Development of Highly Efficient Construction Technologies for Super Long Span Bridge

Kim, Hee Seok; Kim, Young Jin; Chin, Won Jong; Yoon, Hyejin

doi:10.4236/eng.2013.58075

Cited by 8 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…e suppression of the overload suppression problem in power and electrical construction troubles the construction workers. Similarly, in this exploration of the construction technology of power and electrical engineering, they also face this problem [15]. In the structure of the hybrid active power filter, the load is connected in parallel with the passive power filter in series.…”

Section: Calculation Methods For Crack Prevention Of Large-volume Power and Electrical Constructionmentioning

confidence: 99%

Construction Technology and Quality Control of Power and Electrical Engineering Based on Convolutional Neural Network

Xiao¹

2021

Security and Communication Networks

View full text Add to dashboard Cite

In the context of the Internet era, more and more parties have begun to store, process, and analyze data, but the accompanying question is whether people are reasonable about the data under the impact of massive data, effective and efficient analysis, especially the problems faced in this project. This article aims to study the quality control problems faced by electric power and electrical engineering in the construction process through the use of convolutional neural networks. Under this idea, this article proposes a multilayer convolution method. The experimental results show that the use of the improved multilayer convolution method for the convolution method of the convolutional neural network can effectively improve the multiple analysis problems of small datasets in the construction of electric power and electrical engineering; in this way, the relevant data are analyzed; by controlling the quality of construction, the quality problem has been greatly improved. After comparison, it is concluded that the overall construction quality has increased by 35%.

show abstract

Section: Calculation Methods For Crack Prevention Of Large-volume Power and Electrical Constructionmentioning

confidence: 99%

Construction Technology and Quality Control of Power and Electrical Engineering Based on Convolutional Neural Network

Xiao¹

2021

Security and Communication Networks

View full text Add to dashboard Cite

show abstract

“…The construction of massive civil structures, such as long-span bridges, is on the rise. According to the Korea Institute of Construction Technology, the size of the global long-span bridges market has increased sharply since 2011, and there has been a steady increase since then [1]. Most long-span bridges are cable-supported bridges, in which the main tower and the bridge deck are connected by cables.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on a Cable Structure Equipped with an Electrodynamic Damper and Its Monitoring Strategy through Energy Harvesting

Kye

Jung

2019

Sensors

View full text Add to dashboard Cite

The vibration of cables in a cable-supported bridge affects its serviceability and safety. Therefore, cable dampers are essential for vibration control, monitoring, and the further maintenance of such bridges. In this study, the vibration control performance of an electrodynamic damper applied to a cable used in a footbridge was experimentally verified considering the major design variables of the damper. The damping performance was analyzed by varying the damping ratio according to the excitation condition and external circuit resistance. The acceleration and displacement at each measurement point and the frequency-domain response decreased. Considering the dominant response conditions of the cables in the bridge, an effective additional attenuation was observed. In addition, the harvesting power considering the measurement frequency and power loss was sufficient to operate a wireless measuring sensor by examining the energy harvesting performance from the cable measurement data of an actual bridge in service. Finally, a stepwise operation strategy for a cable vibration monitoring system was suggested and examined by analyzing the meteorological observation data and the power output according to the wind environment. The results demonstrate the feasibility of using an electrodynamic damper to build an integrated monitoring system capable of simultaneous cable vibration reduction and energy harvesting.

show abstract

“…In order to resolve these issues, many studies have been conducted to optimize the cost-to-performance ratio. Among those concerning bridge technologies, the superstructure of a bridge was identified as a critical aspect in maximizing bridge efficiency [ 1 , 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Design Optimization and Structural Performance Evaluation of Plate Girder Bridge Constructed Using a Turn-Over Process

et al. 2017

View full text Add to dashboard Cite

A recent trend in bridge construction has been the optimization of the cost-to-performance ratio. The most effective way to optimize the cost-to-performance ratio is to maximize the efficiency of the superstructure. Currently, many bridge engineers and designers favor two- or three- girder plate superstructures, due to their cost advantages. However, research on the performance enhancements of the I-type girder in two- or three- girder plate bridges is lacking. One of the most important performance improvement technologies for the I-type girder is the “preflex” method. In the preflex method, the specimen is inverted during the construction process to apply prestressed cambering to the specimen by using self-weight. However, a problem with the preflex construction method is difficulty with inverting the girder/plate system during the concrete curing process. Therefore, a new inverting system called Turn-Over (TO) wheel was proposed. Using TO wheels, wider variations to the I-type girder design can be achieved. Using this TO construction method, various cross sectional designs of girder plate systems can be considered due to its easiness in inverting the girder/plate system. In this study, the location of concrete confinement sections between the steel I-beams and concrete plates was varied in an I-girder cross-sectional design. Design parameters included effective height, flange thickness, flange width, confining concrete section width, etc. From this study, the optimum cross-sectional design of the I-girder/concrete plate system was achieved. Then, a single 20 m TO girder/plate system and two 20 m TO girder bridges were constructed and tested to evaluate their performance. From the test, failure behavior, load carrying capacity, crack pattern, etc., are obtained. The results are discussed in detail in this paper.

show abstract

Development of Highly Efficient Construction Technologies for Super Long Span Bridge

Cited by 8 publications

References 0 publications

Construction Technology and Quality Control of Power and Electrical Engineering Based on Convolutional Neural Network

Construction Technology and Quality Control of Power and Electrical Engineering Based on Convolutional Neural Network

Experimental Investigation on a Cable Structure Equipped with an Electrodynamic Damper and Its Monitoring Strategy through Energy Harvesting

Design Optimization and Structural Performance Evaluation of Plate Girder Bridge Constructed Using a Turn-Over Process

Contact Info

Product

Resources

About