Seismic behaviour of precast column-to-foundation grouted sleeve connections
Seismic behaviour of precast column-to-foundation grouted sleeve connections
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DOI：
10.1007/1-4020-4891-2_10
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
P. Riva
中科院分区：
文献类型：
--
作者：
P. Riva
本文给出了一组关于预制柱-基础节点循环性能的试验结果。这些试验可以将现浇连接与口袋基础和灌浆套筒解决方案的反应进行比较。结果表明，灌浆套筒的延性与现浇柱-基础节点和袖珍基础的延性相似，但耗能略小。研究发现，在灌浆套筒连接中，损伤主要集中在柱底部，预制柱与基础之间存在较薄的灌浆层。因此，在柱子中可能会观察到非常少的损坏，从而使地震后的柱子修复变得更容易。
The results of a set of experimental tests concerning the cyclic behaviour of prefabricated column-tofoundation connections is presented. The tests allow to compare the response of cast-in-place connections against pocket foundation and grouted sleeve solutions. The results demonstrate that grouted sleeves ensure a ductility similar to the one of cast in situ column-foundation connections and of pocket foundations, although a slightly smaller dissipation capacity is observed. It is found that in grouted sleeves connections the damage is localized at the column base, in the thin grout layer existing between the prefabricated column and the foundation. As a result, very little damage may be observed in the column, allowing an easier post-seismic column repair.