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The spring-based vibration isolation system for the turbine generator foundation of the HPR1000 has achieved independent domestic supply.
Recently, the spring‑based vibration isolation system for the turbine‑generator foundation of Unit 3 in Phase II of the San’ao Nuclear Power Plant in Zhejiang, operated by China General Nuclear Power Group, has successfully passed its factory‑level joint acceptance and has been shipped to the site for installation and commissioning. This marks the first time such a system has been supplied domestically, signifying that China has achieved technological self‑reliance and controllability in the field of foundation vibration isolation for nuclear power turbine‑generator sets.
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2026
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What are the special and key fortification buildings?
Buildings shall be divided into four seismic fortification categories, namely, special fortification category, key fortification category, standard fortification category and moderate fortification category, according to the importance of their use functions.
05
2024
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What does earthquake engineering include?
Seismic hazard analysis and seismic zoning: earthquake hazard prediction, seismic regional intensity division, seismic hazard analysis, urban seismic planning, rescue and relief measures, post earthquake recovery and reconstruction, etc. 2. Seismic technology of building structures: ensure the seismic safety of various industrial and civil buildings, lifeline engineering (water supply, power supply, gas, heating, communication, radio and television, roads, bridges, railways, airports, ports, grain warehouses, emergency hospitals, etc.) related engineering structures, various important buildings or important engineering structures, including the transformation or improvement of old buildings with insufficient seismic resistance, It also includes the seismic design and construction of new building structures.
10
Traditional buildings are always "hard pressed" to cope with over fortification earthquakes? What is an over - fortified earthquake?
Overfortification does not occur only in the event of a large earthquake (the fortification areas of 6 and 7 degrees in our country account for 82% of the land area). Taking a relatively small earthquake as an example, at 22:55 on June 17, 2019, the Changning earthquake in Yibin, Sichuan, had a magnitude of 6.0, an epicenter intensity of 8 degrees, and the local fortification was 6 degrees, 8-6=2>0, which is also an over fortification earthquake;
09
Academician Zhou's wonderful speech at the publicity and implementation meeting of seismic mitigation and isolation technology in Xiong'an New Area
The anti-seismic work of construction projects is directly related to the safety of people's lives and property, as well as economic development and social stability. In order to promote the newly revised Regulations on the Administration of Earthquake Resistance of Construction Projects and the Notice on the Promotion and Application of Seismic Reduction and Isolation Technology in Housing Construction Projects, it is required to implement in Xiong'an New Area, promote the application of seismic reduction and isolation technology in Xiong'an New Area, and improve the anti-seismic and disaster prevention capacity of construction projects. The Planning and Construction Bureau of the New Area, together with the Emergency Management Bureau and the Earthquake Disaster Prevention Center, organized a publicity and implementation meeting on seismic mitigation and isolation technology on September 28, 2021.
Main seismic mitigation and isolation standards in China
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Keywords: pipe supports and hangers, hydraulic dampers, in-service inspection and maintenance, equipment vibration control, isolation, energy dissipation and shock absorption, electromechanical earthquake resistance