ce/papers最新文献_第2页

Blind Predictions and Uncertainty in the Simulation of Reinforced Concrete Structures 钢筋混凝土结构模拟中的盲目预测和不确定性

ce/papers Pub Date : 2025-09-05 DOI: 10.1002/cepa.3354

Jan Cervenka, Vladimir Cervenka, Jiri Rymes, Jiri Kovar

引用次数: 0

Statistical procedures to quantify the influence of quality control in component properties: A methodology for structural safety assessments 量化构件特性质量控制影响的统计程序：结构安全评估的方法

ce/papers Pub Date : 2025-09-05 DOI: 10.1002/cepa.3330

Tânia Feiri, Til Lux, Jan Schulze-Ardey, Josef Hegger, Martin Claßen, Marcus Ricker

{"title":"Statistical procedures to quantify the influence of quality control in component properties: A methodology for structural safety assessments","authors":"Tânia Feiri, Til Lux, Jan Schulze-Ardey, Josef Hegger, Martin Claßen, Marcus Ricker","doi":"10.1002/cepa.3330","DOIUrl":"https://doi.org/10.1002/cepa.3330","url":null,"abstract":"In structural safety assessments, the selection of suitable parameters for stochastic models of component properties — such as concrete compressive strength or geometric dimensions — is a prime requirement. During their production, several quality control strategies are adopted to verify the specified value of diverse properties of structural members. Bayesian statistics form a suitable basis for updating the statistical distribution parameters when input from quality control is available. Previous work in the field of concrete compressive strength has demonstrated that such strategies introduce a filtering effect on the stochastic description of concrete strength distribution, which may have a positive influence on the resulting safety level. However, a generic approach applicable to a wider scope of properties remains to be established. This paper offers a methodology to update the distributional parameters based on input from quality control and further integration in safety assessments. By considering the filtering effect of quality control on the distributions of material properties, the proposed methodology aims to assist practitioners to unlock existing safety margins in structural design and, thus, propose more material and resource efficient solutions.","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 3-4","pages":"97-107"},"PeriodicalIF":0.0,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cepa.3330","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing Risk Communication: Interactive and Web-Hosted Tools for Visualising Quantitative Risk and Reliability 加强风险沟通：可视化定量风险和可靠性的交互式和网络托管工具

ce/papers Pub Date : 2025-09-05 DOI: 10.1002/cepa.3335

Paul-Remo Wagner, Matthias Schubert

{"title":"Enhancing Risk Communication: Interactive and Web-Hosted Tools for Visualising Quantitative Risk and Reliability","authors":"Paul-Remo Wagner, Matthias Schubert","doi":"10.1002/cepa.3335","DOIUrl":"https://doi.org/10.1002/cepa.3335","url":null,"abstract":"Conveying risk and reliability metrics to non-experts is hard because probabilities and expected monetary losses often lie far outside everyday intuition. This paper looks at interactive web-hosted tools as a means to alleviate this problem by comparing three existing tools to distil design guidance: a digital handbook for reliability predictions in space applications, a cloud inspection-planning app for deteriorating structures, and a municipal fire-risk platform. Each tool is evaluated against six recurrent themes: visualisation, interactivity, accessibility, maintainability, gamification, personalisation. Findings show that rich graphics plus direct parameter control are the entry ticket for engagement, while responsive web delivery and automated versioning keep analyses current and traceable. Light gamified cues (progress bars) and context-aware content (local response times) further motivate users but must be applied sparingly to preserve credibility and privacy. We outline an evolutionary path from searchable digital handbooks through parameter-driven calculators to map-centred dashboards and demonstrate that well-crafted interactivity transforms static risk reports into exploratory tools that enable genuinely risk-informed decisions across diverse engineering domains.","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 3-4","pages":"416-422"},"PeriodicalIF":0.0,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of the distribution function on the statistical scatter adjustment of the number of cycles to failure of concrete under fatigue 分布函数对混凝土疲劳破坏循环次数统计散点调整的影响

