Introduction to retrofitting retrofitting is any change made to an existing structure to reduce or eliminate the possibility of damage to that structure from flooding, erosion, high winds, earthquakes, or other. However, the general public and those in charge of school facilities are usually not acquainted with seismic retrofitting, and there were opinions that it is difficult. It shall be promoted the implementation of their seismic retrofitting. Economic incentives for multifamily housing seismic.
Project report on retrofitting of building construction hello, friends welcome back so today im going to be share about project report on retrofitting of building construction i hope you all like this project. Seismic retrofitting techniques for concrete structures. To promote seismic retrofitting of existing vulnerable buildings ytechnical. Seismic retrofitting of the stejustine hospital in montreal. Seismic evaluation and strengthening of existing buildings. Index seismic retrofitting manual for highway structures. The construction price of retrofitted buildings is compared to the price of. As known, the main advantage of using seismic isolation systems. Nov 11, 2011 seismic retrofitting definition it is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. The seismic and energy retrofitting of existing european buildings with innovative. This is revealed during strong earthquakes that result in collapses. Seismic retrofitting definition it is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. Both the gsreb and the guidelines are based on extensive research, by seaoc members, of tiltups in past. This new legislation transferred sb 519 alquist the alfred e.
The getty seismic adobe project gsap was first discussed in october of 1990 at the sixth international conference on earthen architecture in las cruces, new mexico. The valley industry and commerce association vica supportsopposes economic incentives for multifamily housing owners to seismically retrofit their buildings. At the request of the fowg, which expresses its gratitude to him, he agreed to make available his extensive scientific knowledge on earthquake resistance of buildings. Though not applicable to all building types, the document also discusses some costeffective. Seismic retrofitting of lifeline structures in uttarakhand. Building code and existing buildings in japan kenji okazaki professor. National disaster management guidelines seismic retrofitting of deficient buildings and structures a publication of the national disaster management authority, government of india. Seismic retrofit property owners frequently asked questions 1. This thesis describes the process for retrofitting a building for seismic criteria. Seismic retrofit of historic building structures 1 and arash altoontash, ph.
Assessment of the likely seismic performance of the existing building stock and taking measures for improving seismic performance of the buildings have the potential of minimizing the earthquake induced losses. Guidelines for seismic retrofit of weakstory woodframe. Retrofitting of a building located in seismic area management of methods and their cost analysis joao paulo silva roque project presented as part of the requirements for. Innovative materials for seismic and energy retrofitting of the. As known, the main advantage of using seismic isolation systems for protection of historic buildings is that the retrofitting works can be performed at the basement or roof levels. Seismic retrofitting manual for highway structures. Innovative materials for seismic and energy retrofitting. Seismic evaluation and retrofit of multiunit woodframe buildings with weak first stories optimize benefits of ground story retrofits retrofit to add both strength and displacement capacity, and reduce torsion strength limit established by the upper structure create a damage and deformation absorption level. The retrofitting of existing buildings for seismic. Seismic evaluation and retrofit of existing buildings.
Pdf the seismic retrofitting of reinforced concrete buildings not designed to. Retrofitting buildings for natural hazards volume ii if an existing building is inadequate to resist natural hazard loads, retrofitting should be considered. Guidelines for seismic evaluation and rehabilitation of tiltup buildings guidelines, and chapter 2 of guidelines for seismic retrofit of existing buildings gsreb. Alquist hospital facilities seismic safety act sb 519 hssa of 1973 established a seismic. This publication focuses on retrofitting of existing structures and is based upon. Seismic disaster and damage of the primary and middle school buildings in the epicentral area caused by wenchuan earthquake with a magnitude of 8. This paper presents a comprehensive overview of the techniques available for the seismic retrofitting of adobe buildings. The need for retrofitting of old buildings emanates from their substandard design in terms of both earthquake resistance and thermal insulation. Seismic retrofitting techniques for historic adobe buildings.
