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

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Climatic advantages of the spread of timber constructions in peripheral regions - the case of southern Switzerland 木结构建筑在周边地区传播的气候优势——以瑞士南部为例
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1863
S. Miccoli, A. Frangi
{"title":"Climatic advantages of the spread of timber constructions in peripheral regions - the case of southern Switzerland","authors":"S. Miccoli, A. Frangi","doi":"10.2749/ghent.2021.1863","DOIUrl":"https://doi.org/10.2749/ghent.2021.1863","url":null,"abstract":"The aim of this paper is to investigate the methods available for encouraging the spread of timber constructions in small, peripheral regions such as southern Switzerland. Since 2005, Switzerland has witnessed a major increase in the number of timber constructions, mainly due to the new fire prevention regulations and to the climate and energy goals that the country wants to meet in the near future. This growth has been less significant in southern Switzerland. Data given by the Federal Office for the Environment (FOEN) shows the climatic advantages of the spread of timber constructions. Therefore, the opportunities for increasing the growth of such constructions in southern Switzerland have been researched. In order to identify and take advantage of the unique features of the use of wood in this region, two recent timber buildings, the Nordic Ski Centre by Durisch & Nolli, and the House in Ludiano by Tocchetti & Pessina, are analyzed and presented in this paper. The case of southern Switzerland can be a model for the spread of timber constructions in other similar regions.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"30 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":"125240247","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
Structural robustness as an extended status indicator in bridge maintenance management systems 结构稳健性作为桥梁维修管理系统的扩展状态指标
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1049
J. Akkermann, Marika Suhm
{"title":"Structural robustness as an extended status indicator in bridge maintenance management systems","authors":"J. Akkermann, Marika Suhm","doi":"10.2749/ghent.2021.1049","DOIUrl":"https://doi.org/10.2749/ghent.2021.1049","url":null,"abstract":"In infrastructure assessment in Germany, the main structural inspections classify damage according to intensity, type and influence on stability, traffic safety and durability. The structural capability of bridge structures and parts thereof to react to these damages in a vulnerable or robust manner is a key indicator for the failure probability. The structural robustness of the structure is thus an addi- tional initial information for a qualified condition assessment in maintenance management and for the prioritisation of measures. Originally designed for traffic water structures, the newly developed method for determining the structural robustness and its linkage of damage processes to a \"condi- tion class\" is transferred to bridge structures. This enables a typological clustering of similar types of structures with regard to damage processes as well as the prioritisation of repair measures in the structure portfolio.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"52 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114002872","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
Study on after-slip strength of high-strength bolted frictional joints with a filler plate 带填充板的高强螺栓摩擦接头滑后强度研究
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1005
M. Fujiwara, Takashi Yamaguchi, Senju Kozai
{"title":"Study on after-slip strength of high-strength bolted frictional joints with a filler plate","authors":"M. Fujiwara, Takashi Yamaguchi, Senju Kozai","doi":"10.2749/ghent.2021.1005","DOIUrl":"https://doi.org/10.2749/ghent.2021.1005","url":null,"abstract":"According to the new Japanese Specifications for Highway Bridges, after-slip behavior should be verified in high-strength bolted frictional joints. Previous studies have investigated slip behavior with a filler plate. They have proposed the reduction factor of slip resistance. On the other hand, the ultimate strength of such a joint with a filler plate is not clear, and its design strength considering after-slip behavior is not also specified. In this study, for high-strength bolted frictional joints with various filler plate thicknesses, tensile tests and FEA were carried out. From obtained results, it was revealed that a filler plate did not resist load in bearing, and the number of bolt shear failure surfaces was decreased to one from two by a filler plate. It is also found that bolt shear strength decreased below the designed value as filler plate thickness is increased. The authors also proposed the simple design model for bolt shear strength in the frictional joints with a filler plate.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"89 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114023116","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
Gaining a realistic fatigue load model using sensor-based measurements 使用基于传感器的测量获得真实的疲劳载荷模型
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1258
Melanie Schaller, Eberhard Pelke, C. Gallo
