Seismic Evaluation Of Tall Building Structures Using Nonlinear Static Procedures
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Seismic Evaluation Of Tall Building Structures Using Nonlinear Static Procedures
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Author : Malik Atik
language : en
Publisher:
Release Date : 2013
Seismic Evaluation Of Tall Building Structures Using Nonlinear Static Procedures written by Malik Atik and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Non linear dynamic analysis constitutes the most powerful method for the assessment of the non linear seismic response of structures subjected to strong earthquake motions. Considering the complexity associated to time history analysis, the use of nonlinear static techniques, or pushover analysis constitutes an efficient and easy to use alternative to dynamic analysis. This thesis develops innovative static nonlinear method to assess the seismic behavior of high-rise buildings. It is composed of three parts:In the first part, the continuum model which constitutes a simple and efficient tool to analyze high-rise wall-frame buildings is revisited. The influence of calculation precision in specifying the optimum level of wall curtailment is discussed. The relationship between the curtailment level and the resulting internal forces is investigated. The second part proposes a new single-run adaptive pushover method for the seismic assessment of shear wall structures. This method has two main advantages: It is practical tool to integrate the effect of higher modes with full interaction between them and it overcomes the criticisms forwarded against the previous single-run adaptive pushover analyses. The proposed method is presented as well as its numerical implementation. The third part presents an innovative method to specifying the seismic peak response quantities of the tall structures. The principle of the single-run adaptive pushover procedures is integrated with the capacity spectrum method proposed by ATC-40 (1996). Where, this latter is limited for structures that vibrate primarily in the fundamental mode.
Seismic Assessment Of Rc Buildings Using Nonlinear Static Pushover Analysis
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Author : Anas Fares
language : en
Publisher:
Release Date : 2018-12-26
Seismic Assessment Of Rc Buildings Using Nonlinear Static Pushover Analysis written by Anas Fares and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-26 with categories.
Document from the year 2018 in the subject Engineering - Civil Engineering, grade: 1, language: English, abstract: The study objective in this book is to demonstrate an assessment methodology through studying a local existing building, which was designed under gravity loads only. Based on the above, the case study building is assessed using an NSP that is called capacity spectrum method (CSM) as per ATC-40. The behavior of the structure is generated using nonlinear pushover analyses. The seismic assessment was conducted based on FEMA 356 performance criteria. According to FEMA 356, there are two approaches for seismic evaluation: global-level and member-level with three performance levels, which are immediate occupancy (IO), life safety (LS) and collapse prevention (CP). In addition, seismic design requirements that are mentioned in ASCE 7-10 were conducted in order to assess the building for irregularities. In Palestine, The seismic design of new buildings is mandatory. However, there are many existing buildings were mostly designed under the influence of gravity loads. Such buildings may stand vulnerable to earthquakes and thus need to be strengthened; so that they become safe. To achieve the required level of strengthening, advanced analysis and assessment tools must be used. There is a lack of studies in Palestine that provide practical "know-how" guidelines for local engineers on the assessment of existing buildings against seismic loads. Generally, the guidelines written in foreign codes (e.g. the ASCE or FEMA) are very broad and general and may pose a challenge to local engineers regarding the consistency of their implementation. This study bridges this gap between local engineers and international codes by putting these guidelines into action through a practical case study. Generally, four procedures are available for seismic analysis of buildings: two linear procedures, and two nonlinear procedures. The nonlinear procedures include the nonlinear stati
Advanced Earthquake Engineering Analysis
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Author : Alain Pecker
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-01-23
Advanced Earthquake Engineering Analysis written by Alain Pecker and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-01-23 with Science categories.
During the last decade, the state-of-the-art in Earthquake Engineering Design and Analysis has made significant steps towards a more rational analysis of structures. This book reviews the fundamentals of displacement based methods. Starting from engineering seismology and earthquake geotechnical engineering, it proceeds to focus on design, analysis and testing of structures with emphasis on buildings and bridges.
Improvement Of Nonlinear Static Seismic Analysis Procedures
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Author : U. s. Department of Homeland Security
language : en
Publisher: CreateSpace
Release Date : 2013-04-02
Improvement Of Nonlinear Static Seismic Analysis Procedures written by U. s. Department of Homeland Security and has been published by CreateSpace this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-02 with Technology & Engineering categories.
