Civil Engineering research unit (RISCO) contributions in

Civil Engineering research unit (RISCO) contributions in times of trouble

RISCO – Research Center for Risks and Sustainability in Construction

07.July.2021

HORIZON

RISCO research unit

23 Integrated members(and >30 collaborators)

@ University of Aveiro (PT)

Risk assessment in the built environment and

mitigation measures

Sustainability in construction and efficiency of

resources in the built environment

Built heritage conservation and renovation

WHO ARE WE? SCOPE & STRATEGY

Grow through collaborationwith different stakeholders

Contributing to several current and future challenges

“Art, Science and Innovation in times of Trouble”

Risks in Construction

Natural risks (Fire, Earthquakes, Floods, Coastal erosion, …)

Anthropogenic hazards (Pandemics, Fire, Wars, Pollution, … )

Resources scarcity (Water, Energy, Raw Materials),

Climate changes, Wastes, Indoor air quality, lack of affordable

housing, of durability and efficiency, …

Heritage loss, Vandalism, Lack of conservation,

Ageing & Degradation, Pollution, …

Sustainability in Construction

Built HeritageConservation

RISCO strategic goals

TROUBLES

Development and application of new technologies

Preservation of traditional solutions and heritage protection

Urban infrastructure and management (territorial scale)

Well-being and environmental protection

Energy and water efficiency

Smart transport and energy efficient and sustainable mobility

Structural integrity and risk assessment

RISCO reply to Troubles

Guided to promote the development of

sustainable and resilient cities through

safe, environmentally-friendly, efficient

and durable constructions.

Smart and eco-efficient construction materials and systems

What if a Disaster occurs during a Pandemic?

Seismic Risk in Industrial Facilities

Exploring Benefit-Cost Analysis for Earthquake Risk Reduction

Fire Following Earthquakes

Structural safety of stainless-steel structures under fire action

Fire design of tapered steel columns

Coastal Erosion: how to manage it?

Coastal Erosion: What’s the best intervention option?

Coastal Erosion: what tools should be applied?

Why Built Environments for an Active, Safe and Healthy Life?

Innovative approach for temperature control of massive concrete structures

Thermally enhanced mortars towards high-end efficient buildings

Paperchain – Industrial symbiosis on paper & pulp industry wastes for construction

Light Steel Framing construction in the southern European context

WF-NBIOT (Wall Fit – Narrowband Internet of Things): new WC solution

Geosynthetics - alternative to natural resources - constitutive models allowing for durability

How can water conservation measures contribute to energy and emissions reduction?

Coastal Erosion: how to discuss interventions performance?

Why safeguarding glazed tile façades?

Troubleshooting by building maintenance in times of crisis?

BIM-based methodology for the seismic assessment of mixed buildings

Efficient, comfortable, healthy and sustainable affordable housing?

Energy poverty and dependency – smarter materials and systems?

How will Europe look in 2050 – the evolution of the building stock?

Some examples of RISCOcontributions for times of trouble:




Lisbon

Porto

Coimbra

Journal paper: Silva V,, Paul N (2020). Potential Impact of Earthquakes during the 2020 COVID-19 Pandemic. Earthquake Spectra, in press.

Researchers: V. Silva

What if a Disaster occurs during a Pandemic?

> 30,000

<100

Homeless or

injured

Earthquake

Magnitude 8.5 Southwest of

cape S. Vicente

SCOPE:

Fundamental to prepare for scenarios related to

the occurrence of disasters like earthquakes or

floods during pandemics to bring a stable

emergency response after the increase in

infection rates and associated mortality.

MAIN OBJECTIVES:

Estimate the impact of earthquakes, floods

and hurricanes in the population in terms

of injuries and deaths.

Evaluate the expected increase in the

number of cases and associated fatalities.

Estimate the impact in the healthcare

infrastructure and supporting services.


