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IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures最新文献

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Design and construction of the “Chaumény” footbridge in posttensioned UHPFRC 后张UHPFRC“chaum<s:1>”人行天桥的设计与施工
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0285
Dominique Géhin, E. Brühwiler, N. Bertola, Laurent Widmer
{"title":"Design and construction of the “Chaumény” footbridge in posttensioned UHPFRC","authors":"Dominique Géhin, E. Brühwiler, N. Bertola, Laurent Widmer","doi":"10.2749/prague.2022.0285","DOIUrl":"https://doi.org/10.2749/prague.2022.0285","url":null,"abstract":"In 2020/21, the “Chaumény” footbridge was built in posttensioned UHPFRC over a railway line in the city of Montreux, Switzerland. UHPFRC stands for Ultra High Performance Fiber Reinforced Cementitious composite. UHPFRC shows high resistance both in tension and compression as well as excellent durability properties. The design and construction of the lightweight structure is described. The structure consists of a U-shaped trough girder with a span of 22.5m above the railway clearance, resting on one abutment and one pier, as well as a staircase leading from the pier down to the ground. The footbridge is composed of several precast elements that were assembled by posttensioning to achieve monolithically linked structure.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"2 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":"126125985","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: 4
The new City Bridge of Drammen: A structural insight 德拉门新城市大桥:结构洞察
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.1270
A. Clemente, Sergio Albero, D. Velayos, Adrián Enríquez, Fernando Ibáñez, Birger Opgård, Mario Rando
{"title":"The new City Bridge of Drammen: A structural insight","authors":"A. Clemente, Sergio Albero, D. Velayos, Adrián Enríquez, Fernando Ibáñez, Birger Opgård, Mario Rando","doi":"10.2749/prague.2022.1270","DOIUrl":"https://doi.org/10.2749/prague.2022.1270","url":null,"abstract":"The new City Bridge of Drammen, or Bybrua in Norwegian, is a 258.9m long urban bridge that will cross the railway station and the river. This new structure, that replaces the existing bridge, will connect the main areas of the city, Strømsø to the south and Bragernes to the north. The final design is a collaboration between Degree of Freedom, Norconsult, SAAHA and Knight Architects, outstanding for its symbolism as major landmark of the city.The long structural design process of this bridge has overcome significant challenges such as the poor ground conditions in the riverbed, finding and adequate erection sequence, large ice loads and the coordination between different owners and multiple interdisciplinary teams.Also highlight the fact that this bridge has been completely modelled using BIM technologies for all the disciplines, emphasizing the steel parts and reinforced concrete elements.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"83 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":"128372329","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
Experimental study on the cooperative slip/bearing limit state of high-strength bolted frictional girder connection 高强螺栓摩擦梁连接滑移/承载协同极限状态试验研究
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0189
R. Sakura, Takashi Yamaguchi, Y. Aoki
{"title":"Experimental study on the cooperative slip/bearing limit state of high-strength bolted frictional girder connection","authors":"R. Sakura, Takashi Yamaguchi, Y. Aoki","doi":"10.2749/prague.2022.0189","DOIUrl":"https://doi.org/10.2749/prague.2022.0189","url":null,"abstract":"Bolted girder connections resist applied bending moment through the cooperation of flange and web resistances. To utilize the bending plastic capacity of the girder connection at the ultimate limit state, the bearing capacity of the girder connection should be defined by the cooperative resistance and the ductility of bolt hole deformation. In the present study, pure bending test of plate girders bolted connection has been conducted to evaluate quantitatively the resistance and the ductility of the connection. From obtained results, it was found that the overall slip would not occur until the bolt group in the web other than around the neutral axis reaches their slip strength. In addition, overall slip strength formula with a 5% discrepancy from the experimental results has been newly proposed. As for the deformation capacity, it was found that the flange bolt hole deformation was about 10% of the bolt diameter at the design full plastic moment.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"43 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":"130075313","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
Kinematics-based model for complete behavior of RC dapped-end connections failing along a re-entrant corner crack 基于运动学的钢筋混凝土铰端连接沿可入角裂纹破坏完全行为模型
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.1635
Chathura Rajapakse, H. Degée, B. Mihaylov