One of the primary goals of the Department of Homeland Security's Federal Emergency Management Agency (FEMA) and the National Earthquake Hazards Reduction Program (NEHRP) is to encourage design and building practices that address the earthquake hazard and minimize the resulting damage. This document, Improvement of Nonlinear Static Seismic Analysis Procedures (FEMA 440), reaffirms FEMA's ongoing efforts to improve the seismic safety of new and existing structures in this country. Knowledgeable engineers have long recognized that the response of buildings to strong ground shaking caused by earthquakes results in inelastic behavior. Until recently, most structural analysis techniques devised for practical application relied on linear procedures to predict the seismic behavior of buildings. With the publication of the ATC-40 Report, Seismic Evaluation and Retrofit of Concrete Buildings, in 1996, the FEMA 273 Report, Guidelines for the Seismic Rehabilitation of Buildings, in 1997, and the FEMA 356 Report, Prestandard and Commentary for the Seismic Rehabilitation of Buildings (which replaced FEMA 273), in 2000, nonlinear static analysis procedures became available to engineers providing efficient and transparent tools for predicting seismic behavior of structures. Both the ATC-40 and FEMA 356 documents present similar performance-based engineering methods that rely on nonlinear static analysis procedures for prediction of structural demands. While procedures in both documents involve generation of a “pushover” curve to predict the inelastic force-deformation behavior of the structure, they differ in the technique used to calculate the inelastic displacement demand for a given ground motion. The publication of the above cited documents resulted in the widespread use of these two methods, and engineers have since reported that the two procedures often give different estimates for displacement demand for the same building. Hence the Applied Technology Council (ATC) proposed to the Federal Emergency Management Agency (FEMA) in 2000 that a study be conducted to determine the reasons for differing results and to develop guidance for practicing engineers on improved application of these two methods. FEMA agreed to fund the investigation, and in October 2000, ATC commenced a project to provide guidance for improved applications of these two widely used inelastic seismic analysis procedures (ATC-55 Project). The ATC-55 Project had two objectives: (1) the development of practical recommendations for improved prediction of inelastic structural response of buildings to earthquakes (i.e., guidance for improved application of inelastic analysis procedures) and (2) the identification of important issues for future research. Intended outcomes of the project included: 1. Improved understanding of the inherent assumptions and theoretical underpinnings of existing and proposed updated inelastic analysis procedures. 2. Recognition of the applicability, limitations, and reliability of various procedures. 3. Guidelines for practicing engineers to apply the procedures to new and existing buildings. 4. Direction for researchers on issues for future improvements of inelastic analysis procedures. This report (FEMA 440) is the final and principal product of the ATC-55 Project. The document has three specific purposes: (1) to provide guidance directly applicable to the evaluation and design of actual structures by engineering practitioners; (2) to facilitate a basic conceptual understanding of underlying principles as well as the associated capabilities and limitations of the procedures; and (3) to provide additional detailed information used in the development of the document for future reference and use by researchers and others.
Advanced Methods For Seismic Performance Evaluation Of Building Structures
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Author : Sang Whan Han
language : en
Publisher: MDPI
Release Date : 2021-01-21
Advanced Methods For Seismic Performance Evaluation Of Building Structures written by Sang Whan Han and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-21 with Technology & Engineering categories.
This Special Issue was created to collect the most recent and novel research on seismic performance evaluation of building structures. This issue includes three important topics on seismic engineering for building structures: (1) seismic design and performance evaluation, (2) structural dynamics, and (3) seismic hazard and risk analysis. To protect building structures from earthquakes, it is necessary to conduct seismic performance evaluations on structures with reliable methods and to retrofit these structures appropriately using the results of the seismic performance evaluation.
Seismic Design Aids For Nonlinear Analysis Of Reinforced Concrete Structures
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Author : Srinivasan Chandrasekaran
language : en
Publisher: CRC Press
Release Date : 2016-04-19
Seismic Design Aids For Nonlinear Analysis Of Reinforced Concrete Structures written by Srinivasan Chandrasekaran and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-19 with Technology & Engineering categories.
Tools to Safeguard New Buildings and Assess Existing OnesNonlinear analysis methods such as static pushover are globally considered a reliable tool for seismic and structural assessment. But the accuracy of seismic capacity estimates-which can prevent catastrophic loss of life and astronomical damage repair costs-depends on the use of the correct b
Seismic Evaluation Of Existing Buildings
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Author :
language : en
Publisher: DIANE Publishing
Release Date : 1993-07
Seismic Evaluation Of Existing Buildings written by and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-07 with categories.
Provides design professionals & local building officials with a standard methodology to evaluate buildings of different types & occupancies in areas of different seismicity throughout the U.S.
