Abstract Single-storey precast reinforced concrete (RC) frame type buildings are mainly preferred in manufacturing plants and storehouses. The behaviour of semi-rigid beam-column connections of the buildings is one of the main sources of uncertainty. The common damages observed after credible earthquakes were falling off large-span beams and large plastic deformations at the column base. New generation Lead Extrusion Damper (LED) developed by the authors is utilized in the seismic retrofitting of these buildings in use. This paper discusses the seismic performances of pre- and post-behaviour of the retrofitted buildings and evaluates the efficiency of the applied retrofitting technique. It is exposed that seismic demands are diminished essentially. The relative storey drifts decrease by about 40-90% while the reduction in the strain at the column base section reaches to 70%.

中文翻译：

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在用钢筋混凝土单层工业建筑抗震性能改进

摘要 单层预制钢筋混凝土（RC）框架式建筑主要用于制造工厂和仓库。建筑物半刚性梁柱连接的行为是不确定性的主要来源之一。可信地震后观察到的常见损坏是大跨梁脱落和柱底大塑性变形。作者开发的新一代铅挤压阻尼器（LED）用于这些在用建筑物的抗震改造。本文讨论了改造前和改造后建筑物的抗震性能，并评估了应用改造技术的效率。可见抗震需求在本质上减少。