ENSURING LONG-TERM STORAGE OF METAL STRUCTURES WHEN USING SECONDARY ANTI-CORROSION PROTECTION

Abstract

Research is aimed at improving the quality of secondary protection measures in 
preparation for the production of sheet metal structures. The problem of maintaining quality with 
guaranteed indicators of durability is taken into account, taking into account the level of corrosion 
hazard in a coastal climate. The principles of the process approach are used to implement the tasks 
of managing the service life in corrosive environments. The principle of reliability according to the 
level of corrosion hazard is provided, which is described by the successive stages of assessing the 
survivability of sheet metal structures based on the DMAIC strategy (define, measure, analyze, im-
prove,  control):  determination,  measurement,  analysis,  improvement  and  control  of  primary  and 
secondary corrosion protection measures. Corrosion protection measures have been developed ac-
cording to the criterion of corrosion hazard, which ensures compliance with the reliability require-
ments of building metal structures based on calculated indicators. The tasks of managing technolog-
ical  readiness  for  a  specified  period  preceding  the  construction  of  a  building  object  have  been 
solved.  A  procedure  has  been  developed  for  servicing  sheet  metal  according  to the  actual  state, 
which is based on a process approach to resource management by building a system of accounting 
and  functional  control,  risk  analysis  and  technological  safety  regulation.  The  implementation  of 
these principles at the object level is aimed at improving the means and methods of anticorrosive 
protection,  extending  the  resource  taking  into  account  survivability  indicators  and  substantiating 
measures of the reliability assurance program (PON). Based on the developed principle, the results 
of field and laboratory studies are generalized. These studies are aimed at substantiating the primary 
and secondary protection of sheet metal structures at a given level of corrosion hazard, organiza-
tional measures of PON are proposed. Activities include the assessment of the integral characteris-
tics of constructive fitness, technological rationality and risk analysis of signs of corrosion hazard of 
objects.