Seismic Retrofit Of Existing Steel Tall Buildings With Supplemental Damping Devices
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Author : Sarven Akçelyan
language : en
Publisher:
Release Date : 2017
Seismic Retrofit Of Existing Steel Tall Buildings With Supplemental Damping Devices written by Sarven Akçelyan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
"A number of existing tall steel buildings in seismic regions may have potential deficiencies to seismic events with low probability of occurrence. It is understood that the seismic performance of such buildings should be evaluated thoroughly such that effective retrofit solutions can be proposed. In this thesis, the emphasis is on the implementation of supplemental damping devices, particularly, nonlinear viscous damper (NVDs), oil dampers with relief valves (ODs) and buckling-restrained braces (BRBs). In the context of performance based design there is an increased need to improve the reliability of state-of-art and simplified evaluation methods for tall buildings equipped with supplemental damping devices. This research presents enhanced models and algorithms for the numerical simulation of NVDs, ODs and BRBs within a nonlinear finite element program. Adaptive algorithms are implemented for computing high-precision solutions for NVDs and ODs that are typically represented mathematically with a nonlinear Maxwell model. Furthermore, a novel rate-dependent material model for BRBs and its calibration procedure with experimental data is developed. The applicability and computational efficiency of the numerical models is demonstrated through a number of validation examples with data that involve component experimentation as well as the utilization of full-scale shake table tests of a 5-story steel building equipped with supplemental damping devices. Based on a comparison of various engineering demand parameters with experimental data, it is shown that linear and nonlinear static procedures as per ASCE 41-13 may be unconservative for the evaluation of frame buildings with BRBs or NVDs, while the performance curves and P-Spectra methods provide more reliable predictions. In order to enhance current design methods for dampers in tall buildings, a practical multi-degree-of-freedom (MDF) performance curves tool is developed. The advantage of this tool over currently used methods is that the designer can directly obtain story-based EDPs for a range of design solutions, which do not contain typical errors due to transformation, (i.e. SDF idealization, higher modes, flexural deformations, irregular damping distribution) and linearization. A comprehensive study related to the seismic performance assessment of a benchmark existing 40-story steel building with moment-resisting frames that represents typical 1970s construction in North America is presented. Supplemental damping provided by ODs is utilized to design an efficient seismic retrofit system for the 40-story steel building under consideration. Multiple retrofit solutions are designed based on three damping levels. It is shown that the formation of local story collapse mechanisms can be prevented and the drift distribution can be controlled along the height of the building. The efficiency of vertical damping distribution methods varies with the level of the frame inelasticity." --
Theory Of Nonlinear Structural Analysis
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Author : Gang Li
language : en
Publisher: John Wiley & Sons
Release Date : 2014-03-20
Theory Of Nonlinear Structural Analysis written by Gang Li and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-03-20 with Technology & Engineering categories.
A comprehensive book focusing on the Force Analogy Method, a novel method for nonlinear dynamic analysis and simulation This book focusses on the Force Analogy Method, a novel method for nonlinear dynamic analysis and simulation. A review of the current nonlinear analysis method for earthquake engineering will be summarized and explained. Additionally, how the force analogy method can be used in nonlinear static analysis will be discussed through several nonlinear static examples. The emphasis of this book is to extend and develop the force analogy method to performing dynamic analysis on structures under earthquake excitations, where the force analogy method is incorporated in the flexural element, axial element, shearing element and so on will be exhibited. Moreover, the geometric nonlinearity into nonlinear dynamic analysis algorithm based on the force analogy method is included. The application of the force analogy method in seismic design for buildings and structural control area is discussed and combined with practical engineering.
Recent Advances In Earthquake Engineering In Europe
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Author : Kyriazis D. Pitilakis
language : en
Publisher:
Release Date : 2018
Recent Advances In Earthquake Engineering In Europe written by Kyriazis D. Pitilakis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Earthquake engineering categories.
This book is a collection of invited lectures including the 5th Nicholas Ambraseys distinguished lecture, four keynote lectures and twenty-two thematic lectures presented at the 16th European Conference on Earthquake Engineering, held in Thessaloniki, Greece, in June 2018. The lectures are put into chapters written by the most prominent internationally recognized academics, scientists, engineers and researchers in Europe. They address a comprehensive collection of state-of-the-art and cutting-edge topics in earthquake engineering, engineering seismology and seismic risk assessment and management. The book is of interest to civil engineers, engineering seismologists, seismic risk managers, policymakers and consulting companies covering a wide spectrum of fields from geotechnical and structural earthquake engineering, to engineering seismology and seismic risk assessment and management. Scientists, professional engineers, researchers, civil protection policymakers and students interested in the seismic design of civil engineering structures and infrastructures, hazard and risk assessment, seismic mitigation policies and strategies, will find in this book not only the most recent advances in the state-of-the-art, but also new ideas on future earthquake engineering and resilient design of structures.