Preparing the reinforcement drawings is an important task in the rebar detailing process. Reinforcement drawings are execution drawings that represent the reinforcing bars (rebar) to be laid in the concrete. They are a means of communication between the designer and the contractor. Formwork drawings and the static calculation for the reinforced component are the basis for the creation of rebar drawings. The formwork drawings specify the shape of the component, while the static calculation provides information about the quantity and distribution of the rebar.
With rebar detailing, you can break the rebars down into separate positions according to their bending shape, length, steel grade and diameter. Moreover, the items are compiled in an overview (steel extract) stating the required number of pieces.
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The foundation of a building represents the structural-constructive connection between the building ground and the building. For example, using which foundation type depends on the ground conditions and the type of building. Moreover, the foundation of the building has the important task of safely conducting the building loads in the load-bearing ground. In addition to deep foundations, surface foundations are also very common. The most popular types for surface foundations are single and strip foundations or base plates with a lower and upper reinforcement layer. In combination with concrete outer walls, floor slabs are often designed as a white trough. With appropriate concrete properties and a professional joint design, this type of construction can be described as waterproof.
In many cases, reinforced concrete walls have special requirements. Namely, the tightness, exposure classes, concrete qualities, concrete surface requirements, and the degree of reinforcement all of which represent some essential features of concrete walls. Thus, when designing the building, the designer must pay attention to the wall thicknesses, reinforcement contents and an appropriate reinforcement arrangement. In order to ensure the smooth and cost-effective execution of reinforced concrete walls, the designer must ensure correct functional and structural reinforcement management in the rebar detailing of reinforced concrete walls.
Reinforced concrete ceilings transfer the vertical loads to the beams, walls and supports. In addition to good soundproofing properties, concrete ceilings have favorable fire protection traits. The rebar drawings show the routing in reinforcement concrete slabs with distinct upper and lower layer. Another important point is that, in the reinforcement management, attention must be paid to the structure and structural requirements from the static calculation. Furthermore, when choosing reinforcement (rebar or reinforcing steel mesh) and reinforcement arrangement, it is important to ensure that the laying on the construction site is as economical as possible. That is why high-quality floor slab plans are essential for saving costs and reducing time.
Reinforced concrete beams or joists are mostly used for lifting loads from the ceilings. With suitable arrangement of joists, the ceiling spans and the ceiling thicknesses can be significantly reduced. This allows the room’s heights to be increased and the building’s loads to be reduced. Generally, reinforced concrete beams are often subjected to high loads, which often result in high levels of reinforcement and complex reinforcement routing. As a result, the reinforcement of beams is shown in separate drawings. Presently, the demand for rebar drawings of beams is increasing. The statically and structurally appropriate arrangement of the reinforcement routing should avoid concentrated cracks and enable distribution over many narrow cracks. As a result, smaller rod diameters are more favorable for crack reduction. Furthermore, the limit of deflection and the highest possible ductility of the component are essential criteria that the designer has to consider when creating the rebar drawings.
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