IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures最新文献_第6页

Numerical model updating of an aging steel bridge based on a multidisciplinary experimental campaign 基于多学科试验的老化钢桥数值模型修正

IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.1300

B. Barros, B. Conde, Ó. Bouzas, M. Cabaleiro, B. Riveiro

{"title":"Numerical model updating of an aging steel bridge based on a multidisciplinary experimental campaign","authors":"B. Barros, B. Conde, Ó. Bouzas, M. Cabaleiro, B. Riveiro","doi":"10.2749/prague.2022.1300","DOIUrl":"https://doi.org/10.2749/prague.2022.1300","url":null,"abstract":"A large part of the European bridge stock is reaching the end of its design service life. Currently, several applications for numerical models have been emerged, such as damage detection or structural safety assessment, among others. However, accurate numerical modeling is still a challenge. Model input uncertainties can cause large differences between numerical model predictions and actual measured responses from the structure. This fact makes model updating or calibration techniques essential for the aim of reducing such discrepancies. In this study, a model updating methodology is developed and implemented in an aging steel bridge located in a corrosive environment. An extensive and multidisciplinary experimental campaign was first carried out for collecting the necessary geometrical and material properties as well as dynamic data that will be used as a reference for the calibration process. A good agreement was found between the updated numerical model and the experimental modal data obtaining an average frequency error of 2.09% and average MAC (Modal Assurance Criterion) of 0.97.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","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":"126210748","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

Development of simplified Bridge-Weigh-In-Motion based on displacement evaluation using an accelerometer 基于加速度计位移评估的桥梁运动重量简化研究

IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0407

Nanami Ashizawa, Kouichi Takeya, E. Sasaki, J. Yoshida

引用次数: 0

D4R7. New Danube Crossing at Bratislava

IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.1527

Carlos Bajo Pavía, Luis Martín-Tereso López, José Vicente Candel Hernandis, W. Włodzimirski, Božena Morávková, Ivan Vöröš, Adrián Chalupec, Juraj Kopčák, J. Simón-Talero, Ángel Carriazo, R. Merino, J. Stráský, P. Novotný

引用次数: 0

Challenges of a Bridge Design in Tight Urban Areas 密集城市地区桥梁设计的挑战

IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.1087

Elif Ünalan Gurbanli

引用次数: 0

Geometry as a common ground for BMS and BIM 几何是 BMS 和 BIM 的共同基础

IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0720

D. Isailović, R. Hajdin

{"title":"Geometry as a common ground for BMS and BIM","authors":"D. Isailović, R. Hajdin","doi":"10.2749/prague.2022.0720","DOIUrl":"https://doi.org/10.2749/prague.2022.0720","url":null,"abstract":"Bridge Management Systems (BMSs) are sophisticated software tools, widely used for managing bridges. Comprising a centralized database of all relevant information for the entire bridge stock and analytics to forecast bridges’ condition and maintenance cost, BMSs are irreplaceable tools, used by all the National Road Authorities (NRAs) around the world. These powerful tools, although different from one another, all lack adequate visualization of bridges. Recently, numerous researcher proposed using the Building Information Models (BIMs) to address this issue.This paper presents the geometric approach of introducing BIM to BMS. Rather than trying to thoroughly connect these two robust systems on the object definition level, this approach focuses on geometry. The paper firstly shows how all the inventory information from BMS can be associated with corresponding BIM objects. Afterward, the ways to include the condition assessment data into BIM are proposed. Once the basics of the geometric approach are explained, the example of connecting BIM with BMS is presented. The example is based on KUBA, the Swiss BMS.Finally, the feasibility, as well as the challenges of the presented approach are analyzed. The analysis focused on two important questions. Firstly, it considered if BIM is capable of making workflow changes in the Infrastructure Asset Management (IAM) the same way it did it in the construction industry. Secondly, it evaluated the BIM capability to describe all the condition assessment information relevant to IAM.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"103 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":"131255293","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

Recent and future trends of onshore wind turbine foundations 陆上风力发电机基础的近期和未来趋势

IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0210

Jesús Armesto Barros, A. Mathern

{"title":"Recent and future trends of onshore wind turbine foundations","authors":"Jesús Armesto Barros, A. Mathern","doi":"10.2749/prague.2022.0210","DOIUrl":"https://doi.org/10.2749/prague.2022.0210","url":null,"abstract":"The decarbonization of the economy and the growing need for electricity are two trends that call for greener energy sources. Wind is a growing renewable energy source, which is expected to become the first source of power in the European Union in the next decade. In particular, onshore wind energy is expected to double by then. Fundamental structural components of wind turbines are their foundations, which are large structures associated with important material consumption and many construction challenges. The dimensions of these foundations are continuously increasing as turbines with taller towers and larger rotor diameters are being built. Designing cost- and material-efficient foundations is crucial to reduce the economic and environmental impact of wind energy. An important factor to successfully address these evolving requirements in the planning and design process is to build on the experience from previous projects. The aim of this work is to investigate the evolution of onshore wind turbines and its consequences on the design and climate impact of gravity foundations by analysing data from Swedish wind farms set in operation between 2013 and 2022. The evolution of turbine size, and foundation dimensions, reinforcement layout, material types and quantities, and embodied carbon are analysed in this paper.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","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":"115833032","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

