Other … 454, Vol. Two retrofitting techniques are used. <]>> 129 0 obj <> endobj 2.2 Corner keys. The 2-story building is 12.6m high and made of brick work. 2-3, June-September 2005, pp. Therefore, the selection of the type of intervention is a complex process, and is governed by technical as well as financial and sociological considerations. 0000000016 00000 n ���hF��SV��]�k�}ы���E}}����o�������\�w�C۷QI�$�+��6���u��1��26K��d�(dZ�9~oH�9,��~ޟ�O�sp.BÌU�̄�i�&d��!�Nj��R����R�d�h� Z��2~K�Ʀ��T��T�^,��sȕ�H�2 W�����e��ܷ]߂�f�'�\V�q��b2��i9� ���5����}:� ��]�r�{�[ This paper presents a comprehensive overview of the techniques available for the seismic retrofitting of adobe buildings. Three retrofit techniques … Retrofit strategy refers to options of increasing the strength, stiffness and ductility of the elements or the building as a whole. Conclusion – Seismic Retrofitting Techniques for concrete structures: Seismic Retrofitting is a suitable technology for protection of a variety of structures. Seismic Retrofi tting Project: Assessment of Prototype Buildings - Getty Conservation Institute 1.3.1 Project objectives • Design low-tech seismic retrofi tting techniques, using locally available materials and expertise for Peruvian historic building types that have poten-tial … Lack of standards for methods of retrofitting; B. 0000008625 00000 n It is shown how this Analytical technique can be useful in deciding seismic retrofitting strategy and techniques. 2 Strategies for seismic retrofitting 17. Advanced Design Examples of Seismic Retrofit of Structures provides insights on the problems associated with the seismic retrofitting of existing structures. Key Words Retrofitting, rehabilitation, repair, seismic … European effort to develop seismic retrofit guidelines in the form of Part 1-4 of Eurocode 8 (CEN, 1998). 2 4. 0000003664 00000 n 1 0 obj Effectiveness of retrofitting techniques … ����R���k�� �D�8Ȣ9�t=���MV���y�K�9�4�@n�(o)��o�9}�y�s��'����. paper reviews and discuses the state-of-the-art on seismic retrofitting of masonry walls with emphasis on the conventional techniques. 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. Retrofitting is a new technology for Bangladesh and written in BNBC only a little. Two retrofitting techniques are used. 0000000696 00000 n paper reviews and discuses the state-of-the-art on seismic retrofitting of masonry walls with emphasis on the conventional techniques. 0000004233 00000 n design seismic retrofitting techniques that can be applied to similar churches along the South American coast. After many kinds of survey, we proposed three ideas of seismic retrofitting … %PDF-1.4 %���� The most common definitions of Retrofitting are To upgrade the earthquake resistance up to the level of the present day codes by appropriate techniques (IS 13935: 1993) Increasing the seismic resistance of a damaged building is called retrofitting … xref 2.1 Types of Buildings & Seismic Zones 2.2 Common Construction Faults 2.3 Factors Affecting Earthquake-induced Structural Damages Field tests of a retrofit portien of the 1-880 Cypress Street viaduct in Oakland following the Loma Prieta earthquake indicate [2] that a variety of techniques may be used to strengthen a viaduct in the transverse directíon to a level consistent wilh Iife safety. The authors present various international case studies of seismic retrofitting projects and the different possible strategies on how to handle complex problems encountered. SEISMIC RETROFITTING TECHNIQUES.pdf - Free download as PDF File (.pdf), Text File (.txt) or view presentation slides online. Introduction Seismic Retrofitting of Reinforced Concrete Buildings – Case Studies Introduction This chapter deals with a few case studies in which the applications of the most common retrofitting schemes are employed to improve the efficiency and proficiency of either the seismically deficient vulnerable buildings or earthquake … Subashi De Silva3 1Department of Civil and Environmental Engineering, Faculty of … ISET Journal of Earthquake Technology, Paper No. 4 shows such an 0000007162 00000 n retrofitting techniques have only been studied on individual cases, which means the result cannot be extended and applied directly to other cases with different types of construction materials … • Seismic retrofitting is a collection mitigation technique for earthquake engineering. Several retrofit strategies may be selected under a retrofit scheme of a building. Earthquake Mitigation is an important field of study from a long time now. There are many seismic retrofitting techniques available, depending upon the various types and conditions of structures. Seismic Retrofitting of Reinforced Concrete Buildings – Case Studies Introduction This chapter deals with a few case studies in which the applications of the most common retrofitting schemes are employed to improve the efficiency and proficiency of either the seismically deficient vulnerable buildings or earthquake damaged buildings. 2 0 obj 3 Collection of examples from Switzerland 22. reduction. Most of these buildings have not been designed for seismic loads. 