Maintenance is the act of keeping something in good condition by checking or repairing it regularly. Since then, many rehabilitation techniques have been developed and used for repair and rehabilitation of earthquakedamaged and. Upon completion of this course, the student will be able to 1. Rehabilitation and retrofitting of structures notes rrs. Unit v repair, rehabilitation and retrofitting of structures 9 repairs to overcome low member strength. Dynamic analysis and design of offshore structures ocean.
Retrofitting of structures is the process of strengthening of structure along with the structural system, if required so as to comply all relevant codal provisions in force during that period. Conclusion rehabilitation of structures embroils contribution of high end technology, advanced skills and calculations. Nondestructive evaluation of concrete structures by. Understand the properties of fresh and hardened concrete. Port and harbour structures online course video lectures. Outsourcing retrofitting and rehabilitation of existing structures can present numerous benefits. On the other hand, the materials used may not perform well when used under water. Preface for the special issue on structures rehabilitation. Mod04 lec04 repair and rehabilitation fenders youtube. Retrofitting and rehabilitation of structure day 1 19th feb 2018. To bring back the position of the structure to its previous condition so it gives performance same as previously. A large stock of existing structures and infrastructure are deteriorated with use and time and might have passed their design life and require retrofitting and rehabilitation.
Introduction an introductory short course on rehabilitation and. This book is based on the work of the authors who have carried out various structural. Vessel type and size types of harbour port planning layout of ports types of breakwater design wave height, tide, storm surge and tsunami naval hydrographic chart and design of entrance channel and turning circle design of breakwater types of berthing structures loads on berthing structures and codal requirements berthing force, mooring force and seismic. Text books rehabilitation and retrofitting of structures rrs notes pdf rrs pdf notes rrs pdf rrs notes. Repair and rehabilitation indian concrete institute.
Once the decision is made, seismic retrofitting can be performed through several methods with various objectives such as increasing the load, deformation, andor energy dissipation capacity of the. Retrofitting of structures is an important course for seismic disaster mitigation, it attempts to make the course as practical as possible. Dot forget to like and subscribe time passing by by audionautix. This document supersedes fema 172, nehrp handbook of techniques for the seismic rehabilitation of existing buildings, which was published in 1992. Design and drawing of concrete structures, concrete technology learning objectives.
Decrease the working space of concrete structure due to extension in. Denison campbell, allen and harold roper, concrete structures, materials. Indian institute of technology madras and nptel via swayam. Repair, rehabilitation and retrofit periodicity and economics of condition survey interpretation of test results.
Repair, rehabilitation and retrofitting of building. Reference rehabilitation and retrofitting of structures rrs notes pdf rrs pdf notes rrs pdf rrs notes. Maintenance and repair of concrete structures class central. Sudhir misra,department of civil engineering,iit kanpur. This is a very responsible job to be done to save hazardous failure of structures due to deterioration. Hello friends check out my simple presentation on repair and rehabilitation of structure in very brief for a basic idea. Retrofitting and rehabilitation of structure day 1. To remain in good operating condition, buildings require regular inspection, maintenance, and repair. Buildings, connections, nondestructive, rehabilitation, retrofitting, stiffness, structures, vibration.
Maintenance and repair of concrete structures course swayam. Seismic retrofitting is a suitable technology for protection of a variety of structures. Rehabilitation and retrofitting of structures important. The success of repair activity depends on the identification of the root cause of the deterioration of the concrete structures. Reinforced cement concrete rcc study notes handwritten.
Seismic retrofitting also becomes a necessity in such structures in case adequate. Maintenance and repair of concrete structures course. Conclusion seismic retrofitting is a suitable technology for protection of a variety of structures. Corrosion in concrete structures is a process at different stages of which the structural effect damage is different. Such structures show distress after few years of construction and needs extensive repair and rehabilitation. As a result, these structures require specialized structural. Repair, restoration and retrofitting rehabilitation. Rehabilitation is the process of restoring the structure to service level, once it had and now lost. Repair, rehabilitation and retrofit periodicity and economics of. But, the expertise needed is not available in the basic level. Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes.
It has matured in the recent years to a highly reliable technology. Deterioration is observed in the form of cracking and corrosion riveros et al. At the end of the course students will be able to suggest evaluation and repairretrofitting methods for extending the service life of concrete structures. Retrofitting of building structures, including maintenance, rehabilitation and strengthening is not only an important issue in urban construction and management, but also a frequent problem to structural engineers in property management disciplines. A test will be conducted at the end of the course to evaluate the value objectives 1. Welded haunches for seismic retrofitting of bolted tstub connections and flexural strengthening of simple connections. Masonry is widely used type of construction in the world. Retrofitting of structures, repair and retrofitting of. Repairs, rehabilitation and retrofitting of structures prepared by. As steel structures play an important role in civil constructions, more attention is need for repairing and rehabilitation of such structures. Retrofitting of concrete structures of repair or retrofit solutions should address the main performance challenges in the structure, be performed with. The cost of retrofitting various infrastructures is estimated in the lakhs of. Retrofitting reduces the vulnerability of damage of an existing structure during a future earthquake. With better understanding of seismic demand on structures and with our recent experiences with large earthquakes near urban centers, the need of seismic retrofitting is well acknowledged.
