Prediction Of The Collapse Load For Moment Resisting Steel Frame Structure Under Earthquake Forces Penerbit Usm
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Prediction Of The Collapse Load For Moment Resisting Steel Frame Structure Under Earthquake Forces Penerbit Usm
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Author : Fadzli Mohamed Nazri
language : en
Publisher: Penerbit USM
Release Date : 2015-12-01
Prediction Of The Collapse Load For Moment Resisting Steel Frame Structure Under Earthquake Forces Penerbit Usm written by Fadzli Mohamed Nazri and has been published by Penerbit USM this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-12-01 with Architecture categories.
This research book presents the fundamental work related to the prediction of collapse load for a moment-resisting steel frame (MRSF) subjected to earthquake forces.It demonstrates the extensive work in nonlinear analysis with particular reference to pushover analysis (POA) and incremental dynamic analysis (IDA), and deliberates at length the historical background for each method. More importantly, the book simplifies the collapse prediction process of a structure based on analytical expression. In addition, this book describes the MRSF which was designed according to Eurocode(s). This bookserves as a guide and reference for practitioners and students. Universiti Sains Malaysia, Penerbit Universiti Sains Malaysia
Prediction Of The Collapse Load For Moment Resisting Stell Frame Structure Under Earthquake Forces
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Author : Fadzli Mohamed Nazri
language : en
Publisher:
Release Date : 2015
Prediction Of The Collapse Load For Moment Resisting Stell Frame Structure Under Earthquake Forces written by Fadzli Mohamed Nazri and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Earthquake engineering categories.
This research book presents the fundamental work related to the prediction of collapse load for a moment-resisting steel frame (MRSF) subjected to earthquake forces.It demonstrates the extensive work in nonlinear analysis with particular reference to pushover analysis (POA) and incremental dynamic analysis (IDA), and deliberates at length the historical background for each method. More importantly, the book simplifies the collapse prediction process of a structure based on analytical expression. In addition, this book describes the MRSF which was designed according to Eurocode(s). This bookserves as a guide and reference for practitioners and students.
Prediction Of The Collapse Load For Moment Resisting Stell Frame Structure Under Earthquake Forces
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Author : Fadzli Mohamed Nazri
language : en
Publisher:
Release Date : 2015
Prediction Of The Collapse Load For Moment Resisting Stell Frame Structure Under Earthquake Forces written by Fadzli Mohamed Nazri and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Earthquake engineering categories.
This research book presents the fundamental work related to the prediction of collapse load for a moment-resisting steel frame (MRSF) subjected to earthquake forces. It demonstrates the extensive work in nonlinear analysis with particular reference to pushover analysis (POA) and incremental dynamic analysis (IDA), and deliberates at length the historical background for each method. More importantly, the book simplifies the collapse prediction process of a structure based on analytical expression. In addition, this book describes the MRSF which was designed according to Eurocode(s). This bookserves as a guide and reference for practitioners and students.
Predicting The Collapse Potential Of Structures In Earthquakes
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Author : Fadzli Mohamed Nazri
language : en
Publisher:
Release Date : 2011
Predicting The Collapse Potential Of Structures In Earthquakes written by Fadzli Mohamed Nazri and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
This study derived and presented an analytical expression to estimate the collapse potential of a generic class of multi-storey, uniform, moment-resisting steel frames (MRSF). This expression was compared and validated with nonlinear pushover analysis (POA) and Incremental Dynamic Analysis (IDA) for a range of different heights of buildings which were designed according to Eurocodes. Moreover, the factors that influence the collapse potential, such as lateral load patterns, displaced shape and arrangement of plastic hinges formed were also investigated. From this study, two key parameters were introduced, the damage index (DI), %, or adjusted DI, i, and strength parameter, s. The results indicated that the analytical expression produced quite promising results compared to both static and dynamic nonlinear finite element analyses. This analytical expression shows that the design base shear suggested by Eurocode 8 is not a good estimate of the collapse load. Furthermore, from this piece of know ledge, % or i and s are the important parameters that are needed to calibrate and develop an equivalent Single-Degree-of- Freedom (SDOF) system. The SDOF model can be used as a precursor to Multi-Degree-of- Freedom (MDOF) analysis. It can play a useful role in accelerograms records selection because it requires less computational time in determining critical records for MDOF analysis. However, it is difficult to develop the SDOF system and replace the MD OF system because parameters such as elastic viscous damping, ~, and pseudo-yield, x~, are difficult to control. These two parameters are dependant on the type of the structural system and ground motion records. This is because every single earthquake has its own unique characteristics. Moreover, a new intensity measure (IM) called normalised peak ground acceleration (pGA) has been introduced. It produces strong correlation between IM and DM (i.e. inter-storey drift) for all events rather than conventional IM, i.e. PGA and Se (.7;).
