Structural Behavior of Continuous Steel-Reactive Powder Concrete Composiate Beams Under Repeated Loads

 
 
 
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  • Abstract


    A study for the continuous composite steel-reactive powder concrete beams under repeated loads were executed experimentally and analytically. In the experimental part, six continuous composite sections were constructed as test beams. "Thedecks slab concretes"was connected tos steel I-beams by headed steel studs welded to the top flangesofsthes‘‘steel I-beams.T,he dimensions of the deck slab is (2200×250×80mm), while the type of I-beam is (IPE 140) with length of (2200mm). For the present work, the experimental work includes also examining the shear in the links by creating two models (push out) and tested to determine the properties and behavior of the studs. The behavior of the studs were conducted by"getting load-slip curves. In the part of the,oretical,‘‘.tested beams.was numericallysmodeled then analyzed using thesfinite element method.Thesnumerical models were carried out in three dimensionss bysthe software package (ANSYS 16.1). Verifi,cationsof thesnumericalsresultswas donesbyscompari,ngs thems with the experimentals results. “Thesresultssof thesfiniteselementsanalysissshowed good agreementswith the results ofsthe experimental tests. The maximumsandsminimum difference‘‘in ultimate loa,ds for beams‘‘ were (5.85% and 1.33%) respectively.  The results show that stiffenerssof beamssandsstrengthening with CFRP shall increase the ultimate load capacityand affects on‘‘mode of failure of theses beams.

     

     


  • Keywords


    Continuous composite member,"Reactive Powder Concrete",repeated loads and CFRP.

  • References


      [1] ACI 318M-8. (2008). ‘‘Building Code Requirements for Structural Concrete and Commentary’’, American Concrete Institute, Detroit, January.

      [2] Al-Thebhawi,H.W. (2005) ‘‘Nonlinear Finite Element Analysis of Composite Steel-Concrete Beams’’, Ph.D. Thesis, University of Technology, Iraq.

      [3] Ali, A.Y., and Hemzah, S.A. (2014) ‘‘Nonlinear Analysis for Behavior of RC Horizontally Curved Ring Beams with Openings and Strengthened by CFRP Laminates’’, Jordan Journal of Civil Engineering, Volume 8, No. 4.

      [4] ANSYSManual. (2015). Version (16.1), USA.

      [5] Chandra, S.R., and Elumalai, J.k. (214). ‘‘Study of Macro Mechanical Proprieties of Ultra High Strength Concrete Using Quartz Sand and Silica Fum’’, International Journal of Research in Engineeringand Technology, Issue: 9.

      [6] Collerpardi, S., Coppola, L., Troli, R., and Zaffaroni, P. (1999). ‘‘Influence of TheSuperplasticizer Type on The Compressive Strength of Reactive PowderConcrete for Precast Structure’’, Congress International BIBM'99 Venezia, PP. 25-3.

      [7] Dauriac, C. (1997). ‘‘Special Concrete May Give Steel StiffCompetition’’, The Seattle Daily Journal of Commerce [online], pp.15, May 9.

      [8] O’Neil,E.F., and Dowd, W.H. (1995). ‘‘Reactive Powder Concrete: A New Material for the Construction Industry’’, Third National Concrete and Masonry Engineering Conference, San Francisco, CA, pp. 43-5, June 15-17.

      [9] Warnock,R. (2005).‘‘Short-Term and Time-Dependent Flexural Behavior of Steel- Fiber Reinforced Reactive Powder Concrete Beams’’.PhD. Thesis, University of New SouthWales,pp.2.


 

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Article ID: 28007
 
DOI: 10.14419/ijet.v7i4.19.28007




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