Seismic Vulnerability of Existing Buildings with Steel Reinforced Concrete (SRC) Composite Columns PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Seismic Vulnerability of Existing Buildings with Steel Reinforced Concrete (SRC) Composite Columns PDF full book. Access full book title Seismic Vulnerability of Existing Buildings with Steel Reinforced Concrete (SRC) Composite Columns by Catalina del Pilar González Dueñas. Download full books in PDF and EPUB format.
Author: Catalina del Pilar González Dueñas Publisher: ISBN: Category : Languages : en Pages :
Book Description
Prior to enforcing seismic details in the 1980s, older-type full encased steel-concrete composite columns (SCR) were utilized in many buildings and bridges constructed in active seismic regions. However, there is a lack of knowledge in the literature on the behavior of SRC composite columns and a small number of tests available to derive seismic backbone curves for macro-modeling or retrofitting purposes. This research demonstrates that the ASCE 41-17 criteria underestimates the structural capacity of the system, via comparing the vulnerability curves obtained following the ASCE 41-17 requirements with the ones derived from the test results of six specimens of SRC columns tested in The American University in Cairo. First, the force-displacement curves for the specimens are developed, then, the design and non-linear characteristics of the two models are presented, and finally, the vulnerability curves are developed. The results show that the ASCE 41-17 criteria underestimates the capacity of the system.
Author: Catalina del Pilar González Dueñas Publisher: ISBN: Category : Languages : en Pages :
Book Description
Prior to enforcing seismic details in the 1980s, older-type full encased steel-concrete composite columns (SCR) were utilized in many buildings and bridges constructed in active seismic regions. However, there is a lack of knowledge in the literature on the behavior of SRC composite columns and a small number of tests available to derive seismic backbone curves for macro-modeling or retrofitting purposes. This research demonstrates that the ASCE 41-17 criteria underestimates the structural capacity of the system, via comparing the vulnerability curves obtained following the ASCE 41-17 requirements with the ones derived from the test results of six specimens of SRC columns tested in The American University in Cairo. First, the force-displacement curves for the specimens are developed, then, the design and non-linear characteristics of the two models are presented, and finally, the vulnerability curves are developed. The results show that the ASCE 41-17 criteria underestimates the capacity of the system.
Author: Mayer Gerges Farag Publisher: ISBN: Category : Buildings Languages : en Pages : 516
Book Description
Abstract: Existing concrete buildings lacking seismic details are well known to cause most losses during earthquakes so there is no wonder they are nicknamed killer buildings. In every new earthquake we see more evidence of their vulnerability. Ordinary building are taking the most focus of researchers from all over the world because of the majority of building are reinforced concrete. But one of the most widely used structure system contains steel reinforced concrete (SRC) composite columns. This type has been used since early of 1950 and nowadays most high rise or non-prismatic buildings are built using SRC composite columns. This Experimental study presented addresses the seismic performance of (SRC) composite columns experiencing shear and flexural failures using different concrete grades and confinement details to mimic both existing buildings with old construction details and modern buildings designed and built according to modern codes and construction practices. Test specimens represent exterior columns modeled based on a typical seismic design of a 30-story prototype new core wall-frame tall building and a 20-story prototype gravity existing building. Test parameters considered in this study are target failure mode, axial load ratio, percentage of longitudinal steel, structural steel section, concrete grade, and the transverse reinforcement volumetric ratio. Tests aim to characterize and compare the cyclic response of SRC columns with old and modern construction details. In particular, shear capacity, flexural capacity, residual axial capacity, deformation capacity and engineering demand parameters under different test variables are sought. Backbone curves for numerical simulation of seismic performance of SRC columns are presented. There are fourteen tested specimens divided to three groups; four specimens were tested as pilot, three specimens were tested representing modern building flexure deficient column and seven specimens for old building: five shear deficient specimens and two flexure deficient specimens. This work came out with many conclusions and recommendations for old and modern buildings to overcome the deficiency of SRC composite column. Retrofitting shear deficient SRC columns under high axial loads (>40%) and flexure deficient columns under high axial loads (higher than the balanced load, i.e. compression controlled failure) experiencing moderate to strong ground shaking seems inevitable.
