Procedia Structural Integrity最新文献_第8页

Residual Prestressing Evaluation in HISCC-Prone Bridges: Full-Scale Loading at Lingelbach hiscc倾斜桥梁的残余预应力评估：Lingelbach全尺寸加载

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-09-29 DOI: 10.1016/j.prostr.2026.07.064

Lukas Bujotzek, Sergio Moriche Quesada, Martin Rudolf

{"title":"Residual Prestressing Evaluation in HISCC-Prone Bridges: Full-Scale Loading at Lingelbach","authors":"Lukas Bujotzek, Sergio Moriche Quesada, Martin Rudolf","doi":"10.1016/j.prostr.2026.07.064","DOIUrl":"10.1016/j.prostr.2026.07.064","url":null,"abstract":"<div><div>Hydrogen-induced stress corrosion cracking (HISCC), identified as the primary cause of the 2024 Carola Bridge collapse, underscores the urgent need for advanced assessment methods for aging prestressed concrete structures. For the Lingelbach Bridge in Hessen – containing HISCC-susceptible prestressing steel – analyses showed that the ‘crack-before-break’ criterion of the German HISCC guideline could not be satisfied due to the bridge’s high stiffness-to-span ratio and the resulting high cracking moments. A full-scale loading test was therefore planned to experimentally determine the residual prestressing reinforcement. The test concept involved incrementally increasing loads using self-propelled modular transporters (SPMTs), while the measuring concept consisted of fibre-optic sensors (FOS) attached to the bridge to monitor strain development and any onset of cracking throughout the structure. The experimentally derived prestressing reinforcement was intended to serve as the basis for a probabilistic verification of the ‘crack-before-break’ criterion. However, in-situ material investigations revealed an unexpectedly high concrete tensile strength, implying that cracking would only occur at substantially higher load levels than anticipated. To avoid potential structural or equipment damage, the planned loading test was ultimately cancelled. Despite this outcome, the methodology demonstrates the considerable potential of integrating analytical, probabilistic and experimental approaches and offers valuable insights for the assessment of complex, safety-critical bridge structures.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"85 ","pages":"Pages 222-229"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149067876","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

Fatigue assessment of railway noise barriers based on field monitoring, ML-driven stress prediction and numerical modeling 基于现场监测、机器学习驱动应力预测和数值模拟的铁路噪声屏障疲劳评估

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-09-29 DOI: 10.1016/j.prostr.2026.07.044

Dongyun Liu, Chao Wang, Jaime Gonzalez-Libreros, Lennart Elfgren, Gabriel Sas

{"title":"Fatigue assessment of railway noise barriers based on field monitoring, ML-driven stress prediction and numerical modeling","authors":"Dongyun Liu, Chao Wang, Jaime Gonzalez-Libreros, Lennart Elfgren, Gabriel Sas","doi":"10.1016/j.prostr.2026.07.044","DOIUrl":"10.1016/j.prostr.2026.07.044","url":null,"abstract":"<div><div>Railway noise barriers are frequently subjected to train-induced aerodynamic loads during long-term service, which may lead to fatigue problems at the welded base of steel posts. Conventional fatigue assessment methods often fail to account for the complex operational and environmental conditions experienced by real structures. To address this issue, this study proposes a fatigue evaluation framework that integrates long-term field monitoring data with machine learning (ML) and numerical simulation. Based on a field test database, a data-driven calculation model was developed to predict the stress responses of barrier steel posts under actual operational and environmental conditions. A finite element (FE) model validated by field data was further used to establish a quantitative relationship between the monitored stress responses and the maximum stress at the steel post base. Fatigue life for weld toe and weld root failure modes was evaluated using Palmgren-Miner linear damage rule and the nominal stress method in the Eurocode. Results show that weld root failure governs the fatigue performance of the steel post base, with significantly shorter fatigue lives than weld toe failure. Nose waves dominate fatigue damage, while tail waves still contribute about 14–23%. The fatigue life is also strongly influenced by train operating speeds and train type distribution, highlighting the importance of considering realistic train operating conditions in fatigue assessment and design. The proposed framework provides a practical and scalable tool for fatigue assessment and lifecycle maintenance planning of railway noise barrier systems.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"85 ","pages":"Pages 64-71"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149067896","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

Bio-inspired structures for energy efficiency 节能的仿生结构

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-02-17 DOI: 10.1016/j.prostr.2025.12.344

Petru Mihai Margitas , Liviu Marsavina , Cosmin Marsavina , Davide D’Andrea , Dario Santonocito , Giacomo Risitano

