Experimental and analytical study on seismic behavior of steel-concrete multienergy dissipation composite shear walls

Abstract

In this paper, a steel-concrete multi-energy dissipation composite shear wall, comprised of steel-reinforced concrete (SRC) columns, steel plate (SP) deep beams, a concrete wall and energy dissipation strips, is proposed. In order to study the multi-energy dissipation behavior and restorability after an earthquake, two stages of low cyclic loading tests were carried out on ten test specimens. In the fi rst stage, test on fi ve specimens with different number of SP deep beams was carried out, and the test lasted until the displacement drift reached 2%. In the second stage, thin SPs were welded to both sides of the fi ve specimens tested in the fi rst stage, and the same test was carried out on the repaired specimens (designated as new specimens). The load-bearing capacity, stiffness, ductility, hysteretic behavior and failure characteristics were analyzed for both stages and the results are discussed herein. Extrapolating from these results, strength calculation models and formulas are proposed herein and simulations using ABAQUS carried out; they show good agreement with the test results. The study demonstrates that SRC columns, SP deep beams, concrete wall and energy dissipation strips cooperate well and play an important role in energy dissipation. In addition, this study shows that the shear wall has good recoverability after an earthquake, and that the welding of thin SP's to repair a deformed wall is a practicable technique.

Seismic design and engineering practice of 10‐story shear wall structure with replaceable viscoelastic coupling beams

“…There have been many studies on the seismic performances of the shear walls with various detailing measurements. [ 3–5 ] However, as the first line of the seismic fortification, the local brittle shear failure in coupling beams is usually responsible for the large repair cost and the long downtime of the shear wall function. [ 6 ] To enhance the seismic performances of reinforced concrete coupling beams, researchers have proposed various strategies, such as the diagonal reinforcement detailing, the rhombic reinforcement detailing, the steel coupling beam, and the hybrid steel–concrete coupling beam.…”

Seismic analysis and connection optimization of the side column on modular prefabricated four‐sided connected composite shear wall

“…The increased height of high‐rise buildings necessitates a more stringent requirement for the seismic behavior of these structures against lateral forces. [ 1–3 ] Reinforced concrete shear wall systems that consist of rebar and concrete are efficient lateral force resisting systems that have been widely used in regions of high seismic activity for many years. [ 4–6 ] In these high‐rise buildings, the reinforced concrete shear walls of the lower stories can be subjected to large axial compressive forces and bending moments.…”

Mechanical Respond and Failure Mode of Large Size Honeycomb Sandwiched Composites under In-Plane Shear Load

“…Shear force is two forces of equal size and opposite direction in two parallel planes which are very close to each other [23]. The test and evaluation of the in-plane shear strength have great significance for the rational design of the sandwich composite structures, the assurance of their safety, and the expansion of their application scope [24,25,26].…”