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Railway bridge “Under Vyšehrad” in Prague, preparation of reconstruction 布拉格 "维谢赫拉德地下 "铁路桥，重建准备工作
ce/papers Pub Date : 2024-09-11 DOI: 10.1002/cepa.3057
Jiří Krouský
{"title":"Railway bridge “Under Vyšehrad” in Prague, preparation of reconstruction","authors":"Jiří Krouský","doi":"10.1002/cepa.3057","DOIUrl":"https://doi.org/10.1002/cepa.3057","url":null,"abstract":"<p>The railway bridge in Prague under Vyšehrad is a steel riveted structure with a lower deck from 1901 connecting the right and left banks of the Vltava River. The bridge is double-track and is located on a national track included in the TEN-T system. This is the transit corridor Nuremberg – Pilsen – Prague – Brno – (Vienna, Bratislava, Poland). It is therefore one of the busiest railway bridges in the Czech Republic. The bridge is a cultural monument.</p><p>At the moment, it is also the best-known and most discussed railway bridge in the Czech Republic. The bridge has been in service for more than 120 years and its expected lifespan has long been exceeded. The railway needs to increase the track capacity. At the same time, it is being discussed what to do with the heritage-protected bridge. Repair? Replace? Shift? These are the questions and challenges facing the Railway Administration.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"7 3-4","pages":"18-20"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170151","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
Tuned mass dampers - evaluation of the effect on two real footbridges 调谐质量阻尼器--评估对两座实际人行天桥的影响
ce/papers Pub Date : 2024-09-11 DOI: 10.1002/cepa.3073
Radim Nečas, Jiří Kučera, Jan Koláček, Kristína Bezručová
{"title":"Tuned mass dampers - evaluation of the effect on two real footbridges","authors":"Radim Nečas,&nbsp;Jiří Kučera,&nbsp;Jan Koláček,&nbsp;Kristína Bezručová","doi":"10.1002/cepa.3073","DOIUrl":"https://doi.org/10.1002/cepa.3073","url":null,"abstract":"<div>\u0000 \u0000 <p>Pedestrian comfort, subtle design, minimizing the number of fixed supports of the footbridge or material saving. These are the key arguments for integrating tuned mass dampers into the bridge project. The goal is to protect people and structure from vibrations and damage. The following paper presents findings from the design, production and tuning of mass dampers, their optimization possibilities and benefits for bridge engineering. The validity of damper design was verified on two footbridges in the Czech Republic and Slovakia. It concerns the footbridge over the Svitava River in Bílovice nad Svitavou and the footbridge over the high-speed road in Banská Bystrica. Dynamic tests including measurement were carried out on both bridges before and after the installation of the dampers. The dynamic monitoring of the compliance of modal parameters was conducted using operational modal analysis (OMA). The evaluation of the dynamic tests also includes the response to pedestrian effects (comfort criteria) and the determination of the logarithmic decrement of the damping.</p>\u0000 </div>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"7 3-4","pages":"100-105"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cepa.3073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
DYNAMIC BEHAVIOUR AND DAMPING OF STEEL RAILWAY BRIDGES AT A SPEED OF 200 KM/H 时速 200 公里铁路钢桥的动态特性和阻尼
ce/papers Pub Date : 2024-09-11 DOI: 10.1002/cepa.3091
Pavel Ryjáček, Michal Polák, Vojtěch Dynybyl, Jiří Litoš
{"title":"DYNAMIC BEHAVIOUR AND DAMPING OF STEEL RAILWAY BRIDGES AT A SPEED OF 200 KM/H","authors":"Pavel Ryjáček,&nbsp;Michal Polák,&nbsp;Vojtěch Dynybyl,&nbsp;Jiří Litoš","doi":"10.1002/cepa.3091","DOIUrl":"https://doi.org/10.1002/cepa.3091","url":null,"abstract":"<div>\u0000 \u0000 <p>The subject of the paper is the comprehensive information on experiments carried out on a group of railway bridges near Břeclav, Vranovice and Soběslav, covering filler beams, steel girder bridges and composite bridges. The subject was to determine the behavior of bridges at higher speeds and to determine the value of damping as a basis for the preparation of HSR lines in the Czech Republic.</p>\u0000 <p>This paper describes the structures investigated and recapitulates selected findings, particularly related to the damping. Also, the general findings from a number of tests focusing on damping are also given.</p>\u0000 </div>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"7 3-4","pages":"111-114"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cepa.3091","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
INCREASING FATIGUE LIFE OF NEW WELDED AND REPARIED JOINTS BY HFMI TREATMENT 通过 HFMI 处理提高新焊接接头和修复接头的疲劳寿命
ce/papers Pub Date : 2024-09-11 DOI: 10.1002/cepa.3094
Jakub Štěpán, Pavel Ryjáček