ce/papers Pub Date : 2025-09-05 DOI: 10.1002/cepa.3338

Sören Voß, Raúl Enrique Beltrán Gutiérrez, Steffen Marx

{"title":"Influence of the distribution function on the statistical scatter adjustment of the number of cycles to failure of concrete under fatigue","authors":"Sören Voß, Raúl Enrique Beltrán Gutiérrez, Steffen Marx","doi":"10.1002/cepa.3338","DOIUrl":"https://doi.org/10.1002/cepa.3338","url":null,"abstract":"Experimentally determined number of cycles to failure of concrete specimens exhibit significant scatter due to various influencing factors. Previous studies have identified the scatter in compressive strength as a primary factor affecting the scatter of the number of cycles to failure. To address this issue, a statistical approach was applied to correct the stress levels to account for the influence of the compressive strength scatter. This correction significantly reduced the scatter in the number of cycles to failure, improving the reliability of fatigue assessments.A database of fatigue tests from the literature was compiled, and the stress levels were corrected, resulting in a significant reduction in the scatter of the number of cycles to failure. A normal distribution was assumed for the logarithmic number of cycles to failure. In addition to the normal distribution, the log-normal distribution and the Weibull distribution were also found to be suitable. The choice of distribution function had only a minor influence on the corrected stress levels. This is shown by the comparison of confidence intervals. These findings contribute to a more precise fatigue assessment methodology, facilitating more sustainable and economical structural design.","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 3-4","pages":"169-176"},"PeriodicalIF":0.0,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cepa.3338","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Streamlining risk identification and mitigation in mechanized tunneling 简化机械化隧道掘进的风险识别和降低

ce/papers Pub Date : 2025-09-05 DOI: 10.1002/cepa.3343

Tobias Zabernig, Hannah Salzgeber, Matthias Flora

引用次数: 0

Variability in the predicted maximum acceleration of non-structural components anchored to concrete buildings subjected to earthquake demands 在地震条件下，锚定在混凝土建筑物上的非结构构件预测最大加速度的变化

ce/papers Pub Date : 2025-09-05 DOI: 10.1002/cepa.3349

Patricio Quintana Gallo, Panagiotis Spyridis, Stefano Pampanin

{"title":"Variability in the predicted maximum acceleration of non-structural components anchored to concrete buildings subjected to earthquake demands","authors":"Patricio Quintana Gallo, Panagiotis Spyridis, Stefano Pampanin","doi":"10.1002/cepa.3349","DOIUrl":"https://doi.org/10.1002/cepa.3349","url":null,"abstract":"Non-structural components (NSC) are an important part of reinforced concrete (RC) buildings. Their damage constitutes a large portion of the losses encountered by these structures after moderate-severe earthquakes, as well as after more frequent ones. Most, if not all, of the current standards for the design of acceleration-sensitive NSC make use of floor acceleration response spectra, thereby neglecting the influence of the anchorage hysteresis behaviour on their response. Only a few studies have included such an effect on the numerical evaluation of the maximum acceleration reached by NSC anchored to RC buildings. These studies showed that, for single-anchor connections, if the shear hysteresis of the anchorage is included, the maximum acceleration of the NSC and the maximum force of the anchor itself can significantly exceed the design demands computed with design codes. Moreover, the latest study on this topic showed that a very large degree of variability is encountered in the results, depending on the earthquake record used, and of the type of anchor considered. This paper focuses on such a variability – threated as epistemic uncertainty - in the predicted numerical results, showing how, for achieving a given probability of exceedance threshold, the design values might be much larger than those anticipated by the codes or even than the average numerical results. It is shown that if the tolerance gap of the anchorage is reduced or filled in, such a variability/uncertainty decreases considerably.","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 3-4","pages":"298-307"},"PeriodicalIF":0.0,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cepa.3349","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From clustering to classification: An uncertainty analysis of a classification approach using a Gaussian mixture model 从聚类到分类：使用高斯混合模型的分类方法的不确定性分析

