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

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A prediction method for cable forces of cable-stayed bridges using fuzzy processing and Bayes estimation 基于模糊处理和贝叶斯估计的斜拉桥索力预测方法
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0644
Li Dong, B. Xie, D. Sun, Yizhuo Zhang
{"title":"A prediction method for cable forces of cable-stayed bridges using fuzzy processing and Bayes estimation","authors":"Li Dong, B. Xie, D. Sun, Yizhuo Zhang","doi":"10.2749/ghent.2021.0644","DOIUrl":"https://doi.org/10.2749/ghent.2021.0644","url":null,"abstract":"Cable forces are primary factors influencing the design of a cable-stayed bridge. A fast and practical method for cable force estimation is proposed in this paper. For this purpose, five input parameters representing the main characteristics of a cable-stayed bridge and two output parameters representing the cable forces in two key construction stages are defined. Twenty different representative cable-stayed bridges are selected for further prediction. The cable forces are carefully optimized through finite element analysis. Then, discrete and fuzzy processing is applied in data processing to improve their reliability and practicality. Finally, based on the input parameters of a target bridge, the maximum possible output parameters are calculated by Bayes estimation based on the processed data. The calculation results show that the average prediction error of this method is less than 1% for the twenty bridges themselves, which provide the primary data and less than 3% for an under-construction bridge.","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":"127686190","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 analyses on flexural performance of prefabricated UHPC link slab 预制UHPC连接板抗弯性能数值分析
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0801
B. Briseghella, Weibo Xu, Junqing Xue, Lin Jianhui, C. Nuti
{"title":"Numerical analyses on flexural performance of prefabricated UHPC link slab","authors":"B. Briseghella, Weibo Xu, Junqing Xue, Lin Jianhui, C. Nuti","doi":"10.2749/ghent.2021.0801","DOIUrl":"https://doi.org/10.2749/ghent.2021.0801","url":null,"abstract":"The expansion joints in the multi-span simply supported bridge can be eliminated by using the link slab. The ultra-high performance concrete (UHPC) with high tensile strength and crack resistance is an effective material for the link slab. However, the cast-in-situ UHPC link slab need to be cured with steam curing. Therefore, the construction processes are complicated and the construction quality is difficult to guarantee. In this paper, the prefabricated UHPC link slab which can be assembled on site to simply the construction process, accelerate the construction speed and reduce the labor cost was proposed. Finite element models of the prefabricated and cast-in-situ UHPC link slabs under bending were built by using ABAQUS. The ultimate bearing capacity of the prefabricated link slab was nearly the same of the cast in situ and the crack resistance slightly lower. Finally, the influence of the bolt (used to connect the prefabricated link slab) number and the distance from the bolt to the edge of the link slab on the crack resistance and ultimate bearing capacity of the prefabricated link slab were obtained.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"17 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":"127865685","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
Re-using existing prefabricated prestressed concrete girders 再利用现有预制预应力混凝土梁
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0215
R. Vergoossen, G. V. Eck, Rien Bakker
{"title":"Re-using existing prefabricated prestressed concrete girders","authors":"R. Vergoossen, G. V. Eck, Rien Bakker","doi":"10.2749/ghent.2021.0215","DOIUrl":"https://doi.org/10.2749/ghent.2021.0215","url":null,"abstract":"The future of bridge and overpass design is to be fully circular. To reach that goal many innovations in construction should be made. One of the first steps is to alter the mainly existing linear construction sequence. Therefore, Royal HaskoningDHV started the innovation of re-using prefabricated concrete girders for new overpasses and bridges. The economic and technical feasibility is researched as well as the impact on climate and emissions. To prove our concept, an overpass is deconstructed, and the 40-year-old prefabricated concrete girders are disassembled and put on transport, instead of crushing them to aggregate. In a temporary storage the girders are inspected, repaired, adapted and certified. So, they are fit for their future use in a new structure. Structural assessments, environmental impact and costs calculations are made for a case study. It is concluded that re-using prefabricated girders is technical and economical feasible, with a remaining lifespan of at least 100 year. Up to 44% of CO2-eq. emissions can be saved and even 61% of abiotic depletion (in Sb-eq.). The main obstacle is the unawareness at the different stakeholders that re- using these high-quality girders is possible and these girders can function for the next century.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","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":"127918893","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
