RAPID/Collaborative Research: The Effects of the 2017 Central Mexico Earthquake on Reinforced Concrete Buildings
RAPID/合作研究:2017 年墨西哥中部地震对钢筋混凝土建筑的影响
基本信息
- 批准号:1810907
- 负责人:
- 金额:$ 1.98万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2018
- 资助国家:美国
- 起止时间:2018-01-01 至 2018-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This Grant for Rapid Response Research (RAPID) will support a collaborative team of researchers from five U.S. universities to collect data to document the performance of reinforced concrete buildings during the Puebla-Morelos, Mexico earthquake of September 19, 2017. The ground shaking from this earthquake caused widespread damage to buildings in the epicentral region, as well as in Mexico City (approximately 120 kilometers from the epicenter). In Mexico City, approximately 40 buildings collapsed, and over one thousand structures have been identified with moderate to major structural damage. The 2017 earthquake, having impacted an area that had already been shaken by a strong earthquake in 1985, provides an opportunity to learn about the effectiveness of reinforced concrete building repairs and retrofits made after the 1985 earthquake, as well as an opportunity to study how modern and older, unrepaired reinforced concrete buildings performed during strong ground motion. The majority of collapsed buildings were constructed prior to 1985 before there were major seismic revisions to building codes. There were also a few cases of newer and retrofitted buildings that also sustained damage. Mexico City has soil conditions ranging from stiff rock to very soft soil, producing a diverse set of ground conditions affecting buildings that can facilitate understanding of seismic building performance not only in Mexico, but also in the United States. Because the United States and Mexico have similarities in reinforced concrete building construction, the collected data from this earthquake will contribute to better building design and performance assessment methods, numerical simulation methods, and earthquake intensity indices in both countries, and help foster safer buildings and more earthquake-resilient communities. The collected data will be archived and made publicly available in the NSF-supported Natural Hazards Engineering Research Infrastructure, Data Depot and Reconnaissance Integration Portal (http://wwww.DesignSafe-ci.org). Graduate students will participate in the data collection and gain valuable post-earthquake field experience. The project team will disseminate its data collection and research findings through a webinar. The goal of this RAPID project is to collect perishable data on reinforced concrete building damage that can be used towards understanding and improving seismic performance of buildings and the resilience of communities in the United States. The data collection in Mexico will be conducted in collaboration with researchers and engineers in Mexico and include the following activities: (1) survey buildings built near recording stations with emphasis on retrofitted buildings, buildings that survived the 1985 earthquake, and modern buildings, (2) document damage to non-ductile reinforced concrete buildings for calibration of existing methodologies used to identify vulnerable buildings in the United States, (3) map damage to test commonly assumed correlations with earthquake intensity indices such as peak ground acceleration, peak ground velocity, peak ground displacement, and peak or discrete spectral values of acceleration, velocity and displacement, (4) document the performance of instrumented and base-isolated buildings, (5) deploy accelerometers on damaged and undamaged reinforced concrete buildings with and without retrofits to record ambient vibrations and obtain building dynamic properties, (6) evaluate numerical models of reinforced concrete buildings by subjecting them to ground motion records obtained nearby and compare the numerical estimates and observed performance, and (7) study relationships between building performance and soil conditions.