{"title":"INCREASING FATIGUE LIFE OF NEW WELDED AND REPARIED JOINTS BY HFMI TREATMENT","authors":"Jakub Štěpán,&nbsp;Pavel Ryjáček","doi":"10.1002/cepa.3094","DOIUrl":"https://doi.org/10.1002/cepa.3094","url":null,"abstract":"<div>\u0000 \u0000 <p>There is a growing number of welded steel bridges in the world that are reaching the end of their design life. Repair of fatigue damage (cracks) or replacement with new modern designs is becoming an increasing issue. Fatigue damage is now one of the main design and construction risks associated with the construction of new dynamically stressed steel structures. Fatigue damage is now one of the main design and engineering risks associated with the construction of new dynamically stressed steel structures. Increasing fatigue life can be achieved by HFMI treatment that can be applied to new weld as well as existing welded joints. This paper presents the results of experiments focused on HFMI treatment to new and repaired butt welds of higher thicknesses.</p>\u0000 </div>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"7 3-4","pages":"153-156"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cepa.3094","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Steel Arch Structures with Prestressed Concrete Deck 带预应力混凝土桥面的钢拱形结构
ce/papers Pub Date : 2024-09-11 DOI: 10.1002/cepa.3077
Jiri Strasky
{"title":"Steel Arch Structures with Prestressed Concrete Deck","authors":"Jiri Strasky","doi":"10.1002/cepa.3077","DOIUrl":"https://doi.org/10.1002/cepa.3077","url":null,"abstract":"<p>Footbridges with prestressed concrete deck, which are suspended on steel arch ribs, are described in terms of the structural arrangement, static function and erection. These bridges create stiff structural systems which guarantee the bridges' favourable dynamic response. While steel arch ribs allow easy erections, the concrete deck guarantees structural integrity. The footbridges are structurally efficient, they are light and transparent, corresponds to the scale of the landscape and all structural members have human dimensions. They were erected with a minimum impact on the environment. Their structural arrangement is illustrated on examples of four bridges.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"7 3-4","pages":"132-137"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170076","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 Distance from Roads on Corrosion Loss in Weathering Steel Bridges 道路距离对风化钢桥腐蚀损失的影响
ce/papers Pub Date : 2024-09-11 DOI: 10.1002/cepa.3067
Miroslav Vacek, Vít Křivý, Monika Marťáková, Kateřina Kreislová, Markéta Vlachová
{"title":"Influence of Distance from Roads on Corrosion Loss in Weathering Steel Bridges","authors":"Miroslav Vacek,&nbsp;Vít Křivý,&nbsp;Monika Marťáková,&nbsp;Kateřina Kreislová,&nbsp;Markéta Vlachová","doi":"10.1002/cepa.3067","DOIUrl":"https://doi.org/10.1002/cepa.3067","url":null,"abstract":"<div>\u0000 \u0000 <p>There are numerous steel bridges worldwide, many of which are made from weathering steel. Trademarks of weathering steel, such as Corten (the United States), Atmofix (the Czech Republic), NAW-TEN and CORSPACE (Japan), or Q345CNH (China) are commonly used. Inland steel bridges are impacted by chloride ions, primarily dispersed into the air by road traffic from de-icing salt (NaCl) and brine solutions used in winter road maintenance, which can compromise the integrity of the bridges' load-bearing structures. The quantity of deposited chlorides fluctuates based on the distance from the source, especially for inland bridges, where it is determined by the distance from the road. There is also a difference between the winter season and the rest of the year. The study presents in-situ measurement data from two sites, analyzing the corrosion loss. Additionally, a regression analysis is conducted to understand the relationship between the distance from the road guide line and the corrosion loss.</p>\u0000 </div>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"7 3-4","pages":"73-76"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cepa.3067","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The new bridge “Lahnsteg Nauheim”, Wetzlar: slender, elegant, parametrically designed 新桥 "Lahnsteg Nauheim"，韦茨拉尔：纤细、优雅、参数化设计
ce/papers Pub Date : 2024-09-11 DOI: 10.1002/cepa.3069
Roman Gatsko, Milton Méndez
{"title":"The new bridge “Lahnsteg Nauheim”, Wetzlar: slender, elegant, parametrically designed","authors":"Roman Gatsko,&nbsp;Milton Méndez","doi":"10.1002/cepa.3069","DOIUrl":"https://doi.org/10.1002/cepa.3069","url":null,"abstract":"<p>This paper outlines the planning of a bridge in central Germany. Scheduled for construction in mid-2024, this new bridge is a replacement for a century-old pedestrian bridge crossing the Lahn river.</p><p>The proposed bridge will be an airtight-welded arch bridge, employing steel cross-sections in both the arch and tension member. Designed as a single-span, the arches extend 48.0m over the Lahn. The two arches have a flat rise of 4.65m, supporting the roadway through 9 inclined flat steel hangers.</p><p>This paper delves into the structural engineering aspects, exploring challenges inherent in the design process. An examination of the parametric design process, facilitated through 3-D modeling in Rhino® and Grasshopper®, will be presented, along with insights into their interface with the finite element modeling software, RFEM®. This process enables an engineering approach to form-finding and structure optimisation through iterative design checks for various elements and stages of the structural analysis.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"7 3-4","pages":"81-84"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170164","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
