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

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Accidental impact by ships in the updated EN 1991-1-7 更新后的EN 1991-1-7中的船舶意外撞击
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1348
C. Kunz
{"title":"Accidental impact by ships in the updated EN 1991-1-7","authors":"C. Kunz","doi":"10.2749/ghent.2021.1348","DOIUrl":"https://doi.org/10.2749/ghent.2021.1348","url":null,"abstract":"Ship collision is still one of the risk-prone expositions for bridges crossing navigable inland and mar- itime waterways. Within the preparation of the 2nd generation of the Eurocodes a 3rd (final) draft of an updated EN 1991-1-7 is edited [2]. Rules and background information for the Eurocode impact rules concerning inland and maritime waterway traffic are given. The rules and recommendations cover aspects like impact dynamics, load-indentation-functions, collision angles, collision probabili- ties and reliability criteria. For seagoing vessels new impact mechanics have been included. Infor- mation from some National Annexes and open questions are mentioned. Examples with determined ship impact forces are presented.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"532 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":"123088788","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
Application of mobile devices for the rapid assessment of masonry arch bridges – worked example and benchmarking 移动设备在砖石拱桥快速评估中的应用——实例与标杆
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0793
M. Haslbeck, Thomas Hertle, T. Braml
{"title":"Application of mobile devices for the rapid assessment of masonry arch bridges – worked example and benchmarking","authors":"M. Haslbeck, Thomas Hertle, T. Braml","doi":"10.2749/ghent.2021.0793","DOIUrl":"https://doi.org/10.2749/ghent.2021.0793","url":null,"abstract":"Reassessment of masonry arches necessitates feasible methods for analysing the static behaviour of the persisting structure and an applicable way how to calculate the remaining load bearing capacity. Especially when a quick assessment of a structure is necessary, easily measurable characteristics, such as geometric properties have to be used. In this paper, the existing Application BRASSCO-NG is extended for masonry arch bridges by implementing the methodology described in paper [16] of this conference proceedings. Embedded into a worked example, the application of the tool is explained in detail from the first reconnaissance to the interpretation of the results. A subsequent benchmark evaluation to the static calculation and the empirical MEXE methodology compares the outcome to the techniques currently used in military and civil engineering. Even though the tool is mainly aimed for military application, the basic structure can easily be adopted for civil use, e.g. the rapid assessment of a structure after a natural disaster.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"22 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":"124912393","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
Timber-granite-composite structures for pedestrian and cycle path bridges 用于行人和自行车道桥梁的木材-花岗岩复合结构
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1135
Florian Walgenbach-Albat, Tim Göckel, A. Laubach, Georg Kusser, F. Miebach, Jürgen Schaffitzel
{"title":"Timber-granite-composite structures for pedestrian and cycle path bridges","authors":"Florian Walgenbach-Albat, Tim Göckel, A. Laubach, Georg Kusser, F. Miebach, Jürgen Schaffitzel","doi":"10.2749/ghent.2021.1135","DOIUrl":"https://doi.org/10.2749/ghent.2021.1135","url":null,"abstract":"This paper presents intermediate results of a cooperative research team on feasible shear- connections for timber-granite-composite structures for pedestrian and cycle path bridges. At the beginning, feasible shear-connector concepts are presented, which are analysed in a first shear test series with regard to load-bearing capacity, stiffness, fracture behaviour, and also manufacturability and economic efficiency. Based on the shear tests, a connector is finally selected which can be used in timber-granite-composite structures and will be further investigated in the progressing research project.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"258 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":"122746512","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
Bridge weigh-in-motion using bridge influence surface and computer vision: an experimental study 基于桥梁影响面和计算机视觉的桥梁动态称重实验研究
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0435
Xudong Jian, Jiwei Zhong, Yafei Wang, Ye Xia, Limin Sun