Faro

Researchers: H. Rodrigues, Liana Ostetto,

Fernanda Rodrigues, Aníbal Costa, Vitor Silva


0 2 4 6 8 10

Average spectral acceleration (m/s2)

0

0.2

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0.6

0.8

1

Pro

babili

ty o

f exced

ence

Pre-code - Structural - Collapse prevention

Connection

Columns

Envelope

SCOPE:

Damage in industrial buildings is responsible for social and economic

consequences with repercussions that can go beyond local or regional

level. Recent earthquakes in the Mediterranean region caused losses

estimated in several billion EUR linked to direct and indirect losses.

MAIN OBJECTIVES:

• Develop advanced modelling tools to accurately represent the

behaviour of structural and non-structural components.

• Assess the expected seismic performance of existing RC

precast structures

• Estimate the socio-economical impact associated with seismic

induced direct and indirect losses in the industrial park.

• Propose sustainable retrofitting solutions to overcome the

fragilities identified in typical buildings

Seismic Risk in Industrial Facilities

Project: SeismicPRECAST – Seismic Performance Assessment of Existing Precast Industrial Buildings and Development of Innovative Retrofitting Sustainable Solutions –

(POCI-01-0145-FEDER-028439)

Exploring Benefit-Cost Analysis for Earthquake Risk Reduction

Different levels of damage predicted by advanced modelling


MitRisk project (Framework for seismic risk reduction resorting to cost-effective retrofitting solutions, PTDC/ECI-EST/31865/2017)

Researchers: H. Lovon, V. Silva, R. Vicente

SCOPE:

Cost-benefit analysis is a socioeconomic overview used to

evaluate the effectiveness of a set decisions, herein

consisting in different retrofitting strategies. Revenues

comes from the reduction of material and human losses due

to less vulnerability, while cost is associated to the

resources employed in the intervention of the building.

Advanced numerical modelling capable to predict collapse is

being employed along the study.

MAIN OBJECTIVES:

Characterize the Portuguese masonry building stock

Develop structural fragility and fatality vulnerability

functions based in novel EDPs.

Evaluate the effectiveness of retrofitting strategies by

means of economic and human losses.Derivation of structural fragility and fatality vulnerability functions

SCOPE:

Fire following Earthquakes are events with high consequences that

may cause extensive damage. However, their nature has not been fully

investigated as they are low-frequency events. Most standards ignore

the possibility of Fire following Earthquakes and buildings are not

adequately designed for that possibility. The development of numerical

studies will allow a better understanding of this phenomenon in high

importance class reinforced concrete (RC) structures.

MAIN OBJECTIVES:

Identify the best numerical analysis procedure to analyse the

Fire Following Earthquake phenomenon in RC structures;

Real case analysis of high importance class buildings;

Development of guidelines and recommendations for the

structural assessment of high importance class buildings to Fire

Following Earthquakes.

Researchers: H. Vitorino, P. Vila Real, H. Rodrigues, C. Couto

Fire Following Earthquakes

Vitorino, H., Rodrigues, H., & Couto, C. (2020). Evaluation of post-earthquake fire capacity of reinforced concrete elements. Soil Dynamics and Earthquake Engineering, 128

doi:10.1016/j.soildyn.2019.105900


D0/D1 (4h) D2 (4h) D3 (4h)

SCOPE:

The knowledge on the behaviour of stainless-steel structures in case of fire, action that

can cause highly undesirable collapse of buildings structures, still needs to be developed.

Although initially more expensive than the conventional carbon steel, the application of

stainless steel in structures has been increasing due to several different advantages, such as

its higher corrosion resistance, better aesthetic appearance, smaller maintenance needs,

mechanical resistance and higher ductility, higher tenacity characteristics and better

behaviour at elevated temperatures.

Moreover, it maintains a high price value at the end of the structure's life. Eurocode 3 fire

design rules for stainless steel members still require validation, as they are the same

developed for carbon steel, which have revealed to be imprecise and sometimes unsafe.

MAIN OBJECTIVE:

• Experimental and numerical studies in structural members (columns, beams and

beam-columns) with I or hollow cross-sections

• Development of more comprehensive, safer and economic simple calculation

models for designing stainless steel structural members when exposed to fire.

Researchers: N. Lopes, P. Vila Real, F. Arrais, C. Couto

Project: StaSteFi - Fire design of stainless steel members, PTDC/ECI-EGC/30655/2017, UA and IST, supported by FCT.


