Strengthening of bridge decks by adding new concrete layers

Ourania Tsioulou, Andreas Lampropoulos, E.C. Apostolidi, N. Karela, Stephanos E. Dritsos

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBN

Abstract

Deterioration or need to increase the load bearing capacity of bridge decks requiresthe strengthening of the decks by the addition of new elements. Placing reinforcedconcrete layers to strengthen or repair and strengthen concrete bridge decks on the compressionor the tension side of the element is a normal construction practice. However, there aremany unresolved issues regarding the capacity and the interface behaviour between the existingdeck and the new layer of the strengthened elements especially under seismic actions. Thenew deck created is a reinforced concrete composite member. In the present study an analyticalmodel has been developed for the estimation of the ultimate strength of such a compositedeck. The shear stress at the interface of the function results from experimental data and dependson the connecting means. The influence of cyclic loading on the behaviour of the interfacebetween the new concrete layer and the existing deck is considered. The model iscomplemented by a computer program in order to facilitate the relative calculations. Finally,an analytical procedure for the structural design and detailing of strengthened or repairedand strengthened bridge decks by the addition of new concrete is proposed. Moreover the inducedshear stresses and forces at the interface can be assessed to design the necessary connectionmeans, in order that there will be no failure of the contact interface, before theretrofitted deck reaches its flexural capacity.
Original languageEnglish
Title of host publicationProceedings of the 4th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering
Place of PublicationAthens, Greece
PublisherNTUA
Pages0-0
Number of pages1
Publication statusPublished - 12 Jun 2013
EventProceedings of the 4th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering - Kos Island, Greece, 12-14 June, 2013
Duration: 12 Jun 2013 → …

Conference

ConferenceProceedings of the 4th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering
Period12/06/13 → …

Fingerprint

Bridge decks
Strengthening (metal)
Concretes
Concrete bridges
Bearing capacity
Structural design
Deterioration
Reinforced concrete
Computer program listings
Shear stress
Loads (forces)
Repair
Composite materials

Bibliographical note

© 2013 The authors

Keywords

  • Bridge deck
  • Concrete layer
  • Strengthening
  • Retrofit

Cite this

Tsioulou, O., Lampropoulos, A., Apostolidi, E. C., Karela, N., & Dritsos, S. E. (2013). Strengthening of bridge decks by adding new concrete layers. In Proceedings of the 4th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (pp. 0-0). Athens, Greece: NTUA.
Tsioulou, Ourania ; Lampropoulos, Andreas ; Apostolidi, E.C. ; Karela, N. ; Dritsos, Stephanos E. / Strengthening of bridge decks by adding new concrete layers. Proceedings of the 4th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. Athens, Greece : NTUA, 2013. pp. 0-0
@inproceedings{c7737fee1add4d9faf6d2f3dc1cf8206,
title = "Strengthening of bridge decks by adding new concrete layers",
abstract = "Deterioration or need to increase the load bearing capacity of bridge decks requiresthe strengthening of the decks by the addition of new elements. Placing reinforcedconcrete layers to strengthen or repair and strengthen concrete bridge decks on the compressionor the tension side of the element is a normal construction practice. However, there aremany unresolved issues regarding the capacity and the interface behaviour between the existingdeck and the new layer of the strengthened elements especially under seismic actions. Thenew deck created is a reinforced concrete composite member. In the present study an analyticalmodel has been developed for the estimation of the ultimate strength of such a compositedeck. The shear stress at the interface of the function results from experimental data and dependson the connecting means. The influence of cyclic loading on the behaviour of the interfacebetween the new concrete layer and the existing deck is considered. The model iscomplemented by a computer program in order to facilitate the relative calculations. Finally,an analytical procedure for the structural design and detailing of strengthened or repairedand strengthened bridge decks by the addition of new concrete is proposed. Moreover the inducedshear stresses and forces at the interface can be assessed to design the necessary connectionmeans, in order that there will be no failure of the contact interface, before theretrofitted deck reaches its flexural capacity.",
keywords = "Bridge deck, Concrete layer, Strengthening, Retrofit",
author = "Ourania Tsioulou and Andreas Lampropoulos and E.C. Apostolidi and N. Karela and Dritsos, {Stephanos E.}",
note = "{\circledC} 2013 The authors",
year = "2013",
month = "6",
day = "12",
language = "English",
pages = "0--0",
booktitle = "Proceedings of the 4th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering",
publisher = "NTUA",

