Head office Haridwar New Delhi Lucknow Varanasi Kandla Bhopal Kolkata Silvassa Bhubaneshwar Mumbai Pune Goa Chennai Bengaluru Coimbatore TM SANRACHANA Area of operations LEADERS IN STRUCTURAL RETROFITTING An lSO 9000 - 2001 Company Office: 101/102, Monalisa CHS, Hariniwas Circle, Thane - West, 400 602 Telephone: +91 - 22 2540 0203 Telfax: +91 - 22 2544 0435 E-mail: [email protected] Website: www.sanrachana.in TM Leaders In Structural Retrofitting www.sanrachana.in Introduction Introduction Our Mission Sanrachana finds its meaning in the dictionary as the art or science of building civil architecture. That’s what we are, we combine the science through the most advanced technologies & art through our expertise. We are into delivering products & services . crafted to strengthen any civil structure. Founded in 2003 by Dr. Mangesh Joshi ( Ph.D IIT B), we have now evolved into a fast growing organization spread into four dynamic & diversified divisions with over 300 people working together from pan India centers. Within a span of 8 years, we have successfully demonstrated our capabilities across projects involving commercial properties, industrial facilities, energy plants and public infrastructure. Thus making us a leader in the segment of structural retrofitting. We critically understand all the requirements of every project we undertake. Some of these could be classified as driven by budgets, schedules, service life or any other unique structural challenges. We deploy field-proven techniques & technologies, leverage strong industry partnerships and touch it up with our artistic passion to deliver results that exceed expectations . • Our mission is to be committed to value creation • We will also advance & take our industries to next level • We will continuously seek to develop our people & our partnerships • We will achieve all this by seeking knowledge, applying artistic passion & developing advanced technologies. Our Principles • • • • • Being absolutely focused in every single situation and interaction Turning every problem into an opportunity To deploy people with the right qualities Continuously challenge our team to excel & to deliver Safety: know it, live it TM Specialty Retrofit Contracting Services • Concrete repairs • Structural strengthening • Structural retrofitting • Historic restoration Sanrachana applies the cutting edge technologies to repair, restore and increase the load -carrying capacity of concrete, steel, masonry and timber structures. Sanrachana combines an ultimate mix of design support, contracting, systems and materials. Hence making us a leader in strengthening of existing structures. Strengthening Services • Preliminary Evaluation • Design & Technical Support • Development of estimate • Scheduling & On site execution • Load Testing Solutions For • Additional Loads • Missing Reinforcement • Change in Code • Low Concrete Strength • Seismic Upgrade • Corrosion mitigation & Repairs • Blast Mitigation • Vibration Control UP GRADE Improving Performance Of Hardened Concrete • Specialty monomer & low viscosity grouts • External wrapping of carbon fiber composite • Near surface reinforcement & micro jacketing TM SHIELD Engineering Solutions For Corrosion Damages • Bipolar penetrating type corrosion inhibition system • Cathodic protection system • Execution of corrosion damaged repairs DATA STRONG Strengthening Data Centre & Ware Houses • Post-tension carbon laminates • Near surface reinforcement • Steel fabrication • Span shortening Leaders in Structural Retrofitting Complete Structural Retrofitting Solutions From India's Largest Specialty Retrofitting Company Complete Structural Retrofitting Solutions From India's Largest Specialty Retrofitting Company Sanrachana is well known for its competence to assist project teams in the development of unique and comprehensive solutions for every practical problem. . Engineering Support & System Expertise Sanrachana is a leader in designing of retrofit systems. We offer a unique blend of conventional materials and specialty reinforcement systems. We provide engineers with a team of technical support staff to perform preliminary evaluations and load testing. Once the desired load requirements have been determined, we offer access to reinforcing systems and the latest advancements in composite technology to help evaluate multiple strengthening options in order to produce the most cost-effective solution. Unmatched Experience Sanrachana brings up the knowledge and experience of more than 1000 successful repairs & strengthening projects. We also comprehensively