Structural safety of stainless-steel structures under fire action

SCOPE:

Eurocode 3 treats the stability of tapered columns in clause 6.3.4, also

denoted as General Method. However, no specific guidelines are provided

for its adaptation to fire, which is a gap in the current version of the norm.

Is has been shown that the GM is not applicable to fire situation as the

stability of these members in fire is not yet fully described and adapting

normal temperature methodologies is unsafe and unreliable. With that in

mind, a calibration of the EN 1993-1-2 buckling curve has been proposed,

validating the GM for the fire design of tapered columns.

MAIN OBJECTIVES:

Adaptation of the General Method to fire;

Assessment of the ultimate capacity of tapered columns using

GMNI-Analyses with SAFIR;

Calibration of the EN 1993-1-2 buckling curve;

Validation of the GM for the fire design of tapered columns.

Researchers: É. Maia, P. Vila Real, N. Lopes, C. Couto

Fire design of tapered steel columns Risks in Construction

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0 1000 2000 3000 4000 5000

γh=1

γh=1.5

γh=2

γh=2.5

γh=3

γh=3.5

γh=4

+15%

-25%

(kN)(k

N)

0

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2000

3000

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5000

0 1000 2000 3000 4000 5000

γh=1

γh=1.5

γh=2

γh=2.5

γh=3

γh=3.5

γh=4

+15%

-25%

(kN

)

(kN)

Maia, É., Vila Real, P., Lopes, N., & Couto, C. (2020). The General Method for the fire design of slender I-section web-tapered columns. Thin-Walled Structures, 155(2020)

https://doi.org/10.1016/j.tws.2020.106920

https://doi.org/10.1016/j.tws.2020.106920

SCOPE:

Worldwide coastal zones present serious erosion problems that cause loss of territory. This

phenomenon exposes people and goods to the threat, being necessary to carry out a well-

founded management of these areas. It is necessary to bring new inputs on the coastal

management, with participatory and integrated approaches, considering the main Portuguese

coastal management entities, namely the Portuguese Environmental Agency.

MAIN OBJECTIVES:

• Carry out a cost-benefit analysis of intervention strategies for the Portuguese coast in

short (2030), medium (2050) and long-term (2100) time horizons.

• Assess social and environmental impacts, engaging local populations and stakeholders

through workshops in order to develop a participatory and economic model.

• Apply the COAST (cost-benefit analysis software for coastal interventions) to case

studies of the Portuguese coast, providing more and better information to the decision-

makers.• Reduce vulnerability of coastal territories and increase resilience of local communities.

Researchers: C. Coelho, M. Lima, R. Pombo, P. Narra

Coastal Erosion: how to manage it?

Project INCCA (INtegrated Coastal Climate Change Adaptation for Resilient Communities), POCI-01-0145-FEDER-030842)

Project COAST4US (Application of the COAST tool to the Portuguese coast), PT-INNOVATION-0016


MAIN OBJECTIVES:

• Assess the performance of a set of submerged detached breakwater

configurations at Vagueira beach, through numerical modelling.

• Assess the feasibility of different sedimentary transposition solutions at the tidal

inlets of Aveiro and Figueira da Foz.

• Develop medium-term numerical model projections of shoreline evolution for

each specific location and to perform a cost-benefit analysis of the best set of

evaluated scenarios.

SCOPE:

Vagueira beach is characterised as a sandy coastal system with high deficit of sediment supply, being under an

energetic wave climate. Coastal erosion and the retreat of the shoreline position induces more frequent

overtopping events and increasing flooding risk.The regions located at downdrift of Aveiro and Figueira da Foz

harbors also present serious erosion problems due to the sand retention that occurs at updrift. However, to choose

the best intervention option depends on the specific characteristics of each site, challenging decision-makers.

