Thesis EVALUACIÓN DEL DISEÑO SISMICO DE UN ESTADIO
Date
2016
Authors
FLORES SEPULVEDA, CAMILO ANDRES
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Abstract
En la práctica profesional se emplea un método de diseño sísmico basado en fuerzas. Conlas fuerzas provenientes del análisis se da resistencia y rigidez a los elementos. Paraedificios de hormigón armado el ACI318 contiene disposiciones para dotar de ductilidadespecialmente a los elementos que forman parte de marcos. Para lograr un comportamientosísmico adecuado es fundamental conocer el posible mecanismo de colapso y diseñarcuidadosamente las zonas críticas dejando el resto de la estructura respondiendo dentrodel rango lineal.En el terremoto de 2010, un estadio en Viña del Mar quedó dañado. En un proyecto derefuerzo no se identificaron las zonas frágiles ni los modos de falla.En esta memoria se evalúa el diseño de la nueva estructura que la reemplazó, se estima lacapacidad de deformación de la estructura y se detecta el posible modo de falla. Se revisael proyecto de acuerdo a las normas vigentes, mediante un análisis incremental se estimala capacidad de deformación y se identifican las zonas críticas.Utilizando las dos componentes del registro de Viña del Mar Centro del terremoto del 27 defebrero de 2010, que es el registro más cercano al estadio, se estimarán las demandas dedeformación y los posibles daños que pudieran ocurrir.Se concluye que la estructura estudiada produce una falla en la dirección radial a undesplazamiento lateral a nivel de la columna más alta de 0.65% relativo, con la falla parcialde la estructura. La demanda esperada con el registro de la estación Viña del Mar Centrodel terremoto del 2010 es de 0.09% relativo y la demanda de desplazamiento máximaestimada es de 0.31% con el registro de Constitución. Mientras que en dirección tangencialla falla ocurre a un desplazamiento lateral de 1.8% relativo a la columna más alta, lademanda esperada para el registro de Viña del Mar es de 1.4%, y la máxima esperada esde 2% para el registro de Constitución, lo que podría causar la falla de la estructura.
In the professional practice a method based on seismic design forces is used. With theforces from the analysis, strength and stiffness are given to the elements. For reinforcedconcrete buildings the ACI318 contains provisions to provide ductility especially theelements that are part of frames. To achieve adequate seismic behavior is essential to knowthe possible collapse mechanism and carefully designing the critical areas leaving the restof the structure within the linear response range. In the 2010 earthquake, a stadium in Viña del Mar was damaged. In a project to strengthen,the fragile areas or failure modes they were not identified.In this thesis, the design of the new structure that replaced it is evaluated, the deformationcapacity of the structure is estimated and possible failure mode is detected. The project isreviewed according to current standards and by an incremental analysis the deformationcapacity is estimated and critical areas are identify.Using the two components of the Viña del Mar Centro station record from the earthquake inFebruary 27 of 2010, which is the closest record to the stadium, the deformation demandare estimated and the possible damage that may occur.It is concluded that the studied structure reaches the failure in the radial direction to 0.65%of lateral displacement relative to the level of the highest column, with the partial failure ofthe structure. The expected demand with the Viña del Mar Centro station record of the 2010earthquake is 0.09% relative to highest column and the maximum demand estimated is0.31% with the Constitution record. While in the tangential direction the failure occurs to alateral displacement of 1.8% relative to the highest column, the expected demand with theViña del Mar Centro station record is 1.4% and the expected maximum is 2% for recordingConstitution, which could cause failure of the structure.
In the professional practice a method based on seismic design forces is used. With theforces from the analysis, strength and stiffness are given to the elements. For reinforcedconcrete buildings the ACI318 contains provisions to provide ductility especially theelements that are part of frames. To achieve adequate seismic behavior is essential to knowthe possible collapse mechanism and carefully designing the critical areas leaving the restof the structure within the linear response range. In the 2010 earthquake, a stadium in Viña del Mar was damaged. In a project to strengthen,the fragile areas or failure modes they were not identified.In this thesis, the design of the new structure that replaced it is evaluated, the deformationcapacity of the structure is estimated and possible failure mode is detected. The project isreviewed according to current standards and by an incremental analysis the deformationcapacity is estimated and critical areas are identify.Using the two components of the Viña del Mar Centro station record from the earthquake inFebruary 27 of 2010, which is the closest record to the stadium, the deformation demandare estimated and the possible damage that may occur.It is concluded that the studied structure reaches the failure in the radial direction to 0.65%of lateral displacement relative to the level of the highest column, with the partial failure ofthe structure. The expected demand with the Viña del Mar Centro station record of the 2010earthquake is 0.09% relative to highest column and the maximum demand estimated is0.31% with the Constitution record. While in the tangential direction the failure occurs to alateral displacement of 1.8% relative to the highest column, the expected demand with theViña del Mar Centro station record is 1.4% and the expected maximum is 2% for recordingConstitution, which could cause failure of the structure.
Description
Catalogado desde la version PDF de la tesis.
Keywords
DISENO SISMICO , ESTADIO , HORMIGON ARMADO , SISMOS