The focus of this manual is on retrofitting buildings that are subject to flooding. There are many seismic retrofitting techniques available, depending upon the various types and conditions of structures. Manual on retrofitting of existing vulnerable school buildingsassessment to retrofitting part i i preface schools are institutions providing an education as well as a common place for community gatherings and meetings. The question should the california constitution be amended to provide that all earthquake safety upgrades be exempt from property tax reassessment until the. National disaster management guidelines on seismic retrofitting of deficient buildings and structures are formulated by ndma, in. The need for retrofitting of old buildings emanates from their substandard design in. Procedures to construct backbone curves for existing components of frames beams, joints, and columns have been extensively researched over the years. Pdf seismic retrofitting techniques for historic adobe buildings. Seismic assessment and retrofitting of existing buildings, according to the eurocode 8 part 3.
They should be models in providing examples of quality education and the. Thus, it is of critical importance that the structures that need seismic retrofitting are identified correctly, and an optimal retrofitting is conducted in a cost effective fashion. This thesis examines the seismic retrofitting project for the stejustine hospital in montreal. However, for detailed technical guidance on seismic retrofitting, reference should be made to fema 547 fema, 2006 which applies to all types of buildings and for all types of use and occupancy. Strategies and collection of examples in switzerland foen 2008 10 1 dealing with existing structures in recent years the seismic requirements in building standards have. Project report on retrofitting of building construction. I to investigate the effects of earthquake forces on buildings. But without using intervention technique which is based on seismic evaluation of the building structure, it may not be possible to improve the seismic performance of the. It has matured in the recent years to a highly reliable technology. The retrofitting of existing buildings for seismic criteria by christa besing b. Manual on retrofitting of existing vulnerable school buildingsassessment to retrofitting part i iv figure 40 retrofitting works for the trusses and roof providing proper materials and detailing 33. The seismic retrofitting of reinforced concrete buildings not designed to withstand. This manual is being prepared in three separate volumes providing retrofitting guidelines for adobe structure, masonry structure and. Building owners are encouraged to perform seismic diagnosis and seismic retrofitting on their buildings.
Project report on retrofitting of building construction hello, friends welcome back so today im going to be share about project report on retrofitting of building construction i hope you all like this project report, so lets get the start. Design objective retrofitting a historic structure in salt lake city to improve its ability to withstand seismic events can be carried out while minimizing negative impacts upon historic features and building materials. This is the third in a series of gsap volumes that began in 1996 with the publi. Horizontal forces of earthquakes cause damage to historic structures. This manual is being prepared in three separate volumes providing retrofitting guidelines for adobe structure, masonry structure and rcc structure covering both theoretical and practical aspects of retrofitting.
These documents are based on best practices in indonesia, the most seismic prone country in the world. Strategies and collection of examples in switzerland foen 2008 10 1 dealing with existing structures in recent years the seismic requirements in building standards have been getting distinctly more rigorous. Introduction to retrofitting retrofitting is any change made to an existing structure to reduce or eliminate the possibility of damage to that structure from flooding, erosion, high winds, earthquakes, or other hazards. The city has prepared a list of buildings included in the program that will be required to. For buildings with large seismic deficiencies, a combination of conventional and frp strengthening techniques may prove to be an effective retrofitting solution. Seismic retrofitting is a suitable technology for protection of a variety of structures. Seismic retrofitting building renovations technology and. 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. Simplified seismic diagnosis for wooden houses for. This thesis also intends to give out the fundamental notions in part 1 of eurocode 8, which are useful for. Guidelines for repair and retrofit of earthquake da maged rcc structures steps of retrofitting. To approximately capture the nonlinear response of structural elements, backbone envelope curves are used.
We believe these resources could be useful for other. The design technologies and building materials and methods that went into the original construction of these buildings are often drastically different from their. Pdf seismic retrofitting of school buildings of cyprus. Download pdf the principles of seismic retrofit refer to the goals, objectives and steps. Also, changes in service conditions, often made arbitrarily, may lead to substantial changes in the structural behaviour resulting in a degradation of the. Conclusion seismic retrofitting techniques for concrete structures. Innovative materials for seismic and energy retrofitting of. How do i know if my building is included in the program. The construction price of retrofitted buildings is compared to the price of demolishing the existing and building a new building. Proposed methodology is explained on the example of two buildings with the explanation of performed strengthening methods. Retrofitting of existing structures with insufficient seismic resistance accounts for a major portion of the total cost of hazard mitigation. Manual on retrofitting of existing vulnerable school buildings assessment to retrofitting part i iii list of figures figure 1 earthquake wave propagation 1 presentation by bambang budiono, prof. Planning and engineering guidelines for the seismic retrofitting.
