Innovative braced steel frame solutions for earthquake resistant structures

该项目的主要目标是开发创新的支撑钢框架系统，与目前使用的传统支撑框架相比，该系统将显示出更好的非弹性地震响应。将对两个新系统进行审查。它们将采用增强的耗能元件，表现出稳定的滞回性能和/或自定心能力。支撑配置的设计将缓解非弹性需求集中在建筑高度上的可能性。将制定设计准则，以便这些系统易于在实践中实施。第二个目标是改进目前对楼层间带有多个支撑面板的常规钢支撑的抗震设计规定。这种配置非常常用，尽管它容易将非弹性需求集中在楼层高度上。将对加拿大西部和东部预计发生的地震进行所有研究，以便制定适用于这两种类型的地面运动的具体规则。

The primary objective of this project is to develop innovative braced steel frame systems that will exhibit superior inelastic seismic response compared to conventional braced frames currently used. Two new systems will be examined. They will be built with enhanced energy dissipative elements exhibiting stable hysteretic behaviour and/or self-centering capabilities. The bracing configurations will be designed to mitigate the potential for concentration of inelastic demand over the building height. Design guidelines will be developed so that these systems can be readily implemented in practice. A second objective is to improve current seismic design provisions for conventional steel bracing with multiple bracing panels between storeys. This configuration is very commonly used although it is prone to concentration of inelastic demand over the storey height. All studies will be performed for earthquakes that are expected both in western and eastern Canada so that specific rules adapted to these two types of ground motions are made available.