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Sea & SustainabilityThe contribution of Civil Engineering
riscoaveiro research centre for risks and sustainability in construction
risco
HORIZON
RISCO research unit:
23 Integrated members
>30 collaborators
• Risk assessment in the built environment and
mitigation measures
• Sustainability in construction and efficiency
of resources in the built environment
• Built heritage conservation and safeguarding
WHO ARE WE?
aveiro research centre for risks and sustainabilityin construction
SCOPE & STRATEGY
Grow through collaborationwith various stakeholders
aveiro research centre for risks and sustainabilityin construction
risco
Development and application of new technologies
Preservation of traditional solutions and heritage protection
Construction materials and systems development
Urban infrastructure and management (territorial scale)
Well-being and environmental protection
Energy and water efficiency
Smart and eco-efficient materials and systems
Structural integrity and risk assessment
risco aims to promote the
development of sustainable and
resilient cities through safe,
environmentally-friendly, efficient
and durable constructions.
aveiro research centre for risks and sustainabilityin construction
risco
Off-Shore Structures
Coastal protection and erosion
Risk assessment
Resilient infrastructures and management
Safeguarding of built heritage near the sea
Durability of material and degradation
Water management and efficiency
Energy
aveiro research centre for risks and sustainabilityin construction
risco
The contributions of RISCO to the theme of “Sea & Sustainability”:
Offshore structures (such as oil rigs) are subjected to marine environment conditions
with salt, sand and water, that are too severe for the corrosion of regular steel. The
stainless steel high corrosion resistance is an advantage on these applications.
In addition, the stainless steel offers an higher fire resistance when compared to carbon
steel, which can be very important for the safety of the workers on the offshore
structures.
The StaSteFi project main objective of improving the knowledge on the fire resistance of
stainless steel structures can thus contribute to a better and more optimize use of this
material on offshore structures.
Fire design of stainless steel members
Application to offshore structures
Researchers: N. Lopes*; P. Vila Real*; F. Arrais
Project: StaSteFi - Fire design of stainless steel members, POCI-01-0145-FEDER-030655, University of Aveiro (UA) and Instituto Superior Técnico (IST-ID)
aveiro research centre for risks and sustainabilityin construction
risco
Fire design of stainless steel members
Application on offshore structures
Researchers: N. Lopes*; P. Vila Real*; F. Arrais
Project: StaSteFi - Fire design of stainless steel members, POCI-01-0145-FEDER-030655, University of Aveiro (UA) and Instituto Superior Técnico (IST-ID)
aveiro research centre for risks and sustainabilityin construction
risco
Sand bypassing system at Tweed River (Australia)
Project: Characterization and feasibility study of a multifunctional detached breakwater in front of Vagueira beach
The aim of this project is to perform the mathematical
modelling and study of a submerged detached
breakwater at Vagueira beach.
Bathymetry and topography of the study area.
Dimensional and geographical characteristics of the detachedbreakwater - balance of lost (red) and gained (green) areas.
Forecast of shoreline evolution for reference scenario(Lg = 460 m, Ф = 0⁰, Lqm = 300 m, Ld = 400 m, Kt = 0.6), over 20 years.
Characterization and feasibility study of a
multifunctional detached breakwater - Vagueira beach
Researchers: R. Pombo; C. Coelho*
The work includes the assessment of:
• Hydrodynamics (waves and currents) and
morphodynamics effects around the breakwater;
• Shoreline response to different design scenarios.
Further work will be made to assess the costs and
benefits of the proposed solution.
aveiro research centre for risks and sustainabilityin construction
risco
The regions located at downdrift of Aveiro and Figueira da Foz harbors present serious erosions
problems due to the sand retention that occurs at updrift.
Sand bypassing systems are structures that allows to artificially restore the longshore sediment
transport, by crossing the harbor breakwaters and navigation channels.
Ave
iro
Project: Feasibility study for implementation of a sand bypassing system at Aveiro and Figueira da Foz
The main goal of the project, commissioned by APA (Agência Portuguesa do Ambiente) is to
study the feasibility of a sand bypassing system at Aveiro and Figueira da Foz.
Feasibility study for implementation of a sand
bypassing system at Aveiro and Figueira da Foz
Sand bypassing system at Tweed River (Australia)
Fig
uei
rad
a F
oz
Researchers: M. Ferreira; C. Coelho*
The Civil Engineering Department is applying different numerical models
(LTC - Long-Term Configuration and CS - Model) in order to access the
impact of the sand bypassing system in the shoreline evolution.
This study is being carried out by a multidisciplinary group.
aveiro research centre for risks and sustainabilityin construction
risco
Artificial nourishments are a coastal erosion mitigation strategy that consists of human induced addition
of large volumes of sand to a coastal area. However, artificial nourishments are not a permanent
solution, due to the natural sediments' removal from the deposition site, which requires re-nourishment
over time.
Two models applied to identify the performance of different artificial nourishments scenarios:
• LTC (Long-Term Configuration), to simulate the evolution of the shoreline position in a medium/long
term perspective (decades to centuries);
• CS-Model to simulate the cross-shore evolution of the beach profile.
Shoreline position obtain
through LTCPublication: Coelho, C., Ferreira, M., Marinho, B. (2020); “Numerical Modeling of the Artificial Sediment Nourishments Impacts”; Journal of Coastal Research (95): 209-213.
The main goal of the Sandtrack project, led by Department of Physics and financed by FCT, is to apply
an innovative approach to study the performance of artificial nourishments, that includes beachmonitoring and numerical modelling.