The getty seismic adobe project gsap was first discussed in october of 1990 at the sixth international conference on earthen architecture in las cruces, new. In addition, on lots with buildings undergoing mandatory seismic retrofitting under chapter 34b of san francisco building code chapter 4d of san francisco existing building code. The vulnerability of existing buildings to seismic forces and their retrofitting is an international problem. Some methods are additions of rc structural walls, use of steel bracings. Below are links to the fema library records for earthquake publications of interest to seismic design and construction professionals. Retrofit construction of urm buildings consists of several approaches, including securing the structure to its foundation, joining building. In addition, wood frame buildings built under building codes in effect prior to. Handbook on seismic retrofit of buildings pdf methodology to evaluate the seismic safety of a large inventory of buildings as the fema 310 report, handbook for the seismic evaluation of buildings. Guidance documents such as the fib bulletin on seismic assessment and. Seismic retrofit property owners frequently asked questions.
Using seismic isolation systems for retrofitting historic. Seismic design of buildings worked examples worked examples presented at the workshop ec 8. The categories of losses from seismic building damage are well known. Retrofitting strategies for steel and composite buildings. Seismic retrofitting guidelines of buildings in nepal. Seismic retrofitting of buildings today, many countries are the victims of severe earthquakes resulting in the loss of lives of human being, animals, destruction of buildings, and many more. The state historic preservation office shpo and the local historic preservation office or commission may be able to identify consultants with experience in seismic rehabilitation of historic buildings, or be able to provide initial technical assistance on how to approach a seismic retrofit. The seismic and energy retrofitting of existing european buildings with innovative materials is addressed in this report. Part 2 retaining structures, slopes, tunnels, culverts and roadways this report is available only in pdf format. The gsreb is an appendix to the 2003 international existing building code. Seismic retrofitting quick reference school facilities that.
For buildings with large seismic deficiencies, a combination of conventional and frp strengthening techniques may. The hospital was built in the 1950s, at a time when seismic engineering regulations were rudimentary and applied with inconsistency. This training curriculum has been developed for providing an extensive theoretical and practical knowledge to the masons about the seismic retrofitting techniques. Some methods are additions of rc structural walls, use of steel bracings, seismic isolation, use of frp and supplemental energy dissipation devices dampers. These cripple walls are typically braced with weak seismic materials such as portland cement plaster or horizontal wood siding. Seismic retrofitting definition, techniques using modern. Seismic retrofitting approaches to 5 common building types. Seismic retrofitting of reinforced concrete buildings using. The owners of the buildings located along the specific emergency transportation roads are obligated to implement their seismic retrofitting, when the buildings have not enough seismic performance.
The applications include different types of buildings, industrial structures, bridges, urban transport structures, marine structures and earth retaining. I am glad to know that the ministry of urban development is publishing the seismic retrofitting guidelines of buildings in nepal adobe, seismic retrofitting guidelines of buildings in nepal masonry and seismic retrofitting guidelines of buildings in nepal rcc. The majority of structures in seismic prone areas worldwide are structures that have. Following the publications are links to several tools of use to this audience. Planning and engineering guidelines for the seismic. Three buildings make up the end of the collection of examples, in which the existing state. The retrofit techniques are also applicable for other natural hazards such as tropical cyclones, tornadoes, and severe winds from thunderstorms. The retrofitting of existing buildings for seismic criteria. Assessment of prototype buildings etty conservation institute contents volume 1 project participants v chapter 1 background 1. Handbook on seismic retrofit of buildings draft for commentsapr2007 ebook download as pdf file. Many of the buildings that collapsed or suffered damage in the great hanshinawaji earthquake were designed based on defunct earthquake resistance standards.
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