Coastal Erosion: what’s the best intervention option? Risks in Construction

Researchers: C. Coelho, M. Ferreira, R. Pombo, M. Lima, P. Narra

Characterization and Feasibility Study of a Multifunctional Detached Breakwater in front of Vagueira Beach, POSEUR-02-1809-FC-000039

Feasibility Study of Sand By-passing at Aveiro and Figueira da Foz Tidal Inlets, Procedure n. 3552/2019 (Consortium UA/R5)


MAIN OBJECTIVES:

• Provide adequate tools to the decision-makers, which can be

easily interpreted by populations, promoting discussions of

optimal intervention scenarios in medium to long-term horizons.

• Integrate transversal knowledge in risk assessment, physical

processes, engineering and economic evaluations.

• Carry out analysis of different coastal erosion strategies in order

to identify the most efficient to reduce the risk to erosion.

Researchers: C. Coelho, P. Narra, B. Marinho, M. Lima, M. Ferreira

Coastal Erosion: what tools should be applied?

SCOPE:

COMASO (coastal management software) is a group of tools that can be applied in standalone mode, or in a sequential

order to perform an adequate management and planning of the coastal zones to mitigate coastal erosion problems and

climate change effects. One example of the tools is CERA, which is a coastal erosion risk assessment methodology that

uses 12 parameters to classify the coastal erosion risk, as a first step of the management process, identifying priorities.

Journal Paper: Coelho, C.; Narra, P.; Marinho, B.; Lima, M. Coastal Management Software to Support the Decision-Makers to Mitigate Coastal Erosion. J. Mar. Sci. Eng. 2020,

8, 37. https://doi.org/10.3390/jmse8010037

Journal paper: Ferreira, M., Coelho, C, Narra, P. (2021). Coastal Erosion Risk Assessment to Discuss Mitigation Strategies: Barra-Vagueira, Portugal. Natural Hazards: 105 1

(2021): 1069-1107. http://dx.doi.org/10.1007/s11069-020-04349-2

https://doi.org/10.3390/jmse8010037

http://dx.doi.org/10.1007/s11069-020-04349-2

SCOPE:

The decrease in young population together with the increase in the elderly one, the agingrate will more than double from 147 to 317 elderly people for every 100 young peoplein 2080. Hence, the need for decentralized healthcare and the use of the builtenvironment (our habitat) as a space where the population tends to spend more time,plays a crucial role in fighting isolation and providing greater and better quality of life,together with more resilient cities (resilient Habitat).

MAIN OBJECTIVES/RESULTS:

The main objectives are to integrate solutions developed for new environments and spaceswith personalized lifelong health:

supporting the proximity care network; promote human functionality through physical and cognitive stimulation interaction of the built space through its digitization develop new materials to allow the integration of in-built sensors develop adaptive and transformable modular structures, furniture and equipment

prefabricated modular construction systems for specific human needs

Project: ActiVas -Ambientes Construídos para uma Vida Ativa, Segura e Saudável, Mobilizador IDT, POCI-01-0247-FEDER-046101, 21 partners

Researchers: V. Ferreira, R. Vicente

Why Built Environments for an Active, Safe and Healthy Life?

Sensors (temp, vibration, etc.)

Prefabrication


SCOPE:

This work proposes a new methodology for the embedment of flexible pipe (with the

shape/geometry of the intended cooling pipes) that allows their removal a few hours after

casting (i.e. after setting), while allowing that water is pumped through the circular cavity

afterwards (by a flexible/impermeable sleeve placed to shield the exposed concrete cavity).

The pipes are initially filled with oil under pressure, which are deflated a few hours after

casting (particularly after setting is identified), and removed without relevant constraints due to

their reduction in diameter inherent to deflation. All components and materials embedded into

concrete (pipe, sleeve) are fully recoverable after the end of the temperature control period,

avoiding the loss of materials, with important financial and sustainability gains.

MAIN OBJECTIVES:

Minimize the risk of thermal cracks by post-cooling method;

• Sustainability of the used materials for post-cooling of massive

concrete structure;

• Pilot Experiments for proof of concept and numerical simulations.

