Services

Structural Rehabilitation and Restoration

RA is a structural engineering firm specializing in all facets of structural, waterproofing and building envelope repair, as well as rehabilitation and renovation related engineering and consulting services for numerous clients all over India.

RA performs a wide variety of structural related services across various market sectors including commercial, institutional, educational, entertainment and government. The majority of our projects are with repeat clients, attributable to our success in cultivating long term relationship with attentive service and providing creative and cost effective solutions to engineering problems.

RA typically provides service to building owners, portfolio managers, property managers, architects and contractors relative to distressed structures and structural components. RA works closely with our clients on every phase of the evaluation and repair process in order to provide our clients with a single consulting service. RA boasts of expertise in repair and strengthening of joints, steel jacketing and/or external steel elements and fiber reinforced polymer (FRP) composite applications

Services

Structural and services consultancy

Green and Sustainable Buildings

Project value engineering

Project & Construction Management Consultancy

Specialization

Repair Techniques

  • Micro concrete jacketing
  • Designed concrete
  • Steel plate bonding
  • Glass and carbon fiber wrapping
  • Carbon laminates with post tensioning
  • Hand and spray applied polymer mortars
  • Corrosion mitigation
  • Protective coating
  • Seismic retrofitting techniques
  • Foundation strengthening
  • Polyurea application
  • Beam strengthening
  • Injection grouting system using polyurea, epoxy, resins etc.

Our Expertise

  • Strengthening of RCC structures.
  • strengthening of columns for enhancing load carrying capacities strengthening beams enhanced flexure and shear strengths.
  • Strengthening of slabs, retaining walls etc.
  • Seismic retrofitting of RCC structures
  • Repairs and restoration of RCC structures
  • Reinforcement of beams
  • Improvement of impact resistance and blast resistance properties
  • Strengthening of bridge piers, jetty piles, tunnels, chimneys etc. for earthquake resistance

FRP and carbon fibers

FRP technology is the application of high strength, high performance, non metallic fibers of carbon, E glass & aramid reinforced epoxy resinous polymeric composites, for strengthening of concrete structural members-slabs,baeams, columns, piers, and shear / masonary walls, chimneys, tunnels, etc

FRP Composites

Advantages

  • Very high strength to thickness or weight ratio-appreciable increase in strength and load carrying capacity without significant increase in dead load.
  • Enhanced stiffness ,shear & tensile capacities-increased load carrying . capacity and better resistance to seismic forces and deflection.
  • Chemical resistance – excellent resistance to acid and alkalis.
  • Thin sections-can be effectively used in space constrained areas.
  • Crep & fatigue resistance-ideal for conditions of sustained and repeated loading.
  • Economical-easy to install, time & labour saving and with negligible reduction of height & area of the floor.

Applications

  • Enhancement of strength of the structure
  • Enhancement of axial load carrying capacity of columns ny the mechanism of confinement.
  • Enhancement of flexural strength of beams, girders, floor/ deck slabs.
  • Enhancement of shear strength of beams and shear walls.
  • Enhancement of stiffness of slabs and beams and hence counters/ reduce deflection.

Need For FRP Composite Retrofitting

Distress in structures

  • Ageing of the structure.
  • Corrosion of steel reinforcement.
  • Chemical attack on concrete.
  • Earthquake, tsumani & fire damage to structures.

Change Of Design Parameters

  • Satisfy seismic design requirements.
  • Satisfy seismic design requirements.

Durability Enhancement

  • Reduced stress of rebar.
  • Prevention of further cracking, supporting crack width from expanding.
  • Reduce deformation /deflection.

Defects In Design & Construction.

  • Structure with insufficient Tensile Reinforcement (Steel).
  • Structure with insufficient section modulus (Depth of the structural material).

Footing Strengthening

Envisioning additional floors for the existing hotel complex, consultant wished to enlarge the footing size to support the additional load, which was successfully accomplished by Sree Vinayaka Constructions.

Column Strengthening

Using Carbon Fiber

  • Strengthening of columns using Carbon fiber wrapping using single and double layers as per design given by consultant to enhance the load bearing capacity.

Using MS Plates

  • Columns were retrofitted to achieve the strength required as per design using steel plates.

By Encasement/ Jacketing

  • The client aspired to refurbish the strength of columns in this 30 year old stadium which had seen deterioration over time.

Using Steel Plate

  • Column capital strengthening was accomplished using steel plate to counter punching shear.