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首页> 外文期刊>Journal of Earthquake Engineering >ANALYSIS, TESTING AND DESIGN OF STEEL ROOF DECK DIAPHRAGMS FOR DUCTILE EARTHQUAKE RESISTANCE
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ANALYSIS, TESTING AND DESIGN OF STEEL ROOF DECK DIAPHRAGMS FOR DUCTILE EARTHQUAKE RESISTANCE

机译：抗顶板钢屋面板抗震分析，测试与设计

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An experimental program was conducted to study the inelastic response of steel roof deck diaphragms for low-rise steel buildings subjected to seismic loading. Tests were performed on 3.6 m x 6.1 m diaphragm specimens made of corrugated steel deck panels. The parameters examined were the thickness and configuration of the sheet steel panels, the type and spacing of the fasteners, the applied loading history and the influence of end lap joints. Diaphragms built with screwed side lap fasteners and nailed deck-to-frame connectors exhibited a pinched hysteretic behaviour, but could sustain large inelastic deformation cycles with limited strength degradation. This type of diaphragm construction could be designed to resist earthquake effects in the inelastic range. Higher shear resistance and less pinching was observed for systems that included welded with washer connections. However, their strength decreased rapidly after the peak load was reached, and hence, these systems should be designed for limited inelastic response. Deck systems with button punched side laps and frame welds without washers showed a brittle response and should be designed to remain elastic under severe earthquake motions. The inelastic demand was found to increase when the spacing of the fasteners was reduced. Specimens constructed with an internal overlap joint exhibited extensive warping of the cross section mainly due to the shorter panel length.
机译：进行了一个实验程序，以研究承受地震荷载的低层钢结构建筑的钢屋顶甲板隔板的非弹性响应。在由波纹钢甲板面板制成的3.6 m x 6.1 m隔膜样品上进行了测试。检查的参数是钢板的厚度和结构，紧固件的类型和间距，施加的载荷历史以及端部搭接的影响。用侧面搭扣固定的螺丝和甲板到框架的钉子连接的横隔板表现出收缩的滞回性能，但可以承受较大的非弹性变形循环，而强度下降有限。这种类型的膜片结构可以设计为抵抗非弹性范围内的地震影响。对于包括垫圈连接焊接在内的系统，观察到了较高的抗剪切力和较少的挤压。但是，它们的强度在达到峰值载荷后迅速下降，因此，这些系统应设计用于有限的非弹性响应。不带垫圈的甲板系统带有按扣打孔的侧边搭接和框架焊接，表现出脆性，应设计成在剧烈地震作用下保持弹性。当减少紧固件的间距时，发现无弹性需求增加。用内部搭接接头构造的样品显示出较大的截面翘曲，这主要是由于面板长度较短。

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