Materials in bridge engineering: creating a more sustainable future 桥梁工程中的材料:创造更可持续的未来
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0115
Melvin H. L. Wong
{"title":"Materials in bridge engineering: creating a more sustainable future","authors":"Melvin H. L. Wong","doi":"10.2749/ghent.2021.0115","DOIUrl":"https://doi.org/10.2749/ghent.2021.0115","url":null,"abstract":"Building infrastructures are essential to the future of cities and urban growth. Since material is the gateway to the realization of bridge design concepts, it plays a vital role in Bridge Engineering. The journey towards future encompasses a key leading driver, Sustainability, that will have an impact on our long-standing engineering practice and shape the future to a more efficient and resilient one.In this paper, we present principles that show in which direction is the future of materials in bridge construction heading to. For examples, how to optimize materials performance, how materials can contribute positive influence on sustainability, how to reduce materials consumption and how to extend the life span of bridges? Project references based on each principle demonstrate the know- how to create a more sustainable future.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"32 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":"129184365","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 Enshi funicular 恩施缆车
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1181
Charles Cayatte, Arnaud Lemaire
{"title":"The Enshi funicular","authors":"Charles Cayatte, Arnaud Lemaire","doi":"10.2749/ghent.2021.1181","DOIUrl":"https://doi.org/10.2749/ghent.2021.1181","url":null,"abstract":"Enshi Grand Canyon is one of China's remarkable sites. A one-kilometre-long funicular, carried by steel viaducts on half of the line and a slab track on the other half, will soon be inaugurated to transport visitors with a nearly carbon-free transportation system. These metal structures have unique designs, dictated by the strong constraints of the funicular system and the constraints of accessibility, constructability and transport on this mountainous site. This article presents the main characteristics of these works.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"20 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":"128563273","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
Evaluation, repair & rehabilitation of 2 flyovers using advance assessment methods – a case study 使用预先评估方法对2座立交桥进行评估、修复和修复-一个案例研究
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1572
Alok Bhowmick, R. K. Jaigopal
{"title":"Evaluation, repair & rehabilitation of 2 flyovers using advance assessment methods – a case study","authors":"Alok Bhowmick, R. K. Jaigopal","doi":"10.2749/ghent.2021.1572","DOIUrl":"https://doi.org/10.2749/ghent.2021.1572","url":null,"abstract":"After the collapse of Majherhat Bridge on September 4, 2018 at Kolkata (India), an expert committee was appointed by the state government to ‘examine’ all the old flyovers in the city. A large number of such flyovers identified by this committee, which needed urgent repairs. Two of these flyovers were investigated by the authors as a part of consultancy services provided to the owner client. Both these grade separators were in distress and needed urgent attention. But carrying out condition assessment on these bridges and carrying out any repair posed a big challenge to the Consultants and Clients due to number of factors, including lack of records of the bridges, volume of traffic and critical location of these infrastructures. This paper highlights the broad details of advance assessment techniques adopted for structural condition of these flyovers. The details of proposed repair and rehabilitation techniques adopted are also discussed.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"32 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":"114579604","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
Parametric bridge design – reinforcement design 参数化桥梁设计-配筋设计
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0860
J. Navrátil, P. Ševčík, J. Stampler, G. Strekelj
{"title":"Parametric bridge design – reinforcement design","authors":"J. Navrátil, P. Ševčík, J. Stampler, G. Strekelj","doi":"10.2749/ghent.2021.0860","DOIUrl":"https://doi.org/10.2749/ghent.2021.0860","url":null,"abstract":"Using BIM technology for the design process in the construction industry has become somewhat of a standard approach. For bridge design, various solutions offering geometric design functionality and data management facilities are available on the market. However, integrated solutions for seamlessly supporting the whole planning process are still a scarce commodity. The solution presented integrates architectural modeling, structural analysis, and sophisticated proof checking functionality in one package, where, based on a 4D architectural model, an analysis model is automatically derived, allowing for simulating the erection process in detail and investigating all relevant stress states. The focus of the paper is the reinforcement design of prestressed concrete sections, which is one of the most challenging tasks among the various requirements arising in the design process.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"2006 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":"127643049","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
