Asce-Asme Journal of Risk and Uncertainty in Engineering Systems Part A-Civil Engineering最新文献_第10页

Earthquake Risk of Gas Pipelines in the Conterminous United States and Its Sources of Uncertainty 美国邻近地区天然气管道的地震风险及其不确定性来源

IF 2.5 3区工程技术

Asce-Asme Journal of Risk and Uncertainty in Engineering Systems Part A-Civil Engineering Pub Date : 2022-03-01 DOI: 10.1061/ajrua6.0001202

N. S. Kwong, K. Jaiswal, J. Baker, N. Luco, K. Ludwig, Vasey J. Stephens

{"title":"Earthquake Risk of Gas Pipelines in the Conterminous United States and Its Sources of Uncertainty","authors":"N. S. Kwong, K. Jaiswal, J. Baker, N. Luco, K. Ludwig, Vasey J. Stephens","doi":"10.1061/ajrua6.0001202","DOIUrl":"https://doi.org/10.1061/ajrua6.0001202","url":null,"abstract":"Relatively little research has been conducted to systematically quantify the nationwide earthquake risk of gas pipelines in the United States; simultaneously, national guidance is limited for operators across the country to consistently evaluate earthquake risk of their assets. Furthermore, many challenges and uncertainties exist in a comprehensive seismic risk assessment of gas pipelines. As a first stage in a systematic nationwide assessment, we quantify the earthquake risk of gas transmission pipelines in the conterminous United States due to strong ground shaking, including the associated uncertainties. Specifically, we integrate the U.S. Geological Survey 2018 National Seismic Hazard Model, a logic tree-based exposure model, three different vulnerability models, and a consequence model. The results enable comparison against other risk assessment efforts, encourage more transparent deliberation regarding alternative approaches, and facilitate decisions on potentially assessing localized risks due to ground failures that require site-specific data. Based on the uncertainties approximated herein, the resulting sensitivity analyses suggest that the vulnerability model is the most influential source of uncertainty. Finally, we highlight research needs such as (i) developing more vulnerability models for regional seismic risk assessment of gas pipelines, (ii) identifying, prioritizing, and measuring input pipeline attributes that are important for estimating seismic damage, and (iii) better quantifying seismic hazards with their uncertainties at the national scale, for both ground failures and ground shaking.","PeriodicalId":48571,"journal":{"name":"Asce-Asme Journal of Risk and Uncertainty in Engineering Systems Part A-Civil Engineering","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78991178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Simulation-Based Environmental Risk Analysis of Mixed Traffic Flow at Intersections 基于仿真的交叉口混合交通流环境风险分析

IF 2.5 3区工程技术

Asce-Asme Journal of Risk and Uncertainty in Engineering Systems Part A-Civil Engineering Pub Date : 2022-01-01 DOI: 10.1061/ajrua6.0001264

Weiwei He, Liang Wang, Cheng Xu

引用次数: 0

Robust Optimization Method for Mountain Railway Alignments Considering Preference Uncertainty for Costs and Seismic Risks 考虑成本和地震风险偏好不确定性的山地铁路线路鲁棒优化方法

IF 2.5 3区工程技术

Asce-Asme Journal of Risk and Uncertainty in Engineering Systems Part A-Civil Engineering Pub Date : 2022-01-01 DOI: 10.1061/ajrua6.0001207

Taoran Song, Hao Pu, P. Schonfeld, Jianping Hu, Jiangtao Liu

引用次数: 9

Probabilistic Optimum Bridge System Maintenance Management Considering Correlations of Deteriorating Components and Service Life Extensions 考虑退化部件与寿命延长相关性的桥梁系统维修管理的概率优化

IF 2.5 3区工程技术

Asce-Asme Journal of Risk and Uncertainty in Engineering Systems Part A-Civil Engineering Pub Date : 2022-01-01 DOI: 10.1061/ajrua6.0001235

Sunyong Kim, Baixue Ge, D. Frangopol

引用次数: 1

Modified Best-Selection Method for Bridge Live-Load Model Development 改进的桥梁活载模型优选方法

IF 2.5 3区工程技术

Asce-Asme Journal of Risk and Uncertainty in Engineering Systems Part A-Civil Engineering Pub Date : 2022-01-01 DOI: 10.1061/ajrua6.0001248