快速反应研究(RAPID)将支持来自五所美国大学的研究人员合作团队收集数据,以记录2017年9月19日墨西哥普埃布拉-莫雷洛斯地震期间钢筋混凝土建筑的性能。 地震造成的地面震动对震中地区以及墨西哥城(距离震中约120公里)的建筑物造成了广泛的破坏。墨西哥城约有40座建筑物倒塌,超过1000座建筑物被确认有中度至严重的结构性损坏。 2017年的地震影响了一个已经在1985年发生强烈地震的地区,提供了一个机会来了解1985年地震后钢筋混凝土建筑维修和改造的有效性,以及一个机会来研究现代和旧的,未修复的钢筋混凝土建筑在强地面运动中的表现。大多数倒塌的建筑物是在1985年之前建造的,当时建筑规范还没有进行重大的地震修订。 还有一些较新和经过改造的建筑物也遭到破坏。 墨西哥城的土壤条件从坚硬的岩石到非常软的土壤,产生了一系列影响建筑物的各种地面条件,这些条件不仅可以促进对墨西哥建筑物抗震性能的理解,而且可以促进对美国建筑物抗震性能的理解。 由于美国和墨西哥在钢筋混凝土建筑方面有相似之处,此次地震收集的数据将有助于两国更好的建筑设计和性能评估方法、数值模拟方法以及地震烈度指标,并有助于培育更安全的建筑和更具抗震能力的社区。 收集到的数据将在NSF支持的自然灾害工程研究基础设施、数据仓库和侦察集成门户网站(http://www.example.com)中存档并公开提供。wwww.DesignSafe-ci.org 研究生将参与数据收集,并获得宝贵的震后现场经验。 项目小组将通过网络研讨会传播其数据收集和研究结果。 这个快速项目的目标是收集有关钢筋混凝土建筑损坏的易腐数据,这些数据可用于了解和改善美国建筑物的抗震性能和社区的复原力。墨西哥的数据收集将与墨西哥的研究人员和工程师合作进行,包括以下活动:(1)调查记录站附近的建筑物,重点是改建建筑物,1985年地震幸存的建筑物和现代建筑物,(2)文件损坏非-延性钢筋混凝土建筑物,用于校准美国用于识别脆弱建筑物的现有方法,(3)将损坏映射到测试通常假设的与地震强度指标的相关性,例如峰值地面加速度、峰值地面速度、峰值地面位移以及加速度、速度和位移的峰值或离散谱值,(4)记录仪器化和基础隔震建筑物的性能,(5)在有和没有加固的受损和未受损钢筋混凝土建筑物上部署加速度计,以记录环境振动并获得建筑物的动力特性,(6)通过使钢筋混凝土建筑物受到附近获得的地震动记录来评估它们的数值模型,并将数值估计与观测性能进行比较,以及(7)研究建筑物性能与土壤条件之间的关系。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Gilberto Mosqueda其他文献
免震構造の擁壁衝突時の挙動 その10:弾性・弾塑性擁壁との衝突時の上部構造の応答に与える影響
隔震结构与挡土墙碰撞时的性能第10部分:与弹性/弹塑性挡土墙碰撞时对上部结构响应的影响
- DOI:
- 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
福井弘久;藤谷秀雄;向井洋一;伊藤麻衣;Gilberto Mosqueda;福井弘久;宮本郷生 - 通讯作者:
宮本郷生
免震建物の擁壁衝突時の応答評価に関する考察
隔震建筑挡土墙碰撞反应评价的思考
- DOI:
- 发表时间:
2019 - 期刊:
- 影响因子:0
- 作者:
福井弘久;藤谷秀雄;向井洋一;伊藤麻衣;Gilberto Mosqueda;福井弘久;宮本郷生;Hirohisa FUKUI;Hirohisa FUKUI;福井弘久 - 通讯作者:
福井弘久
免震構造の擁壁衝突時の上部構造の応答評価と力積を用いた解析
隔震结构挡土墙碰撞上部结构响应评估及脉冲分析
- DOI:
- 发表时间:
2019 - 期刊:
- 影响因子:0
- 作者:
福井弘久;藤谷秀雄;向井洋一;伊藤麻衣;Gilberto Mosqueda - 通讯作者:
Gilberto Mosqueda
Considerations for modeling of base isolated nuclear power plants subjected to beyond design basis shaking
- DOI:
10.1016/j.nucengdes.2021.111236 - 发表时间:
2021-08-01 - 期刊:
- 影响因子:
- 作者:
Alireza Sarebanha;Joaquin Marquez;Patrick Hughes;Gilberto Mosqueda - 通讯作者:
Gilberto Mosqueda
力積を用いた時刻歴応答解析による免震建物の衝突時応答評価
使用脉冲时程响应分析评估隔震建筑物的碰撞响应
- DOI:
- 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
福井弘久;藤谷秀雄;向井洋一;伊藤麻衣;Gilberto Mosqueda - 通讯作者:
Gilberto Mosqueda
Gilberto Mosqueda的其他文献
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{{ truncateString('Gilberto Mosqueda', 18)}}的其他基金
CAREER: Hybrid Simulation Platform for Seismic Performance Evaluation of Structures Through Collapse
职业:通过倒塌评估结构抗震性能的混合模拟平台
- 批准号:
0748111 - 财政年份:2008
- 资助金额:
$ 1.98万 - 项目类别:
Standard Grant
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