Retrofitting of Bridges - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. 2 cylinders will be used as control cylinders. FRP systems have also been successfully used for seismic upgrading of concrete structures. All triangles formed by survey lines are considered plane triangles. Over any asset’s lifetime, there might be the need to add new functional features in order to better protect the structure itself or its users, or to offer an improved level of reliability or service, for instance: This process is handled via analysis by taking into account existing condition of the buildings, however, there are few studies focusing on the effectiveness of the applied retrofitting solutions. View retrofitting techniques .ppt from ECE MISC at Sri Venkateswara College of Engineering. maged RCC Structures Steps of retrofitting: 1. The Framework for Enterprise Architecture (or Zachman Framework) as it applies to Enterprises is simply a logical structure for classifying and organizing the descriptive representations of an Enterprise that are significant to the management of the Enterprise as well as to the development of the Enterprise’s systems, manual systems as well as automated systems. The environmental impact of buildings has become increasingly apparent. In addition, the method is cabaple of detecting damages in the building as well as updating the FE models of the historical structures. Tech. Graesser E.J successfully used Ni-Ti SMA for damping of seismic loads. Replacement of the full structure leads various disadvantages like labour charges, cost of the building material etc. Structures made out of stone, clay, timber, lime, masonry have now been transformed to modern concrete constructions. Since December 2000, that is since the program of the Swiss government for earth-quake mitigation took effect, the Swiss government has been examining the seismic safety of existing structures in its area of responsibility. Text books – Rehabilitation and Retrofitting of Structures – RRS notes pdf – RRS pdf notes – RRS Pdf – RRS Notes. Fig 25 Ottawa Teacher’s College, site plan Chapte 5, page 44 Fig 26 Ottawa Teacher’s College 1961-62 (University of Ottawa Archieve) Chapte 5, page 44 The overall objective of SERA is to give a significant contribution to improve the access to data, services and research infrastructures, … Key to a successful retrofit is considering the property as a whole and deciding on all the appropriate measures for that particular building (all buildings are unique). Another overlooked area is retrofitting – making older buildings more energy efficient. Determine as accurate as possible how the building behave when shaken by an earthquake check the building check building material quality list all component of the building that are damaged 1. Impressed Current Cathodic Protection systems are also more cost-effective for structures buried in soil. structures are not adequate, retrofitting strategies should be designed to improve the building’s ... Retrofitting the building will produce less debris than reconstructing the building. • Seismic Retrofittingis a collection mitigation techniques for Retrofitting is the technique of repair and rehabilitation to make structures more resistant to seismic activity, shaking of earth’s surface etc. Prof. Anumol Raju Mookambika Technical Campus Asst. Repairs and retrofitting methods and Post retrofitting evaluation for behavior of the structure. Augmenting . using this construction material. 5. evaluation of buildings based on . surveillance systems . D., compare in their work the superelastic bracing of RC-frames with classic steel bracings. -Construction or renovation of previously built structures to improve them. codes standards and is an . It is an improvement over the original strength when the evaluation of the building indicates that the strength available before the damage walls insufficient and restoration alone will not be adequate in future quakes. The book dwells on basic concepts in earthquake resistant design of buildings, first describes these at a conceptual • Therefore, seismic retrofitting of building structures is one of the most important aspects for mitigating seismic hazards especially in earthquake-prone countries. Selection of right materials, techniques and procedures to be employed for the repair of a given structures have been a major challenges. TYPES OF RETROFITTING There are two types of retrofitting used for repairing the structures. In depth Structural Audit and Condition assessment calcs for the structures with emphasis on load path and decapitation of seismic forces. CE 529 FRP Strengthening and Repair of Concrete Structures. practical columns & beams example retrofitting of unconfined masonry house using wire mesh plastered with sand & cement mortar retrofitting of r.c. ABSTRACT: Earthquake resistant design and the methodology about seismic evaluation and rehabilitation of existing structures. Retrofitting• Upgrading of certain building systems (existing structures) to make them more resistant to seismic activity (earthquake resistance)• Structures can be – Earthquake damaged – Earthquake vulnerable Retrofitting proves to be a better economic consideration and immediate shelter to problems rather than replacement of building. Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes.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. 1. evaluation of buildings based on . 3 Credit Hours. Steel elements used in retrofitting Steel elements in the form of plates, channels, angles, I-sections along with anchor bolts / through bolts could be used for retrofitting a damaged RCC building. Classification of Retrofitting Techniques There are two ways to enhance the seismic capacity of existing structures •Structural-level approach of retrofitting Global modifications to the structural system •Member level approach or local retrofitting Increase of the ductility of components with adequate It aims to cooperatively assess and improve the seismic vulnerability of primary schools in the Algarve (Portugal) and Huelva (Spain). Introduction Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. Strict application of the codes . During the post-disaster mitigation stage, a survey is required to investigate the conditions of the distressed building. Deflection, Cracking, Chemical disruption, weathering corrosion, wear, fire, leakage and marine exposure. Repair and Retrofitting of Deteriorated Reinforced Concrete Structures – Three Case Studies Vol. (2001) These structures have been created with huge investment of resources. Retrofitting method used is concrete jacketing. of cement 2. Updating and implementing to screen COVID-19 patients, etc.) Strict application of the codes . ON THE SEISMIC RETROFITTING OF EXISTING REINFORCED CONCRETE STRU CTURES C ARMINE L IMA Lab of Material testing and structures Experimental tests Numerical Simulation TOPICS 1. The building technique used with this material is simple and can be executed by masons and unskilled labour. free download engineering seminars, projects reports , engineering notes and eboks , earthquake resistant guide, Maintenance and Repair of Civil Structures, B.L. Dynamic Analysis and Design of Offshore Structures (Ocean Engineering & Oceanography Book 5) - Kindle edition by Chandrasekaran, Srinivasan. A full retrofit involves a series of measures, from roof to ground, inside and out, to tackle all issues around comfort and energy use. Engineering Notes and BPUT previous year questions for B.Tech in CSE, Mechanical, Electrical, Electronics, Civil available for free download in PDF format at lecturenotes.in, Engineering Class handwritten notes, exam notes, previous year questions, PDF free download SHISH PAL LECTURER IN CIVIL ENGINEERING GOVT. Its major field of application is retrofitting structures in an earthquake design. The buildings belong to the Institute Autonomo Case Popolari (IACP) of … Chloride analysis results Sample no. Presentation: Retrofitting Techniques for Masonry and Adobe Structures DAY 2 3. Retrofitting Using Frp Laminates paper describes the research progress to date in the field of strengthening and repair of steel structures using fiber reinforced polymers (FRP).While this subject has been extensively covered for concrete structures, retrofit of steel structures using FRP has not yet gained the same wide acceptance. Retrofitting of Concrete Members practical columns & beams example retrofitting of unconfined masonry house using wire mesh plastered with sand & cement mortar retrofitting of r.c. codes. This paper investigated the seismic retrofitting of an existing cable-stayed bridge through the use of a seismic isolation system. (100 mm) wide and in. Strength deficiency of concrete structural members can be due to poor workmanship, design errors, and deterioration due to the aggression of harmful agents. They offer greater local strength against impact, and minimize the outside surface area subject to corrosion, dirt, or other fouling. Demonstration : Quality Control DAY 5 8. retrofitting definition: 1. As an example, and related to the cost/benefit analysis, according to the authors, some buildings in Mexico City, repaired and strengthened after the 1985 earthquake, had a value between three and four times the operation cost. Standard Publications. analysis of the structures. A large number of schools have to be analysed. Presentation: Retrofitting Techniques for RCC Structures 4. Retrofitting is the seismic strengthening of existing damaged or undamaged structures. Seismic Protection of Structures, Civil engineering structures located in environments where earthquakes or large wind forces are common will be subjected to serious vibrations during their lifetime. The present paper outlines the newly developed retrofitting method and reports the results of experiments carried This course emphasizes the fundamental behavior of FRP strengthened/repaired reinforced concrete structures contributing towards sustainable and resilient civil infrastructure by extending the useful life of existing structures using advanced materials. 