New approaches to seismic design of steel framed buildings

钢框架建筑抗震设计新方法

• 批准号: 298297-2007
• 负责人: Koboevic, Sanda
• 金额: $ 1.24万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=427502
• 关键词: New; approaches; seismic; design; steel

The majority of the international seismic design provisions, including the National Building Code of Canada (2005), employ the principles of capacity design to obtain structures capable of withstanding seismic solicitations. Although the main design objectives are usually achieved using this approach, the method presents several intrinsic inconsistencies. For instance, the procedures used to predict design values of displacements and deformations are not transparent and rely on somewhat artificial rules which fail to reflect the complex interactions that exist in actual structures. For certain structural systems, this can result in an important increase of structural mass without significantly improving the seismic behaviour.

大多数国际抗震设计规定，包括《加拿大国家建筑规范》（2005年），都采用了能力设计原则，以获得能够承受地震作用的结构。虽然主要的设计目标通常使用这种方法来实现，该方法提出了几个内在的不一致。例如，用于预测位移和变形的设计值的程序是不透明的，并且依赖于一些人工规则，这些规则不能反映实际结构中存在的复杂相互作用。对于某些结构系统，这可能导致结构质量的显著增加，而不会显著改善抗震性能。