Cyclic behavior of thin RC Peruvian shear walls: Full-scale experimental investigation and numerical simulation

Abstract

The experimental results of seven full-scale thin RC shear walls subjected to cycling loading are presented. The objective of these experiments is to evaluate the use of electro-welded wire mesh as the main reinforcement instead of a conventional reinforcement. Six walls are equipped with the electro-welded wire mesh, which is made of a non-ductile material, and one wall is reinforced with conventional bars, which are made of a ductile material. A single layer of main reinforcement is used in both directions. The edges of all walls are reinforced with conventional bars. These walls are widely used in low-and mid-rise buildings in central Peru, especially in Lima City. The structural behaviors are examined in terms of strength, stiffness, dissipated energy, and equivalent viscous damping. Finally, the "Three-parameter Park hysteretic model" is calibrated in order to reproduce the behaviors of the thin walls reinforced with the conventional reinforcement and electro welded-wire mesh. The parameters are applied to the results of the other walls reinforced by the electro-welded wire mesh. The results of numerical simulations are in good agreement with experimental results.

Assessment of Seismic Performance of High-Rise Thin RC Wall Buildings in Lima, Peru Using Fragility Functions

“…The three-parametric model proposed by Park et al [7], based on a trilinear curve, was adopted. The four parameters α, β 1 , β 2 , and γwere estimated in the previous study [3].…”

“…This study assesses the seismic performance of thin RC wall high-rise buildings in Lima, Peru, using fragility functions. We evaluated the hysteretic response of thin RC walls in a previous study [3]. Multiple degree-offreedom and macro models representing the overall behavior of RC elements were used to construct numerical model of high-rise buildings.…”

Shaking table test of reinforced concrete coupled shear walls with single layer of web reinforcement and inclined steel bars

“…Those research achievements provide reliable test data for the application of this shear wall in multi-story building structures which meet the basic seismic demand as the Code for Seismic design of Building (GB50011, 2010) required. The thin shear walls reinforced with single layer of deformed bars and welded-wire mesh are also used for one-totwo stories housing in several Latin American countries (Carrillo et al, 2015;Quiroz et al, 2013). Focusing on the function of inclined steel bars in seismic performance for shear walls (Salonikios et al, 1999(Salonikios et al, , 2000(Salonikios et al, , 2007, some results about static testing of single layer of web reinforcement and inclined steel bars (Zhang et al, 2016a(Zhang et al, , 2016d(Zhang et al, , 2017 have indicated that inclined steel bars can improve the hysteretic response of shear walls with single layer of web reinforcement.…”

Experimental study on seismic behavior of steel tube confined high-strength concrete shear walls

“…In 2013, Nie et al [15] studied the seismic behavior of high-strength concrete filled double-steel-plate composite walls under the large axial compressive force and reversed cyclic lateral load, and analyzed the stiffness, strength degradations, and deformation characteristics. In 2013, Quiroz et al [16] studied the cyclic behavior of thin RC Peruvian shear walls through full-scale experimental investigation and numerical simulation.…”