Estimation of the acceleration response of a building under earthquake excitation
This master thesis is included inside a project bigger. This project consist in predict the response of a building submitted an earthquake only measuring the first seconds of the earthquake. In order to do that, this big project is divided into small projects with different objectives. First, it is...
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| Formato: | tesis de maestría |
| Fecha de publicación: | 2018 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/169743 |
| Acesso em linha: | https://hdl.handle.net/2117/169743 |
| Access Level: | acceso abierto |
| Palavra-chave: | Earthquake resistant design Disseny antisísmic Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Sismologia |
| Resumo: | This master thesis is included inside a project bigger. This project consist in predict the response of a building submitted an earthquake only measuring the first seconds of the earthquake. In order to do that, this big project is divided into small projects with different objectives. First, it is necessary to predict all the earthquake using the first seconds of this earthquake. For do that, one member of the resilience lab of Taiwan has created a prediction model which using some data from the first seconds of an earthquake, estimate the rest of the earthquake. After that, it has to calculate the response of the prototype through any earthquake. With this objective, it has been created a finite element model of the prototype and it has been applied forty earthquakes. For each earthquake, it has been done a modal analysis and it has been obtained the acceleration response of the prototype. This acceleration has been used for calculate the transfer function which relates the acceleration that appears on each floor of the model with the acceleration applied on the base of the structure (the earthquake). In consequence, if a new earthquake happens, using the prediction model it is possible to calculate how big it will be the earthquake after only the first three seconds, and then, using the transfer function, it is possible to calculate the acceleration that will strike the complete structure. So, when a new earthquake appears, it is only needed the first three seconds to know the consequences of this earthquake in a building and, if it is necessary, it is possible to act in order to minimize the damages of the earthquake. The last part of the thesis is based in testing the methodology experimentally. The prototype of the building has been tested in the shaking table and the results has been compared with the results obtained with the finite element model. The objective of this last part is to know if it is possible to predict, with the same precision, the acceleration of a building only using a finite element model of that building than installing some sensors to the building and predict the acceleration using the record of the past earthquakes. |
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