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首页> 外文期刊>Bulletin of earthquake engineering >Seismic performance of steel friction connections considering direct-repair costs
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Seismic performance of steel friction connections considering direct-repair costs

机译：考虑直接修复成本，钢摩擦连接的地震性能

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摘要

This study compares seismic losses considering initial construction costs and direct-repair costs for New Zealand steel moment-resisting frame buildings with friction connections and those with extended bolted-end-plate connections. A total of 12 buildings have been designed and analysed considering both connection types, two building heights (4-storey and 12-storey), and three locations around New Zealand (Auckland, Christchurch, and Wellington). It was found that buildings with friction connections required design to a higher design ductility, yet are generally stiffer due to larger beams being required to satisfy higher connection overstrength requirements. This resulted in the frames with friction connections experiencing lower interstorey drifts on most floors but similar peak total floor accelerations, and subsequently incurring lower drift-related seismic repair losses. Frames with friction connections tended to have lower expected net-present-costs within 50years of the building being in service for shorter buildings and/or if located in regions of high seismicity. None of the frames with friction connections in Auckland showed any benefits due to the low seismicity of the region.
机译：本研究对新西兰钢时刻抵抗框架建筑物的初始建筑成本和直接维修成本进行了抗震损失，以及具有摩擦连接的抗摩擦连接和具有延伸螺栓端板连接。考虑到连接类型，两座建筑高度（4层和12层）以及新西兰（奥克兰，基督城和惠灵顿）的三个地点，共有12个建筑物。结果发现，由于需要更大的光束来满足更高的连接过长的要求，因此具有摩擦连接的建筑物需要设计为更高的设计延展性，但通常是由于更大的光束而变硬。这导致帧具有摩擦连接，在大多数楼层上越低的间隙漂移，而且具有类似的峰值总楼层加速度，随后产生较低的漂移相关地震修复损失。具有摩擦连接的框架倾向于在建筑物的50年内具有较低的预期网络成本，以适用于较短的建筑物和/或位于高地震区域的区域。由于该地区的地震性低，奥克兰摩擦连接的框架都没有任何框架。

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