Seismic Performance and Design of Reinforced Soil Structures with Reference to Lessons Learned from the 1999 Earthquakes of Taiwan and Turkey

借鉴1999年台湾和土耳其地震的教训加筋土结构的抗震性能和设计

• 批准号: 0084449
• 负责人: Hoe Ling
• 金额: $ 6.92万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-01 至 2002-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0084449&HistoricalAwards=false
• 关键词: Seismic; Performance; Design; Reinforced; Soil

CMS0084449Title: "Seismic Performance and Design of Reinforced Soil Structures with Reference to Lessons Learned from the 1999 Earthquakes of Taiwan and Turkey"PI: H. I. LingInstitution: Columbia UniversityAbstract:Reinforced soil structures are an emerging technology that allows rapid and economic construction of retaining walls, slopes and embankments. Many reinforced soil structures are constructed in difficult terrain or in urban areas where space is limited. The performance of reinforced soil structures under normal loading conditions is known to be satisfactory. During the Northridge and Kobe earthquakes their performance was better than conventional gravity and cantilever retaining walls. However, during the Northridge Earthquake, the reinforced soil structures were at a distance from the epicenter and thus they were not subjected to high seismic loading. Reinforced soil structures constructed in Japan have rigid facing and they are different from those present in other parts of the world. In particular, reinforced soil structures with modular-block facing, commonly used in the United States, Turkey and Taiwan are not constructed in Japan. Therefore, the earthquakes of Taiwan and Turkey provided a unique opportunity to examine the performance of versions of reinforced soil structures commonly found in the United States. The PIs visited the earthquake-affected areas in Taiwan and Turkey to identify damaged reinforced soil structures which are similar to the U.S. proprietary system. The proposed research involves investigating the mechanism of failure through collaboration with researchers and practicing engineers from Taiwan and Turkey. The proposed research aims to achieve the following objectives within the given one-year time framework:1. To assess the performance of reinforced soil structures during the earthquakes of Taiwan and Turkey.2. To obtain the technical details of the reinforced soil structures in the earthquake-affected areas, including wall configuration, reinforcement layout, soil and reinforcement properties, and earthquake characteristics.3. To evaluate simplified seismic analysis procedures for the identified reinforced soil structures. 4. To organize an international workshop on the issues of seismic design of reinforced soil structures. 5. To suggest improvements to current design procedures based on the results of study and workshop.The failure of reinforced soil structures during recent earthquakes may indicate that existing design procedures are inadequate. Alternatively, it might be a result of improper design/construction. Thus, the proposed research will lead to significant technological benefits to researchers and practicing engineers in the United Staes and worldwide.

CMS0084449TITLE：“从1999年台湾和土耳其地震中学到的经验教训的地震性能和设计的增强土壤结构的设计” PI：H。I. Linginstitution：哥伦比亚大学摘要：加固的泥土结构是一种新兴的泥土技术，可以快速且经济建设壁壁，斜坡和路堤。 许多增强的土壤结构都是在艰难的地形或空间有限的城市地区建造的。 已知在正常载荷条件下的增强土壤结构的性能是令人满意的。 在Northridge和Kobe地震期间，他们的性能要比传统的重力和悬臂挡土墙更好。但是，在北山地震期间，增强的土壤结构与震中距离距离，因此不承受高地震载荷。 日本建造的增强土壤结构的面孔刚好与世界其他地区不同。 尤其是，在日本，没有在美国，土耳其和台湾通常使用的具有模块化面板的增强土壤结构。因此，台湾和土耳其的地震提供了一个独特的机会，以检查美国常见的增强土壤结构的性能。 PIS参观了台湾和土耳其的地震影响地区，以识别与美国专有系统相似的受损的增强土壤结构。 拟议的研究涉及通过与台湾和土耳其的研究人员和执业工程师的合作来调查失败机制。 拟议的研究旨在在给定的一年框架内实现以下目标：1。评估台湾和土耳其地震期间增强土壤结构的性能。2。为了获得地震影响区域中增强土壤结构的技术细节，包括墙壁构造，增强布局，土壤和增强特性以及地震特征。3。评估已确定的增强土壤结构的简化地震分析程序。 4。组织一个国际研讨会，讨论钢筋土壤结构的地震设计问题。 5。根据研究和研讨会的结果提出对当前设计程序的改进。最近地震期间增强土壤结构的失败可能表明现有的设计程序不足。另外，这可能是设计/构造不当的结果。 因此，拟议中的研究将为联合Staes和全球的研究人员和实践工程师带来重大的技术利益。