引用次数: 0

Fatigue behaviour of notched galvanized Strenx700E high-strength steel specimens 缺口镀锌Strenx700E高强度钢试样的疲劳性能

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-02-17 DOI: 10.1016/j.prostr.2025.12.343

A. Bacco , A. De Luca , S. Natali , F. Berto , R. Sepe

{"title":"Fatigue behaviour of notched galvanized Strenx700E high-strength steel specimens","authors":"A. Bacco , A. De Luca , S. Natali , F. Berto , R. Sepe","doi":"10.1016/j.prostr.2025.12.343","DOIUrl":"10.1016/j.prostr.2025.12.343","url":null,"abstract":"<div><div>High-strength steels (HSS), such as STRENX700E, are increasingly used in weight-sensitive structural applications due to their high specific strength. Typical uses include bridges, road infrastructure, offshore platforms and earth-moving machinery. Their superior mechanical properties result from thermomechanical processing, which involves hot rolling followed by quenching and tempering, improving strength while reducing residual stresses. However, like most steels, HSS are very sensitive to aggressive environments, particularly in proximity to salt water, coastal areas or marine environments. To preserve their mechanical integrity in such conditions, surface treatments such as galvanising are commonly applied to improve corrosion resistance. Despite its protective advantages, the influence of galvanising on the fatigue behaviour of HSS remains a critical issue, especially in components subjected to cyclic loads or with notches. To study the actual service conditions, constant amplitude fatigue tests were performed on specimens notched with a clean circular notch to evaluate the combined effects of geometry and galvanising. Given the high silicon content typical of STRENX700E, particular attention was paid to the interaction between the zinc coating and the steel substrate, especially regarding microcrack propagation and potential embrittlement due to the galvanising process. Surface finish was also considered, as surface deterioration can act as a crack initiation point and significantly reduce fatigue strength. These results provide valuable information for the design and maintenance of HSS structures exposed to cyclic loads in corrosive environments, supporting the development of more durable engineering solutions.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"79 ","pages":"Pages 342-347"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147406698","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

A Coverage Study on the Effect of Runouts on Confidence Intervals for Bilinear S-N Curves 跳动对双线性S-N曲线置信区间影响的覆盖研究

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-02-17 DOI: 10.1016/j.prostr.2025.12.346

Felix-Christian Reissner, Jörg Baumgartner

{"title":"A Coverage Study on the Effect of Runouts on Confidence Intervals for Bilinear S-N Curves","authors":"Felix-Christian Reissner, Jörg Baumgartner","doi":"10.1016/j.prostr.2025.12.346","DOIUrl":"10.1016/j.prostr.2025.12.346","url":null,"abstract":"<div><div>The statistical evaluation of S-N curves often involves censored data in the form of runouts. While the qualitative effect of runouts on parameter estimation is well understood, their influence on the width and reliability of confidence intervals has not been systematically quantified. This study focuses on the bilinear S-N curve model and investigates how varying proportions of runouts in the dataset influence the confidence intervals of key model parameters, including the stress and number of cycles at the knee point, as well as the slope parameters. Using maximum likelihood estimation within a probabilistic framework based on a log-normal distribution, a Monte Carlo simulation is performed in which the proportion of runouts is systematically varied. Confidence intervals are derived using the likelihood ratio method, which is particularly suitable for an appropriate treatment of runouts. This work provides a quantitative foundation for understanding the impact of runouts on uncertainty in bilinear S-N curve models and offers practical guidance for test planning and model interpretation in fatigue analysis.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"79 ","pages":"Pages 361-369"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147406700","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

Seismic vulnerability assessment of storage tanks in terms of loss of containment 储罐安全壳损失的地震易损性评估

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-02-17 DOI: 10.1016/j.prostr.2025.12.065