Project: FCT post doc scholarship – SFRH/BPD/116022/ 2016

Researchers: M. Kheradmand, R. Vicente

Innovative approach for temperature control of massive concrete structures Sustainability in Construction

3D model example of a massive concrete structure with practical layout of post-cooling pipe and their effectiveness on the temperature variation

Example of curing test of slab with fully reusable parts

With cooling pipe Without cooling pipe

SCOPE:

The European Green Deal sets ambitious measures to tackle climate change, achieving climate

neutrality and a green economy in Europe by 2050. Incorporating Phase Change Materials (PCMs)

into building applications is a promising strategy for achieving indoor thermal comfort while promoting

energy efficiency in a sustainable way. Aware of the increasing trend of lightweight construction

worldwide and given the lack of thermal inertia characteristic of this constructive system, two

innovative thermally enhanced mortars with incorporation of PCM, for indoor coating applications, were

developed and fully characterized, targeting the reduction of overheating whilst promoting indoor

passive thermal regulation and energy efficiency. Real scale lightweight demonstrators were built and

continuous monitoring of indoor temperatures and energy consumption is running.

MAIN OBJECTIVES:

Development of two thermally enhanced mortars incorporating PCM;

Thermophysical characterization of the PCM-containing mortars;

Overheating reduction in lightweight buildings;

Laboratorial characterization and real scale demonstrators monitoring;

Project: SUDOKET – Mapping, consolidation and dissemination of the Key Enabling Technologies (KETs) for the construction area in the SUDOE space

[SOE2/P1/E0677], INTERREG SUDOE

Researchers: F. Rebelo, A. Figueiredo, R. Vicente, V. FerreiraThermal conductivity characterization

Microstructure


Real Scale Demonstrator

Thermally enhanced mortars towards high-end efficient

buildings

SCOPE:

This work has allowed to set up in 4 different countries of Europe (Portugal, Spain, Slovenia and

Sweden) large scale demonstrators of 5 circular cases on waste valorization as alternative raw

materials in construction, chemical and mining sectors. In Portugal 2 pilot cases were designed,

implemented and monitored after upscaling to a real scale at industrial level.

Circularity and sustainability analysis with a life cycle approach were made in this cases and other

details are available on the project website (www.paperchain.eu).

MAIN OBJECTIVES:

Minimize the risk of huge amounts of waste landfill disposal;

• Sustainable solutions using PPI wastes as alternative raw materials in construction and

other sectors;

• Circular economy model studies ad validation on this industrial symbiosis actions

• Upscale and large-scale demonstration of these solutions.

Project: H2020 circular economy large-scale demonstration European project (ref~730305 2017-2021) - EU partners

Researchers: V. Ferreira, M- Morais, H.Paiva, H. Maljaee

Paperchain – Industrial symbiosis on paper & pulp industry

wastes as alternative raw materials in construction


http://www.paperchain.eu/

SCOPE:

Given the proliferation of the Light Steel Framing (LSF) constructive system for residential

buildings, it is crucial to characterise how these buildings perform in the southern European

context, in terms of thermal comfort and energy efficiency. It is also important to compare

LSF buildings with the typical southern European constructions, namely the masonry and

reinforced concrete construction (HBM). Acknowledging the relevance of experimental studies

for this matter, a long-term monitoring campaign was established. This campaign is founded on

monitoring two identical experimental test cells, representing the two constructive systems.

MAIN OBJECTIVES:

The main objectives are related to assessment of LSF buildings in terms of energy efficiency and

indoor comfort in a southern European climate and considering a residential occupation

Characterise the indoor thermal environment of LSF buildings across all seasons.

Quantify the energy consumption required to maintain indoor thermal comfort conditions

Assess the impact of constructive configurations on the energy consumption and comfort

Establish and evaluate improvement constructive and operational strategies

Project: Research Project in Partnership with Perfisa – Fábrica de Perfis Metálicos, S.A.

Researchers: E. Roque, R. Vicente, V. Ferreira

Light Steel Framing construction in the Southern European contextSustainability in

Construction

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So

lar

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iati

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[W

.m-2

]

Tem

per

atu

re [

°C]

Date (D/M/YY hh:mm)

LSF HBM Outdoor dry bulb Solar radiation

LSF HBM

SCOPE:

To be competitive with undeveloped countries, the European companies have been

forced to innovate and to increase the added value of their products. Scientific

research focusing on the challenges of modern construction concluded that WC can

be more sustainable and intelligent.

