Hybrid Concrete Walls

This design guide is intended to provide the structural engineer with essential guidance for the design of structures that combine precast and in situ concrete in a hybrid concrete structure.

Hybrid concrete walls.

The accuracy speed and high quality finish of precast components can be combined with the economy and flexibility of cast in situ concrete. Hybrid precast walls utilize a combination of mild e g grade 60 steel and high strength unbon ded post tensioning pt steel for flexural resistance across horizontal joints. The basic concept is to attach a reinforced concrete masonry panel to a structural steel frame such that some combination of gravity forces story shears and overturning. Hybrid masonry is a structural system that utilizes reinforced masonry infill walls with a framed structure.

Hybrid precast concrete walls use a combination of mild steel bars and high strength unbonded posttensioning steel strands for lateral resistance across horizontal joints. Hybrid concrete wall panels are increasingly being proposed on projects throughout the uk and are often known as. Hybrid masonry is a structural system that utilizes reinforced masonry walls with a framed structure. Hybrid concrete construction is a method of construction which integrates precast concrete and cast in situ concrete to make best advantage of their different inherent qualities.

While the frame can be constructed of reinforced concrete or structural steel the discussion here will include steel frames in combination with reinforced concrete masonry walls. Code ap proval of the hybrid precast concrete wall system as a special reinforced concrete shear wall for moderate and high. The mild steel reinforcement is designed to yield in tension and. In the hybrid precast wall system in vestigated in this paper most of the mild steel reinforcement is placed near the two ends of the wall see fig.

The proposed design guidelines support the u s. Typically hybrid masonry is implemented with concrete masonry panels used to brace steel frame structures. This paper presents an ongoing research project on the behavior and design of hybrid precast concrete wall structures for use in seismic regions. 1 b similar to the placement of the mild steel reinforcement near the top and bottom of the beams in fig.

As compared with monolithic cast in place reinforced concrete walls with. Hybrid masonry is a new type of building system that uses engineered reinforced masonry to brace frame structures. It introduces the options available for hybrid concrete structures and goes on to explain the key considerations in the design of this type of structure.