DiseƱo de muros de corte para el sistema plataforma en madera aserrada : propuesta para modificaciĆ³n norma NCH1198
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Fecha
2018
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Idioma
es
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Universidad AndrƩs Bello
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Licencia CC
Licencia CC
Resumen
La presente tesis tiene como objetivo el desarrollar una metodologĆa de diseƱo y
a la vez proponer un capĆtulo en la norma NCh1198 para diseƱar muros de corte
en madera aserrada para el sistema de plataforma.
Dentro de los sistemas constructivos en base a madera mĆ”s usados en paĆses
como Estados Unidos, CanadĆ”, JapĆ³n y Chile, se encuentra el sistema de
entramado ligero plataforma. Este sistema es utilizado por su capacidad sĆsmica
y tƩrmica, ademƔs de poseer flexibilidad al generar elementos prefabricados.
En los prĆ³ximos aƱos la norma NCh433 (DiseƱo sĆsmico de edificios) presentarĆ”
una actualizaciĆ³n.
Producto de ello, se desea llegar a construir edificios de cinco a seis pisos en
madera, generando como consecuencia que la estructura deba contar con el
respaldo tƩcnico para diseƱar muros de corte.
En Chile no existe ninguna metodologĆa que exponga sobre el diseƱo de muros
de corte en madera aserrada para el sistema de plataforma, por lo cual el objetivo
general de esta memoria es lograr una metodologĆa de diseƱo para este tipo de
estructura.
Para lograr este objetivo se utilizarĆ” como referencia la norma americana SDPWS
(Special Design Provisions for Wind & Seismic) ediciĆ³n 2015, la cual expone de
las verificaciones y condiciones de diseƱo que deben cumplir estos muros para
el caso sĆsmico y el caso de solicitaciones de viento.
Todas las verificaciones y requerimientos constructivos serƔn adaptados para ser
aplicados en Chile.
Se procede a realizar ejemplos mediante la metodologĆa obtenida para verificar
que se cumplan todos los requisitos que indica la norma SDPWS adaptada a la
realidad nacional.
The objective of this thesis is to develop a design methodology and at the same time to propose a chapter in the NCh1198 standard for designing shear walls in sawn timber for the platform-frame system. Within the most commonly used timber-based building systems in countries such as the United States, Canada, Japan and Chile, there is a lightweight platformframe system. This system is used for its seismic and thermal capacity and for its flexibility when generating prefabricated elements. In the coming years, the NCh433 (Seismic Design of Buildings) standard will present an update. Product of this, it is expected to get timber buildings of five to six floors, this brings consequently that this type of structures must have the technical support to shear walls design. In Chile there is no methodology that talks about the shear walls design in sawn wood for the platform-frame system, so the general objective of this report is to achieve a design methodology for this type of structure. To achieve this objective, the American standard SDPWS (Special Design Provisions for Wind & Seismic) 2015 edition is used as reference, which talks about the verifications and design conditions that these walls must meet for the seismic case and the case of the action of wind. All verifications and construction requirements will be adapted to be applied in Chile. We proceed to make examples using the methodology obtained to verify that they meet all the requirements indicated by the SDPWS standard adapted to the national reality.
The objective of this thesis is to develop a design methodology and at the same time to propose a chapter in the NCh1198 standard for designing shear walls in sawn timber for the platform-frame system. Within the most commonly used timber-based building systems in countries such as the United States, Canada, Japan and Chile, there is a lightweight platformframe system. This system is used for its seismic and thermal capacity and for its flexibility when generating prefabricated elements. In the coming years, the NCh433 (Seismic Design of Buildings) standard will present an update. Product of this, it is expected to get timber buildings of five to six floors, this brings consequently that this type of structures must have the technical support to shear walls design. In Chile there is no methodology that talks about the shear walls design in sawn wood for the platform-frame system, so the general objective of this report is to achieve a design methodology for this type of structure. To achieve this objective, the American standard SDPWS (Special Design Provisions for Wind & Seismic) 2015 edition is used as reference, which talks about the verifications and design conditions that these walls must meet for the seismic case and the case of the action of wind. All verifications and construction requirements will be adapted to be applied in Chile. We proceed to make examples using the methodology obtained to verify that they meet all the requirements indicated by the SDPWS standard adapted to the national reality.
Notas
Tesis (Ingeniero Civil)
Palabras clave
Muros, DiseƱo y ConstrucciĆ³n, Normas, Madera Aserrada