ADVANCED RETROFITTING TECHNIQUES FOR REINFORCED CONCRETE STRUCTURES: A STATE OF AN ART TECHNICAL REVIEW

Abstract

Any technology or material has its limitations and new
technologies have been invented and utilized over the ages to
meet the new requirements. A large number of seismically prone
reinforced concrete structures are not able to withstand
earthquakes in accordance with the current provisions for coal.
Moreover, the seismic Due to a design deficiency, construction
deficiency, additional loads, and behavior of existing buildings is
affected Additional demand for performance, etc. Recent
earthquakes have clearly shown an urgent need for improvement
and strengthen those structures that are seismically deficient.
The upgrade is one of the best options for making an existing
one inadequate construction safe from future likely earthquakes
or other environmental forces. The refurbishment reduces
Vulnerability of structural damage in the near future of seismic
activity. It aims to consolidate a structure Comply with the
requirements of current seismic design codes. A considerable
amount of research has been carried out develop various
enhancement and rehabilitation techniques to improve seismic
performance in recent years of structures. Of structures. This
article aims to provide an overview of various innovative and
cost-effective techniques Retrofit for reinforcement of damaged
structures. Seismic construction protection is a concept based on
requirements aimed at improving the performance of any
structure Future earthquakes. Future earthquakes. Earthquakes
of various magnitudes have taken place in India recently,
causing extensive Life and property damage. Some materials and
techniques recently developed can play an important role in the
structural repairs. Seismic reinforcement, whether damaged or
undamaged, of existing buildings. The main concern of a
structural engineer must restore the structures as fast as possible
successfully. Choice of the right materials, the techniques and
procedures for the repair of a certain structure were a major
challenge. Innovative Structural repair techniques have
numerous advantages over conventional techniques. Some
guidelines for the present paper discussed the selection of
materials for repair work, e.g. steel, reinforced fiber polymers.
The choice of materials and techniques to use depends on many
aspects from various perspectives prospectivei.e. Requirement
and available financial resources, applicability and
appropriateness of materials Repair of structures damaged. Use
of standard and innovative repair materials, suitable technology,
manufacturing, Conservation and preservation according to
project objectives and Building renovation can include a range of
different technical considerations such as fire safety,
geotechnical safety Weathering and water infiltration, hazards
and remedies, structural performance in earthquakes and wind
loads.