Abstract

Past earthquakes have brought attention to the poor performance of precast reinforced concrete structures, especially relating to beam-to-column connections. The evaluation of different methodologies for the analysis of beam-to-column connections in industrial buildings is important. In the present work numerical analyses developed allowed the study of the effect that different story heights and connection properties have on frequencies, drifts, seismic coefficients and connection sliding. The results showed that the friction between concrete elements and the consideration of neoprene have a small impact on the drift demands in the columns and the seismic coefficients of the structures analyzed; on the other hand, the effect of steel dowel on the drift demands and seismic coefficients is significant. The comparison of models with different properties and connections allowed a better understanding of the parameters that affect the seismic behavior of precast reinforced concrete buildings the most and provide indications for building more accurate and efficient numerical models.

摘要

过去的地震引起了人们对预制钢筋混凝土结构性能不佳的关注，特别是在梁柱连接方面。评估用于分析工业建筑中梁柱连接的不同方法非常重要。在目前的工作中，开发的数值分析允许研究不同层高和连接特性对频率、漂移、地震系数和连接滑动的影响。结果表明，混凝土构件之间的摩擦力和氯丁橡胶的考虑对柱内的位移需求和所分析结构的抗震系数影响很小；另一方面，钢销对位移需求和抗震系数的影响是显着的。