Bridge construction equipment

Pipinato, Alessio

doi:10.1016/b978-0-12-823550-8.00022-6

Cited by 6 publications

(5 citation statements)

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“…It means that crossings in most counties are out of the hazard area. A railway bridge is a specially constructed structure to carry the rail traffic flow across an obstacle, including rivers (Pipinato, 2022). However, flooding can cut off access to bridges and create challenges to freight and passenger transport.…”

Section: State-wide Analysis Resultsmentioning

confidence: 99%

A Comprehensive Flood Risk Assessment for Railroad Network: Case Study for Iowa

Cikmaz,

Alabbad,

Yildirim

et al. 2023

Preprint

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Climate-induced disasters, particularly floods, pose a substantial risk to human well-being. These risks encompass economic losses, infrastructural damage, disruption of daily life, and potential loss of life. This study focuses on understanding flood risks to critical infrastructure, emphasizing the resilience and reliability of essential services during such disasters. In the United States, the railway network is vital for the distribution of goods and services. This research specifically targets the railway network in Iowa, a state where the impact of flooding on railways has not been extensively studied. We employ comprehensive GIS analysis to assess the vulnerability of the railway network, bridges, rail crossings, and facilities under 100- and 500-year flood scenarios at the state level. Additionally, we conduct a detailed investigation into the most flood-affected counties, focusing on the susceptibility of railway bridges. Our state-wide analysis reveals that in a 100-year flood scenario, up to 9% of railroads, 8% of rail crossings, 58% of bridges, and 6% of facilities are impacted. In a 500-year flood scenario, these figures increase to 16%, 14%, 61%, and 13%, respectively. Further, our secondary analysis using flood depth maps indicates that approximately half of the railway bridges in the flood zones of the studied counties could become non-functional in both flood scenarios. These findings are crucial for developing effective disaster risk management plans and strategies, ensuring adequate preparedness for climate change impacts on railway infrastructure.

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Section: State-wide Analysis Resultsmentioning

confidence: 99%

A Comprehensive Flood Risk Assessment for Railroad Network: Case Study for Iowa

Cikmaz,

Alabbad,

Yildirim

et al. 2023

Preprint

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“…A suspension bridge has a series of main suspension cables connecting the horizontal road deck (through which the automobiles transit) to the vertical tower, making an angle γ = 90 deg (Figure 3). The main suspension cables transmit tension forces and connect from anchors (i.e., concrete blocks at shore -located out of the photo to the left beyond point A) at each of their ends to the top of the intermediate towers (Pipinato, 2021). The two connection points A and B have an original average diagonal cable length of 2km, where the cables are not completely stretched, making an angle of α = 30 degrees with the horizontal.…”

Section: Inclined Bridge (E)mentioning

confidence: 99%

Applied Physics of Extended (or Gamma) Sine and Cosine Functions

Teia¹

2023

APR

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Evolution of fundamental mathematical tools (such as trigonometric functions sin(α) and cos(α)) has inherent repercusions on how we solve problems in applied physics. Recently published extended or gamma sine function sin&lowast;(α, γ) and cosine function cos&lowast;(α, γ) — along with their upgraded identity angle sum and subtraction rules sin&lowast;(A ± B, γ) and cos&lowast;(A ± B, γ) — have enabled a new approach on how to tackle practical problems using mathematics (a published example is the energy-coupled mass-spring oscilatory system). The usefullness of a theory is measured by both the insight it generates, and the solution it produces, when applied to physical problems with pertinent applications. Its acceptance amongst peers depends on the availability of such examples, as way-showers of how the theory can be applied in practice, and how useful results can be derived by employing it in similar or related examples/problems. This article has the purpose of providing this bridge between the above theories and its application in some common scientific fields. Several exercises are solved employing these new formulae, and new potential applications are identified that cover various topics in physics such as civil engineering (i.e., measuring distances in bridges), aerospace and aeronautics (i.e., turbine velocity triangles and optimum orbital deployment for a satellite constellation) and telecommunications (i.e., antenna array beamforming and steering, as well as new modulations based on quadrature phase-shift keying). These problems (and solutions) are designed to indicate the usefullness of these new expanded functions, and can become practical classroom exercises applicable to both academic and professional environments.

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“…Cable-stayed and suspension bridges of the kilometer class have become common (Mao and Hu, 2020). The Russky Island Bridge in Russia (Pipinato, 2015) is the cable-stayed bridge with the longest span in the world (1104 m) and a total length of 3100 m. The 1915 Canakkale Bridge in Turkey is the longest suspension bridge today (Mersin, 2020), with a main span of 2023 m. Recently, the construction of sea-spanning bridges on a larger scale has been put on the schedule in different parts of the world. For example, Eurasia and Africa are separated by the Strait of Gibraltar (13 km in width), the Bosporus Strait (30 km in width) separates Europe from Asia, the Tsugaru Strait (23.3 km in width) separates Honshu and Hokkaido islands of Japan.…”

Section: Introductionmentioning

confidence: 99%

Analytical assessment of the full-bridge response to the vertical live load: An algorithm for hybrid cable-stayed suspension bridges

Zhang,

Chen,

Chang

et al. 2023

Advances in Structural Engineering

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Hybrid cable-stayed suspension bridges combine the advantages of cable-stayed and suspension bridges, mitigating their deficiencies. Due to its super spanning ability, this novel form of bridge enjoys a bright application prospect as a large-span structure. This study introduces an analytical algorithm to estimate the full-bridge response of a hybrid cable-stayed suspension bridge with a vertical uniformly distributed load applied to the main beam. This method is based on the assumption that all parameters, such as the geometric configuration, internal force distribution, and material properties, of the whole bridge under a dead load are known; then, it analyzes the full-bridge response under a live load. First, the minimum and independent basic unknown parameters of the full-bridge response are determined. Next, the governing equations are derived and solved based on the conservation of unstressed length of each section of cable, closure of span lengths and elevation difference in different spans, and conditions for stress balance of the main beam. Thus, the values of basic unknown parameters are obtained. Finally, they are substituted into the governing equations to estimate the full-bridge response, including each bridge component’s internal forces and deflections. The proposed analytical method involves no iterative procedures when dealing with nonlinear problems but only focuses on the bridge’s state with and without loading. The results are obtained directly by solving the equations, which have the advantages of high efficiency, simplicity, and clear physical meaning. Finally, the feasibility and effectiveness of the proposed method are verified by a finite-element-based calculation of an exemplary asymmetric cable-stayed suspension cooperation system bridge with a main span of 1400 m.

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Bridge construction equipment

Cited by 6 publications

References 0 publications

A Comprehensive Flood Risk Assessment for Railroad Network: Case Study for Iowa

A Comprehensive Flood Risk Assessment for Railroad Network: Case Study for Iowa

Applied Physics of Extended (or Gamma) Sine and Cosine Functions

Analytical assessment of the full-bridge response to the vertical live load: An algorithm for hybrid cable-stayed suspension bridges

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