Axial Compressive Behavior of Steel-Damping-Concrete Composite Wall

Abstract

This paper presents a novel steel-damping-concrete (SDC) composite wall as a vertical element for high-rise buildings and nuclear power plants etc. In an SDC composite wall, a damping layer is sandwiched between the concrete core and steel plates to reduce structural response based on its damping characteristics under axial and seismic loads. To ensure that an SDC composite wall exhibits a comparable compressive resistance as a steel-concrete-steel (SCS) composite wall, two types of reinforcing approaches including steel sheets and sleeves are utilized to enhance the weakness of the damping layer on the concrete core. The compressive performance of the reinforced SDC composite wall is numerically and analytically investigated using finite element (FE) simulations by ABAQUS. The influences of several key parameters including the type of reinforcement, the thickness of the damping layer, steel plates, and concrete core, the binding bar spacing as well as the diameter of steel sheets on the compressive performance of the composite walls are investigated through numerical analyses. The results show that while only embedding the rubber interlayer in the composite wall leads to the decrease of compressive resistance of the composite wall, the steel sheets and sleeves can provide the confinement effect on concrete core efficiently and improve the compressive resistance and ductility of walls. Based on the available methods in the current design codes such as Eurocode 4, AISC-360, a theoretical model is developed to predict the ultimate compressive resistance of SDC walls. The predictions show a reasonable correlation when compared with the numerical results.

Numerical Study on Hysteretic Behaviour of Horizontal-Connection and Energy-Dissipation Structures Developed for Prefabricated Shear Walls

“…Finally, the full section of the functional bolts come into plastic and the shear stiffness lifting plate locally yields, as shown in Figure 8e,f.The top and bottom boundaries utilized thick steel plates to simulate the connection to shear walls. When the HES is employed in steel composite shear wall system [42] and steel-dampingconcrete composite wall sytems [43] the high strength bolt connection is available. HES1 200 200 10 200 330 16 11 8 3 -----HES2 200 200 10 200 330 16 11 8 3 -50 100 --HES3 200 200 12 200 330 16 11 8 3 -50 100 --HES4 200 200 10 200 330 16 10 8 2 -----HES5 200 200 10 200 330 16 13 8 5 -----HES6 200 200 10 200 330 16 11 8 3 ---50 50 HES7 200 200 10 200 330 16 11 8 3…”

“…The top and bottom boundaries utilized thick steel plates to simulate the connection to shear walls. When the HES is employed in steel composite shear wall system [42] and steel-damping-concrete composite wall sytems [43] the high strength bolt connection is available. HES1 200 200 10 200 330 16 11 8 3 -----HES2 200 200 10 200 330 16 11 8 3 -50 100 --HES3 200 200 12 200 330 16 11 8 3 -50 100 --HES4 200 200 10 200 330 16 10 8 2 -----HES5 200 200 10 200 330 16 13 8 5 -----HES6 200 200 10 200 330 16 11 8 3 ---50 50 HES7 200 200 10 200 330 16 11 8 3 The double-step force-displacement curve of HES1 is depicted in Figure 9a and the typical double-step working mechanism of the HESs is shown in Figure 9b.…”

Optimal Design of Seismic Resistant RC Columns

“…The method refers to the simultaneous bending and axial capacity of a section, namely to the ultimate combinations of bending moment and axial force [1,2,[4][5][6]8,10,13,28,29,32,[35][36][37][38][39][40][41][42][43]. Those combinations define the bending moment-axial force interaction curve.…”

Numerical Analysis of Low-Velocity Impact Behaviour of Protective Concrete-Filled Steel Plates Composite Wall

“…To improve the impact performance of the CBSP wall, Zhu et al [14] proposed a new type of anti-impact steel-damping-concrete (SDC) wall structure with a rubber layer embedded between the steel plate and the core concrete and studied its compressive behaviour. Moreover, rubber material is commonly used as a cushioning material.…”