{"title":"Gaining a realistic fatigue load model using sensor-based measurements","authors":"Melanie Schaller, Eberhard Pelke, C. Gallo","doi":"10.2749/ghent.2021.1258","DOIUrl":"https://doi.org/10.2749/ghent.2021.1258","url":null,"abstract":"In this article, fatigue calculations based on the modified fatigue load model 4 (ELM 4) of the recalculation guideline of BASt are compared with an object-specific calculation of sensor-based measurements, using the Lichfield Bridge in Limburg an der Lahn as an example. A central part of this contribution consists of the presentation of the data evaluation, with the help of which a weight distribution and the traffic composition of the five standard trucks of the modified ELM 4 could be evaluated. Another focus lies on the evaluation of the economic consequences of these modified damage calculations.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"1 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":"122490910","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
Dynamic behavior of aluminum deck-on-steel girder bridges under vehicular traffic loads considering the effect of road roughness 考虑道路不平整度影响的汽车荷载作用下铝桥面钢梁桥动力特性
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1623
Achraf Ben Afia, C. Annan, P. Dey
{"title":"Dynamic behavior of aluminum deck-on-steel girder bridges under vehicular traffic loads considering the effect of road roughness","authors":"Achraf Ben Afia, C. Annan, P. Dey","doi":"10.2749/ghent.2021.1623","DOIUrl":"https://doi.org/10.2749/ghent.2021.1623","url":null,"abstract":"Aluminium as a structural material is known for its lightweight, which facilitates easy transportation and installation, and reduces foundation requirements. However, this lightweight characteristic makes it sensitive to excitations from vehicular traffic leading to dominating dynamic design over the static one. The dynamic design of highway bridges by the Canadian Highway Bridge Design Code (CSA S6-19) is based on the concept of equivalent dynamic amplification factors (DAF), which were derived largely based on the observations from bridges constructed with traditional materials such as concrete, wood and steel. It is prudent to evaluate whether these factors are applicable to lightweight bridges made with extruded aluminium decks. In addition, since road roughness plays an important role in the dynamic behaviour of a bridge, it is important to consider the influence of roughness on the bridge vibration response. The objective of this research is to investigate the dynamic behaviour of aluminium deck-on-steel girder bridges under vehicular loads considering the effect of road roughness, and consequently evaluate the applicability of the current design DAFs for such structures. For this purpose, numerical models have been developed in Abaqus for a range of selected bridge configurations and loading parameters and subsequently the key observations and conclusions from the numerical analysis have been presented in this paper.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"58 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":"131150699","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
Butt welded connections of high strength steel 高强度钢对焊连接
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1118
Mareike von Arnim, Jennifer Spiegler, U. Kuhlmann
{"title":"Butt welded connections of high strength steel","authors":"Mareike von Arnim, Jennifer Spiegler, U. Kuhlmann","doi":"10.2749/ghent.2021.1118","DOIUrl":"https://doi.org/10.2749/ghent.2021.1118","url":null,"abstract":"High-performance materials such as high strength steels allow for resource-efficient innovative structures. Therefore, economical and user-friendly design concepts for welded connections of high strength steels are required. Current design rules had been developed mainly for mild steels, e.g. requiring an overmatching of the filler metal. It is not considered, that a soft area which may form in the heat-affected zone of welded high strength steel connections may lead to an overestimation of the load-carrying capacity. Besides, mixed connections as well as under- and overmatching filler metals are not included in the current design codes. Based on a large number of experimental and numerical investigations, a design concept has been developed which takes the characteristics of butt welded high strength steel connections into account. Additionally, experimental and numerical investigations are planned to transfer the new concept of design also to mixed connections.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"219 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":"131541414","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
Response surface method strategies coupled with NLFEA for structural reliability analysis of prestressed bridges 响应面法与NLFEA相结合的预应力桥梁结构可靠度分析策略
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1813
S. S. Nova, J. Gonzalez-Libreros, G. Sas, R. S. Díaz, M. C. A. T. D. Silva, L. Trautwein
{"title":"Response surface method strategies coupled with NLFEA for structural reliability analysis of prestressed bridges","authors":"S. S. Nova, J. Gonzalez-Libreros, G. Sas, R. S. Díaz, M. C. A. T. D. Silva, L. Trautwein","doi":"10.2749/ghent.2021.1813","DOIUrl":"https://doi.org/10.2749/ghent.2021.1813","url":null,"abstract":"The Response Surface Method (RSM) has become an essential tool to solve structural reliability problems due to its accuracy, efficacy, and facility for coupling with Nonlinear Finite Element Analysis (NLFEA). In this paper, some strategies to improve the RSM efficacy without compromising its accuracy are tested. Initially, each strategy is implemented to assess the safety level of a highly nonlinear explicit limit state function. The strategy with the best results is then identified and used to carry out a reliability analysis of a prestressed concrete bridge, considering the nonlinear material behavior through NLFEA simulation. The calculated value of 𝛽 is compared with the target value established in Eurocode for ULS. The results showed how RSM can be a practical methodology and how the improvements presented can reduce the computational cost of a traditional RSM giving a good alternative to simulation methods such as Monte Carlo.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"13 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132571946","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 numerical approach for the assessment of crosswind effects on barrier-protected trains running on bridges 桥上护栏列车侧风影响的数值计算方法