{"title":"Kinematics-based model for complete behavior of RC dapped-end connections failing along a re-entrant corner crack","authors":"Chathura Rajapakse, H. Degée, B. Mihaylov","doi":"10.2749/prague.2022.1635","DOIUrl":"https://doi.org/10.2749/prague.2022.1635","url":null,"abstract":"Reinforced concrete dapped-end connections, which are common in existing Gerber-beam bridges, typically feature an inclined corner crack at service loads due to the high stress concentrations in the re-entrant corner. These cracks introduce corrosion issues and increase the stresses in the dapped-end reinforcement, which in the event of further deterioration and increased loading may lead to yielding and failure of the connection. This paper proposes a kinematics-based model for the complete behaviour of such connections which predicts the opening of the cracks based on first principles: compatibility, equilibrium and constitutive relationships. The model stems from an earlier kinematics-based approach for the capacity prediction of dapped-end connections failing along re-entrant corner cracks, and extends it to describe the complete pre-peak, peak and post- peak behaviour.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"67 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":"131041405","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
The New Storstrøm Bridge – Prestressed Box Girder Design 新型Storstrøm桥-预应力箱梁设计
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0112
Luca Cargnino, E. Po
{"title":"The New Storstrøm Bridge – Prestressed Box Girder Design","authors":"Luca Cargnino, E. Po","doi":"10.2749/prague.2022.0112","DOIUrl":"https://doi.org/10.2749/prague.2022.0112","url":null,"abstract":"The New Storstrøm Bridge is a 3.8 km long combined rail and road bridge currently under construction. It will be Denmark’s third longest bridge. It comprises two approach viaducts with 44 spans, typically 80 m long, and a single-tower cable stayed bridge located centrally within the strait crossing, with two 160 m navigational spans. The 25 m wide deck is a prestressed concrete box girder with a unique asymmetric cross section and wide cantilevers. It carries a two-track, high speed railway and a carriageway comprising a two-lane road and a combined pedestrian-cycle. The tight construction schedule imposed to the Design & Build Contract requires the use of full prefabrication of the box girder. A span-by-span construction method based on the erection of typically 73 m-long precast segments is adopted. This paper presents the main challenges of the box girder design due to the construction method, the unusual cross-section and the heavily asymmetric traffic loading.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"42 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":"130568269","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
Proposal of nonlinear buffeting analysis framework for long-span bridges using Volterra series-based non-stationary wind force model 基于Volterra系列的非平稳风力模型的大跨度桥梁非线性抖振分析框架的提出
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0423
Khawaja Ali, Aleena Saleem
{"title":"Proposal of nonlinear buffeting analysis framework for long-span bridges using Volterra series-based non-stationary wind force model","authors":"Khawaja Ali, Aleena Saleem","doi":"10.2749/prague.2022.0423","DOIUrl":"https://doi.org/10.2749/prague.2022.0423","url":null,"abstract":"This paper presents a nonlinear framework to simulate the buffeting response of long-span bridges under Typhoon winds by using a Volterra series-based wind force model. First, the non-stationary wind fields are generated around the bridge using evolutionary power spectrum of the measured wind speeds. Subsequently, the nonlinear buffeting load model is formulated in time-domain by employing the Volterra series. Then, these Volterra kernels are identified from flutter derivatives. At last, the wind forces are applied to 3D fishbone finite element model of a suspension bridge and nonlinear buffeting analysis is performed. The time history analysis results show a good agreement in the simulation of Typhoon-induced buffeting response when compared with the measurement data of bridge displacements. Also, the analysis results are compared with the simulation results obtained from the existing wind load models to show the efficacy of the proposed framework.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"10 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":"130878240","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
New beam element for horizontally curved steel-concrete composite box girder bridges 水平弯曲钢-混凝土组合箱梁桥的新型梁单元
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.1329
Iván Campo-Rumoroso, Ó. Ramos-Gutiérrez, Francisco Cambronero-Barrientos
{"title":"New beam element for horizontally curved steel-concrete composite box girder bridges","authors":"Iván Campo-Rumoroso, Ó. Ramos-Gutiérrez, Francisco Cambronero-Barrientos","doi":"10.2749/prague.2022.1329","DOIUrl":"https://doi.org/10.2749/prague.2022.1329","url":null,"abstract":"Box girder cross-sections are typically used in the design of bridges in curved alignments due to their excellent torsional properties. However, beam elements available for the analysis of those bridges including torsion and distortion effects are scarce and limited to specific geometries. The intend of the new proposed finite element is to provide a tool for the analysis and design of any symmetrical steel-concrete composite box girder bridge in either straight or curved alignment including torsion and distortion effects.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","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":"125499563","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 Material Stiffness on Bond Behaviour for CFRP and BFRP Strips Glued to Concrete Surface 材料刚度对CFRP和BFRP胶条粘结性能的影响