{"title":"Bridge weigh-in-motion using bridge influence surface and computer vision: an experimental study","authors":"Xudong Jian, Jiwei Zhong, Yafei Wang, Ye Xia, Limin Sun","doi":"10.2749/ghent.2021.0435","DOIUrl":"https://doi.org/10.2749/ghent.2021.0435","url":null,"abstract":"Complicated traffic scenarios, including random lane change and multiple presences of vehicles on bridges are the main obstacles preventing bridge weigh-in-motion (BWIM) technique from reliable and massive application. To tackle the complicated traffic problems of BWIM, this paper develops a novel BWIM method by integrating the bridge influence surface theory and deep-learning based computer vision technique. For illustration and verification, the proposed method is applied to identify gross weights of vehicles in scale experiments, where various complicated traffic scenarios are simulated. Identification results confirm the favourable robustness, accuracy, and cost- effectiveness of the method.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"22 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":"125182803","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
Elaboration of a rapid assessment method for masonry arches 砌体拱快速评估方法的探讨
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0783
Matthias Haslbeck, Hendrik Vallée, T. Braml
{"title":"Elaboration of a rapid assessment method for masonry arches","authors":"Matthias Haslbeck, Hendrik Vallée, T. Braml","doi":"10.2749/ghent.2021.0783","DOIUrl":"https://doi.org/10.2749/ghent.2021.0783","url":null,"abstract":"Reassessment of masonry arches necessitates feasible methods for analysing the static behaviour of the persisting structure. In this paper, a method is presented that gives an approximation of the load bearing capacity using only very few geometrical dimensions. Unlike other commercial software kits, the methodology is not tailored to do an exact structural analysis using as-built drawings and documentations, but it is made for a rapid classification of civil engineering structures in the field. Characteristics of the proposed methodology are the analysis using thrust lines and the minimized time consumption for the exploration of the structural properties, which makes the approach the first choice for rapid classification tasks within the German Armed Forces. The application that will be delivered as an App for tablets and other mobile devices shall be used for rapid classification of masonry arches with regard to the crossing of military vehicles, but can easily be adapted for civil applications. For a worked example on the presented methodology, see [25].","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"133 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":"125408043","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
Effect of loading rate, surface flaw length and orientation on strength of laser-modified architectural glass 加载速率、表面缺陷长度和取向对激光改性建筑玻璃强度的影响
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1581
S. Nategh, Evelien Symoens, J. Missinne, J. Belis
{"title":"Effect of loading rate, surface flaw length and orientation on strength of laser-modified architectural glass","authors":"S. Nategh, Evelien Symoens, J. Missinne, J. Belis","doi":"10.2749/ghent.2021.1581","DOIUrl":"https://doi.org/10.2749/ghent.2021.1581","url":null,"abstract":"The strength of architectural glass (soda-lime silica) is highly dependent on surface flaws generated during production, handling and service life. Fracture mechanical investigation of glass, however, is challenging due to e.g. the randomness of flaw size, flaw orientation and quality. Generation of radial and median cracks is inevitable while using a mechanical indenter with direct contact. These undesirable effects, along with uncertainty about the groove’s depth and geometry, degrade the accuracy of results and underline the need for a more reliable tool. Consequently, this contribution focuses instead on the application of ultra-short laser as a non-contact tool, which recently has proved to be a promising solution because of its precision, high speed, and repeatability. Here, artificial grooves with a well-controlled depth are realized on the surface of soda-lime silica glass to investigate the effects of loading rate, flaw size and flaw orientation on the glass strength. Four- point bending tests are performed to assess the failure loads. The method manages to capture the results with a very low standard deviation of the failure stress (approximately 1 MPa), eliminating the need for using large series of specimens.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"37 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":"125753818","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
Variations in seismic retrofit design of cable-stayed bridges of different sizes 不同尺寸斜拉桥抗震加固设计的差异
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1422
T. Kaneda, K. Yamaguchi
