Objective and Benefits of Dowel Bar
Dowel Bar
Dowel bars stand for quick metallic bars that are commonly applied in concrete pavements to preserve a mechanical connection amongst slabs without preserving the horizontal joint motion restricted. The bars are furnished amongst concrete slabs to transmit the masses some of the slabs and facilitate any horizontal motion because of expansion.
They make the weight transmission higher via way of means of facilitating the depart slab to presume a number of the weight previous to the weight is implementing over it practically. As a result, the joint deflection and strain are minimized withinside the technique and depart slabs.
Dowel bars are organized on the transverse joints of concrete pavement and are concerned withinside the partial transmission of wheel load from one slab to its adjacent slab.
Loads bars are improved from an RCC member with the purpose that withinside the destiny while the RCC member is enlarged, the reinforcement of the extension is hooked up with those bars.
The duration of dowel bars in compression stays forty five instances bar dia and in anxiety it's far retained as fifty two instances the bar dia.
The objective of Dowel Bar
- To deliver the load from one slab to its adjoining slab with the purpose of moving two successive slabs simultaneously and minimizing the impact loading produced by the slabs with their independent movement.
- To minimize joint faulting and corner cracking.
- To improve the functioning of pavement joints.
Benefits of Dowel Bars
- Minimizes deflection and stresses.
- It raised the load-bearing strength of slabs.
- It improves the initial pavement life.
The effective depth is calculated from the face of the member to the centre of area of main reinforcement. Therefore, Effective cover = Clear cover + (Dia of Stirrups/links) + (Dia of main reinforcement bars) + 0.5*(distance among bars).