Name: LUCAS DEPOLLO FERREIRA
Type: MSc dissertation
Publication date: 29/08/2019
Advisor:
Name |
Role |
|---|---|
| WALNÓRIO GRAÇA FERREIRA | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| RODRIGO SILVEIRA CAMARGO | Internal Examiner * |
| WALNÓRIO GRAÇA FERREIRA | Advisor * |
Summary: Despite being located in the middle of the stable South American tectonic plate, Brazil is
a seismically active country. The effects of seismic actions cannot be ignored in structural
designs and the Brazilian standard NBR15421:2006 regulates the procedures for the
dynamic analysis of structures in order to establish verification parameters for possible
earthquake occurrences in the Brazilian territory. This work presents a review of the basic
and fundamental concepts of seismic waves and quakes to understand the seismological
factors involved in an earthquake. It also presents concepts of structural dynamics necessary
to understand the different methods presented in the design codes, including the definition of
the necessary parameters to perform the referred analysis. The definition of the parameters
and the seismic analysis methods are reviewed in the Brazilian (NBR15421:2006), American
(ASCE 7-16) and European (EN 1998-1:2004) design codes, comparing their procedures
and values used in their procedures. The main objective of this work are the seismic
analysis of three structural systems in reinforced concrete. The first one consists of an
inverted pendulum structure, the second with a 3-storey Shear Building, and consequently
3 degrees of freedom, and the third being the seismic analysis of a 12-storey building on a
three dimensional model with computational aid. These structures are analyzed by the
Simplified Method, Equivalent Horizontal Forces Method, Spectral Method and Time
History Method (Direct Integration), with the help of computational softwares to obtain
the necessary data to perform the dynamic analysis, according to the standards presented
in this work.
Keywords: Seismic analysis. Structures. Reinforced concrete. Normative Aspects. Dynamic
analysis. Vibrations.
