Sidelap and Structural Fastener Tests for Steel Deck Diaphragms
Sidelap and Structural Fastener Tests for Steel Deck Diaphragms
复制标题
钢甲板隔膜的侧搭和结构紧固件测试
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
M. Eatherton
中科院分区：
文献类型：
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作者：
Y. Shi;S. Torabian;B. Schafer;W. S. Easterling;M. Eatherton
钢桥面横隔板体系通常用于钢框架建筑的屋顶施工，由许多部件组成，如波纹钢桥面板材、相邻板材之间的侧向紧固件、从板材到支撑梁或托梁的结构紧固件、弦构件和集热器。钢桥面横隔板体系的荷载-变形行为通常受侧倾和结构紧固件极限状态的控制。因此，为了了解和准确地模拟钢甲板横隔板系统的行为，有必要对各个紧固件的行为进行表征。这些紧固件的局部几何形状和细节的影响，如板材如何结合在一起，紧固件与板材边缘的接近程度，以及紧固件相对于波纹的位置等影响尚不清楚。本文提出了一个试验方案，其中包括80个在扁钢甲板板材(非波纹)中使用单一紧固件的试件，这些试件消除了波纹和边缘距离的影响。测试程序包括两种类型的侧板紧固件(#10螺钉、#12螺钉)、四种类型的结构紧固件(粉末驱动紧固件、气动紧固件、弧缝焊缝、#12螺钉)，以及其他变化，如结构紧固件的甲板层数(1层用于支撑、2层和4层)、甲板厚度(22个卡口、20个卡口和18个卡口)以及加载(单调和循环)。进行了一套配套的60个单调和循环测试，其中甲板几何形状和细节具有典型结构。通过对比这两组试验的结果，隔离了甲板几何形状和紧固件位置的影响。
Steel deck diaphragm systems, which are commonly used for roof construction in steel-framed buildings, consist of many parts such as corrugated steel deck sheets, sidelap fasteners between adjacent sheets, structural fasteners from the sheets to the supporting beams or joists, chord elements, and collectors. Load-deformation behavior of a steel deck diaphragm system is typically dominated by sidelap and structural fastener limit states. To understand and accurately model the behavior of steel deck diaphragm systems, it is therefore necessary to characterize the behavior of the individual fasteners. The effect of local geometry and detailing at these fasteners such as how the sheets fit together, fastener proximity to the sheet edge, and fastener location relative to the corrugation is not well understood This paper presents a testing program including 80 specimens with single fasteners in flat steel deck sheets (not corrugated) that remove the effects of corrugation and edge distance. The testing program included two types of sidelap fasteners (#10 screws, #12 screws), four types of structural fasteners (powder actuated fasteners, pneumatic power actuated fasteners, arc seam welds, #12 screws), as well as other variations such as number of deck plies for structural fasteners (1 ply to support, 2 ply, and 4 ply), deck thickness (22 gage, 20 gage and 18 gage), and loading (monotonic and cyclic). A companion suite of 60 monotonic and cyclic tests were conducted with deck geometry and detailing representative of typical construction. By comparing results between these two sets of tests, the effect of deck geometry and fastener location was isolated.