take care of safety, economics, access and aesthetics. Upon selection of the strengthening method, we extensively preplan all aspects of the repair strategy. We mobilize our crew which is trained in specialized techniques and can work around the clock to safely complete projects under the tightest schedules and the toughest working conditions. Design-Build Repair Services: • • • • • Forensic Investigation Repair Design Project Planning Project Management Contracting Services Repair & Maintenance Services: • • • • • • • • Concrete & Structural Repair Protective Coatings & Linings Cathodic Protection Structural Support & Shoring Service Work Maintenance Contracts Turnaround & Shutdown Contracts Strengthening & Upgrade www.sanrachana.in Externally Bonded Composite External Post Tensioning With Composite Sanrachana Group has installed in excess of 10 lacs sq. ft. of Fiber Reinforced Polymer (FRP) material on more than 1000 structural strengthening projects. As a leader and innovator in structural strengthening and upgrades, we have also developed different standalone structural composite profiles. Fiber Reinforced Polymer (FRP) composites are thin laminates that are externally bonded to structural elements using an epoxy adhesive to increase their load-carrying capacity. FRP systems are made of high strength fibers (such as glass, carbon or steel) embedded in a resin matrix in the form of fabric sheets and pre-cured bars, rods or plates. FRP materials are lightweight, durable and non-corrosive and can be installed quickly, making them one of the most Cost-effective strengthening solutions. The Post tensioned CFRP Laminate method consists of a tension laminate, base plates, and intermediate anchoring devices. The tension plate is a carbon fiber reinforced polymer (CFRP) strip that has anchoring devices at both ends. Base plates are steel frames which are attached to the concrete surface for anchoring the tension plate and for holding the specially modified hydraulic jack. Intermediate anchoring devices are simple stainless steel plates and anchor bolt. The foremost advantage of this method is by applying prestress to the concrete member, it is effective in increasing not only the live load but also the dead load capacity of the member. Therefore, crack widths caused by dead load can be decreased. Second advantage is that by introducing a prestress, a redundant force is introduced so the tensile stress on structure is decreased. The distribution of bending moment is schematically shown in Figure below. Features and Benefits: • • • • • • • High Tensile Strength Flexible Lightweight Corrosion Resistant Faster & Cleaner Application No Heavy Equipment Required for Installation Maintains Aesthetics of the Structure Composite Application: • • • • • • Shear Capacity Enhancement Flexural Capacity Enhancement Compression Capacity Enhancement Blast Mitigation Seismic Retrofit Crack Control Leaders in Structural Retrofitting Corrosion Repairs Tailor Made Composite Solution Corrosion is a naturally occurring process that can lead to unsafe conditions, extensive repairs and ultimately structural colapse. By taking a proactive approach, corrosion can be mitigated prior to the onset of significant damage. Addressing the issue early in the life of the structure ensures the ability to efficiently plan or eliminate the need for costly repairs. Shield a part of Sanrachana provides solution to these needs. Stand Alone Composite: Sometimes structures require specially tailor made composites. In case of large number of fiber overlays and higher geometric stiffness requirement it is economical and faster to use stand alone composite. These are factory made profiles to suit required strengthening demand. These are fixed to structure on site, thereby requiring lesser shutdown time at site. Your problem l Most of the RCC structures display signs of corrosion distress within 15 – 20 years of their service life l This is caused by rusting of steel due to uncontrollable environmental factors l You wish to maintain your home, office and industrial structure. But slabs, columns, beams are . in distress condition. Our solution - SHIELD . Shield is the one stop solution for all your corrosion repairs needs. l We accurately analyze the present structural condition, recommend & execute customized repair . solutions l The solutions are led by cutting edge technology, highly skilled & experienced staff and professional . management. l Method Fix the factory made specially designed and fabricated profiles to structure by mechanical and chemical anchorage. Benefit • Higher strength and stiffness • Faster application • Less shutdown time Why SHIELD ? Shield Shield l Shield l Shield l l offers professional services including small structural repairs offers guaranteed solutions on basis of your requirements operates within properly defined time-lines & ensures timely delivery of project is driven by cutting edge technology, proven expertise & professional approach Penetrating corrosion inhibitor Rust stabilizing primer Protective coating Structural bond coat Structural section building Primer Wrapping with glass / carbon fibre Sand pasting Final Finish as per your choice This is a graphical representation may differ as per site conditions www.sanrachana.in Strengthening Of Data Centre Seismic Retrofitting Problem: As per Seismic map of India, more than half of the country’s population lives in moderate to very severe regions, where high-magnitude earthquake can occur. The buildings designed as per seismic design requirements survive earthquake with lesser structural damages and lesser causalities. Buildings of high importance and public gatherings such as schools, colleges, hospitals, telephone services, railways, airports, bridges, administrative office, power plants shopping malls etc. have to be designed as per seismic design requirement. Most of the old structures are either not designed for seismic forces or are designed as per old codes. It is essential to upgrade these structures to improve its performance in seismic activity. Sanrachana helps you in designing optimal retrofit strategy for your structure by using various state of the art analysis techniques such as push over analysis of structures and executing on site job in designed and planned manner. Certain areas in modern commercial premises like Banks, IT parks, offices etc have to accommodate additional load of data center, UPS and Battery rooms. RCC floors and RCC flat slabs of commercial floors are normally not designed for such additional load. Thus, strengthening of these floors becomes very critical for structural safety and stability point of view. Sanrachana offers a wide range of solutions to strengthen data centre floor without compromising on aesthetics of interiors. Solution & System Externally bonded FRP composites can be effectively used to take care of additional load. Posttensioned carbon fiber laminates provides active reinforcement for additional impose loads. Structural steel fabrication can be used to shorten the span. Testing and Validation Sanrachana has developed 'Quick Load Test' to insure that strengthened floor is capable of carrying additional load on it. Test is carried out before handing over floor to the client. . Leaders in Structural Retrofitting Enhancement Jacketing And Supplemental Steel Improving Performance Of Concrete Sanrachana’s technical knowhow, cutting edge reinforcing products, extensive field experience and innovative strengthening services enables us tackle any strengthening challenge. Besides traditional strengthening methods, we also provide alternative customized strengthening services. Concrete is a very critical construction component. Thus, it is important to ensure quality of concrete to its expected performance levels. Sometimes because of many uncontrollable parameters concrete does not live upto its design performance. We provide specialized solutions for this problem, thus avoiding laborious & time consuming work of dismantling and recasting of deficient concrete section. Techniques: Section Enlargement and Bonded Overlays are used to improve strength, increase stiffness or reduce crack widths at service levels. Additional concrete added to an existing structural member, that may also incorporate additional reinforcement. . Span Shortening can reduce the bending and shear forces on over stressed beams, joists and slabs. Typically, structural steel members and cast-in-place reinforced concrete members are used for span shortening applications. . Externally Bonded Steel Shapes are attached to existing concrete surfaces to add strength and stiffness to deficient members. External steel shapes include plates, channels, angles or built-up members. •Injection of very low viscosity Monomer Resins: Very low viscosity monomer grouted under pressure, improves the micro structure of concrete. Fill the micro cracks and voids in concrete, making it homogeneous and resilient . This can be tested by conducting pre and post NDT tests on concrete. ) •Wrapping concrete element by Fiber reinforced composites: External confinement by high strength carbon or glass fiber