3 0 obj to its pre-earthquake state Retrofitting Retrofitting includes upgrading earthquake resistance of either an existing seismically deficient building or earthquake damaged building up to the level of the present day codes by appropriate techniques. Example 2 is a chapel in a university built in 1920. Seismic Retrofitting Techniques. Seismic Retrofi tting Project: Assessment of Prototype Buildings - Getty Conservation Institute 1.3.1 Project objectives • Design low-tech seismic retrofi tting techniques, using locally … 3 main Retrofitting factors are “Seismic Assessment/Evaluation”, “Seismic Retrofit Design” and “Construction Supervision”. for existing buildings, retrofitting (strengthening) methods must be introduced. FEMA 547 - Techniques for the Seismic Rehabilitation of Existing Buildings [1] recommends different seismic retrofit alternatives for reinforced concrete (RC) buildings. • Upgrading of certain building systems (existing structures) to make them more resistant to seismic activity (earthquake … Keywords structural elements.- Retrofitting, Base Isolation, Retrofitting Techniques, Jacketing, Earthquake … seismic retrofitting of structure. It explains the need for a new, performance-based design code to provide a range of acceptable building behavior. It is of utmost importance for historic monuments, areas prone to severe earthquakes and tall or expensive structures. Keywords: RC Building, Seismic zone, Earthquake, Retrofitting, Strengthening. <>>> • Upgrading of certain building systems (existing structures) to make them more resistant to seismic activity (earthquake resistance) is really of more importance. 0000007900 00000 n • It is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquake. The Getty Seismic Adobe Project and its reports manifest the GCI’s commitment to identify and evaluate seismic retrofitting method-ologies that balance safety with the conservation of our cultural heritage. 1.3 Seismic Retrofitting techniques Earthquake creates great devastation in terms of life, money and failures of structures. Manual on ”Retrofitting of Existing Vulnerable School Buildings-Assessment to Retrofitting” Part II ii CONTENTS Preface i Contents ii List of Figures iii Introduction 1 Principle of Retrofitting 3 Vulnerability Assessment for a Novice 5 Vulnerability Assessment for an Engineer 7 Vulnerability Assessment for a Program Person 10 Various Techniques on Retrofitting 11 3 Retrofitting techniques As mentioned earlier, two retrofitting techniques were used. Some methods are additions of RC structural walls, use of steel bracings, seismic … General Strengthening Techniques There are many seismic retrofit techniques available, depending upon the various types and conditions of structures. 42, No. %���� 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. By: Haseeb Jamal / On: Jan 22, 2017 / Definition Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. Lakshmanan D(2006)3 In this Pushover analysis of the structures done by SAP 2000.Sap 2000 evaluating the various repair strategies for improvement of the seismic 1.2. socio-economic considerations in seismic safety of buildings 1.2.1. requirements to determine the retrofitting … This paper reviews and discuses the state-of-the-art on seismic retrofitting of masonry walls with emphasis on the conventional techniques. trailer De Silva2 and G.H.M.J. The retrofitting is examined with an application to a 64m high-rise SRC (Steel framed Reinforced Concrete) building built in 1970. %PDF-1.5 x��\[s�F�~w���N�U&��ඕr��(�ʞ8. The author also compares and contrasts various seismic resistant techniques in USA, Russia, Japan, Turkey, India, … The first technique is to jacket the columns and increase their reinforcing bars in order to withstand larger seismic forces through (0.2-second and 1.0-second response spectral accelerations of 0.66g and 0.23g, respectively). The first technique is to jacket the columns and increase their reinforcing bars in order to withstand larger seismic forces … SEISMIC RETROFITTING TECHNIQUES. 0000004978 00000 n 1.3 Seismic Retrofitting techniques Earthquake creates great devastation in terms of life, money and failures of structures. 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. Seismic retrofitting techniques are Structure level Retrofit, Addition of structural RC walls, Use of steel bracing, Seismic isolation Jacketing, Steel Jacketing etc are also pointed out in this Sumit Bharadwaj et.al, 2015 explained that retrofit in 4 Retrofitting of School Building 14 a Introduction 14 b Various Techniques on Retrofitting 15 c Retrofitting of Non-Structural Components 20 5 Case Studies: Retrofitting of School Building: … For buildings with large seismic deficiencies, a combination of conventional and FRP strengthening techniques may prove to be an effective retrofitting solution. 0000009347 00000 n Seismic Retrofitting Techniques. 2) Earthquake vulnerable buildings that have not yet experienced severe Earthquakes. Fig. may achieve the retrofit objectives for buildings with lightly insufficient seismic resistance. PDF | In many seismically active regions of the world there are large numbers of masonry buildings. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> This thesis describes the process for retrofitting a building for seismic criteria. Example 2 is a chapel in a university built in 1920. Introduction to Seismic Retrofitting Techniques:Earthquake creates great devastation in terms of life, money and failures of structures.Upgrading of certain building systems (existing structures) to make them more resistant to seismic activity (earthquake resistance) is really of more importance.Structures can be (a) Earthquake damaged, (b) Earthquake vulnerable Retrofitting … 0000004156 00000 n Traditional Retrofitting Techniques on Earthen Buildings in Peru 3 Figure 1: Interior part of Kuño Tambo church in Cusco with tie beams. 0000002663 00000 n ��x�_w\��Eߠ�(�V|S����Cu9,�����x[�g��/b"-�T�f���R`����Z(������?���f�0��RQ�}?���`�G������������i�⛚�Wq‡������f�IJ]� By: Haseeb Jamal / On: Jan 22, 2017 / Definition Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. comprehensive review of methods and techniques used for seismic retrofitting of RC buildings are discussed briefly. So Seismic Retrofitting is a collection of mitigation technique for Earthquake engineering. Earthquake-Resistant Structures features seismic design and retrofitting techniques for low and high raise buildings, single and multi-span bridges, dams and nuclear facilities. The Introduction Earthquake creates great devastation in terms of life, money and failures of structures. Retrofitting also incorporates upgrading of certain retrofitting of reinforced concrete buildings using traditional and innovative techniques, ISET journal ACKNOWLEDGEMENT of earthquake technology, 42(2-3), pp 21-46. 3.1 Cantonal police building in Sion VS 24 3.2 Fire station in Visp VS 26 3.3 Fire station in Basel 28 3.4 Substation in Basel 30 While the building was designed according to the state- Seismic Retrofitting is a collection mitigation techniques for Earthquake … 1. Finally, general concluding remarks are made along with possible future direction of research. This report reviews and introduces the latest design … B. Retrofitting Techniques . startxref 1.4 Decisive factors for seismic retrofit 14 . Generally, the structural retrofit of concentrically braced frames improved the seismic resistance of the building and it can be considered in the retrofit of moment frame structures to prevent … For buildings with large seismic deficiencies, a combination of conventional and FRP strengthening techniques may prove to be an effective retrofitting … … B. Retrofitting Techniques . x�b```"�Ad`B����n&g���W'N��Y���!�퓝!߭���[z[���q]`�^0��{�zk���ff�k���g��[�{/xn��� ��U��H�d͓@��%>V�\O4�M�p�-E�$Oz,;��}c��9� s��D��R׹0���]��Cz_[F�d�&�MW�x�$�^X�F��������,5E$j�%[ A���yH.�K�nO,�����"Bk8�* B?Mz������O42�S��DQ�~] �r�� ����T&$�1gYV� �5:�/�ܘ��9{~��΃)��� techniques for the seismic retrofit of existing steel moment-resisting frame structures. 129 20 The base isolation system is usually seen as a presentation of maximum capacity to resist seismic loads, which could be achieved for the structure without additional invasive retrofitting measures [10 V. Kilar, and S. Petrovcic, "Seismic rehabilitation of masonry heritage structures with base-isolation and with selected contemporary strengthening measures", Seismic Resistant Structures, p. It should be noted, it is likely that There are many seismic retrofitting techniques available, depending upon the various types and conditions of structures. <> The goals of seismic retrofitting can be summari zed as follows (IS 13935:1993 [4]; White [5]). Seismic retrofitting techniques are Structure level Retrofit, Addition of structural RC walls, Use of steel bracing, Seismic isolation Jacketing, Steel Jacketing etc are also pointed out in this Sumit Bharadwaj et.al, 2015 explained that retrofit … ^��jT&�2�2�dx�ii% >��p�!��G*�5&"�Bd�?K%���v}���^c�:?�o��ͽip�.�7�b��c�.�[G���N96w�d�5���U#x6Q90��T����UA���tW��d�z�����L�������s��q4 ��'�p&j�>j���O�)�Q�`�>�A�+���I����=�Fõ'��3���/�. It has matured in the recent years … %%EOF The study investigates the performance of three multi-story buildings with different heights that are located in a high seismic hazard zone. In … 0000002177 00000 n The repair and retrofitting strategies set forth in this manual are applicable only for the residential houses that falls in repair and retrofitting categories after Gorkha earthquake 2015 under the … 0000003913 00000 n Recent earthquakes have shown that many such buildings are seismically vulnerable and should be considered for retrofitting. may achieve the retrofit objectives for buildings with lightly insufficient seismic resistance. This procedure begins … �^}@‡Z���2_$f����͙k�R��h-���zQ��]������L�eR*� <> INNOVATIVE TECHNIQUES OF SEISMIC RETROFITTING INTERNATIONAL SEMINAR SYRACUSE – SICILY 15-17 JULY 2004 CONFERENCE CENTRE OPEN LAND Via Epipoli, 252 Siracusa. involved in the retrofit process and must be determined idually for each project. 0000001350 00000 n The 2-story building is 12.6m high and made of brick work. Conventional Strengthening Methods. 4. Key Words Retrofitting, rehabilitation, repair, seismic 1 …