Experimental Study on Embedded Steel Plate Composite Coupling Beams

Released on by Wai-Yin Lam
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  • Experimental Study on Embedded Steel Plate Composite Coupling Beams Book Detail

  • Author : Wai-Yin Lam
  • Release Date : 2017-01-26
  • Publisher : Open Dissertation Press
  • Genre :
  • Pages :
  • ISBN 13 : 9781361192498
  • File Size : 11,11 MB
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Experimental Study on Embedded Steel Plate Composite Coupling Beams by Wai-Yin Lam PDF Summary

Book Description: This dissertation, "Experimental Study on Embedded Steel Plate Composite Coupling Beams" by Wai-yin, Lam, 林慧賢, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled Experimental Study on Embedded Steel Plate Composite Coupling Beams Submitted by Lam Wai Yin for the degree of Master of Philosophy at The University of Hong Kong in April 2003 With the aim of providing the construction industry with a feasible alternative coupling beam design that improves the structural performance of coupled shear wall structures under wind and seismic loading, an experimental study has been conducted to study the effectiveness of embedded steel plate composite coupling beams, a recent design innovation. The design makes use of the composite action between structural steel and reinforced concrete by embedding a steel plate vertically into a conventionally reinforced concrete section containing longitudinal flexural and transverse shear reinforcement. The composite action is enhanced by shear studs welded onto the steel plate along the longitudinal direction close to the flexural reinforcement. Five coupling beam specimens with identical dimensions and a span/depth ratio of 2.5 were tested under reversed cyclic loading conditions. Two of the coupling beams were conventionally reinforced while the other three were embedded steel plate composite coupling beams, each with a vertically embedded steel plate spanning across the full span and being anchored in the wall piers. In order to investigate the effects of shear studs on the overall performance of the composite coupling beams, one of the composite coupling beams was embedded with a plain plate. The test results demonstrated the superior behaviour of embedded steel plate composite coupling beams over conventionally reinforced concrete coupling beams in respect of their strength, ductility, and energy dissipation capacities under elastic loading and inelastic deformations. A maximum average shear stress close to 10MPa and a maximum rotation ductility factor above 9 were respectively recorded in two embedded steel plate composite coupling beam specimens. It was also found that although embedding a steel plate in an RC coupling beam could increase both the initial stiffness and the loading capacity, shear studs must be provided to ensure the ductile performance of the composite coupling beams. Simple theories have been developed for calculating the beam capacity, the shares of loading between the steel plate and the reinforced concrete in an embedded steel plate composite coupling beam, the beam moment-curvature relationship, and the initial beam stiffness. These theories enabled experimental results to be predicted with a high degree of accuracy. Pullout tests were also carried out to study the respective contributions to the composite action of the shear studs and the natural bonding between an embedded steel plate and its surrounding reinforced concrete. Based on the experimental results and the reviews of previous studies on shear studs and reinforced concrete beams with bolted side steel plates, a design procedure of the shear stud arrangement in the beam span has been proposed. DOI: 10.5353/th_b2664335 Subjects: Plate girders - Testing Concrete beams - Testing Concrete beams - Design and construction

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Plate-Reinforced Composite Coupling Beams

Plate-Reinforced Composite Coupling Beams

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This dissertation, "Plate-reinforced Composite Coupling Beams: Experimental and Numerical Studies" by Wai-yin, Lam, 林慧賢, was obtained from The University