3. structures or some of their components may, for a variety of reasons, be found to be inadequate and in need of repair and/or strengthening. Steel structures nowadays are mostly fabricated of tubular sections. This paper presents an experimental research program aimed at developing a retrofitting technique that utilizes locally available high strength, lightweight, The skill of the worker must comply with the adopted retrofitting approaches. Retrofitting an existing building can oftentimes be more cost-effective than building a new facility. It can also be defined as increasing the seismic resistant of damaged structure by various techniques as per IS: 13935-1993. Therefore, there is a growing need to understand and compare the earthquake behavior of historical structures before and after retrofitting states. Cardone. For existing structures … HM-20 Unidirectional Carbon Fiber Wrap. This research was part of the European project Reducing Footprints of Monumental Structures, Landscapes and Buildings (ReFoMo) that explored the potential and demand for retrofitting and refurbishment projects which will improve the energy efficiency of heritage buildings. -Retrofitting refers to the addition of new technology or features to older systems. Promoting Earthquake Resistant Construction. Engineering Notes and BPUT previous year questions for B.Tech in CSE, Mechanical, Electrical, Electronics, Civil available for free download in PDF format at lecturenotes.in, Engineering Class handwritten notes, exam notes, previous year questions, PDF free download Review Paper on Seismic Retrofitting of Structures . the structures that need seismic retrofitting are identified correctly, and an optimal retrofitting is conducted in a cost effective fashion. We have been relentlessly working on providing services in concrete repairs & rehabilitation works. For old concrete structures the surface concrete becomes harder because of carbonation however the inside concrete strength is relatively less therefore the strength reported from rebound hammer test is to be corrected for old concretes. 3. It should be noted that there were Here are the top 10 green practices for commercial buildings to produce healthier and more resource-efficient models of operation. The Joint Research Centre is offering transnational access to the ELSA Reaction Wall (10 access days in total for two user groups) within the Horizon 2020 project SERA (Seismology and Earthquake Engineering Research Infrastructure Alliance for Europe).. TOTAL: 45 PERIODS During an earthquake, high energy is applied to the structure. upgrading to meet new seismic design requirements. •Introduction • Earthquake creates great devastation in terms of life, money and failures of structures. Rehabilitation & Retrofitting are very daunting tasks which involves proper study of design, visual inspection of structure and a detailed analysis of the cause for weakness of the structures that provides effective solutions. POLYTECHNIC AMBALA CITY 1. Many of the existing reinforced concrete (iii) The real repair and strengthening problems are faced at the stage after Structures (Draft)[4] published by the Japan Society of Civil Engineers (hereafter "Maintenance Guidelines"). REHABILITATION AND RETROFITTING OF STRUCTURES Course Code:A80151 Regulation-R15 JNTUH B. Search. Concrete Structures – Different Strengthening Techniques. Engineering Notes and BPUT previous year questions for B.Tech in CSE, Mechanical, Electrical, Electronics, Civil available for free download in PDF format at lecturenotes.in, Engineering Class handwritten notes, exam notes, previous year questions, PDF free download ments in the field of protection, repairs, rehabilitation, strengthening and retrofitting of the existing RCC structures taking advantage of the advancement in the materials science, more particularly the polymer science. Retrofitting of concrete structures using gp (gp-frp): 22 PC cylinder of size 300x150 mm are casted. must be avoided through crea- tive flexible and application of . Strengthening of structures – strengthening Methods – Retrofitting –Jacketing UNIT – V Health Monitoring of Structures – Use of Sensors – Building Instrumentation. 