IABSE Symposium, Istanbul 2023: Long Span Bridges最新文献_第3页

Unique cable stayed bridge over the Mosoni-Danube with inclined steel box pylon in Hungary - Some details of the architectural and structural design 匈牙利莫索尼-多瑙河上独特的斜拉桥，倾斜钢箱塔-建筑和结构设计的一些细节

IABSE Symposium, Istanbul 2023: Long Span Bridges Pub Date : 1900-01-01 DOI: 10.2749/istanbul.2023.0870

G. Németh, Ákos Kővári

{"title":"Unique cable stayed bridge over the Mosoni-Danube with inclined steel box pylon in Hungary - Some details of the architectural and structural design","authors":"G. Németh, Ákos Kővári","doi":"10.2749/istanbul.2023.0870","DOIUrl":"https://doi.org/10.2749/istanbul.2023.0870","url":null,"abstract":"The city of Győr in western Hungary will be enriched with a significant transport investment of NIF PLC., a Hungarian infrastructure developer company. UNITEF’83 PLC. was commissioned with the design. The new road will cross the Mosoni-Danube over a spectacular new cable-stayed steel bridge. The future bridge is a 2-span, 68+144 meter-long box section structure, and its 65 meter-high inclined pylon will stand out from the city skyline. In addition to key design issues such as the global structural design and the details of the connections of the main load-bearing elements (cables), other structural problems requiring innovative solutions also arose during the design process. Several structural versions have been carefully analysed as early as in the initial phase of the design with the purpose of ensuring adequate torsional stiffness of the deck. Due to the sensitivity of the cable-stayed structure to the wind, cable vibration and the flow analysis of the beam and pylon also had to be carried out. The issue of construction technology had to be paid extra attention during the design procedure, since transportation by river and road were both limiting factors in the region. The paper covers the architectural and structural design of the future bridge in Győr, offering a brief outline of the most important details and solutions.","PeriodicalId":237396,"journal":{"name":"IABSE Symposium, Istanbul 2023: Long Span Bridges","volume":"22 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":"126537645","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

Single Tower Ground Anchored Suspension Bridge 单塔地面锚定悬索桥

IABSE Symposium, Istanbul 2023: Long Span Bridges Pub Date : 1900-01-01 DOI: 10.2749/istanbul.2023.0970

Jian Yang, Ying Gao Chen, Hongbin Yang, Hongyi Ye, Jing Hu

{"title":"Single Tower Ground Anchored Suspension Bridge","authors":"Jian Yang, Ying Gao Chen, Hongbin Yang, Hongyi Ye, Jing Hu","doi":"10.2749/istanbul.2023.0970","DOIUrl":"https://doi.org/10.2749/istanbul.2023.0970","url":null,"abstract":"China is a country dominated by mountains and plateaus, accounting for about 70% of the total land area，Unlike other countries, a large number of people live in the western mountainous areas, and there is a strong demand for modern infrastructure.Lvzhijiang bridge is located in the Yuxi Chuxiong Expressway in Yunnan Province, crossing lvzhijiang River. The vertical height from the bridge deck to the top of the mountain is 330 meters, and which is 320 meters from the bridge deck to the river. Traditionally, suspension bridges have one cable tower on each side to support the main cable. In the construction process of lvzhijiang bridge, we proposed the solution of single tower ground anchored suspension bridge due to the site conditions on one side of the canyon, which is almost a cliff.The main span of Lvzhijiang Bridge is 780m, the east side span is 140m, and there is no west side span. The stiffening beam is steel box girder with the total length of 711m. The terrain on the west side is steep. In order to avoid mountain excavation, the integral steel box girder is adjusted to separated steel box girder to enter into the tunnel, so the tunnel portal section is expanded.Unlike other saddles, we designed a totally new type of saddle, roller combined cable saddle.Single tower ground anchored suspension bridge is suitable for extreme terrain conditions, which can avoid a lot of excavation and has obvious environmental protection effect.","PeriodicalId":237396,"journal":{"name":"IABSE Symposium, Istanbul 2023: Long Span Bridges","volume":"184 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":"121723608","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

Response of buried arch bridge structure to seismic impact 埋地拱桥结构对地震冲击的响应

IABSE Symposium, Istanbul 2023: Long Span Bridges Pub Date : 1900-01-01 DOI: 10.2749/istanbul.2023.0294

引用次数: 0

The Retrofit in Bridges System of Ring Road of the Belém Metropolitan Region - Pará, Brazil 巴西贝尔萨姆大都市区-帕尔<e:1>环城公路桥梁系统改造