MAIN OBJECTIVES:

Development of a prefabricated WC solution highly innovative (modular,

lightweight, easy to transport and apply, competitive cost).

Toilet flushing and air quality data acquisition and transmission through

Narrowband and IOT.

Development of a new interior partition solution.

Sustainable solution (optimization of the solution through life cycle analysis).

Project: WF-NBIOT – Wall Fit – Narrowband Internet of Things, POCI-01-0247-FEDER-039396

Project leader: Partnership:

Researchers: M. Morais, I. Meireles, A. Velosa, S. Ferreira, A. Kalthoum

WF-NBIOT (Wall Fit – Narrowband Internet of Things):

a new WC solution

Technical drawing Laboratory Prototype


Geosynthetics as an alternative to natural resources

- constitutive models allowing for durability

SCOPE:

Geosynthetics can contribute for “healing the world”, as they are used in civil and geotechnical

engineering to replace or enhance the use of natural materials. So, geosynthetics can contribute

to the sustainable global development goals defined by the United Nations.

The design life of geosynthetic-soil structures varies and can be 100+ years. Thus, geosynthetics

must be selected to ensure they maintain adequate values of relevant functional properties through

their design life and allowing for durability. Durability of geosynthetics is affected by installation

damage, creep or stress relaxation, temperature, weathering and chemical degradation. For most

structures, installation damage and creep are critical.

MAIN OBJECTIVES:

• propose constitutive models and parameters to represent the mechanical response of

geosynthetics allowing for their durability, in particular creep and installation damage;

• obtain high quality experimental data on the response of geosynthetics to loading, before

and after damage

• use these data to develop constitutive models for geosynthetics, allowing for damage,

• assess the capability of the models developed to reproduce the response of geotechnical

structures with geosynthetics.

Researchers: M. Pinho-Lopes, A.M. Paula, G. Lombardi


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sile

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rce

(kN

/m)

Strain (%)

t0 t1min t=24hours t15days t2months t1year t3years

t0fit t60fit t86400fit t1296000fit t5184000fit t31536000fit t94608000fit

Pinho-Lopes and Paula, not yet published

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Pinho-Lopes and Paula, not yet published

Researcher: I. Meireles

How can water conservation measures

contribute to energy and emissions reduction?


SCOPE:

EU is paying particular attention to water and energy

performance of buildings. On one side, the increasing

population in the EU and the potential effects of climate change

induce human pressure on water bodies, on the other side,

buildings are responsible for about 40% of the energy

consumption and 36% of the CO2 emissions in the EU, making

them the single largest energy consumer in Europe.

MAIN OBJECTIVES:

The main objectives are to model how, through the adoption

of water conservation measures in buildings:

the use of tapped water can be reduced;

the energy consumption can be reduced;

the release of carbon emissions can be reduced.

Journal paper: Meireles I., Sousa V. (2020). Assessing water, energy and emissions reduction from water conservation measures in buildings: a methodological

approach. Environmental Science and Pollution Research.

MAIN OBJECTIVES:

• Develop and improve the numerical modelling capacity to reproduce the

shoreline and cross-shore evolution impacts of different coastal erosion and

climate change mitigation measures.

• Provide numerical and physical modelling results and economic comparisons of

different coastal defence intervention scenarios, helping coastal management

and planning entities to define strategies for a specified time horizon.

Researchers: M. Lima, A. Guimarães, M. Ferreira, C. Coelho

Coastal Erosion: how to discuss interventions performance?

SCOPE:

Due to economic, environmental and social interest of coastal areas, together with their

erosion problems, different coastal management strategies can be considered, with

different physical and economic consequences and impacts, which may be assessed by

numerical modelling or experimental laboratory tests.

Journal Papers: Lima, M., Coelho, C., Veloso-Gomes, F., Roebeling, P. (2020). An integrated physical and cost-benefit approach to assess groins as a coastal erosion

mitigation strategy, Coastal Engineering, Volume 156.

Lima, M., Coelho, C. (2021) Integrated Methodology for Physical and Economic Assessment of Coastal Interventions Impacts. J. Modelling and Optimization, 13(1), 22-43.

