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首页> 外文期刊>Bulletin of earthquake engineering >Performance of buildings with masonry infill walls during the 2011 Lorca earthquake
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Performance of buildings with masonry infill walls during the 2011 Lorca earthquake

机译：2011年洛尔卡地震中砌筑填充墙的建筑物的性能

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摘要

On Wednesday 11th May 2011 at 6:47 pm (local time) a magnitude 5.1Mw earthquake occurred 6km northeast of Lorca with a depth of around 5 km. As a consequence of the shallow depth and the small epicentral distance, important damage was produced in several masonry constructions and even led to the collapse of one of them. Pieces of the facades of several buildings fell down onto the sidewalk, being one of the reasons for the killing of a total of 9 people. The objective of this paper is to describe and analyze the failure patterns observed in reinforced concrete frame buildings with masonry infill walls ranging from 3 to 8 floors in height. Structural as well as non-structural masonry walls suffered important damage that led to redistributions of forces causing in some cases the failure of columns. The importance of the interaction between the structural frames and the infill panels is analyzed by means of non-linear Finite Element Models. The resulting load levels are compared with the member capacities and the changes of the mechanical properties during the seismic event are described and discussed. In the light of the results obtained the observed failure patterns are explained. Some comments are stated concerning the adequacy of the numerical models that are usually used during the design phase for the seismic analysis.
机译：2011年5月11日（星期三）当地时间下午6:47，在洛尔卡东北6公里处发生了5.1兆瓦级地震，深度约为5公里。由于深度较浅且震中距离较小，一些砖石结构产生了重大破坏，甚至导致其中之一坍塌。几座建筑物的立面碎片掉落在人行道上，这是造成9人死亡的原因之一。本文的目的是描述和分析在砌体填充墙高度为3到8层的钢筋混凝土框架建筑中观察到的破坏模式。结构性和非结构性砌体墙遭受了重大破坏，导致力的重新分配，在某些情况下导致了柱子的破坏。通过非线性有限元模型分析了结构框架和填充面板之间相互作用的重要性。将所得的载荷水平与构件的承载力进行比较，并描述和讨论了地震事件期间力学性能的变化。根据获得的结果，说明观察到的故障模式。对于在地震分析的设计阶段通常使用的数值模型的适当性，提出了一些意见。

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