wrap improves over all performance of concrete like strength, stiffness and ductility. Depending on requirements; we can select different fiber materials, numbers of overlays and its orientation. •Micro Jacketing by Near Surface Reinforcement: By providing near surface reinforcement in concrete in form of steel or FRP rods, overall mechanical performance of RCC element can be improved without compromising on size of RCC element in case of deficiencies. •Grouting of bipolar corrosion inhibitor: Grouting of bipolar penetrating type corrosion inhibitor helps in reducing corrosion current for RCC structure. This can be carried out without exposing steel reinforcement inside the concrete. Because of its penetrating characteristics, it penetrates through concrete and protects steel reinforcement inside it. www.sanrachana.in Masonry, Timber And Heritage Structures Load Testing And Strength Evaluation It is important to not only restore facades of heritage building but to restore capacity of its load bearing elements. In old buildings, load bearing walls are made up of stone or brick masonry. Floor system is made of timber joist. The strength of these load bearing elements deteriorates over time and may lead to collapse of structure. Sanrachana provides solutions for such strengthening issues by using different techniques without compromising on aesthetics. Sanrachana provides full scale load testing services. This includes conventional load testing and non-destructive pre and post testing techniques to evaluate performance of structural elements. Key information such as loads, strains and deformations are obtained during the testing and are used to determine response parameters that are key to structural assessment. Methods likes polymeric cement grout and epoxy resin with moderate pressure can be effectively used to restore Stone and brick masonry walls. Seismic retrofitting of masonry building can be effectively carried out by providing FRP wraps and laminate to avoid out of plane bending. Timber joist can be effectively strengthened in shear as well as flexure by using carbon or glass fiber wraps and laminates. Leaders in Structural Retrofitting Seismic Retrofitting Of ESI Hospital Building, Kolkata Repairs Of RCC Tower Foundations On Mumbai Coast Line Because of alternate drying and wetting due to sea water, steel reinforcement in RC foundation was corroded to a great extent. This led to collapse of tower structure. Repairs were undertaken using conventional polymer mortar followed by application of carbon fiber wraps and laminate to compensate for loss of reinforcement and to ensure durability of repair works. “Sanrachana did detailed planning before starting the work. They ensured timely completion of the site where there was no electricity, no water and no access to roads. We are monitoring the structure for last 5 years . The condition of the structure is good. Even in the most aggressive marine climate.” Project Manager, Leading private power supply company. This was an old RCC hospital building. It was decided to upgrade the hospital structure as per the requirement of current seismic code. Exhaustive retrofitting work was carried out by conventional RCC jacketing and FRP wrapping. Corrosion mitigation was carried out by grouting of Bi-polar penetrating type corrosion inhibitor. Job was carried out in planned manner by taking all precautions without shifting patients out side hospital. “Sanrachana’s staff was very careful while working inside the hospital. They took utmost care to ensure proper safety and hygiene in the hospital premises while retrofitting”. Matron of Gynecologist ward ESI Hospital, Kolkata www.sanrachana.in Structural Retrofitting Of Aircel National Data Centre Building, Gurgaon 15 year old G+3 RCC structure was to be used as data centre. Floor slabs, columns and beams were strengthened to carry the floor load of 1000 Kg per Sq. mt. RCC Frame was also upgraded up to current seismic code requirement. Retrofitting was carried out by conventional footing, column and beam jacketing. Beam column joints and slab were wrapped by Glass fiber and post tensioned carbon laminates. The project was completed in 60 days period. “We were impressed by the technical expertise of Sanrachana. They understood the problem and came up with complete solution to suit our technical needs.” Project Manager, National Data Centre, Aircel Repairs To RCC Cooling Tower, NTCP Faridabad, Exhaustive patch repairs were carried out on damaged portion of RCC cooling tower. Protective treatments were done on exposed steel. Surface