Sandtrack – Beach nourishment: an integrated
methodology for coastal management support
Researchers: M. Ferreira; C. Coelho*
aveiro research centre for risks and sustainabilityin construction
risco
Geosynthetics for coastal protection:
design and long-term performance
The main goals of this PhD research project are:
• Fill the knowledge gaps and contribute with new design methods of coastal defense structures,
mainly based on the case study scenarios identified along the Portuguese coast (wave climate
and exposure conditions);
• Evaluate parameters of efficiency and durability of geotextile tube structures used in coastal
defense, in order to support the responsible entities and decision-makers about the
feasibility/adequacy of the use of this type of structure for coastal protection;
• Develop new and more efficient construction solutions and/or measures to mitigate the instability
and rupture phenomena that is observed through field monitoring and processed data.
PhD research project - Geosynthetics for coastal protection: design and long-term performance
Researchers: F. Galvão; C. Coelho*
aveiro research centre for risks and sustainabilityin construction
risco
Perform a cost-benefit assessment of intervention strategies for the Portuguese litoral,
in short (2025), medium (2050) and long-term (2100) perspectives;
Evaluate the local social-environmental impacts of the different CCA options;
Develop an economic and participatory model approach to implement the CCA;
Reduce the vulnerability of the coastal territories and increase the resilience of the local
communities.
Integrated Coastal Climate Change
Adaptation for Resilient Communities
Researchers: C. Coelho*
Project: INCCA - Integrated Coastal Climate Change Adaptation for Resilient Communities, POCI-01-0145-FEDER-030842
aveiro research centre for risks and sustainabilityin construction
risco
Supported by:
Maintenance support strategies for reinforcedconcrete structures under corrosion risk
PhD research project - Maintenance support strategies for reinforced concrete structures under corrosion risk
Researchers: P. Mongelos; F. Rodrigues*; H. Varum
Due to climate change carbonation-induced damage can increase by
more than 16%, corrosion rate could increase by 15%, carbonation
depth could increase by 45% (China), acceleration of the failure time
by 31%.
Extensive experimental campaign over 38 buildings to define
degradation curves of structures for different scenarios (RCP4.5;
RCP8.5);
Calculation of the expected service life and dynamic decision-making
model – Maintenance strategies
Dynamic decision-making model – Maintenance strategies
aveiro research centre for risks and sustainabilityin construction
risco
Sustainable conservation of traditional
construction buildings near the seaside
This work was concerned with the sustainable conservation of typical
traditional buildings in the Aveiro seaside region - the haylofts (palheiros).
A discussion is made on how sustainability criteria may determine the type of
conservation to help preserve this type of traditional seaside construction.
Haylofts suffer high degradation from maritime influence and have been
submitted to multiple transformations often resulting in its
mischaracterization,
Publication: H. Portela, V. M. Ferreira, A. Velosa, Sustainable Conservation of Traditional Construction Buildings, CINCOS Proceedings, p. 141-151, (2016)
Researchers: H. Portela, A. Velosa*, V. M. Ferreira*
aveiro research centre for risks and sustainabilityin construction
risco
Ciclos de nevoeiro salino/secagem
0
2
4
6
8
10
12
14
0 24 48 72 96 120 144 168 192 216 240 264
Tempo (h)
Va
ria
çã
o d
e m
assa
(%
)
T 1
T 2
T 3
AbsT1
AbsT2
AbsT3
Study of degradation by accelerated artificial ageing tests to
assess durability of ceramic roof tiles in marine environments;
Study of degradation causes and respective solutions for the
attack by salt spray;
Publication: C. Cruz, Behaviour and durability of ceramic roof tiles in a marine environment, PhD thesis, UA, 2010 [supervision: V.M. Ferreira (UA) & R. Veiga, (LNEC)]
Behaviour and durability of ceramic roof
tiles in a marine environment
Researchers: C. Cruz, R. Veiga, V. M. Ferreira*
aveiro research centre for risks and sustainabilityin construction
risco
Measurement of atmospheric corrosion
effects on metal and stone in coastal locations
Researchers: F. Vidal; R. Vicente*; A. Bastos; J.A.R. Mendes da Silva
Project: TRAPHIC – Traffic related air pollution impacts on historic city centres: an integrated approach
The impact of corrosion and soiling is an impeller for building intervention, and
is a factor causing aesthetic nuisance and therefore accelerate the need for
regular maintenance. Combined atmospheric corrosion leads to the corrosion
of metals and stone recession.
Soiling patterns in building facades.
Dose-response functions developed to estimate annual corrosion rates.
• Understand the influence of pollution impact over traditional
building materials. Compare corrosivity and soling results
between urban areas and a near-coastal location.
• Validation of dose-response functions and suggest changes.
• Calculation of estimated costs of damage – maintenance
strategy.
aveiro research centre for risks and sustainabilityin construction
risco
Corrosion and soiling effects
Environmental and air pollution impacts
on coastal built heritage
Researchers: F. Vidal; R. Vicente*; A. Bastos; J.A.R. Mendes da Silva
Publication: F. Vidal, R. Vicente; J.A.R Mendes Silva, Review of environmental and air pollution impacts on built heritage: 10 questions, Journal of Cultural Heritage, Vol. 37, 2019
Soiling patterns in building facades.
• Redefinition of dose-response functions through multi-regression analysis
• Remapping corrosion in near-coastal areas
• Prediction of maintenance periods and costs
aveiro research centre for risks and sustainabilityin construction
risco
Characterization of the built environment for natural hazard risk management
Researchers: V. Silva*; H. Lovon
Soiling patterns in building facades.
• Most of the building stock in Portugal is located near the coast
• These areas are particularly vulnerable to coastal floods and tsunamis
• It is critical to invest in sustainable disaster risk management solutions
aveiro research centre for risks and sustainabilityin construction
risco
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