{"title":"Variations in seismic retrofit design of cable-stayed bridges of different sizes","authors":"T. Kaneda, K. Yamaguchi","doi":"10.2749/ghent.2021.1422","DOIUrl":"https://doi.org/10.2749/ghent.2021.1422","url":null,"abstract":"There are three cable-stayed bridges in Nishi-Seto Expressway, the westernmost route of Honshu- Shikoku Expressway; Shin-Onomichi Bridge (maximum span of 215 m), Ikuchi Bridge (center span of 490 m), and Tatara Bridge (center span of 890 m). The results of seismic analyses of the bridges revealed the considerable sway-mode vibrations in longitudinal direction, and seismic devices such as viscous dampers and stoppers were found to be necessary to mitigate the above vibrations. In this paper, the vibration characteristics of the cable-stayed bridges of different sizes and the difference in the seismic retrofit design for the bridges are presented.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"27 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":"124541143","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
Advancements in shear strengthening of prestressed concrete I-girders using fiber reinforced polymers 纤维增强聚合物对预应力混凝土工字梁抗剪加固的研究进展
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1746
M. Yaqub, S. Matthys, C. Czaderski
{"title":"Advancements in shear strengthening of prestressed concrete I-girders using fiber reinforced polymers","authors":"M. Yaqub, S. Matthys, C. Czaderski","doi":"10.2749/ghent.2021.1746","DOIUrl":"https://doi.org/10.2749/ghent.2021.1746","url":null,"abstract":"A number of attempts were made by different researchers in the last couple of decades to strengthen prestressed concrete (PC) I-girders in shear using externally bonded FRP (fibre reinforced polymer) reinforcement. The unanimous observation reported in the literature is the early debonding of FRP shear reinforcement around the internal angles of the I-section. Because of this undesirable phenomenon, the strength of the FRP is utilized inefficiently. This paper gives an overview of the techniques utilized in the past and their relative performance in order to develop a rational solution to the debonding problem, particularly for I-sections. The anchoring techniques used in the past includes different types of FRP anchors as well as mechanical anchors to protect FRP shear reinforcement from debonding on the I-section. It can be concluded that the definite solution to the debonding problem on I-sections has not been obtained yet. This is because of the complex failure modes of FRP shear reinforcement and PC I-girders.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"7 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":"123772984","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
Comparison on outlier detection methods using measured data from a long span tied-arch bridge 某大跨度系拱桥实测数据异常点检测方法比较
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0497
Peng Ni, Haili Jiang, Wurong Fu, Ye Xia, Limin Sun
{"title":"Comparison on outlier detection methods using measured data from a long span tied-arch bridge","authors":"Peng Ni, Haili Jiang, Wurong Fu, Ye Xia, Limin Sun","doi":"10.2749/ghent.2021.0497","DOIUrl":"https://doi.org/10.2749/ghent.2021.0497","url":null,"abstract":"As the demand for the detections of outliers in the structural health monitoring data-set increases, numerous approaches are presented for it. However, the characteristics of the existing methods dealing with different kinds of measured data are not yet clear enough for practical use. Therefore, this paper conducts a comparative study of several popular rule-based methods based on monitoring data of an arch-tied bridge in China. For measured data, outliers are not known in advance. In this way, this study evaluates and compares the detection performances rely on two indicators: the quantity of the detected outliers and the extreme value of the outliers deviating from the mean of the data. Conclusions on the features and applicable situations of involved methods are given. Additionally, combining the results of different methods proves to be beneficial. Finally, a software incorporating the research results is developed for outlier detection.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"58 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120853835","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
Exploring circularity: Europengineers on piano 探索圆形:钢琴上的欧洲工程师
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0141
Audrey Zonco, B. Göttgens, Kieran O'Riordan, Che Liu, Dominique Rat
{"title":"Exploring circularity: Europengineers on piano","authors":"Audrey Zonco, B. Göttgens, Kieran O'Riordan, Che Liu, Dominique Rat","doi":"10.2749/ghent.2021.0141","DOIUrl":"https://doi.org/10.2749/ghent.2021.0141","url":null,"abstract":"Europengineers organized a design sprint on the theme of reuse, which took place at Setec’s headquarters from the 20th to 22nd February 2020. This was based on a study case: how could the 80 steel frames in the Thales factory be saved from the foundry and reused in another project? What barriers and difficulties would be encountered in such a project?The teams of twenty engineers shed light on the design stages (find the client, use and shape), the technical challenges (Structural diagnosis and reliability, dismantling, storage) and marketing issues (marketplace, insurability).","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":"121092530","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
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