The design of the anchoring of the steel double track railway integral bridge in Mechelen contrasting the historical Vierendeel bridges 米赫伦钢质双轨铁路整体桥的锚固设计与历史上的空心桥形成对比

IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0484

B. D. Pauw

{"title":"The design of the anchoring of the steel double track railway integral bridge in Mechelen contrasting the historical Vierendeel bridges","authors":"B. D. Pauw","doi":"10.2749/prague.2022.0484","DOIUrl":"https://doi.org/10.2749/prague.2022.0484","url":null,"abstract":"In extending the existing railway infrastructure from Brussels to Antwerp, a new double track railway infrastructure has been built as a by-pass along the station in the city of Mechelen. In combination with these works, also a road infrastructure, further called the tangent road, was also constructed in which both infrastructures were bundled to the maximum. In crossing a local canal a new railway bridge is designed parallel to historical steel Vierendeel bridges and on top of the new tangent road tunnel going underneath the canal. The paper describes the final design and realization of the new railway bridge contrasting in all its aspects to the Vierendeel bridges with riveted bolt connections. The bridge consists of two lateral main girders having variable rectangular sections and is designed as an integral clamped structure without any bearings. The superstructure is fully welded and the main box girders have a maximum height of 3.65 m near the abutments. The lower flange remains almost horizontal and is slightly twisted about a horizontal axis thus becoming wider near the centre. The upper flange decreases significantly and becomes smaller near mid span where the box girder has a height of 1.65 m. This creates a waving pattern of the structure both in a horizontal plane as in the front view showing an inversed curvature near to the arch springs of the Vierendeel bridges. The concept differs from a more classical integral bridge by the extreme large stiffness of the abutments on top of the tunnel consisting of diaphragm walls. The steel structure is hereby almost perfectly clamped by post tensioning anchors.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"56 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":"125480302","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 Condition Assessment Based on Image Data and Digital Twins 基于图像数据和数字孪生的桥梁状态评估

IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0735

J. Taraben, M. Helmrich, G. Morgenthal

引用次数: 1

Gusset plate between bridge hanger and arch formed by a H rolled section – Design considerations based on numerical analysis 桥吊架与拱之间的扣板由H型钢轧制而成。基于数值分析的设计考虑

IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.0181

R. Zanon, Miguel Candeias

{"title":"Gusset plate between bridge hanger and arch formed by a H rolled section – Design considerations based on numerical analysis","authors":"R. Zanon, Miguel Candeias","doi":"10.2749/prague.2022.0181","DOIUrl":"https://doi.org/10.2749/prague.2022.0181","url":null,"abstract":"The paper investigates the detailing of the gusset plate serving as connection of the hanger to an arch member in form of a H-shaped rolled section in the frame of a tied-arch bridge. The driver of the investigation is the fatigue resistance which is usually critical for this element. Since the rolled sections used for this application belong to the same geometrical family it is possible to define a common geometric basis for this study.At first a variety of geometric shapes have been considered and analysed by means of FEM numerical simulations. This preliminary analysis has delivered a rating in term of sensitivity to fatigue resistance, with best grades obtained for the shapes with lower the stress peaks. Beside the rating based on structural performance, a second rating has been proposed based on easy of execution. The combined results from these two ratings have permitted to identify the most suitable gusset shape. This shape has been afterwards investigated more in detail in term of hot-spot stress peaks, in particular considering the influence of the different hanger – arch inclination. This study leads to a proposal for the most appropriate geometric detailing for the gusset plate in the case of the arch as H- rolled sections, providing the lowest possible stress peaks and at the same time an easier fabrication process.","PeriodicalId":168532,"journal":{"name":"IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures","volume":"85 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":"121398073","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

Tests of Glass Banister Panels with Embedded Laminated Connections 嵌入层压连接的玻璃栏杆板的试验

IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures Pub Date : 1900-01-01 DOI: 10.2749/prague.2022.1482

Michaela Zdražilová, Z. Sokol, M. Eliášová

引用次数: 0