How to prevent the appearance of bends of jack rods
Obviously, in order to avoid the bending of the jack rods, the design of the formwork on the jack rods should be performed so that only vertical loads are transmitted to the jack of the jack, and horizontal loads and moments were perceived by the formwork and walls of the structure.
Otherwise, the number of jack rods and their section should be taken according to their calculation for strength and bend from vertical and horizontal loads.
To avoid the appearance of uneven temperature deformations of the formwork from its heating by the sun, the metal parts of the formwork need to be painted white. With a large length of the structure, it must be cut by temperature seams into blocks.