Reinforced Concrete Shear Wall Construction

Plywood is the conventional material used in wood timber shear walls but with advances in technology and modern building methods other prefabricated options have made it possible to inject shear assemblies into narrow walls that fall at either side of an opening.

Reinforced concrete shear wall construction.

Window and door headers also known as lintels can be subjected to significant bending moment and shear forces depending on several factors. Building a reinforced concrete block wall jlc online. Shear walls are typically light framed or braced wooden walls with shear panels reinforced concrete walls reinforced masonry walls or steel plates. Transverse shear walls have boundary elements at the facade end.

The reinforcement spacing varies from 50 mm to 250 mm for walls in the longitudinal and transverse direction respectively. Though it may also be made using plywood or masonry structure. The design and detailing requirements for special reinforced concrete shear walls have undergone significant changes from aci 318 11 to aci 318 14. A shear wall usually is designed as a braced moment resisting frame usually made of structural steel or the reinforced concrete wall.

Creating a wall opening in a reinforced concrete wall creates extra stress around that opening especially at the corners. Special reinforced concrete structural walls are walls that have been proportioned and detailed to meet special code requirements for resisting combinations of shear moment and axial force. Materials used for shear wall construction. This is the most common type of this walls.

Types of the shear wall. In reinforced concrete buildings the vertical elements are usually either moment resisting frames or structural walls sometimes referred to as shear walls. The changes are a result of the unsatisfactory performance of many shear walls in the chile earthquake of 2010 and the christchurch new zealand earthquake of 2011. The braced frame steel used as a shear wall.

This wall consists of the reinforcements and concrete slab. Those are the most common types of these walls. A structural reinforced concrete shear wall in a 5 story building provides lateral and gravity load resistance for the applied load as shown in the figure below. Concrete shear wall construction 3 shear wall buildings in romania whe report 78 have lightly reinforced walls with one layer of 2 mm diameter vertical bars and 8 mm horizontal bars.

Solid grouting and a hefty rebar schedule turn a unit block wall into a monolithic shear wall. A mason describes how he detailed a pair of large block walls to carry severe lateral loads. The wall thickness of rcc varies from the 150mm to 400mm. The steel reinforcement weight per unit volume of concrete for shear wall construction ranged between 41 and 88 kg m 3 for buildings in low seismic zones toronto 66 105 kg m 3 for medium seismic zones montreal and 64 220 kg m 3 for high seismic zones vancouver.

Figure 1 reinforced concrete shear wall geometry and loading.