PDF eBook
Entire PDF eBook
53960k
$28
Get instant access to an entire eBook
Buy PDF Password
Download Complete PDF
eBook editions
Theoretical and Experimental Analysis of Dissipative Beam-to-Column Joints in Moment Resisting Steel Frames
by Massimo Latour
Paperback
eBook PDF

Publisher: | Dissertation |
Pub date: | 2011 |
Pages: | 443 |
ISBN-10: | 1612337635 |
ISBN-13: | 9781612337630 |
Categories: | Engineering Science Mathematics |
Abstract
Before the seismic events of Northridge (Los Angeles, 17 January 1994) and Hyogoken-Nanbu (Kobe, 17 January 1995), MRFs were supposed to be the most reliable seismic resistant systems due to the high number of dissipative zones that are able to develop. Before these earthquakes, especially in the United States, MRFs were realized, generally, by adopting fully welded connections, which, at the time, were retained to perform better compared to other joint typologies. In addition, the economic advantages deriving from the adoption of field fully welded connections strongly influenced choices of building owners and, as a result, led to the adoption of this joint typology in almost all pre-Northridge steel MRFs. After the Northridge earthquake, even though the loss of life was limited, the unexpected amount of damages occurred in structures adopting as seismic resistant system welded Moment Resisting Frames put into question the role played by welded connections on the whole of structural behavior.Therefore, after the seismic events, two strategies were identified to improve the behavior of fully welded connections. The first one is related to the improvement of the welding technique, usually strengthening the critical area subjected to fracture. The second one is based on the possibility of concentrating the energy dissipation in the beam, reducing the bending resistant area of beams by properly cutting the flanges in a zone close to beam-to-column connection. This weakening approach is commonly called RBS. A new design approach, which has been the subject of many studies in the last few decades, has gained growing interest in recent years. In fact, Eurocode 8 has opened the door to the idea of dissipating the seismic input energy in the connecting elements of beam-to-column joints.
In this work, attention is focused on this last approach. The first part of the work is descriptive and deals with the historical development and, in general, with the seismic behavior of Moment Resisting Frames. In the same chapter, general concepts concerning the component method, as introduced by last version of Eurocode 3, are given. Finally, the influence of the joint behaviour on main characteristics of partial strength and/or semi-rigid MRFs is evaluated by properly accounting for existing literature. The third chapter deals with an experimental analysis on the cyclic behaviour of classical partial strength beam-to-column joints. The main scope of the experimental campaign is to show how to control the dissipative behaviour of joints by properly designing the weakest joint component and by over-strengthening the other connecting elements. A design procedure is pointed out and the comparison among the results obtained by cyclic tests is presented in terms of energy dissipation capacity. In addition, by monitoring during the experimental tests both the whole joint and the single joint components it is shown that the energy dissipated by the joint is equal to the sum of the energy dissipated by the joint components. This result assures that the first phase of the component approach, i.e. the component identification, is properly carried out and that interaction between components under cyclic loads is negligible. Chapter 4 represents the extension of the work carried out in the previous chapter. In fact, on the base of the obtained results, the goal is to provide a mechanical cyclic model for the prediction of the overall joint behaviour, starting from existing literature models. Hence, a state-of-the-art review is first presented and then, a model employed to set up a computer program devoted to the prediction of the cyclic behaviour of steel beam-to-column joints is defined. In particular, the proposed cyclic model adopts Kim & Engelhardt's approach to model the shear panel behavior, Cofie & Krawinkler's model to predict Panels in Tension and Compression cyclic behavior, and Piluso et al.'s model for the prediction of the T-stub modelling the bolt components. Finally, in chapter 5, an innovative approach to improve the seismic behavior of bolted beam-to-column joints, which are affected by strength and stiffness degradation, is presented. The development of a dissipative device representing the application of ADAS concept to T-stubs is detailed. First, a mechanical and finite element model able to predict the whole force displacement curve of the so-called hourglass T-stubs is set up. Next, an experimental analysis aiming to compare the hysteretic behaviour and the dissipative capacities of rectangular and dissipative T-stubs is carried out. Finally, as a consequence of the study of the joint component, a further experimental analysis concerning the application of such devices to partial strength beam-to-column joints is presented and the results, in terms of moment-rotation curve and energy dissipation capacity, are discussed and compared to those obtained by the cyclic testing of classical joints.
