Experimental results on the role of sheathing-to-frame and base connections of a European timber framed shear wall
Experimental results on the role of sheathing-to-frame and base connections of a European timber framed shear wall
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DOI：
10.1016/j.conbuildmat.2015.01.076
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发表时间：
2015-04
影响因子：
7.4
通讯作者：
Federica Germano;G. Metelli;E. Giuriani
中科院分区：
文献类型：
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作者：
Federica Germano;G. Metelli;E. Giuriani
在平台式木结构房屋中，水平荷载(风、地震)由剪力墙承担，剪力墙的滞回性能主要由墙板与框架的连接决定，如果墙基的压杆和剪力角托架具有足够的超强，本文给出了墙板与木柱连接的试验结果和足尺预制木框架剪力墙在竖向荷载作用下的试验结果。钉钉和钉钉节点的单调和循环试验结果表明，钉子表面特征对节点的初始刚度和延性有重要影响。足尺试验表明，竖向荷载对墙体的性能没有显著影响，墙体的滞回反应依赖于能够耗散80%以上总能量的套筒与框架的连接。此外，剪力墙的耗散滞回性能保证了高达2.0%的漂移，倒塌是由钢钉连接的低周疲劳破坏控制的。
In platform timber frame buildings the horizontal forces (wind, earthquake) are carried by the shear walls, whose hysteretic behavior is mainly governed by the sheathing-to-frame connections, if hold-downs and shear angle brackets at the wall base are designed with an adequate overstrength.The paper presents the experimental results obtained from tests both on connections between the sheathing panel and a timber stud and on full-scale prefabricated timber frame shear walls, with or without vertical loads. The results of monotonic and cyclic tests on nailed and stapled connections showed the importance of the surface feature of nails on initial stiffness and ductility of the connection. The full scale tests evidenced that the vertical load did not significantly influence the behavior of the walls, whose hysteretic response depended on the sheathing-to-frame connections which were able to dissipate more than 80% of the total energy. Furthermore, a dissipative hysteretic behavior of the shear wall was guaranteed up to 2.0% drift with the collapse governed by the low cycle fatigue failure of the steel nailed connections.