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.

cms0084449题目：“从1999年台湾和土耳其地震的经验教训对加筋土结构抗震性能和设计的参考”，PI: h.i.l inginstitution: Columbia university摘要：加筋土结构是一种新兴的技术，可以快速和经济地建造挡土墙，斜坡和堤防。许多加筋土结构是在地形复杂或空间有限的城市地区建造的。加筋土结构在正常荷载条件下的性能是令人满意的。在北岭和神户地震中，它们的性能优于传统的重力和悬臂挡土墙。然而，在北岭地震中，加筋土结构离震中较远，因此没有受到高地震荷载的影响。在日本建造的加筋土结构具有刚性面，与世界其他地区的加筋土结构不同。特别是在美国、土耳其和台湾普遍使用的模块化砌块面加筋土结构，在日本没有建造。因此，台湾和土耳其的地震提供了一个独特的机会来检查在美国常见的加筋土结构的性能。pi访问了台湾和土耳其的地震灾区，以识别受损的钢筋土结构，这与美国的专有系统类似。本研究拟与台湾及土耳其的研究人员及执业工程师合作，探讨失效机制。本研究拟在一年的时间框架内实现以下目标：评价台湾、土耳其地震中加筋土结构的抗震性能。2 .获取地震灾区加筋土结构的技术细节，包括墙体配置、配筋布置、土与配筋性能、地震特征等。评价已确定的加筋土结构的简化地震分析方法。4. 组织一次关于加筋土结构抗震设计问题的国际研讨会。5. 根据研究和研讨会的结果，对现有的设计程序提出改进建议。最近地震中加筋土结构的破坏可能表明现有的设计程序是不充分的。或者，它可能是设计/施工不当的结果。因此，拟议的研究将为美国和世界各地的研究人员和实践工程师带来重大的技术利益。