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Feasibility of pre-earthquake strengthening of buildings based on cost-benefit and life-cycle cost analysis, with the aid of fragility curves 总被引:1,自引:1,他引:0
There are two fundamental questions this article aims to deal with. First, whether a pre-earthquake strengthening of a large
and heterogeneous building stock (the emphasis here is on building types common in S. Europe), is economically feasible or
not, and second what is the optimal retrofit level for mitigating the seismic risk. To this purpose contemporary decision
making tools, namely cost-benefit and life-cycle cost analyses, are tailored to the needs of the present study, and implemented
with the aid of an ad-hoc developed new software application (COBE06). A method for estimating the reduction in structural
vulnerability due to retrofit is proposed, as well as a methodology to determine the optimum retrofit level using the fragility
curve approach. Finally, the proposed methodology is used in a pilot application that concerns the city of Thessaloniki, and
results are drawn for the feasibility of strengthening the reinforced concrete building stock in this city. 相似文献
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Nikos D. Lagaros 《Bulletin of Earthquake Engineering》2007,5(3):425-442
The objective of this study is to perform life-cycle cost analysis on three design practices namely weak ground storey, short
and floating columns and their combinations. Life-cycle cost analysis is recognized as the only suitable tool for assessing
the structural performance when the structure is expected to be functional for a long period of time. Life-cycle cost analysis
is considered in this study assessing the behaviour of the three design practices against earthquake hazard. Although, a number
of checks are performed in order to reduce the influence of these design practices on the seismic behaviour of reinforced
concrete (RC) framed structures, it was found that the total life-cycle cost of partially infilled RC designs is significantly
increased compared to that of the fully infilled one. Through the test example examined in the framework of this study general
conclusions are obtained regarding the behaviour of the three design practices. 相似文献
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市政管道的全寿命风险评估是市政管道风险管理的重要组成部分,准确而有效的评估决策关系到管道建设的成败问题。本文通过对市政管道全寿命周期内单元风险进行识别与分类;采用现有的管道风险技术,和专家评分法等方法对风险因子进行实效因素评分,然后进行市政管道的全寿命风险评估。 相似文献
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