In the cases where the new shear wall will be perpendicular or aligned with the existing one and the starter bars are bound either to cause problems in further excavations or to be damaged by handling machines, the special technique described below is being used:
(a) The starter bars are shaped like a hair pin, their legs are temporarily bent and they are encased in a standardized steel or in an improvised (e.g. made out of polystyrene) thin box,
(b) The thin box is nailed to the formwork. Then follows the positioning of the first shear wall reinforcement and finally comes the concrete casting,
(c) After the formworks removal, the starter bars are once again straightened. If the encasing box had been an improvised construction, it is removed.
(d) The second shear wall is constructed.