Guimarães, A., Coelho, C., Veloso-Gomes, F., Silva, P.A. (2021). 3D Physical Modeling of an Artificial Beach Nourishment: Laboratory Procedures and Nourishment

Performance , Journal of Marine Science and Engineering.

Ferreira, M., Coelho, C. (2021). Artificial nourishments effects on longshore sediments. Journal of Marine Science and Engineering: 9-3: 240.

Erosion at reference

37 ha 43 ha 2 ha

Physical balance

= 37 ha

- 43 ha

+ 2 ha

= - 4 ha

scenario

Erosion at baseline

scenario

Accretion at baseline

scenario


AZULEJAR PROJECT, SOS AZULEJO GROUP, DB-HERITAGE PROJECT

Researcher: A. Velosa

SCOPE:

To safeguard, recover and assuring the built heritage constituted by

our unique Portuguese glazed tile facades (Azulejo) preserving an

attractiveness and cultural elements in our cities.

MAIN OBJECTIVES:

Based on several conservation measures in buildings and respective

cities to model and promote::

Materials – conservation and use of new materials

(geopolymers, mortars, grouts…)

System compatibility

Degradation mapping

Intervention techniques and principles, inducing changes in

Portuguese legislation

Why safeguarding glazed tile façades? Built HeritageConservation

SCOPE:

The construction sector is facing continuing difficulties with defects that are avoidable with the design

for sustainable maintenance considerations. Construction sector is among the most responsible for

negative impacts on the environment, being also a key target for minimizing the climate changes

causes. This work promotes the proper working of the facilities, decreases the environmental impacts

and allows fast building adaptation to trouble times, as pandemic times, using affordable, reusable

and sustainable materials to respond to other services demands.

MAIN OBJECTIVES:

• Develop a Building Condition Assessment methodology supported by quantitative tools to

prioritize maintenance and rehabilitation actions.

• Predict the optimum point and moment of a component/solution refurbishment.

• Integrate Life Cycle Assessment to Facility Management.

• Develop a BIM-based platform that allows an easy and building monitorization with reliable

management actions support by Key Performance Indicators (KPIs) and LCA.

Researchers: F. Rodrigues, H. Rodrigues, R. Matos, A. Costa

Troubleshooting by building maintenance in times of crisis?

Matos, R., Rodrigues, F., Rodrigues, H., Costa, A. (2021) “Building Condition Assessment supported by Building Information Modelling” Journal of Building

Engineering https://doi.org/10.1016/j.jobe.2021.102186.

PhD Grant funded by the Portuguese Government through the FCT (Foundation for Science and Technology) and European Social Fund : SFRH/BD/147532/2019.

Building Condition

Assessment


https://doi.org/10.1016/j.jobe.2021.102186

Journal paper: G. Correia Lopes, N. Mendes, R. Vicente, T.M. Ferreira, M. Azenha, Numerical simulations of derived URM-RC buildings: Assessment of

strengthening interventions with RC, J. Build. Eng. 40 (2021) 102304. doi:10.1016/j.jobe.2021.102304.

PhD Grant funded by the Portuguese Government through the FCT (Foundation for Science and Technology) and European Social Fund: PD/BD/135201/2017.

Researchers: G. Lopes, R. Vicente

BIM-based methodology for the seismic assessment of mixed buildings

SCOPE:

The use of reinforced concrete (RC) in retrofitting interventions on existing

unreinforced masonry (URM) buildings has been spreading all over the

world since the beginning of the twentieth century. However, many of these

mixed URM–RC buildings have revealed to be particularly vulnerable to

seismic action, and their inherent complex structural behaviour is still

understudied.

MAIN OBJECTIVES:

Investigate the suitability of the use of RC in the seismic

strengthening of old URM buildings

Assess the vulnerability of current mixed URM-RC buildings to

earthquakes

Develop an efficient and automatised BIM-based methodology for

the seismic assessment of mixed buildings0

0.2

0.4

0.6

0.8

0 2 4 6

Bas

e sh

ear

coef

f.

