various materials that steel materials still have high potential for further improvements in performance, which would contribute to the growing global market.