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0233
Giuseppe Porpiglia, P. Schito, T. Argentini, A. Zasso
{"title":"A numerical approach for the assessment of crosswind effects on barrier-protected trains running on bridges","authors":"Giuseppe Porpiglia, P. Schito, T. Argentini, A. Zasso","doi":"10.2749/ghent.2021.0233","DOIUrl":"https://doi.org/10.2749/ghent.2021.0233","url":null,"abstract":"This paper introduces a new methodology to assess the influence of a windscreen on the crosswind performance of trains running on a bridge. Considering the difficulties encountered in both carrying out wind tunnel tests that consider the vehicle speed or complete CFD analyses, a simplified CFD approach is here discussed. Instead of simulating simultaneously the windscreen plus the moving train, the numerical problem is split into two parts: firstly, a simulation of the windshield alone is used to extract the perturbed velocity profile at the railway location; secondly, this profile used as an inlet condition for the wind velocity acting on an isolated train. The method is validated against a complete train plus windshield simulation in terms of pressure distribution and aerodynamic force coefficients on the train, and flow streamlines. This approach opens to the possibility of evaluating the aerodynamic performance of a vehicle on bridges considering bridge and vehicle as separated. Wind velocity profiles measured on the bridge during a wind tunnel campaign could be used as the initial condition for numerical simulations on vehicles.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"82 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":"115541558","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
Numerical evaluation of horizontal cracking potential in continuously reinforced concrete pavement under varying saw-cut depths 不同锯切深度下连续钢筋混凝土路面水平裂缝潜力的数值评价
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0776
M. Kashif, A. Outtier, Muhammad Wisal Khattak, P. D. Winne, H. Backer
{"title":"Numerical evaluation of horizontal cracking potential in continuously reinforced concrete pavement under varying saw-cut depths","authors":"M. Kashif, A. Outtier, Muhammad Wisal Khattak, P. D. Winne, H. Backer","doi":"10.2749/ghent.2021.0776","DOIUrl":"https://doi.org/10.2749/ghent.2021.0776","url":null,"abstract":"The objective of this study is to evaluate the horizontal cracking potential in terms of vertical tensile stress development near longitudinal steel bar in the continuously reinforced concrete pavement (CRCP). For this purpose, a three-dimensional (3D) finite element (FE) model of the CRCP segment with partial surface saw-cuts has been developed using the FE tool Diana 10.3. The early-age behaviour of CRCP subjected to external varying temperature field condition has been evaluated by using the staggered structural-flow analysis. The characteristics of the early-age crack pattern in terms of crack initiation and crack propagation obtained from the FE model are compared with the field observations of cracking developments on the CRCP sections in Belgium. The FE results indicate that the vertical tensile stress in concrete near the longitudinal steel bar develops at the transverse crack interface. It translates that the horizontal crack perpendicular to the vertical concrete stress can initiate from the transverse crack depending on the magnitude of stress against developing concrete tensile strength. It has also been observed that the deeper the saw-cut, the larger the magnitude of vertical tensile stress and the higher incident of horizontal cracking. Moreover, the developed 3D FE model can be further used to optimize the early-age behaviour of CRCP in advance of costly field trials.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"57 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":"114475121","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
FE analysis of continuous shear connector 连续剪切连接件有限元分析
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0615
P. Vaňová, V. Kvočák
{"title":"FE analysis of continuous shear connector","authors":"P. Vaňová, V. Kvočák","doi":"10.2749/ghent.2021.0615","DOIUrl":"https://doi.org/10.2749/ghent.2021.0615","url":null,"abstract":"Composite bridges with encased steel beams, or nowadays, rather encased steel continuous shear connectors are a welcome option for short span railway or road bridges. With lower construction height and easy construction of prefabricated composite beams it brings a new, complex, solution for replacement of older, overserved bridges, as well as for new tasks. At Technical University of Košice, Faculty of Civil Engineering a new designed of the steel perforated strip was developed. At Laboratory of Excellent Research several experiments for resistance finding were carried together with material tests. In this article the numerical analysis of push-out tests performed is closely described and the shear resistance of finite element model developed in Abaqus/CAE is compared to experimental results.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"26 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":"117094604","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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