A good balance of material costs and technological costs
is the reason for the success of the incremental launching
method in industrialized countries.1
Compared with the use
of ground falsework, bridge launching diminishes the cost
of labor with similar investments in equipment. Compared
with the use of self-launching erection machines, bridge
launching diminishes the investments in equipment with
similar labor costs. In both cases bridge launching diminishes
the technological costs, and even if the launch
stresses increase the cost of prestressing, the balance is
positive and the solution is financially effective.