1.Local Retrofitting 2.Global Retrofitting LOCAL RETROFITTING The retrofitting in which we use to repair only the structural elements is called local retrofitting. (1.6 mm) thick) that are adhesively bonded to the surface of the structural member. Seismic evaluation of irregular structures. Presentation: Demolition and Retrofitting Techniques DAY 4 7. In recent years, the concept of steel bracing has also been applied to the retrofitting of reinforced concrete frames. These applications could be buried pipelines, large ships, retrofitting of offshore structures and concrete-rebar structures. shop-houses retrofitting of walls collapsed at the corners retrofitting of … Increased architectural flexibility, reduced weight of the structure, ease and speed of construction and the ability to choose more ductile systems can be considered as the main advantages of steel Thus, the retrofitting of structures is an essential component of long term disaster mitigation. We have been relentlessly working on providing services in concrete repairs & rehabilitation works. • ISIS Design Manual No. 8. Institute for Human Centered Design www.ADAchecklist.org Introduction ADA National Network State and local In seismic structures upgrading, one of the lateral force reduction caused by the earthquake is use of dampers. system . & Hughes, J. Post-Tensioned Retrofitting Maintains Landmarks Aesthetics. (retrofitting separate areas . Engineering Notes and BPUT previous year questions for B.Tech in CSE, Mechanical, Electrical, Electronics, Civil available for free download in PDF format at lecturenotes.in, Engineering Class handwritten notes, exam notes, previous year questions, PDF free download Retrofitting, Retrofitted, Bonding and beam-column, stadd prov8i. 149 this different samples were taken from mezzanine, roof slab, and beams for chloride analysis. Method was developed and demonstrated for Load Bearing Masonry Structures. Introduction • Earthquake creates great devastation in terms of life, money and failures of structures. One method employs per-manufactured rigid FRP strips (approximately 4 in. Retrofitting has come to the frontline as a component of the drive to make structures warmer proficient and practical. In actual retrofitting, a variety of retrofitting technologies (primarily these This paper presents a representative overview of the current state of using FRP materials as a retrofitting technique for the structures not designed to As per the design of the beam, 10j and 8j bars are being provided in tension and compression zones respectively. must be avoided through crea- tive flexible and application of . structures using the external cable method, bonding and jacketing method and overlaying and jacketing method, methods that are often used today and for which technologies are being established, are shown based on existing technologies. iii Preface This book explains concepts in behaviour of buildings during earthquakes. SEISMOLOGICAL INSTRUMENTS: SEISMOGRAPH, ACCELEROGRAPH, SEISMOSCOPE / MULTI Two primary methods are used to attach FRP composite materials to concrete structures (and to masonry, timber, and even metallic structures) for "retrofitting" purposes. retrofitting of existing structures has clearly increased. Course: Year IV, Semester II Prepared by: Mrs. Cici Jennifer Mr A Srinivas Assistant Professor Department of Civil Engineering codes. Gupta and Amit Gupta. The thickness of the plates can vary in the range of 30 to 180 mm. Seismic retrofitting of concrete members with frp composites - Seismic retrofitting is a process to modify or upgrade existing structures to make them resistant to earthquakes. Besides the advantages, retrofitting also has several disadvantages as follows: a. Non-Destructive Evaluation of Concrete Structures by Bungey 4. dilapidated structures – case studies UNIT V REPAIR, REHABILITATION AND RETROFITTING OF STRUCTURES 9 Repairs to overcome low member strength. Analysis results revealed that the structures did not have sufficient structural capacity to resist even a moderate earthquake. During the Saguenay earthquake 1988, one of the anchorage plates of the bridge supports failed. Concrete International p. 59-64 April 2003 • Taher, R. Structural Repairs and Preservation of Fallingwater New Jersey School of architecture, New Jersey Institute of Technology. Reinforced cement concrete is getting extensively used for construction of different type of structures for the last one century. 