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Nch2369 earthquake resistant design of industrial facilities, provisions for wind farms
Indexado
Scopus SCOPUS_ID:85085561609
DOI
Año 2018
Tipo

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



In Chile, during the last two and a half years, the NCh2369 standard (Seismic Design of Industrial Buildings) was revised and a new draft has been proposed. The aim was to reflect the observed behavior of the designs of different types of structures under the effects of the Mw = 8.8 earthquake of February 27, 2010 in the region of Central-South Chile. As part of this update, a chapter with requirements for electric power generation facilities was developed, which includes specific provisions for the design of wind farms. The newly developed provisions include the requirement to consider the behavior of the complete system: Foundation, anchorage system, turbine support structure, and the most critical components of the equipment including the connections between the components (blades, hub, rotor, generator, etc.). The provisions consider an appropriate interaction with the design standards that are most widely used in the industry for this type of equipment (GL2010, IEC61400) and the main objective of the code provisions (stated explicitly in the text) is to obtain an adequate seismic behavior of the system for an event that corresponds to the level of the design earthquake. It is established, as a performance objective for the design level earthquake, that the system shall be able to resume normal operation in a limited time (not to exceed two weeks). Given the type of system considered and the characteristics of its components this means that the design must achieve to get essentially elastic behavior in which the elements that could suffer some level of damage must be easy to inspect and repair or replace. Values of the response modification coefficient R=2 or R=1 are defined for the cases of anchor systems with ductile behavior and those that are not.

Disciplinas de Investigación



WOS
Sin Disciplinas
Scopus
Sin Disciplinas
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Cruz, Ernesto Hombre EQCO - Chile
2 Valdivia, Dania Mujer Seismic Specialist - Chile

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Financiamiento



Fuente
Ministry of Housing

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Agradecimientos



Agradecimiento
In the large earthquake (Mw= 8.8) that affected the Central - South part of Chile in Feb. 27, 2010 a very significant number of Industrial Facilities were subjected to very strong ground motion. The effects of the earthquake in different types of Industrial Facilities have been rather extensively reported and studied [1, 2, 3, 4]. The "lessons learned" from the observed seismic behavior of the Industrial Facilities prompted an action from the earthquake engineering community in the country to prepare a new revision of the applicable seismic code, the NCh2369 [5], that was officially in place since 2003, but had been used in the profession at least since late in 2000. For this purpose in 2015 with funding from the Ministry of Housing and within a project organized by the Chilean Institute for Construction a Technical Committee was established. The committee was joined by a majority of well experienced practicing engineers

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