Fire performance of reinforced concrete slabs: a numerical analysis 钢筋混凝土板的防火性能:数值分析
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1797
Andreia Romero Fanton, L. C. Almeida, L. Trautwein
{"title":"Fire performance of reinforced concrete slabs: a numerical analysis","authors":"Andreia Romero Fanton, L. C. Almeida, L. Trautwein","doi":"10.2749/ghent.2021.1797","DOIUrl":"https://doi.org/10.2749/ghent.2021.1797","url":null,"abstract":"The emergence of tensile membrane action as a key load-carrying mechanism has increased experimental and numerical studies on the fire performance of concrete slabs since 2000, however, the different behaviour due to aggregate type is less studied in slabs numerical analysis. This paper presents a numerical analysis of the thermomechanical behaviour of reinforced concrete slabs exposed to fire, using Finite Element Modelling in ATENA and GiD. Results were validated against experimental data from the literature subjecting slabs to ISO834 and hydrocarbon time- temperature curves. 3 calibration steps were done to combine mechanical and thermal behaviours. A parametric analysis was carried out with calcareous and siliceous aggregates to provide information for safer slab design and consequent fewer accidents related to fire situation. The choice of aggregate type must always be considered in design.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"60 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":"128103026","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 properties of the isolators used in the Green Museum Library (Taiwan) 绿色博物馆图书馆(台湾)用隔振器的动力特性
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.0293
Ivan Marenda, A. Marioni, Roberto Dalpedri, M. Banfi
{"title":"Dynamic properties of the isolators used in the Green Museum Library (Taiwan)","authors":"Ivan Marenda, A. Marioni, Roberto Dalpedri, M. Banfi","doi":"10.2749/ghent.2021.0293","DOIUrl":"https://doi.org/10.2749/ghent.2021.0293","url":null,"abstract":"Over the last decades seismic isolation technology has got a foothold in the structural protection increasing both the damping and the natural period of the superstructure. The curved surface sliding isolator is one of the most common devices used to aim at this goal. It features a special friction material (HIM) able to dissipate a very large amount of energy while, the recentring capacity is given by the pendulum effect. This kind of isolator has been used in the Green Museum Palace (Taiwan). The constancy of its behaviour has been investigated in ShakeLab (Italy), testing 100% of the Friction Pendulum devices in factory production control. In this paper, response data from FPC tests on seven types of Friction Pendulum devices are illustrated. These data show the constancy of the performance of the isolators subjected to design conditions. Furthermore, scale effect in dynamic properties has been studied because of different size isolators have been taken into account.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"11 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":"121928224","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
Sensitivity data driven optimal design for steel frame tall buildings 灵敏度数据驱动的钢框架高层建筑优化设计
IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs Pub Date : 1900-01-01 DOI: 10.2749/ghent.2021.1931
Chenyun Zhang, Yong Huang, Xin Zhao, Jinlun Cai
{"title":"Sensitivity data driven optimal design for steel frame tall buildings","authors":"Chenyun Zhang, Yong Huang, Xin Zhao, Jinlun Cai","doi":"10.2749/ghent.2021.1931","DOIUrl":"https://doi.org/10.2749/ghent.2021.1931","url":null,"abstract":"Structural design generally involves hundreds of design variables and multiple constraints in practical engineering projects, nevertheless, traditional optimization techniques are failed to meet the engineering requirements for solving the optimization problem with high efficiency and accuracy. In this paper, a single driven constraint optimization method based on constraint sensitivity is presented for high-rise steel structure. The design method takes the sensitivity coefficient as the reference index for the optimization design of components to ensure proper compliance and redundancy requirements. An effective incremental analysis method is applied for the calculation of sensitivity coefficients within constraints and design variables. Sensitivity coefficients based material redistribution of components is carried out to make the structure achieve the optimization objective on the premise of satisfying all the design constraints.","PeriodicalId":162435,"journal":{"name":"IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs","volume":"36 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":"122651855","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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