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0860
Szymon Grzesiak, M. Pahn, M. Schultz-Cornelius
{"title":"Influence of Material Stiffness on Bond Behaviour for CFRP and BFRP Strips Glued to Concrete Surface","authors":"Szymon Grzesiak, M. Pahn, M. Schultz-Cornelius","doi":"10.2749/prague.2022.0860","DOIUrl":"https://doi.org/10.2749/prague.2022.0860","url":null,"abstract":"In the last years, the development of fibre reinforced polymers poses new challenges in the creation of new construction and in retrofitting of old buildings and in some cases also bridges. Advanced solutions for refurbishment and strengthening should be an alternative to demolishing old structures and building new ones. One of the established retrofitting methods is the system with carbon fibre reinforced polymer (CFRP) strips. New and innovative materials like basalt fibre reinforced polymer (BFRP) strips can replace well-known CFRP. So far more extensively analysed are the mechanical properties of composites materials like tensile strength, modulus of elasticity and fracture point. Till yet unexplored field of BFRP strips is the bond stress-slip relationship on the concrete surface. This unexplored field is necessary for the calculation of external reinforcement in concrete elements. The aim of this article is to investigate the force transfer between the concrete member and BFRP strips. The intermediate crack element specimens were carried out. The experimental part serves to determine the bond stress–slip relationship of BFRP glued to concrete. In this paper, the effect of material stiffness on the load-bearing behaviour of reinforced concrete structures strengthened with BFRP strips will be considered.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","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":"126836778","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
Weathering Steel Bridges – the New European ECCS Design Guide 耐候钢桥-新欧洲ECCS设计指南
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0128
D. Ungermann, Peter Hatke, D. Rademacher
{"title":"Weathering Steel Bridges – the New European ECCS Design Guide","authors":"D. Ungermann, Peter Hatke, D. Rademacher","doi":"10.2749/prague.2022.0128","DOIUrl":"https://doi.org/10.2749/prague.2022.0128","url":null,"abstract":"Modern bridge structures should not only be efficient in terms of planning and construction, but require also low maintenance efforts. Weathering steel is therefore the ideal material for steel and composite bridges. It does not require any corrosion protection to permanently withstand the effects of the weather. The typical renewal measures for protective paintings can be omitted, which leads to significantly lower life cycle costs and interventions in the traffic flow. When designed and detailed correctly and used in the correct environment, weathering steel performs excellently. To gather the existing experiences and recommendations from different countries and make them available to all designers, the European ECCS design guide for weathering steel bridges has been renewed and supplemented with the latest research results to an efficient tool for a good design of weathering steel bridges. This article will present a selection of extracts from the document, which was recently published.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"42 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":"116698840","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
Toward Crack-based Assessment of Shear-distressed Reinforced Concrete Infrastructure 基于裂缝的钢筋混凝土基础设施受剪破坏评价研究
IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.1337
Jarrod Zaborac, O. Bayrak, T. Hrynyk
{"title":"Toward Crack-based Assessment of Shear-distressed Reinforced Concrete Infrastructure","authors":"Jarrod Zaborac, O. Bayrak, T. Hrynyk","doi":"10.2749/prague.2022.1337","DOIUrl":"https://doi.org/10.2749/prague.2022.1337","url":null,"abstract":"The prioritization of repair and rehabilitation efforts for concrete infrastructure is typically informed by damage observed during routine field inspections. Field observations are qualitatively categorized into condition states based on pre-established measurement limits that do little to account for the member-specific details that affect structural behaviour. As a result, conventional strategies do not typically provide reliable, quantitative predictions about the implications of observed damage. Several mechanics-based approaches for the assessment of shear-distressed reinforced concrete structures have been proposed within the last decade. This paper presents an overview and brief comparison of two assessment procedures. Ultimately, this research aims to develop recommendations for refined numerical procedures that assist infrastructure renewal experts to successfully manage the existing infrastructure inventory.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"10 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":"123742632","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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