Theory And Design Of Seismic Resistant Steel Frames
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Author : Federico Mazzolani
language : en
Publisher: CRC Press
Release Date : 1996-05-09
Theory And Design Of Seismic Resistant Steel Frames written by Federico Mazzolani and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-05-09 with Architecture categories.
A state-of-the-art summary of recent developments in the behaviour, analysis and design of seismic resistant steel frames. Much more than a simple background volume, it gives the most recent results which can be used in the near future to improve the codified recommendations for steel structures in seismic zones. It contains new material which cannot be found in any standard reference book on seismic engineering.
Earthquake Induced Collapse Of Steel Moment Resisting Frames With Conventional And High Performance Steel Columns
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Author : Yusuke Suzuki
language : en
Publisher:
Release Date : 2019
Earthquake Induced Collapse Of Steel Moment Resisting Frames With Conventional And High Performance Steel Columns written by Yusuke Suzuki and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
"Capacity design principles have reduced the earthquake-induced collapse risk in steel frame buildings designed in seismic regions. Experiments suggest that the steel column behaviour may be significantly compromised due to member and local geometric instabilities, thereby increasing the associated collapse risk and likelihood of building demolition due to residual deformations. The High Yield Point (HYP400) steel is a steel material that has a higher yield stress and notch toughness but less strain hardening than conventional mild steels. HYP400 steel could enhance capacity design principles, such as the strong-column-weak-beam (SCWB) ratio when they are utilized in steel columns and potentially increase the collapse capacity of steel moment resisting frames (MRFs) under earthquake shaking. This thesis advances the state-of-knowledge through a multi-scale (from material to system) level study to assess the potential use of high-performance steel materials in minimizing earthquake-induced collapse of steel MRFs. The primary focus is on the characterization of the collapse behaviour of HYP400 and conventional steel hollow square section (HSS) columns by means of experimental testing and corroborating numerical simulations. Dual-parameter collapse-consistent loading histories (i.e., axial load and lateral drift demands) are developed to better quantify the flexural and axial demands in both interior and end columns in steel MRFs. These protocols reflect the asymmetric drifting of a building in one primary loading direction prior to dynamic instability ("ratcheting"). They also reflect the seismic demands imposed into steel columns within a steel MRF subjected to near-fault and long-duration ground motions. A landmark experimental program is conducted that characterizes the collapse behaviour of wide-flange and HSS steel columns under cyclic loading. The experimental program highlights the differences in the seismic demands and failure modes observed in steel columns depending on the imposed lateral and axial loading history, expected ground motion characteristics and building topology. It is shown that column axial shortening dominates the steel column stability. The hysteretic behaviour of HSS steel columns is further evaluated through corroborating finite element (FE) simulations. The steel column pre- and post-buckling behaviour is fully characterized depending on the type of steel material including the HYP400 steel. The FE results provide insight on the main differences of the lateral and axial damage progression between interior and end columns within the same steel MRF bay. The experimental data and corroborating finite element studies provide the basis for the development of a versatile steel column deterioration model that can explicitly simulate the axial-bending interaction, the column axial shortening due to local buckling induced softening and the cyclic deterioration in the column's strength and stiffness. Local buckling-induced softening is modeled through the development of an equivalent stress-strain formulation that includes a softening branch and can be fully characterized through conventional stub column tests. System level dynamic collapse simulation studies are conducted with over 80 archetype buildings with steel MRF systems ranging from 2 to 12-stories. Emphasis is placed on the importance of column axial shortening on the seismic performance of steel MRFs. It is shown that depending on the ground motion type, column axial shortening may result into slab tilting and catenary action prior to collapse. It is also shown that the use of the HYP400 steel columns can potentially enhance the collapse capacity of steel MRFs and reduce the expected residual lateral and vertical deformations in the aftermath of earthquakes." --
Collapse Risk Assessment Of Steel Moment Resisting Frames Designed With Deep Wide Flange Columns In Seismic Regions
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Author : Ahmed Elkady
language : en
Publisher:
Release Date : 2016
Collapse Risk Assessment Of Steel Moment Resisting Frames Designed With Deep Wide Flange Columns In Seismic Regions written by Ahmed Elkady and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