IABSE Symposium, Istanbul 2023: Long Span Bridges Pub Date : 1900-01-01 DOI: 10.2749/istanbul.2023.0308

{"title":"The Retrofit in Bridges System of Ring Road of the Belém Metropolitan Region - Pará, Brazil","authors":"","doi":"10.2749/istanbul.2023.0308","DOIUrl":"https://doi.org/10.2749/istanbul.2023.0308","url":null,"abstract":"This paper approaches the retrofit in the bridges system of the “Alca Viaria,” or ring road, built\u0000in the early 2000s in the Metropolitan region of Belem, in the Brazilian state of Para. The ring’s route\u0000is 87 kilometers (km) long. It connects the Southwest and South of the state region to the metropolitan\u0000region. It also crosses the three rivers of Amazon’s delta in the state of Para: Guama River, with 1,975\u0000m in crossing extension; Acara River and Moju, both with 860 m in crossing extensions. The retrofit\u0000of structural systems takes place from the high incidence of impact between barges and bridges,\u0000occurring over the last twenty years of the structure’s service life. This results in significant damage\u0000to the supports and leads to the partial collapse of the bridge. In the last five years, these kinds of\u0000accidents required the retrofit of structural systems with a stayed-cable and the exchange of all strands\u0000in the Guamá stayed-cable bridge. Besides this, it also required the construction of floating\u0000protections on the lateral bent of the canal, the Moju, and Acará bridges. Therefore, the Department\u0000of State and Transportation of Pará has been developing efforts to ensure the operation of the\u0000system.","PeriodicalId":237396,"journal":{"name":"IABSE Symposium, Istanbul 2023: Long Span Bridges","volume":"15 42","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114044547","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

Behavior of half-joints: design, simulation, implementation,and execution of laboratory tests 半接头的行为:设计、模拟、实施和实验室测试的执行

IABSE Symposium, Istanbul 2023: Long Span Bridges Pub Date : 1900-01-01 DOI: 10.2749/istanbul.2023.0330

R. Asso, M. Domaneschi, G. Marano, F. Palmisano, Giuseppe Palombella

{"title":"Behavior of half-joints: design, simulation, implementation,and execution of laboratory tests","authors":"R. Asso, M. Domaneschi, G. Marano, F. Palmisano, Giuseppe Palombella","doi":"10.2749/istanbul.2023.0330","DOIUrl":"https://doi.org/10.2749/istanbul.2023.0330","url":null,"abstract":"European countries are characterized by an extensive infrastructural network, mainly built around the 1960s and 1970s. In that period prefabrication processes were starting to gain ground, and one of the most spread and studied typologies of bridges was constituted by reinforced or prestressed concrete decks. Those structures have gone through years of service, which caused the inevitable degradation of the materials. Moreover, the design and construction processes of that period have soon become obsolete, and the knowledge relative to the influence of detailing increased significantly. One particular element that has been commonly used has been the half-joint, which is easy to prefabricate and has a strategic impact. However, in recent years this solution is showing critical aptitudes in resisting structural degradation and material decay. Besides, Structural Health Monitoring (SHM) strategies are gaining attention since they are a very useful tool for gathering information on the current state of the structure and then for evaluating intervention plans to improve safety. Indeed, existing bridges, despite their working age, are still crucial to the development and sustainability of community life, and their decommissioning would be an act of critical impact on the communities (e.g., economy, logistics, sustainability). This contribution presents the design, the simulation, the implementation and the preliminary results of laboratory tests on half-joints in reinforced concrete beams that will be developed at the Politecnico di Torino in connection to CPM Samarate. They are designed to test and compare different monitoring techniques along with different steel reinforcement configurations.","PeriodicalId":237396,"journal":{"name":"IABSE Symposium, Istanbul 2023: Long Span Bridges","volume":"28 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":"131497400","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 Adaptive Digital Twin with lifecycle internal force monitoring and control 具有全生命周期内力监测与控制的桥梁自适应数字孪生

IABSE Symposium, Istanbul 2023: Long Span Bridges Pub Date : 1900-01-01 DOI: 10.2749/istanbul.2023.0969

