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IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs最新文献

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Design of a funicular concrete bridge with knitted formwork 编织模板混凝土索道桥的设计
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0690
Sam Bouten, M. Popescu, F. Ranaudo, T. Mele, P. Block, Pierre Mengeot, Kenneth Wyns
{"title":"Design of a funicular concrete bridge with knitted formwork","authors":"Sam Bouten, M. Popescu, F. Ranaudo, T. Mele, P. Block, Pierre Mengeot, Kenneth Wyns","doi":"10.2749/ghent.2021.0690","DOIUrl":"https://doi.org/10.2749/ghent.2021.0690","url":null,"abstract":"This paper presents the design, engineering and digital fabrication strategies for a circular pedestrian bridge to be built as part of “De Groene Boog” development of the A16 highway north of Rotterdam, The Netherlands. The bridge is designed as a lightweight funicular unreinforced concrete gridshell with openings based on the principle of a three-hinged arch extrapolated to 3D geometry. In its realisation, it demonstrates a model of circular construction using recent material developments (such as recycled concrete) and an efficient flexible formwork system using knitted textiles. The presented design and fabrication process is developed collaboratively by the Block Research Group at ETH Zurich and De Groene Boog. The structure is commissioned by the Dutch Ministry of Infrastructure and Water Management (Rijkswaterstaat).","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126328561","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: 1
City of Ghent – adapting infrastructure to societal needs 根特市——适应社会需求的基础设施
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0682
R. Coene, J. Thielemans
{"title":"City of Ghent – adapting infrastructure to societal needs","authors":"R. Coene, J. Thielemans","doi":"10.2749/ghent.2021.0682","DOIUrl":"https://doi.org/10.2749/ghent.2021.0682","url":null,"abstract":"Ghent has a history of building infrastructure for transport and mobility. In the first chapter, an overview of this history and the accompanying societal needs is presented. Next, this continuing story is set to the present day, where focus lies on sustainable means of transport. The last chapter gives an insight into what we believe to be the challenges for infrastructure in the coming years, and how this is already tangible in present-day projects.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127969305","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 inspection on the safety of fatigue loaded welded cruciform steel joints – comparison of simplified and advanced crack growth models
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1546
D. Leonetti, J. Maljaars, Bert H. H. Snijder
{"title":"Influence of inspection on the safety of fatigue loaded welded cruciform steel joints – comparison of simplified and advanced crack growth models","authors":"D. Leonetti, J. Maljaars, Bert H. H. Snijder","doi":"10.2749/ghent.2021.1546","DOIUrl":"https://doi.org/10.2749/ghent.2021.1546","url":null,"abstract":"Probabilistic fatigue life prediction models of welded steel joints are often used to estimate the level of safety, which is given in terms of the probability of failure or the reliability index as a function of the applied load cycles. Prediction models based on fracture mechanics allow taking into account the effect of inspections on the estimated level of safety. Recent developments in fracture mechanics based fatigue prediction models allow modeling the behavior of short and long fatigue cracks under constant and variable amplitude loading. Short cracks are relevant since their growth characterizes most of the fatigue life, especially under service loading. A recently proposed model by the authors is considered and compared to a more traditional and simplified model as proposed in the standard BS7910, where no distinction is made between short and long cracks. The effect of the model uncertainty, the type of inspection, and the time of the inspection on the estimated level of safety are quantified for welded cruciform steel joints.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121607811","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: 1
Real condition experiment on a new bridge weigh-in-motion solution for the traffic assessment on road bridges 一种新的道路桥梁动态称重评估方法的实态试验
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1242
F. Cartiaux, V. Corvec, J. Semião, B. Jacob, F. Schmidt, A. Brouste, A. Ehrlacher