"In the context of Performance-Based Earthquake Engineering, there is an increasing need to quantify the collapse resistance of frame buildings under severe ground-motion shaking. The primary objective of this thesis is to advance, through experimental and analytical research, knowledge on the collapse risk assessment of steel frame buildings with steel moment-resisting frames (MRFs) designed in highly seismic regions in North America. Emphasis is placed on the characterization of the steel column hysteretic behaviour as well as the composite floor action and the destabilizing effects of the gravity framing system of steel frame buildings with steel MRFs. The dynamic stability of beam-columns that utilize deep and slender wide-flange cross sections is investigated through full-scale experimental testing. Some of the unique features of the experimental program involve realistic boundary conditions, unidirectional and bidirectional lateral loading and the use of various types of lateral loading protocols. The experimental data provide insight on the damage progression and deteriorating mechanisms observed in wide-flange beam-columns. The hysteretic behaviour of a wide range of cross-sections is further evaluated through a corroborating finite element (FE) parametric study. The findings of the coordinated experimental and analytical research are used to proposed recommendations for the seismic design of steel beam-columns in steel MRFs. A comprehensive system-level analytical study is then conducted in order to evaluate the collapse risk of steel frame buildings with special moment-resisting frames (SMFs) as per ASCE (2010) and Type D Ductile steel MRFs per NBCC (2010). The contributions of the composite floor slab and the gravity framing system are included in the analytical model representations of the steel frame buildings. These contributions have been historically ignored in prior analytical studies. In that respect, a practical approach is developed for modeling (a) the non-symmetric hysteretic behaviour of composite steel beams and panel zones as part of fully-restrained beam-to-column connections; and (b) the hysteretic behaviour of steel beams as part of conventional single-plate shear-tab beam-to-column connections. The collapse risk of typical steel frame buildings with steel MRFs is evaluated based on advanced collapse metrics such as the mean annual frequency of collapse. Based on the findings of the comprehensive system-level analytical study, the strong-column/weak-beam ratio that is typically used in the seismic design of steel MRFs is re-assessed such that a uniform probability of collapse can be achieved over the life expectancy of the steel frame buildings. A new definition of system overstrength (i.e., dynamic overstrength factor) is also proposed." --
Seismic Collapse Assessment Of A 20 Story Steel Moment Resisting Frame Structure
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Author :
language : en
Publisher:
Release Date : 2013
Seismic Collapse Assessment Of A 20 Story Steel Moment Resisting Frame Structure written by 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.
Parametric Collapse Evaluation Of Steel Moment Resisting Frames With Fuse Connections
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Author : Joseph Gilroy
language : en
Publisher:
Release Date : 2022
Parametric Collapse Evaluation Of Steel Moment Resisting Frames With Fuse Connections written by Joseph Gilroy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with categories.
Recent research has investigated a low damage seismic design concept for steel moment resisting frames (MRFs): the moment resisting fuse connection. Fuse connections are moment resisting connections that yield prior to the beam or column they connect. The connection acts as an easily repairable structural fuse of the seismic system instead of the beam, which is the typical fuse in a steel moment resisting frame designed to resist seismic loads, which can be very challenging and costly to repair after an earthquake. In most proposed fuse connections, energy dissipation is achieved by means of connection component yielding or friction slip. In AISC 358-16 (AISC, 2016c), the first prequalified fuse connection was added to the specification: the Simpson Strong-TieTM Yield-Link® (SST-YL) connection. Although the connection has shown sufficient strength and ductility at large levels of drift to reach prequalified status, there is some concern that steel MRFs with optimized fuse connections will not have the typical overstrength of traditional steel MRFs, which are usually controlled by drift limits rather than strength requirements. This concern raises the question: Are steel moment resisting frames with fuse connections adequately designed to prevent sidesway collapse during earthquakes when using typical seismic performance factors (R = 8, C [subscript d] = 5.5, and Ω0 = 3.0) for steel special moment resisting frames (SMRFs)? To investigate this concept, four three-bay steel special moment resisting frames with fuse connections were designed using provisions in ASCE7-16 (ASCE, 2017), AISC 341-16 (AISC, 2016a), AISC 360-16 (AISC, 2016b), and AISC 358-16s20 (AISC, 2020) with steel SMRF seismic performance factors. These frames were 2 stories, 4 stories, 6 stories, and 8 stories in height. These four archetypes were also redesigned with modified capacity design requirements more comparable to typical steel MRFs for a total of four design cases. These designs were evaluated using the FEMA P-695 methodology (FEMA, 2009) to determine if they have adequate collapse capacity. Different post-yield behaviors and failure criteria were modeled to determine their effect on system collapse capacity. Nonlinear pushover and response history analyses were done using OpenSEES (McKenna et al., 2010). The results of this investigation support that the seismic performance factors for typical SMRF frames are appropriate for use in SMRFs with fuse connections. However, there are several sources of uncertainty that require further investigation and research to determine to what extent this conclusion is accurate, particularly for new fuse connections that may be proposed. Suggestions for future research into numerical modeling and analysis of SMRFs with fuse connections are presented
Use Of Shakedown Analysis Technique In Optimum Seismic Design Of Moment Resisting Steel Structure
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Author : Han-Seon Lee
language : en
Publisher:
Release Date : 1989
Use Of Shakedown Analysis Technique In Optimum Seismic Design Of Moment Resisting Steel Structure written by Han-Seon Lee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.