Sasan Siavashi, C. Eamon

引用次数: 1

Adaptive Monte Carlo Simulation Method and Its Applications to Reliability Analysis of Series Systems with a Large Number of Components 自适应蒙特卡罗仿真方法及其在多部件串联系统可靠性分析中的应用

IF 2.5 3区工程技术

Asce-Asme Journal of Risk and Uncertainty in Engineering Systems Part A-Civil Engineering Pub Date : 2022-01-01 DOI: 10.1061/ajrua6.0001200

Xin Liu, Z. Cao, Dian-Qing Li, Yu Wang

引用次数: 2

Reliability-Based Structural Design of Retaining Walls Supporting Spatially Variable Soils 基于可靠性的空间变土挡土墙结构设计

IF 2.5 3区工程技术

Asce-Asme Journal of Risk and Uncertainty in Engineering Systems Part A-Civil Engineering Pub Date : 2022-01-01 DOI: 10.1061/ajrua6.0001240

Batoul Tarhini, Ahmad Kahiel, S. Najjar, S. Sadek

{"title":"Reliability-Based Structural Design of Retaining Walls Supporting Spatially Variable Soils","authors":"Batoul Tarhini, Ahmad Kahiel, S. Najjar, S. Sadek","doi":"10.1061/ajrua6.0001240","DOIUrl":"https://doi.org/10.1061/ajrua6.0001240","url":null,"abstract":"design of retaining walls is affected by spatial variability in the properties of the retained backfill and the foundation soil. In practice, the conventional approach for designing retaining walls is deterministic in nature and is based on ensuring acceptable design factors of safety for different limit states of wall failure. The only exception is the design method that is available in Eurocode 7, where partial load and resistance factors have been recommended to ensure a target level of safety in the design. Although these codes are considered to include the uncertainties in the design load and capacity, the recommended partial safety factors may not realistically incorporate the impact of spatial variability in the properties of the supported backfill and foundation soil on the design, since the calibration studies that were conducted to determine the safety factors were not based on realistic random field modeling of the soils involved. In addition, existing reliability-based design approaches for retaining walls focus on the failure in the soil and do not include design aspects of the structural behavior of the wall. The main objective of this thesis is to quantify the level of risk associated with the design of a cantilever retaining wall using the conventional deterministic design approaches and approaches that are based on partial factors of safety (ex. Eurocode 7). The objective will be attained by utilizing random fields that represent the variability in the backfill and foundation soils in the finite difference software FLAC 2D ® . The effect of the properties of the random field on the design of the retaining wall will then be investigated to provide recommendations that would aid the design of cantilever walls supporting cohesionless backfill.","PeriodicalId":48571,"journal":{"name":"Asce-Asme Journal of Risk and Uncertainty in Engineering Systems Part A-Civil Engineering","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79093105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Multihazard Risk Model for Reliability Analysis of Expansive Soil Landslide Based on T–S Fuzzy Logic 基于T-S模糊逻辑的膨胀土滑坡多灾害可靠度分析模型

IF 2.5 3区工程技术

Asce-Asme Journal of Risk and Uncertainty in Engineering Systems Part A-Civil Engineering Pub Date : 2022-01-01 DOI: 10.1061/ajrua6.0001225

J. Lu, L. Kong, Xinyu Liu, Gang Wang

引用次数: 3

Managing Cost Risks in Oil and Gas Construction Projects: Root Causes of Cost Overruns 油气建设项目成本风险管理:成本超支的根本原因

IF 2.5 3区工程技术

Asce-Asme Journal of Risk and Uncertainty in Engineering Systems Part A-Civil Engineering Pub Date : 2022-01-01 DOI: 10.1061/ajrua6.0001193

I. Esmaeili, H. Kashani

引用次数: 3

Failure Probability of an Optimally Designed Gravity Retaining Wall 重力式挡土墙优化设计失效概率分析

IF 2.5 3区工程技术

Asce-Asme Journal of Risk and Uncertainty in Engineering Systems Part A-Civil Engineering Pub Date : 2022-01-01 DOI: 10.1061/ajrua6.0001223

R. Varga, P. Jelušič

引用次数: 1