Dacheng Wu

{"title":"Bridge Adaptive Digital Twin with lifecycle internal force monitoring and control","authors":"Dacheng Wu","doi":"10.2749/istanbul.2023.0969","DOIUrl":"https://doi.org/10.2749/istanbul.2023.0969","url":null,"abstract":"The load distribution of boundary conditions such as bridge bearings and cables is a key factor in determining the internal forces within a bridge. Direct load monitoring of bearings and cables involves integrating sensors into them. However, the drift and creep of sensors and changes in the formula relationship between sensor readings and loads require regular calibration of the monitoring system. Conventional calibration methods require the bearings and cables to be in an unloaded state, which is not practical from an engineering perspective. An innovative in-situ calibration process and technology have been developed for comprehensive life-cycle measurement of composite loads on load-bearing components. This new method not only calibrates the sensors within the system, but also updates the relationship between loads and sensor readings; The solution has been proven to be reliable and effective through a comprehensive evaluation process that includes extensive mechanical analysis, laboratory testing, official calibrations, and practical implementation in various types of bridge structures.The technology not only reveals the load distribution status, enabling model updating to the Structural Health Monitoring (SHM)for improved accuracy of structure models, but it also can precisely control bearing loads and cable tension adaptively with integrated power equipment, achieving optimized load distribution throughout the entire structure. The internal force-focused Bridge Adaptive Digital Twin supported by this core technology not only enhances the safety, durability, and total cost of ownership of the structure, but also reduces the size of the structural cross-section and the amount of building materials used in the design stage, thereby contributing to carbon neutrality.","PeriodicalId":237396,"journal":{"name":"IABSE Symposium, Istanbul 2023: Long Span Bridges","volume":"29 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":"134503143","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

Design features of main passage project of Ningbo-Zhoushan Port 宁波-舟山港主航道工程设计特点

IABSE Symposium, Istanbul 2023: Long Span Bridges Pub Date : 1900-01-01 DOI: 10.2749/istanbul.2023.0982

M. Fang

{"title":"Design features of main passage project of Ningbo-Zhoushan Port","authors":"M. Fang","doi":"10.2749/istanbul.2023.0982","DOIUrl":"https://doi.org/10.2749/istanbul.2023.0982","url":null,"abstract":"The main channel project of Ningbo Zhoushan Port is a large-scale bridge connecting island project in the eastern sea of China, the total length of the main line is 28 km and Yushan branch bridge 8.8km. In order to deal with the complex sea environmental conditions, the project pays attention to the industrialization of bridge design, and carries out design standardization, component factory-manufacturing and construction assembling. The whole line pursues standardization designing in the span layout and type of cross section of box girder, and the superstructure of non-navigable channel bridge is mainly composed of segment prefabricated and whole-span pre-casted box girder. In order to improve the connection problem of pre-casted pier, the substructure of non-channel bridge adopts pre-casted thin-wall hollow pier with internal wet-joining new structure. In order to effectively control the long-term bending problem of large-span continuous rigid concrete structure bridge, the north channel bridge with main span of 260m adopts the mixed structure of concrete box girder with segment prefabrication and steel box girder with the length of 90m in the middle part. In order to reduces the impact on the villages along the line, the column, and covering beam and T beams applied new technology of standardized design, component prefabrication and integrated erection. Meanwhile, the UHPC + HPC prefabricated combination T beam structure first used in the ramp B of the Yandun interchange bridge.","PeriodicalId":237396,"journal":{"name":"IABSE Symposium, Istanbul 2023: Long Span Bridges","volume":"136 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":"133787526","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

Nonlinear buffeting response of long suspension bridges considering parametric excitation due to large-scale turbulence 考虑大尺度湍流参数激励的长悬索桥非线性抖振响应

IABSE Symposium, Istanbul 2023: Long Span Bridges Pub Date : 1900-01-01 DOI: 10.2749/istanbul.2023.0351

Niccolò Barni, O. Øiseth, C. Mannini

{"title":"Nonlinear buffeting response of long suspension bridges considering parametric excitation due to large-scale turbulence","authors":"Niccolò Barni, O. Øiseth, C. Mannini","doi":"10.2749/istanbul.2023.0351","DOIUrl":"https://doi.org/10.2749/istanbul.2023.0351","url":null,"abstract":"The accurate modelling of self-excited forces for long-span suspension bridges is known to be very important for both the assessment of the flutter stability and the calculation of the buffeting response to turbulent wind. It has also been proved that self-excited forces often parametrically depend on variations of the angle of attack, which can easily be induced by large-scale turbulence. A nonlinear buffeting model is outlined here to explore this issue, emphasising the influence of nonlinear turbulence effects on the stresses in the main structural elements and not only on displacements and accelerations of the bridge deck. The proposed approach is based on the 2D Rational Function Approximation model for self-excited forces, recently developed and experimentally validated by the authors. Despite the complexity of the problem, this model only slightly changes the dynamic equations based on the linearised theory, making it friendly to be implemented. The Hardanger Bridge, in Norway, is chosen as a case study, as its aerodynamic derivatives strongly depend on the angle of attack. The contribution of the wind load to the internal forces in the main cables and in the hangers is found to be only marginal. In contrast, the stresses induced in the deck girder are large, and the results for high wind speed emphasise the strong impact on the torsional moment of the modulation of the self-excited forces due to the spatio-temporal fluctuation of the angle of attack produced by low-frequency turbulence.","PeriodicalId":237396,"journal":{"name":"IABSE Symposium, Istanbul 2023: Long Span Bridges","volume":"804 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114001697","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

