Behaviour of Plate Anchorage in Plate‐Reinforced Composite Coupling Beams

Abstract

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.

Cyclic behavior and numerical study of PRC coupling beam with steel truss floor slab

“…However, due to the ease of shear slip between the steel plate and concrete, these beams suffered early-stage damage. In response, Lam [12] proposed the classic steel-concrete composite beam with studs. The arrangement of studs effectively prevented slip between the steel plate and the concrete, significantly enhancing the anchorage of these materials and consequently improving the loadbearing capacity of the beam specimens.…”

Analytical and Experimental Study on Composite Deep beams with Rolled section reinforcement

“…A lot of research has been carried out on deep beams to study its structural behavior both in experimental and analytical methods. How the reinforcement quantity varies with introducing high strength reinforcement in deep beams, for variable shear span to depth ratio was explained [1] ,to predict the deep beam behavior various modes of failure and propagation of cracks were examined [2] , the impact of vertical, horizontal web reinforcement of deep beam was efficient in shear capacity and perpendicular reinforcement improve the ultimate shear strength was discussed [3], comparison of deep coupling beams plate anchorage in the wall region with diagonally reinforced coupling beams was made and anchorage plate system achieve more capacity without causing the congestion of steel [4]. All these Studies were carried out on deep beams by fluctuating the parameters like shear span to depth ratio, change in the reinforcement proportion, length to depth ratio etc.…”