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New Technologies of Steel and Concrete Bridges

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Civil Engineering".

Deadline for manuscript submissions: closed (20 September 2022) | Viewed by 1692

Special Issue Editors


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Guest Editor
College of Civil and Transportation Engineering, Hohai University, Nanjing, China
Interests: smart sensor networks; bridge health monitoring; data-driven structural condition evaluation
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Civil, Environmental, and Construction Engineering, University of Central Florida, Orlando, FL 32816, USA
Interests: sensor development for structural health monitoring; sensing system development; UAV-based remote sensing; deep learning-based computer vision application
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

As key components within civil infrastructure transportation systems, bridges overcome geopolitical barriers and can serve as a communication facility that span across rivers, lakes, seas, and gorges. Bridges are usually regarded as an important cornerstone of economic development and a symbol of scientific development for a country. In order to cope with complex service environments (e.g., extreme temperature variations, seawater corrosion, and strong wind conditions) and to meet stringent service requirements (e.g., longer span, lighter weight, and higher piers), various studies have been carried out throughout the world, such as high-performance materials, bridge design methods, structural simulation technologies, vibration control technologies, construction strategies, bridge monitoring technologies, and safety evaluation technologies.

This Special Issue of the journal Applied Sciences, “New Technologies of Steel and Concrete Bridges”, addresses the latest research achievements regarding steel and concrete bridges. This Special Issue is open for all contributors in the field and is welcoming both original research and review papers.  Topics of interest include, but are not limited to, new materials with low density and high durability, prefabricated construction technology, intelligent measurement technology, data-driven load modeling technology, bridge calculation technology that considers coupling load effects, bridge construction technology based on visualization methods, application of artificial intelligence in bridge operation and maintenance, and bridge management technologies.

Prof. Dr. Guangdong Zhou
Dr. Peng(Patrick) Sun
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • high-strength material
  • structural analysis
  • wind-vehicle-bridge coupling calculation
  • vibration control
  • intelligent construction
  • bridge health monitoring
  • bridge information technology
  • bridge safety assessment
  • bridge maintenance technology
  • nondestructive evaluation

Published Papers (1 paper)

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Research

19 pages, 7701 KiB  
Article
Test of Broken Suspender Specimen and Equivalent Static Calculation Method for Half-Through and Through Concrete-Filled Steel Tubular Arch Bridges
by Kangming Chen, Jianping Luo, Qingxiong Wu and Huanwei Wang
Appl. Sci. 2022, 12(22), 11619; https://doi.org/10.3390/app122211619 - 16 Nov 2022
Cited by 2 | Viewed by 1288
Abstract
In response to the frequent collapse of main girders caused by the breakage of suspenders on half-through and through arch bridges, a test specimen has been designed and fabricated with a through concrete-filled steel tube (CFST) arch bridge as the engineering background. A [...] Read more.
In response to the frequent collapse of main girders caused by the breakage of suspenders on half-through and through arch bridges, a test specimen has been designed and fabricated with a through concrete-filled steel tube (CFST) arch bridge as the engineering background. A new electromagnetic disconnect trigger is employed to realize the rapid suspender breakage in the test specimen. Dynamic response tests of the residual structure of the arch bridge after suspender failures employing the test specimen have been carried out. A finite element model accounting for the suspender breakage dynamic process has been constructed by implementing ANSYS/LS-DYNA, and the results of the test and finite element analysis are compared. In order to simplify the dynamic response calculation process of the residual structure after hanger failures, the dynamic coefficient is introduced, and an equivalent static calculation method (ESCM) considering the dynamic effect of the suspender fracture is presented. Eleven kinds of CFST standard arch bridges with different spans are constructed, the static and dynamic effects of the standard arch bridge with various dynamic coefficients are compared, and then their corresponding dynamic coefficients for various suspender fractures are determined. The obtained results reveal that the proposed electromagnetic suspender breakage trigger can realize the hanger fracturing within 0.1 s, which accurately simulates the fracture process of an actual bridge suspender, and the influence on the value of the dynamic coefficient can be ignored when the duration for suspender fracture is less than or equal to 0.15 s. The influence of suspender fracture on the displacement and stress of the longitudinal beam is more notable than those of the arch rib. In particular, the long suspender breakage has the highest influence on the displacement and stress of the longitudinal beam and arch rib. The fracture of the second short suspender has a remarkable impact on the suspender force of the adjacent hanger. When the ESCM is utilized to assess the mechanical behavior of the half-through and through CFST arch bridge, the dynamic coefficients of the longitudinal beam (suspender) were evaluated to be, conservatively, 1.8 (1.8) and 1.8 (1.7), respectively. Full article
(This article belongs to the Special Issue New Technologies of Steel and Concrete Bridges)
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