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NEW APPROACH TO REDUCING THE RISK OF NATURAL DISASTERS

机译:减少自然灾害风险的新方法

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Reducing the risk of disaster -in structural engineering terms- generally consists of reducing the constructions' vulnerability, but the resulting buildings are not necessarily safe. For example, 3000 reinforced concrete and steel buildings collapsed or were severely damaged in the Lake Zone in Mexico City, during the 1985 earthquake, and severe damage was inflicted on wooden apartment buildings at the Marina district in San Francisco, CA, during the Loma Prieta 1989 earthquake. In both cases the natural site characteristics were very unfavorable. So a different approach is proposed, giving priority importance in developing urban plans for disaster reduction based on hazard maps, according to earth sciences and engineering investigations, but without disregarding the latest technology on earthquake resistant design. This approach is being applied in the reconstruction of the largest cities affected by the Peru August 15, 2007 earthquake. It is expected that the damage will be reduced to less than 5% of the construction value and the residents will be adequately protected. Special application is made for school buildings. The Pakistan 2005, and the Sichuan 2008 earthquakes highlighted the need to protect school children.
机译:减少灾难的风险-从结构工程的角度来讲-通常包括减少建筑物的脆弱性,但是最终的建筑物不一定安全。例如,在1985年地震期间,在墨西哥城的湖区,有3000座钢筋混凝土和钢结构建筑物倒塌或遭到了严重破坏,在洛马普里塔(Loma Prieta)期间,在加利福尼亚州旧金山滨海区的木制公寓楼遭受了严重破坏。 1989年地震。在这两种情况下,自然位置特征都是非常不利的。因此,提出了一种不同的方法,根据地球科学和工程研究,在基于灾害图的城市减灾计划中,优先考虑优先考虑的问题,而又不考虑抗震设计的最新技术。该方法正用于受秘鲁2007年8月15日地震影响的最大城市的重建。预计损害将减少到建筑价值的5%以下,并为居民提供充分的保护。特别适用于学校建筑。 2005年的巴基斯坦地震和2008年的四川地震都凸显了保护学童的必要性。

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