It is historically a fact that Turkey experiences frequent earthquakes, on the order of one damaging earthquake of magnitude 6–7 approximately every 2 years, causing extensive losses to economy, life and limb. Every strong earthquake leaves behind poverty and tens of thousands of homeless people. In order to mitigate especially the losses of life due to earthquakes, a rapid scoring technique called the P25 – Preliminary Assessment Method is proposed herein. The purpose of the method is to determine, for a reinforced concrete-framed building, whether there is any vulnerability to collapse during a strong earthquake. By identifying those buildings, which are most likely susceptible to collapse inside a particular building stock, and consequently strengthening or demolishing them, practically no loss of life will occur. In this presentation, details of P25 – Preliminary Assessment Method are discussed and the high degree of prediction reliability of the method is demonstrated on 323 case study buildings, which experienced wide ranges of damage during past earthquakes.
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It is historically a fact that Turkey experiences frequent earthquakes, on the order of one damaging earthquake of magnitude 6–7 approximately every 2 years, causing extensive losses to economy, life and limb. Every strong earthquake leaves behind poverty and tens of thousands of homeless people. In order to mitigate especially the losses of life due to earthquakes, a rapid scoring technique called the P25 – Preliminary Assessment Method is proposed herein. The purpose of the method is to determine, for a reinforced concrete-framed building, whether there is any vulnerability to collapse during a strong earthquake. By identifying those buildings, which are most likely susceptible to collapse inside a particular building stock, and consequently strengthening or demolishing them, practically no loss of life will occur. In this presentation, details of P25 – Preliminary Assessment Method are discussed and the high degree of prediction reliability of the method is demonstrated on 323 case study buildings, which experienced wide ranges of damage during past earthquakes.
LINK
Environmental values are becoming increasingly important in restoration of historical buildings, while energy interventions can seriously damage historical qualities. Cultural-historical values and environmental values are often considered difficult to commensurate, with energy engineers and heritage experts adhering to widely differing values and relating to different discourses. Valuation instruments are devised to deal with such value conflicts in restoration projects. In this article we study what such instruments perform in the case of assessing historical buildings. We ask how these instruments work, and how they afford, support and guide valuation processes? Furthermore, we enquire what is achieved and what is lost in the reconciliation of values. Theoretically, we start from the notion of commensuration, which allows comparison of values through a shared metric. Empirically, this research note examines the history and use of DuMo, an instrument that aims to reconcile cultural – historical and environmental values and provides a range of sustainable restoration strategies. We find that DuMo indeed performs commensuration of these conflicting values, but also keeps intact the epistemic authority of the two professions. Our claim thus is that valuation instruments can successfully perform commensuration while at the same being contested by involved professionals.
The energy transition is a highly complex technical and societal challenge, coping with e.g. existing ownership situations, intrusive retrofit measures, slow decision-making processes and uneven value distribution. Large scale retrofitting activities insulating multiple buildings at once is urgently needed to reach the climate targets but the decision-making of retrofitting in buildings with shared ownership is challenging. Each owner is accountable for his own energy bill (and footprint), giving a limited action scope. This has led to a fragmented response to the energy retrofitting challenge with negligible levels of building energy efficiency improvements conducted by multiple actors. Aggregating the energy design process on a building level would allow more systemic decisions to happen and offer the access to alternative types of funding for owners. “Collect Your Retrofits” intends to design a generic and collective retrofit approach in the challenging context of monumental areas. As there are no standardised approaches to conduct historical building energy retrofits, solutions are tailor-made, making the process expensive and unattractive for owners. The project will develop this approach under real conditions of two communities: a self-organised “woongroep” and a “VvE” in the historic centre of Amsterdam. Retrofit designs will be identified based on energy performance, carbon emissions, comfort and costs so that a prioritisation strategy can be drawn. Instead of each owner investing into their own energy retrofitting, the neighbourhood will invest into the most impactful measures and ensure that the generated economic value is retained locally in order to make further sustainable investments and thus accelerating the transition of the area to a CO2-neutral environment.
Gebouwd en landschappelijk erfgoed zijn van groot belang voor de kwaliteit en identiteit van de leefomgeving. Hoe houden we ons erfgoed in stand, ook in het licht van grote ruimtelijke transities? Hoe kunnen erfgoedwaarden inzetten als inspiratiebronnen bij deze ruimtelije transities? Onderzoekers Maarten Vieveen en Tineke van der Schoor doen onderzoek naar deze aspecten. Regelmatig wordt samengewerkt met eindgebruikers (inwoners, beheerders en passanten), erfgoedinstellingen en overheiden.Het koepelproject Duurzaam Erfgoed heeft een belangrijke impuls gekregen door het RAAK-project Energieke Restauraties (2011-2013) en het Living Lab Erfgoed in Energietransitie van RVO (2020-2021). In deze projecten werd speciaal aandacht besteed aan het perspectief van de eindgebruiker, erfgoedwaarden, energiereductie en energieopwekking.