Monitoring of a Large Extradosed Bridge in Thailand – Lessons Learned 泰国一座大型特大桥的监测——经验教训

IABSE Symposium, Istanbul 2023: Long Span Bridges Pub Date : 1900-01-01 DOI: 10.2749/istanbul.2023.0775

R. Geier, T. Mack

{"title":"Monitoring of a Large Extradosed Bridge in Thailand – Lessons Learned","authors":"R. Geier, T. Mack","doi":"10.2749/istanbul.2023.0775","DOIUrl":"https://doi.org/10.2749/istanbul.2023.0775","url":null,"abstract":"To the north of Bangkok (Thailand), a new motorway section has been realized in recent years to relieve the surrounding routes in Nonthaburi Province, whose main characteristic is an extradosed bridge over the Chao Phraya river with a total length of 460 m. The building consists of two pylons with golden dome and 96 stay cables carrying a box girder cross-section designed for six lanes across the river. To monitor the structural behavior of the bridge an extensive monitoring system was awarded by the client to DYWIDAG Systems International GmbH in cooperation of Schimetta Consult who have optimized, designed and realized the system. In total 45 sensors are monitoring permanently temperatures, strains and deflections of the bridge, inclinations of the pylons, movements of the expansion joints, wind velocities, accelerations and cable forces. The data are automatically stored on site, provided via a UMTS connection to an external server within a few minutes, enabling continuous display of the signals on a homepage for easy access by the client In addition, the measurement data are being summarized on a half-year base and the results are submitted to the clients by a measurement report. The monitoring system is continuously acquiring data since opening of the structure to regular traffic, enabling a very good insight to the structural behavior.","PeriodicalId":237396,"journal":{"name":"IABSE Symposium, Istanbul 2023: Long Span Bridges","volume":"147 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":"114516597","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

40 Years History about Structure, Design and Construction of the First Steel Orthotropic Bridge in Sofia 索非亚第一座正交异性钢桥的结构、设计和建造40年的历史

IABSE Symposium, Istanbul 2023: Long Span Bridges Pub Date : 1900-01-01 DOI: 10.2749/istanbul.2023.0417

K. Kazakov, D. Partov, D. Dinev, L. Georgiev

{"title":"40 Years History about Structure, Design and Construction of the First Steel Orthotropic Bridge in Sofia","authors":"K. Kazakov, D. Partov, D. Dinev, L. Georgiev","doi":"10.2749/istanbul.2023.0417","DOIUrl":"https://doi.org/10.2749/istanbul.2023.0417","url":null,"abstract":"The most spectacular and large bridge in Bulgaria and one of the largest in South-East Europe bridge in Sofia was put into operation at the beginning of October 1983. The bridge perform a multi-span, prestressed reinforced concrete construction with a total length of 2114 m, a total width of 21.5 m and an average height above the ground of about 10 m. This important, effective and aesthetic bridge serves as a connection between the busiest input-output highway and the airport of Sofia. It ensures a convenient access to some highways, railways, streets and the airport. As a result of this requirement, the erection of the prestressed reinforced concrete bridge is not allowed to cross the railway between Sofia and Varna. So, a 90 m long middle steel part was designed to cover two spans of 45 m each in the multi-span bridge structure. In transverse direction the orthotropic bridge, consists of two individual parallel triple-box decks parts, which carry the traffic in two opposite directions. Each deck has a 7.5 m wide roadway with two lanes. The bridge is analysed as a frame structure using the finite element method. The design parameters of the bridge are verified by static and dynamic tests. The steel structure is designed as a two-span continuous beam with a box cross-section and an orthotropic deck. The paper deals with the most important aspects which consider the design approach and the construction process of this large, steel orthotropic bridge in Bulgaria.","PeriodicalId":237396,"journal":{"name":"IABSE Symposium, Istanbul 2023: Long Span Bridges","volume":"26 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":"114739123","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