Collapse Studies of Mission-Gothic Undercrossing and Bull Creek Canyon Channel Bridges with Nonlinear Finite Elements and Interacting Ground Motion

非线性有限元和相互作用地震动对 Mission-Gothic 地下交叉桥和 Bull Creek Canyon 航道桥的倒塌研究

• 批准号: 9416463
• 负责人: Franklin Cheng
• 金额: $ 8.33万
• 依托单位: Missouri University of Science and Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-09-15 至 1996-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9416463&HistoricalAwards=false
• 关键词: Collapse; Studies; Mission; Gothic; Undercrossing

9416463 Cheng This project investigates damage and collapse behavior of MissionGothic Undercrossing and Bull-Creek Canyon Channel bridges. Damaged structures on site were studied and field observations extensively with eminent engineers in California were exchanged. The tasks include: (1) failure criteria and nonlinear finite element analysis, (2) structural modeling and response analysis, (3) effect of interacting ground motions, (4) results synthesis, and (4) recommendations on bridge code improvements. Analysis includes formulation of nonlinear finite elements and the effect of interacting ground motion on structural response. Analytical results will verify field observations and enhance current practice in design and retrofit of bridges in the US. This is a Northridge Earthquake project. ***

9416463 Cheng 该项目调查 MissionGothic Undercrossing 和 Bull-Creek Canyon Channel 桥梁的损坏和倒塌行为。对现场受损结构进行了研究，并与加利福尼亚州的杰出工程师进行了广泛的现场观察交流。任务包括：(1) 失效准则和非线性有限元分析，(2) 结构建模和响应分析，(3) 相互作用的地面运动的影响，(4) 结果综合，以及 (4) 有关桥梁规范改进的建议。 分析包括非线性有限元的公式以及相互作用的地面运动对结构响应的影响。 分析结果将验证现场观察并加强美国桥梁设计和改造的当前实践。 这是北岭地震项目。 ***