PDF eBook
Entire PDF eBook
53960k
$28
Get instant access to an entire eBook
Buy PDF Password
Download Complete PDF
eBook editions
Share this book
Relevant events
NOV
15
SFN25
Neuroscience (SfN) Annual Meeting
Description: Organized by the Society for Neuroscience, this is one of the largest and most influential neuroscience conferences.
Neuroscience 2025
Final Opportunity to Shape the Sessions and Events at #SfN25
Submit...
Neuroscience (SfN) Annual Meeting
Description: Organized by the Society for Neuroscience, this is one of the largest and most influential neuroscience conferences.
Neuroscience 2...
Neuroscience (SfN) Annual Meeting
Description: Organized by the Society for Neuroscience, this is one of th...
Neuroscience (SfN) Annual Meeting
Description: Organized by the Society for Neuros...
15 - 19 Nov 2025
San Diego, United States
DEC
15
AGU25
American Geophysical Union (AGU) Fall Meeting
The submission period for session, town hall and workshop proposals for AGU25 will open March 2025.
Description: The largest Earth and space science meeting in the world, attracting scientists from around the globe.
...
American Geophysical Union (AGU) Fall Meeting
The submission period for session, town hall and workshop proposals for AGU25 will open March 2025.
Description: The largest Earth and space sci...
American Geophysical Union (AGU) Fall Meeting
The submission period for session, town hall and workshop proposals for A...
American Geophysical Union (AGU) Fall Meeting
The submission period for session, town hall and...
15 - 19 Dec 2025
New Orleans, United States
MAR
19
NPSE2024
NPSE 2026 | New Perspectives in Science Education 15th Edition - International Conference
The 15th Edition of the International Conference New Perspectives in Science Education will take place:
on 18 March 2026 | Online Event
on 19-20 March 2026 | in Florence (Italy)
The event brings together educators, r...
NPSE 2026 | New Perspectives in Science Education 15th Edition - International Conference
The 15th Edition of the International Conference New Perspectives in Science Education will take place:
on 18 March 2026 | Online Event
on 19-20 ...
NPSE 2026 | New Perspectives in Science Education 15th Edition - International Conference
The 15th Edition of the International Conference New Perspectives in Scie...
NPSE 2026 | New Perspectives in Science Education 15th Edition - International Conference
The 15th Edition of the International Conference...
19 - 20 Mar 2026
Florence, Italy
OCT
17
ICPEES2025
2025 2nd International Conference on Power Electronics and Energy System (ICPEES 2025)
After a careful reviewing process, all accepted papers after proper registration and presentation, will be published in The ICPEES 2025 Conference Proceedings. The proceedings will be submitted to Engineering Village, Scop...
2025 2nd International Conference on Power Electronics and Energy System (ICPEES 2025)
After a careful reviewing process, all accepted papers after proper registration and presentation, will be published in The ICPEES 2025 Conference ...
2025 2nd International Conference on Power Electronics and Energy System (ICPEES 2025)
After a careful reviewing process, all accepted papers after proper regis...
2025 2nd International Conference on Power Electronics and Energy System (ICPEES 2025)
After a careful reviewing process, all accepted ...
17 - 19 Oct 2025
Bangkok, Thailand
OCT
20
NANOP 2025
NANOP 2025: Functional Nanophotonics
After tremendous endeavors, Nanophotonics has already departed from its infancy and stepped into an exciting era, where research ideas and theoretical concepts are being vigorously transferred into functional devices and r...
NANOP 2025: Functional Nanophotonics
After tremendous endeavors, Nanophotonics has already departed from its infancy and stepped into an exciting era, where research ideas and theoreti...
NANOP 2025: Functional Nanophotonics
After tremendous endeavors, Nanophotonics has already departed from its i...
NANOP 2025: Functional Nanophotonics
After tremendous endeavors, Nanophotonics has al...