{"title":"Real condition experiment on a new bridge weigh-in-motion solution for the traffic assessment on road bridges","authors":"F. Cartiaux, V. Corvec, J. Semião, B. Jacob, F. Schmidt, A. Brouste, A. Ehrlacher","doi":"10.2749/ghent.2021.1242","DOIUrl":"https://doi.org/10.2749/ghent.2021.1242","url":null,"abstract":"Weigh-in-Motion is currently the only way to precisely assess and monitor traffic loads on road bridges from real measurements. This assessment helps to detect potential overweight vehicles and to optimize the maintenance operations on the bridge thanks to an accurate knowledge of its real load conditions.An experiment, performed on a precast prestressed concrete beam girders bridge overcrossing a highway in France, is described. The Weigh-in-Motion (WIM) system uses the bridge deck as a large scale, part of the weighing device, and measures strain in critical parts of the structure.The system is able to get significantly accurate estimations of the gross weight of the vehicles on most types of bridges, including long span box girders, large composite decks or the multiple precast prestressed concrete beams considered in the study. However, the axle load estimation is still much less accurate and not presented here.The experiment started in February 2019 and is still going on, also proving the robustness of the solution for an operation over long durations, as a permanent part of the bridge management through its whole lifecycle. Thus, the WIM sensors used are relevant for the Structural Health Monitoring of the bridge deck as well.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115848198","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: 1
Impact of the structural model used on the steel hall fire resistance assessment 结构模型对钢结构大厅耐火评定的影响
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0909
M. Maślak, M. Pazdanowski, M. Suchodoła
{"title":"Impact of the structural model used on the steel hall fire resistance assessment","authors":"M. Maślak, M. Pazdanowski, M. Suchodoła","doi":"10.2749/ghent.2021.0909","DOIUrl":"https://doi.org/10.2749/ghent.2021.0909","url":null,"abstract":"It is presented in detail how the selection of a structural model describing steel hall frame in a more or less complex way may affect fire resistance evaluation for such hall. In the examples compiled in this paper the same typical one-aisle and single-story steel hall is subjected to simulated fire action, each time following the same fire development scenario. A resultant fire resistance is identified individually in each case, using various computational models, on an appropriate static equilibrium path obtained numerically. It is shown that the greater the simplification of the model used, the more overstated the estimated fire resistance is in relation to its real value. Such an overestimation seems to be dangerous to the user, as it gives him an illusory but formally unjustified sense of the guaranteed safety level.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132225976","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: 1
Performance assessment on influence zone of existing structures for metro construction 地铁既有结构影响区性能评价
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1728
B. C. Roy, R. Ekambaram
{"title":"Performance assessment on influence zone of existing structures for metro construction","authors":"B. C. Roy, R. Ekambaram","doi":"10.2749/ghent.2021.1728","DOIUrl":"https://doi.org/10.2749/ghent.2021.1728","url":null,"abstract":"The current mega cities such as Kolkata, Mumbai developed over centuries from even before colonial times and they now consist of old parts and new parts. Though underground construction even in the new parts is not an easy task, in the highly built-up old areas with narrow lanes, going underground while saving what exists above ground is a daunting task. Such a situation arose while taking one of the lines of Delhi Metro through the area of “Old Delhi”. Monitoring the ground features, including old building and monuments during construction became essential. Underground construction, as carried out for East-West metro Kolkata or Mumbai metro line 3, demanded extensive monitoring to assess ground movement and displacement depending upon depth and volume of works underground, soil conditions and foundations of existing buildings and utilities. The paper highlights geology, protecting existing structures, ground movement, construction method, and safety aspects in planning and construction.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132936134","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
Denoising of structural health monitoring data: method and coding 结构健康监测数据去噪:方法与编码
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0504
Peng Ni, Ye Xia, Wanheng Li, Hanyong Liu, Limin Sun
