Abstract

In the context of steel composite wall (SC wall) standards, this study explores the relaxed provisions outlined in AISC N690 (2018), particularly concerning commonly used materials in general building construction, such as faceplate thickness, concrete strength, shear connector spacing, and steel tie spacing. These provisions were then applied to assess the viability of a “relaxed steel composite wall” as a seismic force-resisting system suitable for mid- and low-rise structures. Experimental investigations were conducted to achieve these objectives. A dedicated SC wall specimen was constructed, and various variables were examined, including the presence or absence of shear connectors, shear connector spacing, steel tie spacing, and faceplate types. The results were analyzed to assess fracture behavior, the relationship between shear force (V) and transverse displacement (Δ), shear stiffness variations, maximum in-plane shear strength, displacement ductility ratio (μ), and energy dissipation characteristics. Moreover, their displacement ductility ratios remained below 10, and they exhibited substantial energy dissipation capabilities. These findings suggest that the application of “relaxed SC walls” as seismic force-resisting systems is feasible for mid-, low-, and high-rise structures.

中文翻译：

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钢复合墙体结构及抗震性能验证试验研究

摘要

在钢复合墙（SC 墙）标准的背景下，本研究探讨了 AISC N690 (2018) 中概述的宽松规定，特别是有关一般建筑施工中常用材料的规定，例如面板厚度、混凝土强度、剪力连接件间距和钢拉杆间距。然后应用这些规定来评估“松弛钢复合墙”作为适合中低层结构的抗震力系统的可行性。为了实现这些目标进行了实验研究。建造了专用 SC 墙样本，并检查了各种变量，包括是否存在剪力连接件、剪力连接件间距、钢拉杆间距和面板类型。分析结果以评估断裂行为、剪切力 (V) 和横向位移 (Δ) 之间的关系、剪切刚度变化、最大面内剪切强度、位移延性比 (μ) 和能量耗散特性。此外，它们的位移延性比保持在10以下，并且表现出强大的能量耗散能力。这些发现表明，应用“松弛 SC 墙”作为抗震力系统对于中、低层和高层结构是可行的。