Developmentof Seismic Design Guidelines for Innovative Steel Shear Wall Buildings

加拿大东部和西部城市的地震风险是众所周知的。因此，在加拿大，设计具有足够抗震能力的结构和修复有缺陷的结构是极其重要的。钢板剪力墙（SPSW）是一种非常有效的抵抗风荷载和地震荷载的结构体系，但由于其强度高，在地震作用下会产生很大的内力，因此对工程师的吸引力较小。使用轻钢剪力墙，而不是传统的剪力墙与较厚的热轧填充板，代表了一个可行的和更经济的选择。研究表明，将非常薄的填充板焊接到相对厚的边界元件上是非常具有挑战性的，这降低了该系统的吸引力。将薄板连接到边界梁和柱的替代方案是使用自钻螺钉。虽然这是一种将轻型填充板连接到框架的简单解决方案，但过去尚未对其进行研究。另一种创新的钢剪力墙，这是最近推出的，以提高面板轴承对极端事件，如火灾和爆炸，是复合板剪力墙。在组合板剪力墙中，混凝土面板设置在钢板的一侧或两侧，以防止薄钢板的初始屈曲。在加拿大建筑设计规范中没有关于轻钢剪力墙和组合板剪力墙的抗震设计规定。这就给工程师在地震区的建筑物中选择这种体系带来了困难。这项研究计划的目的是制定加拿大的具体设计指南，为创新的钢剪力墙。建议的研究也将有助于下一代的轻钢剪力墙基于性能的抗震设计准则的发展。在拟议的研究中，有一个显着的创新潜力，这将有助于在加拿大地震区使用钢剪力墙。从拟议的研究结果将吸引执业工程师，基础设施业主选择创新的钢剪力墙抗震结构的设计。

Earthquake risks in the eastern and western Canadian cities are very well known. Thus the design of structures with adequate earthquake resistance and the rehabilitation of deficient structures are extremely important in Canada. Steel plate shear wall (SPSW) is a very effective system for resisting lateral loads due to wind and earthquakes, but the system remains less attractive to practicing engineers due to their high strength and the high forces they attract during earthquakes. Use of light-gauge steel shear walls rather than conventional shear walls with thicker hot-rolled infill plate, represents a viable and more economical alternative. Research has shown that welding of a very thin infill plate to relatively thick boundary elements is very challenging, which reduces the appeal of this system. An alternative to attach the thin sheet to boundary beams and columns is to use self-drilling screws. Although this is a simple solution for connecting a light gauge infill plate to a frame, it has not been investigated in the past. Another innovative steel shear wall, which has been introduced recently to improve the panel bearing against extreme events such as fire and explosion, is composite plate shear wall. In composite plate shear wall, concrete panel is provided either on one or both sides of the steel plate to prevent initial buckling of the thin steel plate. Seismic design provisions for light-gauge steel shear walls and composite plate shear walls are not available in Canadian building design codes. This makes it difficult for practicing engineers to select such system for buildings in seismic zones. The objective of this research program is to develop Canadian specific design guidelines for innovative steel shear walls. The proposed research will also contribute to the development of next-generation performance based seismic design guidelines for light-gauge steel shear walls. There is a significant potential for innovation in the proposed research, which will facilitate the use of steel shear walls in seismic zones in Canada. The results from the proposed research will attract practicing engineers, infrastructure owners to select the innovative steel shear walls for the design of earthquake resistant structures.