Preventive maintenance on superstructure and pier of aged short-span steel railway structures

Weiwei Lin*, Nozomu Taniguchi, Teruhiko Yoda

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

Deterioration of existing bridges has become a severe problem and seriously affect the serviceability and durability of railway system in many countries. A preventive maintenance strengthening method using rubber-latex mortar, Glass Fiber Reinforced Polymer (GFRP) plates, lightweight rapid hardening concrete, and reinforcement was introduced this study, which can be used to strengthen the both steel bridge superstructures and bridge piers. In order to confirm the real effects of the present strengthening method, field loading test on a short-span railway bridge and laboratory tests on a steel column were performed. The results on both original and strengthened specimens were summarized and compared. For the railway bridge superstructure, theoretical results were also provided to confirm the strengthening effects. For the steel piers, however, numerical models were built to provide the load carrying capacity of the original pier. The load-displacement curve and load-strain response at key sections were measured in the loading tests and reported in this paper. According to the results, the present renovation method could greatly enhance the rigidity of old steel railway bridge superstructures and the load carrying capacity of existing piers, resulting in the extension of the residual service life of short-span railway bridge superstructures and improvement of seismic behavior of steel piers.

Original languageEnglish
Title of host publicationIABSE Symposium, Nantes 2018
Subtitle of host publicationTomorrow's Megastructures
PagesS20-91-S20-98
ISBN (Electronic)9783857481611
Publication statusPublished - 1 Jan 2018
MoE publication typeA4 Article in a conference publication
EventIABSE Symposium: Tomorrow's Megastructures - Nantes, France
Duration: 19 Sep 201821 Sep 2018
Conference number: 40

Publication series

NameIABSE Symposium Report
Volume112

Conference

ConferenceIABSE Symposium
CountryFrance
CityNantes
Period19/09/201821/09/2018

Keywords

  • Loading test
  • Maintenance
  • Pier
  • Railway structures
  • Short-span bridges
  • Superstructure

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