White City pedestrian Bridge –structural design of the cable-stayed future landmark, Baku (AZ) 白城人行天桥--未来地标斜拉桥的结构设计，巴库（亚利桑那州）
ce/papers Pub Date : 2024-09-11 DOI: 10.1002/cepa.3071
Konrad Freymann
{"title":"White City pedestrian Bridge –structural design of the cable-stayed future landmark, Baku (AZ)","authors":"Konrad Freymann","doi":"10.1002/cepa.3071","DOIUrl":"https://doi.org/10.1002/cepa.3071","url":null,"abstract":"<p>Once constructed, the Baku White City pedestrian bridge will be a landmark for the newly developed White City district in the east of the Capital. Designed by UNStudio, the bridge crosses the highway of 8<sup>th</sup> November Avenue and connects the newly build city to the seaside, forming a wide promenade.</p><p>Due to the pending construction of the mall as future bridge support, the bridge had to be redesigned. A cantilevering viewing platform will highlight the bridge's ending.</p><p>This paper covers the structural design of the architecturally shaped cable stayed bridge, supported through a 46 m high A-shaped, slightly curved pylon. Based on 3-D modelling in Rhino® and Grasshopper®, the FE-software SOFISTIK® is used both for cable force finding and bridge design.</p><p>The structural system, steel structure's specific detail for cable connection and its design approach have been documented.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"7 3-4","pages":"90-93"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170166","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
“Modernization of Railway Track Pardubice –Stéblová: New steel bridge over Labe river” "帕尔杜比采 - 斯特布洛娃铁路现代化：拉贝河上的新钢桥"
ce/papers Pub Date : 2024-09-11 DOI: 10.1002/cepa.3060
Ing. Jan Mitlöhner
{"title":"“Modernization of Railway Track Pardubice –Stéblová: New steel bridge over Labe river”","authors":"Ing. Jan Mitlöhner","doi":"10.1002/cepa.3060","DOIUrl":"https://doi.org/10.1002/cepa.3060","url":null,"abstract":"<p>The construction of a new double-track steel railway arch bridge over the Elbe river, which replaced the original single-track bridge from 1966, has significantly increased the capacity, speed, and smoothness of railway traffic in Pardubice. This 140-meter-long, three-span bridge was realized as part of the modernization and double-tracking of the Pardubice - Hradec Králové line between 2021-2024. Its construction, coupled with the provisional use of the original bridge, represents a remarkable engineering feat</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"7 3-4","pages":"33-37"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170157","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
Steel solutions for a sustainable bridge infrastructure of today and tomorrow 为当今和未来的可持续桥梁基础设施提供钢铁解决方案
ce/papers Pub Date : 2024-09-11 DOI: 10.1002/cepa.3059
Mike Tibolt, Wojciech Ochojski
{"title":"Steel solutions for a sustainable bridge infrastructure of today and tomorrow","authors":"Mike Tibolt,&nbsp;Wojciech Ochojski","doi":"10.1002/cepa.3059","DOIUrl":"https://doi.org/10.1002/cepa.3059","url":null,"abstract":"<p>Responsible for 70% of the global CO<sub>2</sub> emissions, infrastructure has a significant impact on our climate and the related consequences. Bridges are a major keystone of the infrastructure and take a leading position in its decarbonization. In this framework, low-carbon emission steels play an important role. Low-carbon emission steels, like ArcelorMittal's XCarb® recycled and renewably produced steels, are already available on the market. Combining scrap and renewable electricity, it offers very low levels of CO<sub>2</sub> emissions per ton of finished steel. The present paper describes how different steel solutions can be combined to lower the material input, to simplify the construction process and to reduce the maintenance efforts in bridge construction. The impact of efficient design has been assessed by a Life-Cycle Assessment (LCA) for bridge solutions with small and medium spans of up to 40 m. The paper concludes with a summary of recently realized bridge projects in Poland.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"7 3-4","pages":"27-32"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170156","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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