Modeling and experimental testing of a smart composite bridge

K. Chandrashekhara, Antonio Nanni, Steve E. Watkins, Prakash Kumar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

An all composite bridge with integral sensor network has been designed and built at the University of Missouri-Rolla (UMR). An extensive experimental study and finite element analysis were carried out to obtain and compare properties (stiffness, strength, failure modes) of 76 mm (3 in) square hollow pultruded Fiber Reinforced Polymer (FRP) tubes and their assemblies. Tube assemblies were used in the fabrication of bridge deck designed for H-20 truckloads as specified by the American Association of State Highway and Transportation Officials (AASHTO). The bridge is 9.14 m (30 ft) long and is 2.74 m (9 ft) wide. All the coupons were tested under three- or four-point bending. Experimental results show excellent linear elastic behavior up to failure and are in good agreement with finite element solutions. A quarter portion of the full-sized bridge deck was then tested for its structural performance under design and fatigue loading and also for ultimate load capacity to evaluate the bridge response. The characteristics of the full-size bridge deck were determined by analyzing the performed tests. The test sample showed almost no reduction in stiffness or strength after 2 million cycles of fatigue loading in excess of the design load. The bridge was installed at the UMR campus in July 2000. The bridge is equipped with fiber optic sensors, and the response of the bridge will be remotely monitored.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsS. Mohan, B. Dattaguru, S. Gopalakrishnan
Pages741-752
Number of pages12
Volume5062
Edition2
StatePublished - 2002
Externally publishedYes
EventSmart Materials, Structures, and Systems - Bangalore, India
Duration: Dec 12 2002Dec 14 2002

Other

OtherSmart Materials, Structures, and Systems
CountryIndia
CityBangalore
Period12/12/0212/14/02

Fingerprint

Composite bridges
Bridge decks
composite materials
Testing
Stiffness
Fatigue of materials
Fiber optic sensors
assemblies
stiffness
Failure modes
Sensor networks
tubes
Finite element method
Fabrication
sensors
failure modes
Fibers
Polymers
fiber optics
hollow

Keywords

  • Bridge deck
  • Composite materials
  • Fiber optic sensors
  • Fiber-reinforced polymer (FRP)
  • Pultrusion

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Chandrashekhara, K., Nanni, A., Watkins, S. E., & Kumar, P. (2002). Modeling and experimental testing of a smart composite bridge. In S. Mohan, B. Dattaguru, & S. Gopalakrishnan (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (2 ed., Vol. 5062, pp. 741-752)

Modeling and experimental testing of a smart composite bridge. / Chandrashekhara, K.; Nanni, Antonio; Watkins, Steve E.; Kumar, Prakash.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / S. Mohan; B. Dattaguru; S. Gopalakrishnan. Vol. 5062 2. ed. 2002. p. 741-752.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chandrashekhara, K, Nanni, A, Watkins, SE & Kumar, P 2002, Modeling and experimental testing of a smart composite bridge. in S Mohan, B Dattaguru & S Gopalakrishnan (eds), Proceedings of SPIE - The International Society for Optical Engineering. 2 edn, vol. 5062, pp. 741-752, Smart Materials, Structures, and Systems, Bangalore, India, 12/12/02.
Chandrashekhara K, Nanni A, Watkins SE, Kumar P. Modeling and experimental testing of a smart composite bridge. In Mohan S, Dattaguru B, Gopalakrishnan S, editors, Proceedings of SPIE - The International Society for Optical Engineering. 2 ed. Vol. 5062. 2002. p. 741-752
Chandrashekhara, K. ; Nanni, Antonio ; Watkins, Steve E. ; Kumar, Prakash. / Modeling and experimental testing of a smart composite bridge. Proceedings of SPIE - The International Society for Optical Engineering. editor / S. Mohan ; B. Dattaguru ; S. Gopalakrishnan. Vol. 5062 2. ed. 2002. pp. 741-752
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