ABSTRACT

Historical buildings are located in the city center, near squares where celebrations take place. These festivities usually include pyrotechnic events that impose blast loadings on historical buildings. In this paper, a methodology for the analysis of the dynamic response of historical buildings is presented, and applied to the Altamira Palace — a historical building listed as Spanish National Monument located in Elche (Spain) — during the experimental campaigns that registered the effect of two different pyrotechnic events. Vibration levels associated with these events are presented and analysed according to several international standards and scientific recommendations, in order to avoid even cosmetic damages. The qualitative analysis of the accelerograms, registered during both events, served to identify the different parts of the spectacle, in which the highest accelerations were induced during the last phase (commonly known as the earthquake). Based on the quantitative analysis of the signals, the most significant frequency range in terms of possible damage to the monument was detected below 10 Hz. In this range, the measurements showed peak accelerations much higher than those limits recommended in the different standards and scientific reports.

摘要

历史建筑位于市中心，靠近举行庆祝活动的广场。这些庆祝活动通常包括对历史建筑施加爆炸载荷的烟火活动。在本文中，提出了一种分析历史建筑动态响应的方法，并将其应用于阿尔塔米拉宫——一座位于埃尔切（西班牙）的被列为西班牙国家纪念碑的历史建筑——在实验活动中记录了两个不同的烟火事件。与这些事件相关的振动水平根据若干国际标准和科学建议进行了呈现和分析，以避免甚至是外观损坏。在两个事件期间记录的加速度图的定性分析用于识别奇观的不同部分，其中在最后阶段（通常称为地震）引起了最高加速度。根据对信号的定量分析，就可能对纪念碑造成的损害而言，最重要的频率范围被检测到低于 10 Hz。在这个范围内，测量结果表明峰值加速度远高于不同标准和科学报告中推荐的限值。