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. Prof. Liji Anna Mathew Toc H institute of Science & Technology Abstract Retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion etc. This goal maybe achieved by … II FRP systems provide a very practical tool for strengthening and retrofit of concrete structures, and are appropriate for: Flexural strengthening, Shear strengthening, and; Column confinement and ductility improvement. REFERENCES [1] Bhattacharjee J ( 2015) : “Need for repair/retrofitting of Concrete Structures using latest materials & Techniques” , in International Conference of NCB, in New Delhi on 01-04 Dec15 ,(PP 710-713) [2] Paul. to provide expanded capacity or capabilities . Such deteriorated structures can be rehabilitated and retrofitted by In the case of retrofitting applications, ferrocement plates are positioned at an appropriate location on the surface of the masonry structure and directly attached to it. PPT =RETROFITTING Er. 5 5 1 5 1 Retrofitting Of Building Civil Engineering Project-Word Document : Retrofitting Of Building Civil Engineering Project-PPT Gupta and Amit Gupta, Standard Publications. retrofitting before decisions on costly investments are taken • After retrofitting, be capable to monitor the ship performance and operate the ship at minimum energy usage. 4 (2008) FRP Rehabilitation of Reinforced Concrete Structures , by the Canadian Network of Centers of Excellence on Intelligent Sensing for Innovative Structures. Because of the vast variety of the building structures, the development of a general rule for retrofitting … implemented to improve the performance of structures and restore the desired function of structures. Ranso, (1981) Documents This goal maybe achieved by … Retrofitting is the Science and Technology of strengthening the existing structures or structural elements to enhance their performance with new technology, features and components. Method Was Developed And Demonstrated For PPT. SEISMIC RETROFITTING OF EXISTING STRUCTURES BY CETIN SAHIN A research project report submitted in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE IN CIVIL AND ENVIRONMENTAL ENGINEERING Project Advisor: MIKE GORJI Portland State University ©2014 . This can help cut fossil fuel byproducts, make it less expensive and simpler to run structures, and can add to beating helpless ventilation and … Retrofitting with FRP materials is a technically sound and cost effective repair technology and is now extensively being used as a seismic retrofitting method all over the world. What is a retrofitting ? Concrete Technology by Dr. Sudhir Misra,Department of Civil Engineering,IIT Kanpur.For more details on NPTEL visit http://nptel.ac.in • Seismic Retrofitting is a collection mitigation techniques for Earthquake Engineering. The International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM) was founded with the aim to promote scientific cooperation in the area of construction materials and structures worldwide. However, such techniques are not always adequate from the viewpoint of the increase in weight and the maintenance of the function. • Constructing safe rooms inside schools or other buildings in tornado-prone areas Three concrete beam specimens with dimensions of 150 mm height, 1800 mm length and 100 mm width were casted in the laboratory. This energy is applied in two types of kinetic and potential (strain) to structure and it is absorbed or amortized. Note for Rehabilitation and Retrofitting of Structures - RRS | lecture notes, notes, PDF free download, engineering notes, university notes, best pdf notes, semester, sem, year, for all, study material NVLN CONSTRUCTIONS PVT LTD is a provider of end to end building Restoration services to help clients to improve safety and longevity of structures. Structural engineers now give special attention to the ability of a structure to withstand … The process of retrofitting and rehabilitating current structures applies to a growing number of construction scenarios - examples range from aging buildings to seismic strengthening. The retrofitting process […] preparedness and response activities for COVID-19 . 15. Seismic retrofitting is the modification of existing/damaged structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. • It is of utmost importance for historic monuments, areas prone to severe earthquakes and tall or expensive structures. Here, too, there are effective and proven solutions. traditional and innovative techniques of seismic retrofitting of the same structures. retrofitting of historic buildings. 1. may result in the destruction of . 34 Seismic Evaluation and Retrofitting of Buildings and Structures Push along the X-direction Push along the Y-direction Fig. retrofitting method, which requires fewer reinforcing elements than conventional retrofitting methods, minimizes inconvenience to occupants while maintaining a high level of seismic safety. Financial and Environmental Impact Analysis of Sustainable Retrofitting is a Harvard Business (HBR) Case Study on Finance & Accounting , Fern Fort University provides HBR case study assignment help for just $11. 2. example retrofitting of unconfined masonry house with r.c. 2. This also serves as a measure to avoid predation from birds and extraneous fish during the fingerling stage. – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 8755ba-ZmFjO

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