Experimental Study on Embedded Steel Plate Composite Coupling Beams

Lam, W. Y.; Su, R.K.L.; Pam, H. J.

doi:10.1061/(asce)0733-9445(2005)131:8(1294)

Cited by 55 publications

(14 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results of the experimental study showed that the composite concrete encased steel shape had an excellent strength and ductility if it restrained in the core of concrete around the steel profile, particularly in the flexural plastic hinge areas. Otherwise, the significant horizontal cracks still occur in the interface of concrete and steel flange and it is known as shear splitting failure due to cyclic loading ( [10,11], [13][14][15]…”

Section: Literature Reviewmentioning

confidence: 99%

Inelastic behavior of reinforced concrete cantilever beam with embedded steel truss in flexural plastic hinge under cyclic loading

2019

View full text Add to dashboard Cite

Structures are expected to have ductile behavior under major earthquakes. One requirement to achieve this ductile behavior is when the structures have no shear failures in their elements. This paper discusses a new method by using the embedded steel truss in the flexural plastic hinges of beam to avoid shear failure. As already known that the shear strength provided by the concrete will be decreased when the ductility of flexural plastic hinges develop in a member. Therefore, a conservative procedure by ignoring the role of concrete in flexural plastic hinges in resisting the shear demand is adopted by some codes. This will increase the demand for shear reinforcement provided by the stirrup or transverse reinforcement in the plastic hinge; yet it still does not ensure that the shear failure does not come to happen. From the laboratory test results under cyclic loading in this study, it can be noted that the beam with embedded steel truss in the plastic hinge has better hysteretic behavior than the one without the embedded steel truss. The evaluation of test result is also shown the strength of the beam with the embedded steel truss in the plastic hinge is not reduced with an increase in the amplitude of the drift of 1.4 to 3.5. Besides, the strength of the beam without embedded steel truss in the plastic hinge is reduced with an increase in the amplitude of the drift after reaching 2.5.

show abstract

Section: Literature Reviewmentioning

confidence: 99%

Inelastic behavior of reinforced concrete cantilever beam with embedded steel truss in flexural plastic hinge under cyclic loading

2019

View full text Add to dashboard Cite

show abstract

“…The required anchorage length ( L a ) should be determined in conjunction with the shear stud arrangement [ 3 , 4 ] as

where M p and V p are the ultimate moment and shear force, respectively, transferred to the steel plate and w is the uniformly distributed vertical bearing stress. The value of L a was varied in each group of models within a practical range that satisfied both of the following criteria concerning the geometry of the plate anchor: 0.25 ≤ L a / l ≤ 1 and 0.5 ≤ L a / h ≤ 2.…”

Section: Nonlinear Finite Element Modellingmentioning

confidence: 99%

“…The theoretical ultimate shear stresses ( v u *) were estimated as the lesser of the moment and the shear capacities of the beam, where the moment capacity was calculated from section analysis assuming full plate/RC composite action and the shear capacity was calculated in accordance with the British Standards [ 12 , 13 ] with the safety factors taken as unity. Details of the method have been presented in [ 3 , 4 ], and the reinforcement details together with the v u *s of the prototype PRC coupling beams are listed in Table 1 . The shear stud arrangements on the steel plates are depicted in Figure 2 .…”

Section: Nonlinear Finite Element Modellingmentioning

confidence: 99%

“…By considering the transverse and longitudinal slips of the shear studs at the span of the beams, Lam et al [ 3 ] worked out a design formula for determining the number of studs required. By evaluating the bearing stress distribution at the plate anchor, Su et al [ 4 ] developed a design model for the anchor of steel plates in wall piers.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Behaviour of Plate Anchorage in Plate‐Reinforced Composite Coupling Beams

Lam

et al. 2013

The Scientific World Journal

View full text Add to dashboard Cite

As a new alternative design, plate-reinforced composite (PRC) coupling beam achieves enhanced strength and ductility by embedding a vertical steel plate into a conventionally reinforced concrete (RC) coupling beam. Based on a nonlinear finite element model developed in the authors' previous study, a parametric study presented in this paper has been carried out to investigate the influence of several key parameters on the overall performance of PRC coupling beams. The effects of steel plate geometry, span-to-depth ratio of beams, and steel reinforcement ratios at beam spans and in wall regions are quantified. It is found that the anchorage length of the steel plate is primarily controlled by the span-to-depth ratio of the beam. Based on the numerical results, a design curve is proposed for determining the anchorage length of the steel plate. The load-carrying capacity of short PRC coupling beams with high steel ratio is found to be controlled by the steel ratio of wall piers. The maximum shear stress of PRC coupling beams should be limited to 15 MPa.

show abstract

“…For example, specially detailed diagonal reinforcement, developed by Paulay et al [1], has shown to be an effective way to enhance the strength and ductility of the coupling beam. In addition to the conventional RC coupling beam, scholars have developed a variety of different types of coupling beams, such as steel coupling beam [14], composite coupling beam [15][16][17][18][19][20][21][22][23], double coupling beam [24], replaceable coupling beam [25,26], and assembled coupling beam [27].…”

Section: Introductionmentioning

confidence: 99%

Seismic Performance of Reinforced Concrete Coupled Walls with Segmental Coupling Beams

et al. 2019

Advances in Civil Engineering

View full text Add to dashboard Cite

A novel reinforced concrete (RC) segmental coupling beam (SCB), which mainly comprises the energy dissipating (ED) segment and load bearing (LB) segment, is proposed in this paper. In order to examine its applicability in engineering practice, one scaled RC coupled wall specimen with the proposed SCBs was constructed and experimentally investigated under cyclic loading. The results show that both cracking and yielding occurred much earlier on the ED segments of the SCBs compared to the LB segments. In addition, a lot more cracks distributed densely on the ED segments were observed at the end of the test. It demonstrates that the ED segments play a main role in the energy dissipation, while the LB segments are always reliably capable of carrying the gravity load transferred from the floor beams. Finally, the finite element analysis model of the RC coupled wall is established and validated by comparing the analysis results with the experimental ones. Utilizing the proposed analysis model, parametric analyses are conducted to investigate the influence of a variety of design parameters, including the axial compressive ratio of the wall pier, concrete strength, and especially sectional height of the SCB, on seismic performance of the coupled wall. It shows that as the sectional height of the ED segment increases, the energy dissipating capacity of the coupled wall may improve while the ability of supporting the gravity load is lowered.

show abstract

Experimental Study on Embedded Steel Plate Composite Coupling Beams

Cited by 55 publications

References 8 publications

Inelastic behavior of reinforced concrete cantilever beam with embedded steel truss in flexural plastic hinge under cyclic loading

Inelastic behavior of reinforced concrete cantilever beam with embedded steel truss in flexural plastic hinge under cyclic loading

Behaviour of Plate Anchorage in Plate‐Reinforced Composite Coupling Beams

Seismic Performance of Reinforced Concrete Coupled Walls with Segmental Coupling Beams

Contact Info

Product

Resources

About