Identification and Modeling of Earthdam Response During Northridge, January 17, 1994 and Previous Earthquakes
1994 年 1 月 17 日北岭地震和之前地震期间的土坝响应识别和建模
基本信息
- 批准号:9416248
- 负责人:
- 金额:$ 6万
- 依托单位:
- 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:
- 关键词:
项目摘要
9416248 Elgamal Earthquake acceleration histories were recorded on and around eight well instrumented earth dams within a 50 mile radius of the 1994 Northridge earthquake epicenter. These dams were also subjected to strong ground shaking during the 1971 San Fernando, and the 1987 Whittier earthquakes. A large data set of valuable input and response acceleration histories is currently available (Northridge, Whittier, and San Fernando earthquakes) for calibration and verification of simplified as well as elaborate computational analysis procedures. Past analyses of the San Fernando and Whittier recorded accelerations have significantly contributed to our understanding of earth dam seismic response mechanisms; contributions which were possible only through analyses of actual full-scale seismic response. The recently recovered Northridge acceleration histories offer a unique opportunity to build on the results of thorough studies conducted earlier for the Santa Felicia, Puddingstone, Cogswell and Brea dams. The objective of this project is to: (i) conduct a predictive (Class A/B) computational analysis for each dam using the dynamic properties identified earlier from the San Fernando and/or Whittier earthquakes, (ii) critically assess the previously identified earth dam characteristics in view of the newly acquired Northridge data set (of different shaking amplitudes and frequency contents), (iii) define simplified analysis/design procedures, and clearly identify any associated limitations and/or strengths, and (iv) document the identified properties in a database form that includes a large number of modern earth/rockfill dams in Northern California (Lexington, Anderson and Long Valley dams), Southern California (Santa Felicia, Puddingstone, and Brea dams), and Mexico (La Vilita and El Infiernillo dams). ***
在1994年北岭地震震中半径50英里范围内的8座仪器齐全的土坝上和周围记录了9416248次埃尔伽马尔地震的加速历史。这些大坝在1971年的圣费尔南多地震和1987年的惠蒂尔地震中也遭受了强烈的地面震动。目前已有大量有价值的输入和响应加速度历史数据集(北岭、惠蒂埃和圣费尔南多地震),用于校准和验证简化和复杂的计算分析程序。过去对圣费尔南多和惠蒂埃记录的加速度的分析极大地促进了我们对土坝地震响应机制的理解;这些贡献只有通过分析实际的全尺寸地震响应才可能实现。最近恢复的北岭加速历史提供了一个独特的机会,可以在早些时候对圣费利西亚、布丁斯通、科格斯韦尔和布雷亚大坝进行的彻底研究结果的基础上再接再厉。本项目的目标是:(1)使用早先从圣费尔南多和/或惠蒂埃地震中确定的动力特性对每个大坝进行预测性(A/B级)计算分析;(2)鉴于新获得的北岭数据集(具有不同的震动幅度和频率内容),对以前确定的土坝特性进行严格评估;(3)定义简化的分析/设计程序,并清楚地确定任何相关的限制和/或强度;以及(4)以数据库的形式记录已确定的特性,其中包括加利福尼亚州北部的大量现代土石坝(列克星顿、安德森和长谷大坝),南加州(Santa Felicia、Puddingstone和Brea大坝)和墨西哥(La Vilita和El Infiernillo大坝)。***
项目成果
期刊论文数量(0)
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Ahmed Elgamal其他文献
Seismic performance evaluation of a pile-supported wharf system at two seismic hazard levels
两种地震危险等级下桩承式码头系统的抗震性能评估
- DOI:
10.1016/j.oceaneng.2020.108333 - 发表时间:
2020-11 - 期刊:
- 影响因子:5
- 作者:
Lei Su;Huaping Wan;Jinchi Lu;Xianzhang Ling;Ahmed Elgamal;Arul K. Arulmoli - 通讯作者:
