THE PROBLEMS OF THE INCREASE IN LOADBEARING CAPACITY IN THE SEISMIC CONSTRUCTION

This article is devoted to the task of ensuring the operability of operated buildings that have been damaged by accidents, earthquakes and other causes. In article 2 important questions are allocated: need of definition the rational level of increase in the bearing capacity of damaged structures; need of development of a technique to prioritize buildings and their structures for recovery/reinforcement activities. The volume and nature of constructive anti-seismic measures and, consequently, the costs of these activities, are usually of an empirical nature and insufficiently substantiated by technical and economic studies. It is specified in article that the consequence of this is that the initial costs for seismic protection of buildings, as well as the cost of restoration in case of damage from an earthquake, fluctuate within very wide limits; or the demolition of the affected buildings without proper economic justification. In order to solve the above-mentioned problems, we propose in this article a calculation technique for determining the rational level of increasing the load-bearing capacity of structures, taking into account its residual service life and the period of unattended operation of damaged structures.