were build using epoxy-latex mortar, followed by application of glass fiber wraps in select areas. “Sanrachana ensured timely completion and co-operated to adjust our shut down requirements. The job was executed as per contract specifications and by following stringent safety norms.” Engineer incharge, NTPC Faridabad. Leaders in Structural Retrofitting Major Shut Down Repairs For Fertilizer Factory, Jalgaon RCC trusses and purlines of fertilizer plant were badly corroded. Falling chunks of concrete from height created safety hazards for the workers. RCC trusses were restored by chipping loose concrete, protective coating to reinforcement, section building by micro concrete and polymer modified mortar followed by wrapping of bi-directional glass fiber sheet. RCC trusess were restored in shutdown period of 21 days. Strengthening Of Runway Bridge, Mumbai 30 year old bridge over runway required strengthening for additional aircraft loads. Strengthening was achieved by strengthening the elements first by pressure grouting of low viscosity epoxy resins, followed by application of carbon fiber laminates from bottom and carbon wraps in shear zone. Work was completed within a period of 2 months. “We were fed up with repeated repair works to maintain our fertilizer plant. When Sanrachana stepped in they analyzed the situation and offered an unique solution for our problem. Afterwards they successfully completed their repair works for our four factories across Maharashtra.” Project Manager, MAIDC. www.sanrachana.in Improving Performance Of Concrete At Commercial Complex, Bengaluru Strengthening Of Fire Damaged Cold Storage Structure, Navi Mumbai After exhaustive testing by internal quality assurance team, it was decided to improve the performance of existing concrete in select areas. This was done by wrapping select RCC element by carbon fiber wrapping. In few locations it was done by conventional Jacketing or steel plate bonding RCC structure was exposed to higher temperature for considerable time. This caused micro cracking and spalling in concrete. Excessive deflections were also observed in a few locations. Repairing was carried out by grouting low viscosity monomers to seal the micro cracks and improving the micro structure of concrete. Spalled portions were treated by polymer modified mortar. Additional steel support was introduced to control the deflection. “Sanrachana team was quick to respond our queries and executed the job in professional manner in given time lines” Project Manager. “Excellent team to work with”Project Manager, Leading cold storage company. Leaders in Structural Retrofitting Restoration Of Dr. Bhimrao Ambedkar Samajik Sthal, Lucknow Structural Retrofitting Of Lotus Midtown Building, BKC, Mumbai Considering future FSI availability, client wanted to have provision for additional 2 floors for G+14 Building. Substructural RCC elements were strengthened using micro concrete jacketing to take care of this additional future load. Intermediate flat slab on required floors were upgraded to carry load of 1500 Kg/sq.mt for UPS and battery room requirement . using externally bonded post tensioned Carbon Laminates. RCC structure of main dome was in bad condition because of honeycombing. Entire RCC structure was grouted with low viscosity monomer. This was followed by coating of light weight glass fiber sheet and high build epoxy coating. “Sanrachana team rapidly mobilized the resources at site even after shortest notice period. They completed the job as per our schedule and specifications.” Engineer In-charge www.sanrachana.in Safety 24x7 Building safety as a core value has become an integral part of the health and well being of our lives and of those around us. It has also been critical to the success of our projects and our company’s growth. Production rates , schedules and budgets can create intense pressures to satisfy the client needs. This may cause individuals to compromise safety over deadlines. With our implementation of the safety 24x7 philosophy, we have adopted the concept of safe production, where safety and production goes hand in hand. Our employees demand and actively participate in the establishment of a safe environment by proactively identifying and communicating concerns on the job. All employees are given the authority and responsibility to stop what they are doing and address the situation if they feel it compromises safety. Selected Client List For Sanrachana Corporate Aircel Limited l l BP-Ergo Limited (CD) l Comfort Projects Pvt. Ltd. Edelweiss l Hindustan Unilever Limited l National