The Asynergies of Structural Disaster Risk Reduction Measures: Comparing Floods and Earthquakes

Traditionally, building‐level disaster risk reduction (DRR) measures are aimed at a single natural hazard. However, in many countries the society faces the threat of multiple hazards. Building‐level DRR measures that aim to decrease earthquake vulnerability can have opposing or conflicting effects on flood vulnerability, and vice versa. In a case study of Afghanistan, we calculate the risk of floods and earthquakes, in terms of average annual losses (AAL), in the current situation. Next, we develop two DRR scenarios, where building‐level measures to reduce flood and earthquake risk are implemented. We use this to identify districts for which DRR measures of one hazard increase the risk of another hazard. We then also calculate the optimal situation between the two scenarios by, for each district, selecting the DRR scenario for which the AAL as a ratio of the total exposure is lowest. Finally, we assess the sensitivity of the total risk to each scenario. The optimal measure differs spatially throughout Afghanistan, but in most districts it is more beneficial to take flood DRR measures. However, in the districts where it is more beneficial to take earthquake measures, the reduction in risk is considerable (up to 40%, while flood DRR measures lead to a reduction in risk by 16% in individual districts). The introduction of asynergies between DRR measures in risk analyses allows policy‐makers to spatially differentiate building codes and other building‐level DRR measures to address the most prevalent risk while not compromising the risk resulting from other hazards

Fehleranalyse der Messung von Serumenzymaktivitäten

Peer Reviewe

Methoden der direkten Blutammoniakbestimmung ohne Destillation

Peer Reviewe

Stability of glass elements: TG12 final report

Because of their characteristic high slenderness ratios, glass elements are usually relatively sensitive to buckling phenomena. As regards laminated glass components in particular, for instance effects of temperature variations or load duration complicate the correct estimation and prediction of their buckling response, which is already conditioned by slenderness ratios and by limited tensile strengths. In this context, within COST Action TU0905 ‘Structural glass’, the Task Group 12 ‘Stability’ focuses its main networking activity on the collection, assessment, discussion and validation of existing analytical models, as well as on the development of new techniques for a practical buckling analysis and verification of structural glass elements. In the paper, an overview of main activities and results is provided