Srinivasan chandrasekaran, department of ocean engineering, iit madras. It aims to strengthen a structure to satisfy the requirements of the current codes for seismic design. Nondestructive evaluation of concrete structures by bungey. Consequently, retrofitting procedures could be selected and applied so that the performance objective of the retrofit depends upon the importance of the structure and the desired structural performance during a seismic event. Mod01 lec38 considerations in repair of concrete structures part. Techniques for the seismic rehabilitation of existing. Pdf ce6021 repair and rehabilitation of structures rrs. The majority of repairs during a buildings service life are minor and a part of planned maintenance. The course will cover wide areas such as vessel types, types of harbours, design of entrance channel, turning circle, breakwaters, berthing structures. Following this, practices for typical nearsurface repair, corrosion protection, structural strengthening, structural stabilization, etc.
Nptel syllabus port and harbour structures video course course outline to make the students understand the basic principles of design of port and harbour structures. This is typically accomplished by modifying a buildings structural system to reduce or eliminate known seismic deficiencies. These draft guidelines are designed to complement these documents and indicate standards for the retrofitting of existing concrete structures, which in recent years has been applied in an increasingly number of cases. Repair, rehabilitation and retrofitting of masonry buildings. We will suggest the methods of repair or retrofitting for such buildings. Pdf rehabilitation and retrofitting of structures notes. Theerkadarshini asst professor,dept of civil,panimalar engineering college,india abstract. Mod01 lec37 considerations in repair of concrete structures part. Use of cfrp for rehabilitation of steel structures.
It has matures in recent years but the expertise needed is not available in the basic level. Rehabilitation of structures using frp wrap duration. Download it once and read it on your kindle device, pc, phones or tablets. The goal of a seismic structural retrofitting upgrading or rehabilitating project is to reduce the risk of death, serious injury, and property damage during an earthquake event.
Repair, rehabilitation techniquessystems for concrete. Seismic retrofitting techniques for concrete structures. The civil engineering industry has extensive experience of repair concrete structures above water many of the techniques used can, often with minor modifications, be used under water. Evaluation procedure for repair and strengthening of concrete structures before finalizing any scheme for repairs and rehabilitation of a distressed concrete structure, the concerned engineer has to be fully aware of the causes of causes of distress, extent of damage to the structure and the present condition of the concrete in the. We follow the ascesei standard 4106, which is a valuable software tool for structural engineers to improve the seismic performance of existing buildings and offer some unique advantages to their clientele. Maintenance and repair of concrete structures nptel.
From the visit of already retrofitted building, we take that case as a case study of our project and study all the aspects considered while retrofitting carried out. Repair and strengthening of reinforced concrete structures. Structures draft4 published by the japan society of civil engineers hereafter maintenance guidelines. We are here to provides you the best study notes from best coachings like made easy, ace academy etc and lecture notes from best institutions like mit open course, iit nptel open courses and oak ridge national laboratory, iae, vssut, memphis. To give a broad perspective of the concepts and theories of rehabilitation and retrofitting of structures 2. Download link is provided and students can download the anna university ce6021 repair and rehabilitation of structures rrs syllabus question bank lecture notes syllabus part a 2 marks with answers part b 16 marks question bank with answer, all the materials are listed below for the students to make use of it and score good maximum marks with our study materials. Nondestructive evaluation of concrete structures by bungey 4. Deflection, cracking, chemical disruption, weathering corrosion, wear, fire, leakage and marine exposure. Dr fixit institute of structural protection and rehabilitation, copidilite industries limited, mumbai paper published in proceedings of wsrr09 workshop 2009 on rehabilitation and retrofitting of structures held at indian institute of technology, mumbai from 28th to 30th august,2009. Rehabilitation and retrofitting of structres youtube.
Yet, despite best efforts, structural elements, components, or systems sometimes perform inadequately, deteriorate, or fail. Condition survey and health evaluation of buildings diagnosis of building. Rehabilitation of a building means returning a building or a structure to a useful. This subject imparts a broad knowledge in the area of repair and rehabilitation of structures. Retrofitting and rehabilitation of existing structures o2i. Generally, repairing or retrofitting of steel structures costs far less than replacement, takes less time for construction, and the service interruption time can be reduced. Reference rehabilitation and retrofitting of s tructures rrs notes pdf rrs pdf notes rrs pdf rrs notes. Conclusion seismic retrofitting techniques for concrete structures. The need for structural rehabilitation or retrofitting of buildings is motivated by the following circumstances.
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