Seismic testing and retrofit of steel deck roof diaphragms for building structures
Seismic testing and retrofit of steel deck roof diaphragms for building structures
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建筑结构钢甲板屋顶隔板的抗震试验和改造
DOI：
10.1016/j.tws.2012.05.013
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发表时间：
2012
影响因子：
6.4
通讯作者：
C. Rogers
中科院分区：
文献类型：
--
作者：
R. Massarelli;J. Franquet;K. Shrestha;R. Tremblay;C. Rogers
对九个钢甲板屋顶隔板样本进行了实验计划，以评估其抗震特性。动态加载的隔膜能够产生剪切强度，但不能产生使用当前隔膜设计方法计算的剪切刚度值。此外，剪切刚度随着激励幅度的增加而降低。使用较厚的桥面板以及当桥面板平行于载荷方向定向时，隔膜延展性会降低。大多数受损的隔膜都可以修复以恢复其原有的强度。抗震改造方案可有效提高电弧点焊/按钮冲孔隔膜的剪切强度和刚度。
An experimental program of nine steel deck roof diaphragm specimens was carried out to assess their seismic characteristics. The dynamically loaded diaphragms were able to develop the shear strength but not the shear stiffness values calculated using current diaphragm design methods. Furthermore, the shear stiffness decreased with increasing excitation amplitude. Diaphragm ductility decreased with the use of thicker deck panels and when the deck was oriented parallel to the loading direction. Most of the damaged diaphragms could be repaired to recuperate their original strength. A seismic retrofit scheme was effective in increasing the shear strength and stiffness of an arc-spot weld/ button-punch diaphragm.