Author: Stelios Antoniou Publisher: John Wiley & Sons ISBN: 1119987342 Category : Technology & Engineering Languages : en Pages : 549
Book Description
Seismic Retrofit of Existing Reinforced Concrete Buildings Understand the complexities and challenges of retrofitting building infrastructure Across the world, buildings are gradually becoming structurally unsound. Many were constructed before seismic load capacity was a mandatory component of building standards, and were often built with low-quality materials or using unsafe construction practices. Many more are simply aging, with materials degrading, and steel corroding. As a result, efforts are ongoing to retrofit existing structures, and to develop new techniques for assessing and enhancing seismic load capacity in order to create a safer building infrastructure worldwide. Seismic Retrofit of Existing Reinforced Concrete Buildings provides a thorough book-length discussion of these techniques and their applications. Balancing theory and practice, the book provides engineers with a broad base of knowledge from which to approach real-world seismic assessments and retrofitting projects. It incorporates knowledge and experience frequently omitted from the building design process for a fuller account of this critical engineering subfield. Seismic Retrofit of Existing Reinforced Concrete Buildings readers will also find: Detailed treatment of each available strengthening technique, complete with advantages and disadvantages In-depth guidelines to select a specific technique for a given building type and/or engineering scenario Step-by-step guidance through the assessment/retrofitting process Seismic Retrofit of Existing Reinforced Concrete Buildings is an ideal reference for civil and structural engineering professionals and advanced students, particularly those working in seismically active areas.
Author: Raja Rizwan Hussain Publisher: Springer ISBN: 9401772975 Category : Technology & Engineering Languages : en Pages : 129
Book Description
This book details the analysis and design of high rise buildings for gravity and seismic analysis. It provides the knowledge structural engineers need to retrofit existing structures in order to meet safety requirements and better prevent potential damage from such disasters as earthquakes and fires. Coverage includes actual case studies of existing buildings, reviews of current knowledge for damages and their mitigation, protective design technologies, and analytical and computational techniques. This monograph also provides an experimental investigation on the properties of fiber reinforced concrete that consists of natural fibres like coconut coir and also steel fibres that are used for comparison in both Normal Strength Concrete (NSC) and High Strength Concrete (HSC). In addition, the authors examine the use of various repair techniques for damaged high rise buildings. The book will help upcoming structural design engineers learn the computer aided analysis and design of real existing high rise buildings by using ACI code for application of the gravity loads, UBC- 97 for seismic analysis and retrofitting analysis by computer models. It will be of immense use to the student community, academicians, consultants and practicing professional engineers and scientists involved in the planning, design, execution, inspection and supervision for the proper retrofitting of buildings.
Author: George G. Penelis Publisher: CRC Press ISBN: 0415537630 Category : Technology & Engineering Languages : en Pages : 878
Book Description
Bearing in mind that reinforced concrete is a key component in a majority of built environment structures, Concrete Buildings in Seismic Regions combines the scientific knowledge of earthquake engineering with a focus on the design of reinforced concrete buildings in seismic regions. This book addresses practical design issues, providing an integrated, comprehensible, and clear presentation that is suitable for design practice. It combines current approaches to seismic analysis and design, with a particular focus on reinforced concrete structures, and includes: an overview of structural dynamics analysis and design of new R/C buildings in seismic regions post-earthquake damage evaluation, pre earthquake assessment of buildings and retrofitting procedures seismic risk management of R/C buildings within urban nuclei extended numerical example applications Concrete Buildings in Seismic Regions determines guidelines for the proper structural system for many types of buildings, explores recent developments, and covers the last two decades of analysis, design, and earthquake engineering. Divided into three parts, the book specifically addresses seismic demand issues and the basic issues of structural dynamics, considers the "capacity" of structural systems to withstand seismic effects in terms of strength and deformation, and highlights existing R/C buildings under seismic action. All of the book material has been adjusted to fit a modern seismic code and offers in-depth knowledge of the background upon which the code rules are based. It complies with the last edition of European Codes of Practice for R/C buildings in seismic regions, and includes references to the American Standards in effect for seismic design.
Author: Robert E. Englekirk Publisher: John Wiley & Sons ISBN: 0471081221 Category : Technology & Engineering Languages : en Pages : 850
Book Description
* Presents the basics of seismic-resistant design of concrete structures. * Provides a major focus on the seismic design of precast bracing systems.
Author: Konstantinos G. Megalooikonomou Publisher: Cambridge Scholars Publishing ISBN: 1527530361 Category : Technology & Engineering Languages : en Pages : 387
Book Description
Reinforced concrete columns play a very important role in structural performance. As such, it is essential to apply a suitable analytical tool to estimate their structural behaviour considering all failure mechanisms such as axial, shear, and flexural failures. This book highlights the development of a fiber beam-column element accounting for shear effects and the effect of tension stiffening through reinforcement-to-concrete bond, along with the employment of suitable constitutive material laws.
Author: Catalina del Pilar González Dueñas
Author: Catalina del Pilar González Dueñas
Author: Mayer Gerges Farag
Author: Stelios Antoniou
Author: Aydın Öztemel
Author: Raja Rizwan Hussain
Author: George G. Penelis
Author: Andrea Belleri
Author: Robert E. Englekirk
Author: Simone Barani
Author: Konstantinos G. Megalooikonomou