EAPSI: Evaluating the Seismic Performance of a New Building 'spine' Technology

EAPSI：评估新型建筑“脊柱”技术的抗震性能

• 批准号: 1515264
• 负责人: Barbara Simpson
• 金额: $ 0.51万
• 依托单位: Simpson Barbara G
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-06-01 至 2016-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1515264&HistoricalAwards=false
• 关键词: EAPSI; Evaluating; Seismic; Performance; New

Many contemporary buildings tend to form a soft story mechanism during an earthquake. This behavior is characterized by large demands concentrated in a single story of the building. These demands can ultimately limit the capacity of the entire system and increase both structural and nonstructural damage, leading to structural collapse. This award supports research to develop the merits of a relatively new 'spine' system. The new system utilizes a spine that ties all the stories in a building together, forcing them to behave as one unit so that damage is not permitted to concentrate in a single story. If effective, this system could become essential for suitable structural performance during seismic events. This project will be conducted at National Taiwan University in Taipei, Taiwan under the mentorship of Professor K.C. Tsai, a noted expert on innovative steel building systems.This study will attempt to quantify the relationship between the use of a spine and its ability to mitigate a soft story. There has been little research internationally addressing the specific details of the spine concept and how to implement a spine into design practice. The purpose of this study would be to address the following questions about a spine system: (1) What is the effect of allowing yielding in the mast rather than designing it to be completely elastic? (2) What is the effect on the system if the inelastic portion outside of the mast is significantly damaged and exhibits substantial deterioration during a seismic event? (3) What is the resiliency of the system in terms of the amount of residual drift associated with a mast system after an event? Special emphasis will be placed on the first of these questions. This NSF EAPSI award supports the research of a U.S. graduate student and is funded in collaboration with the Ministry of Science and Technology of Taiwan.

许多当代建筑在地震期间倾向于形成一种软故事机制。这种行为的特征是大需求集中在建筑物的单个故事中。这些需求最终可以限制整个系统的能力，并增加结构和非结构性损害，从而导致结构崩溃。该奖项支持研究，以发展相对较新的“脊柱”系统的优点。新系统利用脊柱将建筑物中的所有故事联系在一起，迫使它们作为一个单元的行为，因此不允许损害集中在一个故事中。如果有效，该系统对于地震事件中的合适结构性能可能至关重要。该项目将在K.C.教授的指导下在台湾台北的台湾大学进行。 Tsai是创新钢制建筑系统的著名专家。这项研究将试图量化使用脊柱的使用与减轻软故事的能力之间的关系。国际上很少有研究解决脊柱概念的具体细节以及如何将脊柱实施到设计实践中。这项研究的目的是解决有关脊柱系统的以下问题：（1）允许在桅杆中屈服而不是设计它完全弹性的影响是什么？ （2）如果桅杆外部的非弹性部分受到显着损坏，并且在地震事件中表现出很大的恶化，对系统会有什么影响？ （3）事件发生后与桅杆系统相关的残余漂移量，系统的弹性是多少？特别重点将放在这些问题的第一个问题上。该NSF EAPSI奖支持美国研究生的研究，并与台湾科学技术部合作资助。