This study first provides an overview of the development a novel tube anchor system for seismic strengthening or repair reinforced concrete (RC) shear walls with carbon fibre-reinforced polymer (CFRP) sheets. The new can significantly improve load transfer mechanism between CFRP and supporting RC structural elements, resulting in ductile behaviour strengthened increases lateral capacity ductili...

Damage to structural walls in the recent earthquakes in Chile (2010) and New Zealand (2011) demonstrated that modern reinforced concrete (RC) wall behaviour can be largely governed by out-of-plane displacements triggered by instability. Thin walls are the most vulnerable to this deformation mechanism, especially if they have a single layer of reinforcement. These wall types can be easily found ...

Metal Plate Shear Walls (MPSWs) represent an effective, practical and economical system for the seismic protection of existing RC framed buildings. They consist of one or more metallic thin plates, bolted or welded to a stiff steel frame, which are installed in the bays of RC framed structures. A case study of an existing RC residential 5-storey building, designed between the ‘60s and ‘70s of t...

Architectural limitations in many situations make it necessary for the RC shear walls to be extended in plan in different directions at a single location that makes them a 3D configuration. Analysis of such walls is very challenging. In this research about 450 cases of 3D shear walls are considered with different shapes and heights. L, T and H-shape walls are studied. They are nonlinearly analy...

Abstract Under strong earthquakes, reinforced concrete (RC) walls in high-rise buildings, particularly wall piers that form part of a coupled or core system, may experience axial tension–flexure loading. In this study, detailed finite element model was developed VecTor2 to provide an effective tool for the further investigation seismic behaviour RC subjected tension and cyclic lateral The verif...

In this paper, a new approach for nonlinear numerical modelling of the reinforced concrete shear walls with consideration of bar-concrete interaction and shear deformation is proposed. Bar and concrete stress-strain relations, the bar-concrete interaction, the shear stress-strain relation and, also, their cyclic behavior including the strength degradation and stiffness degradation are adopted a...

The influence of the infill masonry walls in the structural response of reinforced concrete (RC) structures when subjected to earthquakes is not considered in Nepal National Building code and Indian Standard code. Field observations carried out after the 25th April Gorkha earthquake in Nepal reinforce the importance of the infill walls, namely, through the significant increasing of the structur...

An evaluation procedure of the seismic performance overseas RC buildings with unreinforced masonry walls is proposed and applied to an urban residential building in Nepal. The structural out-of-plane as well in-plane directions considered proposal. Consequently, interest was reliably evaluated considering effects brick walls; namely, it confirmed that did not collapse direction under analytical...