Soil-Structure Interaction under Environmentally Induced Cyclic Loading

环境引起的循环荷载下的土-结构相互作用

• 批准号: RGPIN-2015-06062
• 负责人: Newson, Timothy
• 金额: $ 1.82万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=590821
• 关键词: Soil; Structure; Interaction; under; Environmentally

The majority of geotechnical structures will be subjected to environmentally induced cyclic loads during their life-spans. These cyclic loads can be from a variety of sources, e.g. traffic, machines, wind and waves, construction or earthquakes. Repeated loading can range from a large number of high-probability cycles with relatively small amplitude, to a small number of low-probability cycles with relatively large amplitude. The cyclic loading will commonly be multi-axial and have a loading-time history that is irregular, with amplitude and frequency changes from cycle to cycle. This loading can lead to the accumulation of residual strains and stress changes that affect the performance or stability of the structure.

大多数岩土结构将在其寿命期间受到环境引起的循环载荷。这些循环负载可以来自多种来源，例如交通，机器，风和波浪，建筑或地震。重复载荷的范围从相对较小的大量高概率循环到相对较大的少量低概率循环。循环载荷通常是多轴的，并且具有不规则的加载时间病史，幅度和频率从周期到周期变化。这种负载会导致残留菌株的积累和应力变化，从而影响结构的性能或稳定性。