Displacement [cm]

Pushover curvesoriginal (+X)original (+Y)1 (+X)1 (+Y)2 (+X)2 (+Y)3 (+X)3 (+Y)4 (+X)4 (+Y)5 (+X)5 (+Y)6 (+X)6 (+Y)


SCOPE:

According to the Renovation Wave for Europe, building stock is both unique and heterogeneous in its

expression of the cultural diversity and history. It is also old and changes very slowly. More than 220

billion building units, representing 85% of the EU’s building stock, were built before 2000. 85-95% of the

buildings that exist today will still be standing in 2050.

To move moving towards a low-carbon economy, historic buildings retrofit can be a balance between

traditional, sustainable solutions and high energy performance, giving to low-income families healthy and

affordable housing.

MAIN OBJECTIVES:

Promote built heritage retrofit based on sustainable and traditional construction technics:

• Eco-refurbishment of the heritage housing at historic centers

• Eco-retrofit of heritage buildings

• Systemic transformation of the rehabilitation of built heritage that allows articulating the

energy transition towards a low-carbon economy model

Researchers: A. Costa, A. Tavares, J. Fonseca, A.D. Alves, F. Rodrigues

Efficient, comfortable, healthy and sustainable

affordable housing?

Project: ENERPAT Les techniques d’éco rénovation du bâti ancient. (Interreg Sudoe)


SCOPE:

Europe is moving towards a low-carbon economy and increased awareness about environmental and

energy efficiency stimulated by stringent energy efficiency standards driven by EU Energy Efficient

Directive and NZEB challenge, along with development of smart digital heating/cooling technologies. A

long-term vision for the research outcomes of this proposal is driven to the future trend of smarter

TABS (thermally activated buildings systems) that still seek to balance the role of the building fabric to

respond to the binomial structural-thermal regulation requirements.

MAIN OBJECTIVES:

The project essentially targets:

Developing a new radiant floor system for both heating and cooling

Incorporating of by-products from the paper pulp and steel and phase change materials

Incorporating of a blend of phase change materials, to enhance thermal energy

Assessing through a robust experimental campaign the thermal performance

Optimization of operational conditions (smart sensoring, AI and predictive control.

Project: SEERFloor – Super Energy Eficient Radiant Floor Systems, POCI-01-0247-FEDER-046101, 21 partners

Researchers: R. Vicente, V. Ferreira, H. Rodrigues, A. Figueiredo, H. Paiva

Energy poverty and dependency – smarter materials and systems?

Thermal imaging

Simulation and optimization

Sensoring


Researchers: V. Silva

How will Europe look in 2050 – the evolution of the building stock?

SCOPE:

The building stock and infrastructure in Europe is expected to

increase over 30% in the next 3 decades. Will this expansion

make Europe more sustainable and resilient? Or will losses

due to natural hazards and lack of energy efficiency continue

to increase? International agendas such as the Sendai

framework and the Paris Climate Agreement demand answers.

MAIN OBJECTIVES:

Predict how the built environment is expected to evolve

in urban and rural areas.

Develop earthquake and flood scenarios considering

the current and future European building stock.

Explore risk mitigation and energy efficient actions that

can alter the trajectory of disaster risk and energy

sustainability in the upcoming decades.

Journal paper: Calderon A, Silva V. (2020). Exposure Forecasting for Seismic Risk Estimation. Earthquake Spectra.


Conclusions:

RISCO contributions gathers

ART, SCIENCE AND INNOVATION to deal with

• BUILT HERITAGE CONSERVATION problems

and relies on

SCIENCE AND INNOVATION to tackle the multiple

• RISKS IN CONSTRUCTION and the

• SUSTAINABILITY challenges the built environment faces.

For this, RISCO needs a multidisciplinary approach with

other R&D units in and out of UAContact us:

https://www.ua.pt/pt/risco/[email protected]

https://www.ua.pt/pt/risco/

mailto:[email protected]

Civil Engineering research unit (RISCO) contributions in times of trouble

“Art, Science and Innovation in times of Trouble”

RISCO – Research Center for Risks and Sustainability in Construction

07.July.2021

Documents

Civil Engineering research unit (RISCO) contributions in