Proceedings of the Institution of Civil Engineers-Bridge Engineering最新文献_第5页

1915 Çanakkale Bridge: challenges and achievements of deck erection over the Dardanelles 1915 Çanakkale桥梁:达达尼尔海峡甲板架设的挑战和成就

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2022-05-20 DOI: 10.1680/jbren.22.00008

Mercedes Ascaso Til, Alberto Sancho Santamaría, Nicholas Luis Lopez

{"title":"1915 Çanakkale Bridge: challenges and achievements of deck erection over the Dardanelles","authors":"Mercedes Ascaso Til, Alberto Sancho Santamaría, Nicholas Luis Lopez","doi":"10.1680/jbren.22.00008","DOIUrl":"https://doi.org/10.1680/jbren.22.00008","url":null,"abstract":"The 1915 Çanakkale Bridge spans the Dardanelles at the western end of the Sea of Marmara. Part of the Kınalı-Balıkesir Motorway in the northwest of Turkey, it is the longest suspension bridge in the world. The 2023 m long main span leaves a 1600 m x 70 m navigation channel. Two 318 m steel towers support the main suspension cables at 38 m separation. The deck comprises a pair of 14.5 m wide, 3.5 m deep aerofoil steel box girders connected at intervals by transverse box girders. Eight 450 t capacity lifting gantries were required for deck erection, two for each side span and four for the main span. There were 153 deck segments to be erected, of which 143 were erected with the gantries. The gantries were self-erected onto the main cables. Environmental conditions and maritime traffic in the strait were key factors in the development and choice of construction methods for the bridge. This paper describes deck erection with the lifting gantries and focuses on the development, design, testing and operation of the self-erection system; an innovative solution which maximises pre-assembly off the critical path, minimises disruption to shipping and allows installation of the gantries without floating cranes.","PeriodicalId":44437,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Bridge Engineering","volume":"19 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89343700","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

Global Fixed Link Bridges: State of the Art 全球固定链路桥:最新进展

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2022-05-10 DOI: 10.1680/jbren.22.00001

Paul D. Mullins, D. Collings

引用次数: 3

Measuring road network resilience through loss of serviceability index for critical road links 通过关键路段的可用性指数损失来测量路网弹性

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2022-05-09 DOI: 10.1680/jbren.21.00098

S. Ientile, Guillame Bianne, C. Chevalier, Franziska Schmidt, Mezgeen A. Rasol, A. Orcesi, L. Adelaide, B. Nedjar

{"title":"Measuring road network resilience through loss of serviceability index for critical road links","authors":"S. Ientile, Guillame Bianne, C. Chevalier, Franziska Schmidt, Mezgeen A. Rasol, A. Orcesi, L. Adelaide, B. Nedjar","doi":"10.1680/jbren.21.00098","DOIUrl":"https://doi.org/10.1680/jbren.21.00098","url":null,"abstract":"In a complex network such as a road infrastructure system, disruptive events have direct consequences (loss of lives, structural damage, economy losses etc.) related to the sub-system level directly affected, as well as indirect consequences on the overall system level such as loss of functionality and related monetary consequences. To quantify the influence of component failures on the network performance, complex network analysis allows representing the relation among its components and the consequences in order to estimate the functionality of the system. The serviceability of a road network is the possibility to use it during a given time period as representing the performance of the system. Thus, the time to restored serviceability after a disruptive event is measuring road transportation resilience. In this paper, network analysis with the help of OSMnx Python package, supplied by road network data from OpenStreetMap, is applied to a Spanish motorway case study. Loss of serviceability index is obtained combining the results of road links failure scenarios based on shortest paths and travel times in order to estimate road network resilience. The proposed methodology allows a suitable evaluation of the influence of road links in the risk assessment and management strategies by road infrastructure owners and managers.","PeriodicalId":44437,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Bridge Engineering","volume":"14 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73092339","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: 3

Design and Construction of Jinhai Bridge 金海大桥设计与施工

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2022-05-03 DOI: 10.1680/jbren.21.00091

LiNa Ping, Deng Yong Feng, Xiaone Wei

引用次数: 0

Tower Road Bascule Bridge, Birkenhead, UK 英国伯肯黑德的塔路巴斯库勒桥

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2022-05-03 DOI: 10.1680/jbren.21.00002

R. Langley

引用次数: 0

Longitudinal-direction design of buckling restrained braces implemented to achieve resilient multi-span bridges 为实现弹性多跨桥梁，进行了纵向屈曲约束支撑设计

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2022-04-20 DOI: 10.1680/jbren.21.00097