Alessio Bonelli , Mariano Ciucci , Gianluca Quinci , Fabrizio Paolacci

{"title":"Seismic vulnerability assessment of storage tanks in terms of loss of containment","authors":"Alessio Bonelli , Mariano Ciucci , Gianluca Quinci , Fabrizio Paolacci","doi":"10.1016/j.prostr.2025.12.065","DOIUrl":"10.1016/j.prostr.2025.12.065","url":null,"abstract":"<div><div>The chemical and process industries are increasingly subjected to NaTech events, technological disasters triggered by natural hazards such as earthquakes, floods or hurricanes. In this context, some of the most damaged equipment are storage tanks, which can be affected by high seismic vulnerability and containment of hazardous materials. In this regard, their failure often leads to the loss of containment (LoC) of hazardous substances, triggering domino effects such as explosions, environmental pollution, operational disruption, and business interruption.</div><div>A review of past seismic events reveals that some of the most common damage modes affecting unanchored tanks are elephant foot buckling, uplifting, and sliding. Particular attention is given to the latter, due to the notable lack of effort dedicated to understanding and modelling this specific failure mechanism, which is strongly associated with the relative displacement between the equipment and the ground. Based on these premises, this study proposes a fragility analysis focused on LoC scenarios triggered by seismic events specifically associated with the sliding mechanism of unanchored storage tanks. A simplified probabilistic approach is adopted, where the selected engineering demand parameter (EDP) is represented by the relative displacement between tank and ground, which is then correlated to the liquid release. Fragility curves in terms of probability of leakage are formulated using the Average spectral acceleration (SaAV) as intensity measure. This methodology aims at providing a practical tool for quantifying the seismic risk of sliding-induced LoC events, supporting their integration into Quantitative Risk Assessment (QRA) frameworks.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"78 ","pages":"Pages 505-512"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147408269","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

PERIL: a new platform for risk assessment and generation of insurance products risk：风险评估和保险产品生成的新平台

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-02-17 DOI: 10.1016/j.prostr.2025.12.069

Carpanese Pietro , Badin Luca , Follador Veronica , Saler Elisa , Donà Marco , da Porto Francesca

{"title":"PERIL: a new platform for risk assessment and generation of insurance products","authors":"Carpanese Pietro , Badin Luca , Follador Veronica , Saler Elisa , Donà Marco , da Porto Francesca","doi":"10.1016/j.prostr.2025.12.069","DOIUrl":"10.1016/j.prostr.2025.12.069","url":null,"abstract":"<div><div>According to UNISDR, Italy is ranked fourth in terms of average projected losses, making it one of the most susceptible nations to catastrophic natural disasters globally. Insurance coverage is still only a very small fraction of actual damages, much below the European average despite this substantial exposure. These considerations highlight the need to invest in risk awareness and in risk management processes carried out by insurance companies and policy makers. Therefore, this work aims to create a new platform, called PERIL, that incorporates a multi-risk assessment framework, digitizing traditional risk analyses and tailoring models to the specific context of Italy.</div><div>PERIL (Platform for the Evaluation of Risk: Insurtech innovation for Loss estimation) is a tool for estimating losses following natural disasters, particularly seismic and flooding events. This platform embeds up-to-date maps and models for the main natural hazards in Italy, vulnerability models for residential and industrial buildings, and it leverages computer vision algorithms to obtain detailed information on the buildings’ characteristics from satellite and street view images. All these modules are combined within PERIL into a CatNat model for calculating risk in terms of losses for seismic and flood events. Lastly, an insurance module was added, which automatically returns possible insurance products, such as insurance policies and capital estimates needed to insure the entire building portfolio. Compared to software currently in use, PERIL makes it possible for insurance companies, public administrations, and risk management bodies to carry out risk analyses remotely and at different scales, allowing them to use all the models and algorithms for risk calculation in a simple, understandable, and automatic way.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"78 ","pages":"Pages 536-543"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147408270","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

Discontinuous analysis of heritage masonry structures subjected to soil settlements accounting for pre-existing seismic damage 考虑预先震害的土体沉降的遗产砌体结构不连续分析

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-02-17 DOI: 10.1016/j.prostr.2025.12.049

Ciro Canditone , Fulvio Parisi , Nicola Cavalagli , Filippo Ubertini

{"title":"Discontinuous analysis of heritage masonry structures subjected to soil settlements accounting for pre-existing seismic damage","authors":"Ciro Canditone , Fulvio Parisi , Nicola Cavalagli , Filippo Ubertini","doi":"10.1016/j.prostr.2025.12.049","DOIUrl":"10.1016/j.prostr.2025.12.049","url":null,"abstract":"<div><div>Assessing the expected structural response of unreinforced masonry (URM) buildings subjected to ground movements is a complex task due to the highly nonlinear mechanical response of URM and the role played by soil-structure interaction. In the case of historic URM structures, further complexity may be caused by pre-existing damage and material degradation, which may significantly affect structural capacity. In this study, an advanced, discontinuous numerical formulation, i.e. the Applied Element Method (AEM), is used to predict the structural response of Consoli Palace — a 14<sup>th</sup> Century iconic heritage structure located in Gubbio, Italy — to soil settlements, accounting for pre-existing damage due to both vertical loads and past earthquakes. Specifically, this study focuses on a sub-system of Consoli Palace, which is called Loggia. A micro-modelling strategy is adopted to simulate the masonry bond pattern via rigid blocks and zero-thickness contact interfaces. The complex vaulted floor system of Loggia is explicitly modelled, incorporating its interaction with the palace’s main body. Pre-existing cracks are implemented in the structural model through specific discontinuities, based on in-situ surveys. Analysis results highlight expected failure modes and damage patterns that might be induced by soil settlements, showcasing how AEM-based micro-modelling can be used to predict the structural behaviour of pre-damaged URM structures.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"78 ","pages":"Pages 379-386"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147408282","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