20 - 22 Oct 2025
Paris, France
OCT
22
2nd International Conference on Optics and Laser technology
Scitechseries cordially invites you for the “2nd International Conference on Optics and Laser technology” (Optics 2025) is scheduled to take place in Osaka, Japan from October 22-23, 2025.
This conference is following t...
2nd International Conference on Optics and Laser technology
Scitechseries cordially invites you for the “2nd International Conference on Optics and Laser technology” (Optics 2025) is scheduled to take place ...
2nd International Conference on Optics and Laser technology
Scitechseries cordially invites you for the “2nd International Conference...
2nd International Conference on Optics and Laser technology
Scitechseries cordially invites you for the “2nd...
22 - 23 Oct 2025
Osaka, Japan
OCT
23
9th Edition of World Congress on Infectious Disease
Be a part of the 9th Edition of the World Congress on Infectious Diseases (WCID 2025), happening from October 23-25, 2025, in the vibrant city of Orlando, Florida, USA. Under the theme "Global Strategies Against Infectious...
9th Edition of World Congress on Infectious Disease
Be a part of the 9th Edition of the World Congress on Infectious Diseases (WCID 2025), happening from October 23-25, 2025, in the vibrant city of O...
9th Edition of World Congress on Infectious Disease
Be a part of the 9th Edition of the World Congress on Infectious Diseases...
9th Edition of World Congress on Infectious Disease
Be a part of the 9th Edition of the World Congre...
23 - 25 Oct 2025
FloridA, United States
OCT
23
9th Edition of World Congress on Infectious Disease 2025
Be a part of the 9th Edition of the World Congress on Infectious Diseases (WCID 2025), happening from October 23-25, 2025, in the vibrant city of Orlando, Florida, USA. Under the theme "Global Strategies Against Infectious...
9th Edition of World Congress on Infectious Disease 2025
Be a part of the 9th Edition of the World Congress on Infectious Diseases (WCID 2025), happening from October 23-25, 2025, in the vibrant city of O...
9th Edition of World Congress on Infectious Disease 2025
Be a part of the 9th Edition of the World Congress on Infectious Diseases...
9th Edition of World Congress on Infectious Disease 2025
Be a part of the 9th Edition of the World Congre...
23 - 25 Oct 2025
FloridA, United States
OCT
24
ICARSH
10th International Conference on Advanced Research in Social Sciences and Humanities
10th International Conference on Advanced Research in Social Sciences and Humanities 2025
Dates: 24 – 26 October 2025
Location: Geneva, Switzerland
Venue: The Domaine Barton, Geneva Graduate Institute, Villa Barton
...
10th International Conference on Advanced Research in Social Sciences and Humanities
10th International Conference on Advanced Research in Social Sciences and Humanities 2025
Dates: 24 – 26 October 2025
Location: Geneva, Switzerla...
10th International Conference on Advanced Research in Social Sciences and Humanities
10th International Conference on Advanced Research in Social Sciences and...
10th International Conference on Advanced Research in Social Sciences and Humanities
10th International Conference on Advanced Resear...
24 - 26 Oct 2025
Geneva, Switzerland
OCT
25
MLNLP
6th International Conference on Machine Learning Techniques and NLP (MLNLP 2025)
6th International Conference on Machine Learning Techniques and NLP (MLNLP 2025)
October 25 ~ 26, 2025, Vienna, Austria
https://csity2025.org/mlnlp/index
Scope
6th International Conference on Machine Learning Techn...
6th International Conference on Machine Learning Techniques and NLP (MLNLP 2025)
6th International Conference on Machine Learning Techniques and NLP (MLNLP 2025)
October 25 ~ 26, 2025, Vienna, Austria
https://csity2025.org...
6th International Conference on Machine Learning Techniques and NLP (MLNLP 2025)
6th International Conference on Machine Learning Techniques and NLP (MLNL...
6th International Conference on Machine Learning Techniques and NLP (MLNLP 2025)
6th International Conference on Machine Learning...
25 - 26 Oct 2025
Vienna, Austria, Austria