Optimum Design Configuration of Dapped-End Beam Under Dynamic Loading Using TOPSIS Method

Esraa Hijah, Omar Najm, Hilal El-Hassan, Zubair I. Syed

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

Abstract

Dapped-end beams (DEBs), commonly known as half joint beams, are broadly used in bridge constructions. The reduction of the depth at the supports of the beam makes it a critical shear area and vulnerable to damage. Being used primarily on bridges, dapped-end beams are susceptible to dynamic impact loading, which is more brutal than static load cases. Various reinforcement configurations combined with different concrete properties were used to withstand the stresses generated by such loadings and mitigate their effect on the critical shear location. To reduce the extensive work and use of resources required to investigate such problems, numerical investigations were conducted on LS-DYNA software to anticipate the enhancement in the shear capacity as a function of compressive strength, main reinforcement, and shear hanger reinforcement configurations. Multi-criteria decision-making using TOPSIS analysis was conducted to choose the best scenario configuration that maximizes the beam’s performance under dynamic impact loading. TOPSIS analysis was based on the deflection of the beam, shear strength of the concrete, and stress and strain of main and hanger reinforcement.

Original languageEnglish
Title of host publicationProceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering, MCM 2022
EditorsHuihe Qiu, Yuwen Zhang, Marcello Iasiello
PublisherAvestia Publishing
ISBN (Print)9781990800108
DOIs
Publication statusPublished - 2022
Event8th World Congress on Mechanical, Chemical, and Material Engineering, MCM 2022 - Prague, Czech Republic
Duration: Jul 31 2022Aug 2 2022

Publication series

NameProceedings of the World Congress on Mechanical, Chemical, and Material Engineering
ISSN (Electronic)2369-8136

Conference

Conference8th World Congress on Mechanical, Chemical, and Material Engineering, MCM 2022
Country/TerritoryCzech Republic
CityPrague
Period7/31/228/2/22

Keywords

  • Critical Shear Failure
  • Dapped-End Beam
  • Impact Loading
  • Performance Index
  • TOPSIS

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Chemical Engineering(all)

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