Homero Carrion-Cabrera, M. Bruneau

{"title":"Longitudinal-direction design of buckling restrained braces implemented to achieve resilient multi-span bridges","authors":"Homero Carrion-Cabrera, M. Bruneau","doi":"10.1680/jbren.21.00097","DOIUrl":"https://doi.org/10.1680/jbren.21.00097","url":null,"abstract":"Multi-span bridges having bi-directional ductile diaphragm consisting of Buckling Restrained Braces (BRBs) can provide resilient bridges with damage-free columns, at low cost, while minimizing displacements demands to levels that can be easily accommodated. Towards the goal of better understanding the behavior of this type of bridges and its advantages, a parametric analysis was performed with regular multi-span simply-supported bridges considering variations in pier stiffness, BRB target displacement, BRB yield displacement, and numbers of spans. Bridges were analyzed in the longitudinal direction. BRBs were designed using nonlinear response history analysis. The demands of the designed bridges were analyzed to understand the influence of the various parameters considered. It was observed that the proposed system is able to reduce the demands in piers such as to keep them elastic and limit the displacement demands in expansion joints (which makes it easier to prevent unseating in retrofit situations). It was also determined that, according to fatigue damage calculations, it is not necessary to replace BRBs after an earthquake.","PeriodicalId":44437,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Bridge Engineering","volume":"8 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87227843","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 deep learning in structural health management of concrete structures 深度学习在混凝土结构健康管理中的应用

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2022-04-14 DOI: 10.1680/jbren.21.00063

I. D. Uwanuakwa, John Bush Idoko, E. Mbadike, R. Resatoglu, George Uwadiegwu Alaneme

{"title":"Application of deep learning in structural health management of concrete structures","authors":"I. D. Uwanuakwa, John Bush Idoko, E. Mbadike, R. Resatoglu, George Uwadiegwu Alaneme","doi":"10.1680/jbren.21.00063","DOIUrl":"https://doi.org/10.1680/jbren.21.00063","url":null,"abstract":"Structural health management constitutes an essential factor in ensuring the durability of concrete structures. Cracks in concrete, reinforcement corrosion, alkali-silica reaction, and efflorescence attacks are commonly concrete defects that can be identified visually. However, detection and classification of these defects in concrete bridges and other high-rise concrete structures are difficult and expensive process in manual approaches. In this research, a deep learning application is applied to detect and classify concrete defects. Concrete images from the public repository were used to create the explored database. The database was divided into training and validation subsets. The visual geometry group (Vgg19), neural search architecture (nasnetlarge), and residual inception block (vinceptionresnetv2) algorithms were used in analysing the images. The results of the overall performance show that Vgg19 algorithm recorded higher accuracy in the detection and classification of concrete defects as compared to nasnetlarge and inceptionresnetv2 algorithms. The efficiency of the proposed approach was evaluated using a new dataset containing images of concrete defects. The outcome of this research strongly shows that deep learning models could enhance the efficiency of concrete structural health monitoring in a multi-classification scenario.","PeriodicalId":44437,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Bridge Engineering","volume":"35 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82181407","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

A lumped plasticity model for corrosion damaged reinforced concrete columns 钢筋混凝土柱腐蚀损伤的集总塑性模型

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2022-04-07 DOI: 10.1680/jbren.21.00006

H. Roohbakhsh, A. Kalantari, M. Kashani, Akanshu Sharma

{"title":"A lumped plasticity model for corrosion damaged reinforced concrete columns","authors":"H. Roohbakhsh, A. Kalantari, M. Kashani, Akanshu Sharma","doi":"10.1680/jbren.21.00006","DOIUrl":"https://doi.org/10.1680/jbren.21.00006","url":null,"abstract":"Chloride-induced corrosion is one of the most important reasons for the strength degradation of reinforced concrete (RC) bridges. As the piers of RC bridges are important element to sustain lateral loads, corrosion of columns in pier may lead to significant degradation. So it is necessary to have an appropriate evaluation technique to assess the effect of corrosion on the RC columns behaviour. Numerical modelling approaches which are based on the concentrated plastic hinge can predict structural behaviour rapidly and with acceptable accuracy which are highly regarded by engineers. In this study, a numerical approach is conducted to develop an empirical lumped plasticity model for corroded RC column elements. 13440 RC column specimens, including corroded and uncorroded, rectangular, and circular cross sections are analysed under monotonic and cyclic loading. Lumped plasticity model is extracted based on the regression of the cyclic and monotonic analysis results. Finally, calibrated model is verified through experimental and out-of-parametric study models with high accuracy. The new developed plastic hinge model can be used to model and analyse corroded bridge columns rapidly. The result can be appropriate to be employed for modelling in the further assessment such as fragility analysis or rehabilitation.","PeriodicalId":44437,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Bridge Engineering","volume":"15 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78325508","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

Feasibility Study and Preliminary Design of the Bataan-Cavite Interlink Bridge Philippines 菲律宾巴丹-卡维特大桥可行性研究及初步设计

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2022-04-04 DOI: 10.1680/jbren.22.00004

S. Yip, N. Hussain

引用次数: 1

Feasibility Study, Detailed Design and Construction of the 27km Brunei Temburong Bridge 27公里文莱丹布隆大桥的可行性研究、详细设计和施工

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2022-03-21 DOI: 10.1680/jbren.22.00003

S. Yip, N. Hussain

引用次数: 1