Wirtschaftlichkeit und Umsetzbarkeit von Gebäudeverstärkungsmaßnahmen zur Erdbebenertüchtigung

In book: Zweites Forum Katastrophenvorsorge "Extreme Naturereignisse - Folgen, Vorsorge, Werkzeuge", Publisher: DKKV, Bonn and Leipzig, Editors: G. Tetzlaff, T. Trautmann, K.S. Radtke, pp.128-135


The reduction of seismic risk due to retrofit of existing buildings is part of catastrophe prevention. The planning of interventions on given buildings differs from new planning through an important condition: the existing building is basis for all planning and construction performances. Social aspects play an important role, too. In this work a strategic planning system for the reduction of seismic risk has been developed. This includes the implementation of the plan and refers therefore to economic, social and administrative guidelines. There are different actors implied in the realization of retrofit measures. The Benefit-Costs-Analysis will not be made with the usual utility value means, but as multicriteria decision. A framework for an environment of evaluation of the information and decision making as well as a methodology which supports the experts conceptually in the priority setting process will be developed. The different instruments, goals, scenaria which characterise intervention layers with certain depth, will be included and expressed as criteria for the appreciation of values.

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Available from: Maria Bostenaru Dan, Mar 04, 2014
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    ABSTRACT: The expansive infrastructure, along with the high population density, makes cities highly vulnerable to the severe impacts of natural hazards. In the context of an explosive increase in value of the damage caused by natural disasters, the need for evaluating and visualizing the vulnerability of urban areas becomes a necessity in helping practitioners and stakeholders in their decision-making processes. The paper presented is a piece of exploratory research. The overall aim is to develop a spatial vulnerability approach to address earthquake risk, using a semi-quantitative model. The model uses the analytical framework of a spatial GIS-based multi-criteria analysis. For this approach, we have chosen Bucharest, the capital city of Romania, based on its high vulnerability to earthquakes due to a rapid urban growth and the advanced state of decay of the buildings (most of the building stock were built between 1940 and 1977). The spatial result reveals a circular pattern, pinpointing as hot spots the Bucharest historic centre (located on a meadow and river terrace, and with aged building stock) and peripheral areas (isolated from the emergency centers and defined by precarious social and economic conditions). In a sustainable development perspective, the example of Bucharest shows how spatial patterns shape the “vulnerability profile” of the city, based on which decision makers could develop proper prediction and mitigation strategies and enhance the resilience of cities against the risks resulting from the earthquake hazard.
    No preview · Article · Sep 2012 · Natural Hazards