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首页> 外文期刊>Bulletin of earthquake engineering >Influence of infill distribution and design typology on seismic performance of low- and mid-rise RC buildings
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Influence of infill distribution and design typology on seismic performance of low- and mid-rise RC buildings

机译：填充物分布和设计类型对中低层钢筋混凝土建筑抗震性能的影响

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摘要

A growing attention has been addressed to the influence of infills on the seismic behavior of Reinforced Concrete buildings, also supported by the observation of damage to infilled RC buildings after severe earthquakes (e.g. L'Aquila 2009, Lorca 2011). In this paper, a numerical investigation on the influence of infills on the seismic behavior of four different case study buildings is carried out: four- and eight-storey buildings, designed for seismic loads according to the current Italian technical code or for gravity loads only according to an obsolete technical code, are considered. Seismic capacity at two Limit States (Damage Limitation and Near Collapse) is assessed through static push-over analyses, within the N2 spectral assessment framework. Different infill configurations are considered (Bare, Uniformly Infilled, Pilotis), and a sensitivity analysis is carried out, thus evaluating the influence of main material and capacity parameters on seismic response, depending on the number of storeys and the design typology. Fragility curves are obtained, through the application of a Response Surface Method. Seismic performance is also expressed in terms of failure probability, given a reference time period.
机译：人们越来越关注填充物对钢筋混凝土建筑物抗震性能的影响，同时还受到观察到强烈地震后对填充的RC建筑物的破坏的支持（例如L'Aquila 2009，Lorca 2011）。在本文中，对填充物对四种不同案例研究建筑物的地震行为的影响进行了数值研究：四层和八层建筑物，根据当前的意大利技术规范设计用于地震荷载或仅用于重力荷载根据过时的技术规范进行考虑。在N2频谱评估框架内，通过静态推覆分析来评估两个极限状态（损伤极限和接近坍塌）的抗震能力。考虑不同的填充物配置（裸露，均匀填充，Pilotis），并进行了敏感性分析，从而根据层数和设计类型，评估了主要材料和承载力参数对地震响应的影响。通过应用响应面方法获得了脆性曲线。给定参考时间段，抗震性能也以破坏概率的形式表示。

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