Evaluation and Rehabilitation of Concrete Structures

Recommended Prerequisites

Building Materials, Strength of Materials, Reinforced Concrete and Structural Analysis (master's degree level).

Teaching Methods

The expository component is presented with the support of slides that gather most of the information to be transmitted. In this part the students' critical intervention is strongly encouraged.

The modelling, analysis and design examples are solved on the blackboard, with the colabotaion of the students.

In the last five minutes of each lesson, two questions are given about the covered topics, to which the students present a written response.

Learning Outcomes

After this curricular unit, students will be able to:

A) Understand the main chemical and physical mechanisms of production of concrete and steel and of reinforced concrete degradation

B) Know and identify the main pathologies of reinforced concrete

C) Lead a preliminary inspection and a detailed inspection, to plan field campaigns and to analyse results

D) Know the main methods of intervention in the conservation and strengthening of concrete structures and elements

E) Establish models for existing reinforced concrete structures and carry out their numerical analysis in order to determine the demand on the elements.

F) Proceed to the analysis, design, execution and quality control of strengthening solutions.

Work Placement(s)

No

Syllabus

1 -Basic concepts about concrete structures and their materials

Concrete and reinforcement steel in existing structures

Sustainability of de reinforced concrete industry

2 - Pathologies of concrete structures

Concrete and reinforcement pathologies

Their cause and severity

3 - Inspection and diagnosis of concrete structures

Documented information

Measurement, inspection and testing techniques

Programming on-site campaigns

Determination of the mechanical properties of concrete and reinforcement

Basics on dynamic identification techniques

4 - Modelling and analysis of existing structures

5 - Intervention strategies in existing structures

6 - Repair and strengthening of concrete structures and elements

Addition of concrete and reinforcement

Strenthening with FRP products

Connection between structural elements

Basics about foundations

Urgent interventions.

Assessment Methods

Assessment
Mini Tests: 40.0%
Exam: 60.0%

Bibliography

Appleton, J. (2013), Estruturas de Betão, Orion

CEB (1992), Durable Concrete Structures, Thomas Telford

Cóias, V (2006), Inspeções e ensaios na reabilitação de edifícios, IST Press

Costa, R. e Providencia, P. (2019), Avaliação e Reabilitação Sísmicas de estruturas de betão armado, Engebook

Costa, A. (sd), Reabilitação e Reforço de Estruturas, IST

Fib (2010), Structural Concrete, vol. 3, fib bulletin 53

Fib (2019), Extermally applied FRP reinforcement for concrete structures, fib bulletin 90

Mehta, P.K. e Monteiro (2014), Concrete - microstructure, properties and materials, McGraw Hill

Neville, A.M. (2013), Properties of Concrete, 5ª ed., Pearson

NP EN 1504 (2006-2009), Produtos e sistemas para a protecção e reparação de estruturas de betão, IPQ

Raupach, M. e Büttner, B. (2014), "Concrete Repair to EN 1504: Diagnosis, Design, Principles and Practice", CRC Press.