Aviation Company of India Ltd. (Air India) l RBS - Royal Bank of Scotland l Spensors Retail Ltd. l The Bombay Dyeing & Manufacturing Co. Ltd. l Chiraghdin Industrial/ Chemical/ Pharma/Cold Storage l Ajanta Pharma Limited l Alcon Cement Company Pvt. Ltd. l Anchor Cork Pvt. Ltd. l Apollo Soyuz Electricals Pvt. Ltd. l Asahi India Glass Limited l Bafan Motors (Mumbai) Pvt. Ltd. l BASF India Limited l Bharat Construction Company l Bharat Oman Refineries Limited l Cadila Limited l Chemspec Chemicals Pvt. Ltd. l Detection Instruments (India) Pvt. Ltd. l Fine Organic Industries l Gharda Chemicals l George Philips Medical Engineering Pvt. Ltd. l Glenmark Generics Limited l Green Field Arches l Gujrat Themis Biosyn Limited l Hardelia Chemicals l Hemmo Pharmaceuticals Pvt. Ltd. l Hindalco Industries Limited l I. Ahmed & Company (Cold Storage & Exports ) Pvt. Ltd. l JBF Industries Limited l Kalamboli Structurals & Roofing Pvt. Ltd. l Kamala Mills l Lupin Limited l PRS Permacel Pvt. Ltd. l Retail Becharlal & Sons l RPG Life Science Limited l Suam Overseas Pvt. Ltd. l Supreme Gems Pvt. Ltd. l V. M. Salgaocar & Bro. Pvt. Ltd. l Savala Foods & Cold Storage Pvt. Ltd. l Thaker Industrial Estate l Themis Medicare Limited l United Phospurus Limited Hotels & Hospitals l Breach Candy Hospital Trust Hotels & Hospitality Pvt. Ltd., New Delhi l Bedekar Hospital, Thane l Chalet Hotel Ltd. l ESI Hospitals-Kolkata, Chennai, Coimbatore, Bhubaneshwar, Kanpur l Quality Inn Parle International l Hotel Twins, Thane l Hotel Vishvabharati, Mulund l Meditrina Dining Pvt. Ltd. l NRB Group Hotels, Goa l Pednest Hospital, Dombivili l Renaissance, Powai l Hotel Leela Palace, Bengaluru l Balprada Government & Semi Govt. l Central Public Works Department (CPWD) l Engineering Projects (India) Ltd (EPIL) l Hidustan Petroleum Corporation Limited. (HPCL) l Indian Rubber Manufactures Research Association l Maharashtra Agro-Industrial Development Corporation Limited l Meghalay House, New Delhi l National Buildings Construction Corporation Limited (NBCC) l NTPC Limited l Society for Petroleum Laboratory l Uttar Pradesh Projects Corporation Ltd. (UPPCL) l Uttar Pradesh Rajkiya Nirman Nigam (UPRNN) Real Estate & Developers Developers Pvt. Ltd. l Chirag Construction RMC l Dipti Builders l Bansi Mall Management School, Thane Convent Primary School, Andheri l Chetana Institute of Management & Research l NES, Mulund l Shakuntala School, Marine Lines l Sophia College l Smt. Sulochanadevi Singhania School, Thane l Vidya Prasarak Mondal, Thane l Vivek Education Society, Goregaon Residential Infrastructural l Bakhtawar, Public Trust l Alimaan Charitable Trust Seva Sangham Bombay , Bangur Nagar, Goregaon l Bombay Gymkhana l Khar Gymkhana l Marathi Granth Sangralay, Thane l Matunga Gujarai Club l SPARC SNS l Yashwantrao Chavan Prathistan, Mumbai l Ayyappa l Anjali CHS, l ACC Concrete Mumbai l B. E. Bllimoria l Brighton & Co. Limited l Costal Projects Limited l Hindustan Construction Co. Limited l Jaypee Group l Kapstone Construction Pvt. Ltd. l L&T ECC Limited l Megha Engineering & Infrastructures Limited l Navdeep Construction Co. l NKG Infra Limited l Progressive Civil Construction Co Pvt. Ltd. l Reliance Infrastructure Limited l Shapoorji Pallonji & Co. Limited l Unity Infraprojects Limited l Benchmark l BKC Properties l Bedekar l Canossa Company Pvt. Ltd. l Embassy Group l Mahagun Developers l Five Star Construction l G S Developers l Happy Homes l Haware Engineers & Builders Pvt. Ltd. l JMD, Gurgaon l K. Raheja Corporate Services Pvt. Ltd. l Kalpataru l KSC Enterprises l Lodha Developers l Mayfair Housing Pvt. Ltd. l Nirmal Lifestyles Limited l Nitco Limited l Prestige Group l Rajesh Builders l Sai Anand Constructions l Sanjay Builders & Developers l S.B. Realators l Sheth Builders Pvt. Ltd. l Shree Balaji Developers l Sobha Developers Limited l Suvidha Milind Business Ventures l Vijay Grihanirman Pvt. Ltd. l Westin Developers Pvt. Ltd. Schools/ Colleges l Abhivav Vidyalay, Dombivili School, Thane l A.K. Joshi Leaders in Structural Retrofitting Colaba, Mumbai Nariman Point, CHS, Nepeansea Road, Mumbai l Cliff CHS Ltd., Malabar Hill, Mumbai l Dhanashree CHS, Chembur, Mumbai l Dipti Shakti Mukti CHS, Versova, Mumbai l Lands End CHS Ltd. l Madhuban Apartment, Andheri-(w) l Mandar CHS, Dadar(w) l Minerva Mansion, Churni Road, Mumbai l New Jyoti CHS, Sector 17, Dwarika, New Delhi l Ocean Crest CHS, Warden road, Mumbai l Sagar Sangeet & Conversion Scheme CHS Ltd., Colaba, Mumbai l Shobhana Apartments, Khar (w), Mumbai
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