Seismic response of steel moment frame considering gravity system and column base flexibility

P. Torres-Rodas, F. Flores, F. Zareian

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

9 Citas (Scopus)

Resumen

High ductility and architectural versatility characteristics make Steel Moment Frames (SMF) one of the most commonly used lateral resisting systems for building structures. Collapse assessment of such buildings are typically suffering from two modeling simplifications: 1) neglecting the gravity system model, and 2) neglecting column base flexibility by using idealized boundary conditions (i.e. fix or pin). This study assesses the seismic performance of an 8-Story SMF and takes into consideration the effects of the column-base flexibility and the inclusion of the gravity system in such assessment. The flexibility of the column-base connection is included by aggregating deformations of various components of the base connection while the gravity system is included by taken into consideration the continuous stiffness provided by the gravity columns. Nonlinear dynamic response history analysis using design level ground motions was used to compare the influence of the different properties on the story drifts and residual displacements. Moreover, using the FEMA P-695 methodology, the influence of these modeling simplifications on the collapse performance is established. Previous research indicates that the flexibility of column bases has a detrimental effect on the building's seismic performance. However, the positive effects that considering the gravity system brings evens out in the seismic behavior of the structure.

Idioma originalInglés
Título de la publicación alojada11th National Conference on Earthquake Engineering 2018, NCEE 2018
Subtítulo de la publicación alojadaIntegrating Science, Engineering, and Policy
EditorialEarthquake Engineering Research Institute
Páginas7383-7393
Número de páginas11
ISBN (versión digital)9781510873254
EstadoPublicada - 2018
Publicado de forma externa
Evento11th National Conference on Earthquake Engineering 2018: Integrating Science, Engineering, and Policy, NCEE 2018 - Los Angeles, Estados Unidos
Duración: 25 jun. 201829 jun. 2018

Serie de la publicación

Nombre11th National Conference on Earthquake Engineering 2018, NCEE 2018: Integrating Science, Engineering, and Policy
Volumen12

Conferencia

Conferencia11th National Conference on Earthquake Engineering 2018: Integrating Science, Engineering, and Policy, NCEE 2018
País/TerritorioEstados Unidos
CiudadLos Angeles
Período25/06/1829/06/18

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