{"title":"Denoising of structural health monitoring data: method and coding","authors":"Peng Ni, Ye Xia, Wanheng Li, Hanyong Liu, Limin Sun","doi":"10.2749/ghent.2021.0504","DOIUrl":"https://doi.org/10.2749/ghent.2021.0504","url":null,"abstract":"Numerous denoising approaches have already been presented to handle the noise in measured data of structural health monitoring systems. However, the performances and features of these existing methods applied in real data-set are not clear enough yet, where the noise is not known in advance. Therefore, based on the measured structural response data from a tied-arch bridge in China, six common data denoising methods are selected for a comparative study. The denoising effects are evaluated based on spectrums. Conclusions on the applicable situations and robustness of involved methods are given. A corresponding program is also developed. This study can provide references for applying the denoising methods in real structural health monitoring system data-set.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131691163","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
Resistance of prestressed bridge girders to diagonal tension cracking 预应力桥梁主梁抗斜拉裂缝的研究
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0819
M. Roosen, M. Hendriks, Yuguang Yang, C. Veen, D. Schaafsma
{"title":"Resistance of prestressed bridge girders to diagonal tension cracking","authors":"M. Roosen, M. Hendriks, Yuguang Yang, C. Veen, D. Schaafsma","doi":"10.2749/ghent.2021.0819","DOIUrl":"https://doi.org/10.2749/ghent.2021.0819","url":null,"abstract":"Diagonal tension cracking is the governing failure mode for bridge girders with a thin web that are highly prestressed and contain little shear reinforcement. When assessing existing bridge girders using the Eurocode 2 [1], it often turns out that it is not possible to demonstrate sufficient resistance to diagonal tension cracking. This paper evaluates the method to determine the maximum principal tensile stresses as used in the Eurocode 2 [1] and investigates how flexural cracks affect the principle tensile stresses in the regions without flexural cracks. This paper also investigates how the tensile strength of the web is affected by the presence of compressive stresses and by the size of the area subjected to high tensile stresses. Based on the results of these investigations, an improved model is proposed to determine the resistance to diagonal tension cracking.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115676949","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
Choosing an appropriate housing methodology for holistic societal needs 为整体社会需求选择合适的住房方法
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0085
J. Wium, Gerdus Van der Watt
{"title":"Choosing an appropriate housing methodology for holistic societal needs","authors":"J. Wium, Gerdus Van der Watt","doi":"10.2749/ghent.2021.0085","DOIUrl":"https://doi.org/10.2749/ghent.2021.0085","url":null,"abstract":"When involved in the provision of infrastructure, engineers need to be cognisant of the needs of society. The paper considers the provision of affordable housing to the acceptance of the beneficiaries, whilst contributing to societal needs through creation of local employment opportunities. The associated lack of skills and a vast number of projects lead to challenges in management of construction quality.Construction quality is therefore considered as a driving factor in the choice of a construction methodology. Lessons from past studies are used to formulate a construction concept for low-cost housing. The lessons from this study can be extrapolated for the development of all civil and structural infrastructure. It demonstrates the need for holistic solutions to find a balance between societal needs and project requirements.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124207214","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
Improving economic efficiency of wind energy using data-based fatigue assessment methods 利用基于数据的疲劳评估方法提高风能的经济效益
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1537
Hendrik Bissing, M. Knobloch, M. Rauch
{"title":"Improving economic efficiency of wind energy using data-based fatigue assessment methods","authors":"Hendrik Bissing, M. Knobloch, M. Rauch","doi":"10.2749/ghent.2021.1537","DOIUrl":"https://doi.org/10.2749/ghent.2021.1537","url":null,"abstract":"Green energy production is one of the most important societal needs of our time. In particular, wind power production is of great importance and its significance is expected to increase even more. Fatigue assessment must be accurate for cost-effective structural designs of dynamically loaded constructions such as wind turbine supporting structures. The Two Stage Model provides an advanced fatigue assessment by using specific cyclic material parameters, as input. These material- related parameters can be determined using the Incremental Step Test. This paper presents an application of the Incremental Step Test. The test results are then applied to the strain-life approach, which is the first step of the Two Stage Model.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124211428","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: 2
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