ce/papers Pub Date : 2025-09-05 DOI: 10.1002/cepa.3346

Nils Soeren Krause

引用次数: 0

Uncertainties of a light RC specimen construction for shaking table test 振动台试验轻型RC试件结构的不确定度

ce/papers Pub Date : 2025-09-05 DOI: 10.1002/cepa.3313

Dietlinde Köber, Christoph Butenweg, Philippe Mongabure

{"title":"Uncertainties of a light RC specimen construction for shaking table test","authors":"Dietlinde Köber, Christoph Butenweg, Philippe Mongabure","doi":"10.1002/cepa.3313","DOIUrl":"https://doi.org/10.1002/cepa.3313","url":null,"abstract":"One of the first goals of earthquake protection is reducing the building weight. Less weight means less inertial forces and so less seismic energy for the structure to deal with. On the other hand, constructions of the future should reduce their environmental impact as much as possible. During almost 2 years a shaking table test at CEA Paris was planned. Financial support was offered by the Engineering Research Infrastructures for European Synergies (ERIES) program. Tests took place end of October 2024 on the AZALÉE shaking table. The specimen was a two stories structure having two spans in both main directions and a square plan shape. It was built almost entirely out of lightweight materials: lightweight concrete for slabs and beams and autoclaved aerated concrete (AAC) exterior and partition walls. Only the columns were built out of normal weight concrete. Multipurpose AAC blocks were used, joining thermal insulation properties, formwork for circular end columns and structural behavior. Several uncertainties were encountered during the specimen building stage and the establishment of the structural model. These uncertainties are presented and discussed in this paper.","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 3-4","pages":"135-143"},"PeriodicalIF":0.0,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Towards heat resilience of buildings: Heat impact analysis and transferability of adaptation strategies between Germany and Iran 建筑的热弹性：热影响分析和德国和伊朗之间适应策略的可转移性

ce/papers Pub Date : 2025-09-05 DOI: 10.1002/cepa.3355

Regine Ortlepp, Christoph Schünemann

{"title":"Towards heat resilience of buildings: Heat impact analysis and transferability of adaptation strategies between Germany and Iran","authors":"Regine Ortlepp, Christoph Schünemann","doi":"10.1002/cepa.3355","DOIUrl":"https://doi.org/10.1002/cepa.3355","url":null,"abstract":"Climate change introduces significant challenges for civil engineering, especially concerning heat resilience in buildings. This study investigates the susceptibility of buildings to heat waves and explores the transferability of adaptation strategies between Germany and Iran. Building resilience is shaped by factors such as architectural design, materials, and construction methods, requiring advanced thermal simulation models to understand building performance. The analysis integrates dynamic building performance simulations, accounting for physical properties, room usage schedules, and ventilation effects, along with meteorological data like temperature, wind, and solar radiation.By comparing the climatic conditions of Germany and Iran, the study reveals key differences in temperature patterns and their implications for building design. While both countries experience rising temperatures, Iran's climate is more stable, while Germany faces more significant seasonal fluctuations. The study also demonstrates how hourly temperature data can guide heat adaptation strategies, focusing on passive cooling in Germany and minimizing cooling energy demands in Iran. These findings underscore the importance of tailored adaptation measures, including urban planning, shading, and ventilation improvements, to enhance heat resilience in response to local climate conditions.","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 3-4","pages":"81-87"},"PeriodicalIF":0.0,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cepa.3355","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimal design of tuned mass dampers in structural dynamics under consideration of uncertainty 考虑不确定性的结构动力学调谐质量阻尼器优化设计

ce/papers Pub Date : 2025-09-05 DOI: 10.1002/cepa.3311

Thomas Most, Volkmar Zabel, Rohan Raj Das

引用次数: 0