}

Tsioulou, O, Lampropoulos, A, Apostolidi, EC, Karela, N & Dritsos, SE 2013, Strengthening of bridge decks by adding new concrete layers. in Proceedings of the 4th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. NTUA, Athens, Greece, pp. 0-0, Proceedings of the 4th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, 12/06/13.

Strengthening of bridge decks by adding new concrete layers. / Tsioulou, Ourania; Lampropoulos, Andreas; Apostolidi, E.C.; Karela, N.; Dritsos, Stephanos E.

Proceedings of the 4th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. Athens, Greece : NTUA, 2013. p. 0-0.

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBN

TY - GEN

T1 - Strengthening of bridge decks by adding new concrete layers

AU - Tsioulou, Ourania

AU - Lampropoulos, Andreas

AU - Apostolidi, E.C.

AU - Karela, N.

AU - Dritsos, Stephanos E.

N1 - © 2013 The authors

PY - 2013/6/12

Y1 - 2013/6/12

N2 - Deterioration or need to increase the load bearing capacity of bridge decks requiresthe strengthening of the decks by the addition of new elements. Placing reinforcedconcrete layers to strengthen or repair and strengthen concrete bridge decks on the compressionor the tension side of the element is a normal construction practice. However, there aremany unresolved issues regarding the capacity and the interface behaviour between the existingdeck and the new layer of the strengthened elements especially under seismic actions. Thenew deck created is a reinforced concrete composite member. In the present study an analyticalmodel has been developed for the estimation of the ultimate strength of such a compositedeck. The shear stress at the interface of the function results from experimental data and dependson the connecting means. The influence of cyclic loading on the behaviour of the interfacebetween the new concrete layer and the existing deck is considered. The model iscomplemented by a computer program in order to facilitate the relative calculations. Finally,an analytical procedure for the structural design and detailing of strengthened or repairedand strengthened bridge decks by the addition of new concrete is proposed. Moreover the inducedshear stresses and forces at the interface can be assessed to design the necessary connectionmeans, in order that there will be no failure of the contact interface, before theretrofitted deck reaches its flexural capacity.

AB - Deterioration or need to increase the load bearing capacity of bridge decks requiresthe strengthening of the decks by the addition of new elements. Placing reinforcedconcrete layers to strengthen or repair and strengthen concrete bridge decks on the compressionor the tension side of the element is a normal construction practice. However, there aremany unresolved issues regarding the capacity and the interface behaviour between the existingdeck and the new layer of the strengthened elements especially under seismic actions. Thenew deck created is a reinforced concrete composite member. In the present study an analyticalmodel has been developed for the estimation of the ultimate strength of such a compositedeck. The shear stress at the interface of the function results from experimental data and dependson the connecting means. The influence of cyclic loading on the behaviour of the interfacebetween the new concrete layer and the existing deck is considered. The model iscomplemented by a computer program in order to facilitate the relative calculations. Finally,an analytical procedure for the structural design and detailing of strengthened or repairedand strengthened bridge decks by the addition of new concrete is proposed. Moreover the inducedshear stresses and forces at the interface can be assessed to design the necessary connectionmeans, in order that there will be no failure of the contact interface, before theretrofitted deck reaches its flexural capacity.

KW - Bridge deck

KW - Concrete layer

KW - Strengthening

KW - Retrofit

M3 - Conference contribution with ISSN or ISBN

SP - 0

EP - 0

BT - Proceedings of the 4th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering

PB - NTUA

CY - Athens, Greece

ER -

Tsioulou O, Lampropoulos A, Apostolidi EC, Karela N, Dritsos SE. Strengthening of bridge decks by adding new concrete layers. In Proceedings of the 4th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. Athens, Greece: NTUA. 2013. p. 0-0