دانلود رایگان مقاله انگلیسی پیشرفت جدید و کاربردها در اتلاف انرژی لرزه ای و کنترل سازه ها در چین - اشپرینگر 2018

Abstract:

China is a country where 100% of the territory is located in a seismic zone. Most of the strong earthquakes are over prediction. Most fatalities are caused by structural collapse. Earthquakes not only cause severe damage to structures, but can also damage non-structural elements on and inside of facilities. This can halt city life, and disrupt hospitals, airports, bridges, power plants, and other infrastructure. Designers need to use new techniques to protect structures and facilities inside. Isolation, energy dissipation and, control systems are more and more widely used in recent years in China. Currently, there are nearly 6,500 structures with isolation and about 3,000 structures with passive energy dissipation or hybrid control in China. The mitigation techniques are applied to structures like residential buildings, large or complex structures, bridges, underwater tunnels, historical or cultural relic sites, and industrial facilities, and are used for retrofi tting of existed structures. This paper introduces design rules and some new and innovative devices for seismic isolation, energy dissipation and hybrid control for civil and industrial structures. This paper also discusses the development trends for seismic resistance, seismic isolation, passive and active control techniques for the future in China and in the world.

7 Conclusion

Damage prevention and resiliency in structures has become the goal for seismic design of buildings structures; seismic isolation, energy dissipation and structural control have become the best options at present in China. There are many advantages for seismic isolation, energy dissipation and structural control including: ● Increased safe, even in earthquakes with magnitudes higher than design intensities. ● Increased effective protection for both structures and facilities inside of the structure during earthquakes. ● It is more effective to k eep superstructures in their elastic range in an earthquake. ● It is more economical and inexpensive to include, only adding about 5-10% of the structural cost. ● More Satisfi ed for irregular architectural design for anti-seismic or wind load. So, it could be said that in the coming years: ● Traditional fi xed-based structures will remain the main type of structural system. ● Seismic isolation, energy dissipation, and structural control will be the main systems for seismicly designed structures, and will be more widely used in the coming years in China.