Arul K. Arulmoli
Finite Element Response Sensitivity Analysis of a Multi-Yield-Surface J2 Plasticity Model by Direct Differentiation Method
直接微分法多屈服面J2塑性模型的有限元响应灵敏度分析
- DOI:
- 发表时间:
- 期刊:
- 影响因子:7.2
- 作者:
Quan Gu;Joel P. Conte;Zhaohui Yang;Ahmed Elgamal - 通讯作者:
Ahmed Elgamal
Evaluation of structural condition using Wavelet transforms
使用小波变换评估结构状况
- DOI:
- 发表时间:
2008 - 期刊:
- 影响因子:0
- 作者:
Koichi Kusunoki;Ahmed Elgamal;Masaomi Teshigawara;Joel P. Conte - 通讯作者:
Joel P. Conte
Seismic performance of U-shaped spillway retaining wall from shake table tests
- DOI:
10.1016/j.soildyn.2023.108020 - 发表时间:
2023-09-01 - 期刊:
- 影响因子:
- 作者:
Kyungtae Kim;Mokhtar A. Khalifa;M. Hesham El Naggar;Ahmed Elgamal - 通讯作者:
Ahmed Elgamal
Seismic fragility analysis of pile-supported wharves with the influence of soil permeability
土体渗透率影响下桩承式码头地震易损性分析
- DOI:
10.1016/j.soildyn.2019.04.003 - 发表时间:
2019-07 - 期刊:
- 影响因子:4
- 作者:
Lei Su;Huaping Wan;Kaiming Bi;Yong Li;Jinchi Lu;Xianzhang Ling;Ahmed Elgamal;Arul K. Arulmoli - 通讯作者:
Arul K. Arulmoli
Ahmed Elgamal的其他文献
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{{ truncateString('Ahmed Elgamal', 18)}}的其他基金
US-Egypt Cooperative Research: Seismic Risk Assessment of Wind Turbine Towers in Zafarana Wind Farm Egypt
美埃合作研究:埃及扎法拉纳风电场风力发电机塔架地震风险评估
- 批准号:
1445712 - 财政年份:2014
- 资助金额:
$ 6万 - 项目类别:
Standard Grant
Sustainability and Performance-Based Ground Stabilization Assessment
可持续性和基于性能的地面稳定评估
- 批准号:
1201195 - 财政年份:2012
- 资助金额:
$ 6万 - 项目类别:
Standard Grant
NEESR-II: A Seismic Study of Wind Turbines for Renewable Energy
NEESR-II:可再生能源风力涡轮机的地震研究
- 批准号:
0830422 - 财政年份:2008
- 资助金额:
$ 6万 - 项目类别:
Standard Grant
Collaborative Research: Full Size Experiments and Centrifuge Physical Models of Pile Foundations Subjected to Lateral Spreading: Comparative Study and Engineering Interpretation
合作研究:横向扩展桩基的全尺寸试验和离心机物理模型:比较研究和工程解释
- 批准号:
0200510 - 财政年份:2002
- 资助金额:
$ 6万 - 项目类别:
Standard Grant
ITR: Collaborative Research: An Integrated Framework for Health Monitoring of Highway Bridges and Civil Infrastructure
ITR:合作研究:公路桥梁和民用基础设施健康监测的综合框架
- 批准号:
0205720 - 财政年份:2002
- 资助金额:
$ 6万 - 项目类别:
Continuing Grant
Interactive Web-Based Experimental and Computational Learning Environments for Earthquake Engineering Research and Education
用于地震工程研究和教育的基于网络的交互式实验和计算学习环境
- 批准号:
0088130 - 财政年份:2000
- 资助金额:
$ 6万 - 项目类别:
Standard Grant
Collaborative Research; ParCYCLIC: Internet-Enabled Simulation of Earthquake Liquefaction Response on Parallel Computers
合作研究;
- 批准号:
0084616 - 财政年份:2000
- 资助金额:
$ 6万 - 项目类别:
Standard Grant
Equipment for UCSD Geotechnical Centrifuge Laboratory
加州大学圣地亚哥分校岩土离心机实验室设备
- 批准号:
9987827 - 财政年份:2000
- 资助金额:
$ 6万 - 项目类别:
Standard Grant
Analysis of Hualien Downhole Seismic Records
花莲井下地震记录分析
- 批准号:
9527375 - 财政年份:1995
- 资助金额:
$ 6万 - 项目类别:
Standard Grant
REG: Equipment for Contruction of Soil Models for Geotechnical Centrifuge Testing
REG:用于土工离心机测试的土壤模型构建设备
- 批准号:
9311277 - 财政年份:1994
- 资助金额:
$ 6万 - 项目类别:
Standard Grant
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