Seismic Assessment and Retrofitting of Existing Structures

Recommended Prerequisites

Linear Algebra, Mathematical Analysis, Numerical Analysis, Continuum Mechanics, Strength of Materials, Structural Analysis, Structural Dinamics.

Teaching Methods

The traditional blackboard lecture style is used for (1) the motivation and detailed exposition of the fundamental ideas, concepts and methods and (2) the application and illustration of the theory and available aproaches, by working through selected examples in detail. The student is then expected to solve, under the supervision of the instructor, a collection of systematically arranged problems; the aim is (1) to suggest to him useful lines of disciplined thought in dealing with more complex problems and (2) to promote his autonomy.

Learning Outcomes

After this curricular unit, students will be able to:

A) to identify the main seismic vulnerabilities of existing structures;

B) carry out seismic analyzes of existing structures with different approaches and degrees of complexity and assess the structural safety of these structures within the scope of the regulations in force;

C) identify appropriate intervention strategies and techniques for the seismic rehabilitation of existing structures;

D) assess the impact of structural interventions in terms of seismic safety of existing structures in accordance with the regulations in force.

Work Placement(s)

No

Syllabus

1. Analysis of structures subject to seismic actions

1.1. The effect of earthquakes on structures

1.2. Approaches to seismic design of structures

1.3. Seismic conceptual design of structures

1.4. Quantification of seismic action

2. Seismic assessment of existing structures

2.1. Information regarding existing structures

2.2. Structural analysis methods

2.3. Structural modeling

2.4. Performance requirements

2.5. Compliance criteria

3. Structures prone to unsatisfactory seismic behavior

3.1. Shortcomings in the structural system

3.2. Design, detailing and execution deficiencies

3.3. The Portuguese reality

4. Seismic rehabilitation of existing structures

4.1. Intervention strategies

4.2. Intervention techniques

4.3. Models of behavior of reinforced elements

5. Simplified methods for assessing seismic vulnerability.

Assessment Methods

Assessment
Resolution Problems: 50.0%
Exam: 50.0%

Bibliography

Costa, R., Providência, P. (2019), Avaliação e reabilitação sísmica de estruturas de betão armado, Engebook.

Fardis, M. (2009), Seismic design, assessment and retrofitting of concrete buildings based in EN-Eurocode 8, Springer, 2009.

Sousa, R., Costa, C.C., Costa, A.,  (2019), Metodologia para avaliação da segurança sísmica de edifícios existente baseada em análises de fiabilidade estrutural. Edifícios de betão armado, LNEC.

Candeias, P., Correia, A., Costa, A.C., Catarino, J., Pipa, M., Cruz, H., Carvalho, E., Costa, A. (2020), Aspetos gerais da aplicação em Portugal do Eurocódigo 8 – Parte 3 – Anexo C (Informativo) – Edifícios de alvenaria, RPEE, Série III, n.º12.

Bernardo, V., Costa, A. C., Costa, A., Catarino, J., Candeias, P. (2020), Métodos expeditos para avaliação sísmica de edifícios de alvenaria com pavimentos rígidos, RPEE, Série III, n.º14.

Chopra A. (2020), Dynamics of Structures – Theory and Applications to Earthquake Engineering (5th ed.),