Preliminary dynamic identification of a masonry cross vault 砌体拱顶的初步动力辨识

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-02-17 DOI: 10.1016/j.prostr.2025.12.086

Luca Rota , Emanuele Gandelli , Andrea Belleri , Luca Facconi , Michelle Gualdi , Giovanni Assini , Michele Bianchessi , Fausto Minelli , Alessia Monaco

{"title":"Preliminary dynamic identification of a masonry cross vault","authors":"Luca Rota , Emanuele Gandelli , Andrea Belleri , Luca Facconi , Michelle Gualdi , Giovanni Assini , Michele Bianchessi , Fausto Minelli , Alessia Monaco","doi":"10.1016/j.prostr.2025.12.086","DOIUrl":"10.1016/j.prostr.2025.12.086","url":null,"abstract":"<div><div>Cross vaults are fundamental structural elements of historical heritage. Their seismic vulnerability has been often proven by past earthquakes, often resulting in significant cultural, social and economic losses. The complex three-dimensional response of these structures, strongly influenced by boundary conditions, geometric configuration, masonry quality as well as mortar joint properties, poses significant challenges for the development of realistic and representative numerical models. As part of the REVHEAL project (Structural Rehabilitation of Vaults in Heritage Asset Learning: collapse identification and design of compatible strengthening systems supported by adaptive 3D models), a full-scale clay bricks masonry cross vault, measuring 3.5x3.5m in plan and 0.9m in height, was subjected to dynamic identification processing ambient vibrations records through Operational Modal Analysis (OMA) techniques. This enabled the identification of the vault’s natural frequencies and mode shapes. These results provide a valuable benchmark for further investigations into the vault’s dynamic behaviour under varying conditions and lay the groundwork for the development of increasingly refined numerical models and compatible intervention strategies.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"78 ","pages":"Pages 671-677"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147408328","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

Enhancing the seismic response of a historic r.c. arch bridge by means of low-mass TMDs 用低质量tmd增强一座历史拱桥的地震反应

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-02-17 DOI: 10.1016/j.prostr.2025.12.092

Samuele Faini , Emanuele Gandelli , Enrico Faccin , Luca Facconi , Fausto Minelli

{"title":"Enhancing the seismic response of a historic r.c. arch bridge by means of low-mass TMDs","authors":"Samuele Faini , Emanuele Gandelli , Enrico Faccin , Luca Facconi , Fausto Minelli","doi":"10.1016/j.prostr.2025.12.092","DOIUrl":"10.1016/j.prostr.2025.12.092","url":null,"abstract":"<div><div>This study explores the effectiveness of low-mass Tuned Mass Dampers (TMDs) for the seismic retrofit of existing reinforced concrete (r.c.) arch bridges. A case study bridge, located in the Valvestino Valley in Northern Italy and designed in the late 1950s by the renowned engineer Riccardo Morandi, is presented. The structure comprises a 90-meter-span box-section arch supporting a 127.7-meter-long deck via spandrel columns. Nonlinear time-history (NLTH) analyses of the existing configuration revealed critical vulnerabilities under Ultimate Limit State (ULS) seismic loading, primarily due to reinforcement corrosion, insufficient shear detailing, and limited ductility. In response, a minimally invasive retrofit strategy was proposed, combining unidirectional bearings and hysteretic dampers in the longitudinal direction, and low-mass TMDs to mitigate transverse motions. A parametric study on the mechanical properties of the TMDs was carried out, revealing that an optimized configuration led to 41.2% reduced piers’ transverse drift together with significantly lower cross-sections’ stresses and strains. The robustness of the solution was confirmed under varying corrosion scenarios and multi-directional seismic inputs. The results confirm the effectiveness of low-mass TMDs in enhancing seismic response without altering the structural identity of existing r.c. arch bridges.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"78 ","pages":"Pages 718-725"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147408806","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