2 edition of Seismic retrofitting of rectangular reinforced concrete bridge columns for shear found in the catalog.
Seismic retrofitting of rectangular reinforced concrete bridge columns for shear
Laura Lynn Bernards
Written in English
|Statement||by Laura Lynn Bernards.|
|The Physical Object|
|Pagination||xii, 100 leaves, bound :|
|Number of Pages||100|
shear, and torsion loads during earthquakes. The combination of axial loads, shear force, and flexural and torsional moments can result in complex failure modes of RC bridge columns. This study carried out experimental and analytical studies to investigate the seismic performance of circular RC columns under combined loading including torsion. Steckel, G.L., G.F. Hawkins, and J.L. Bauer Jr (a). â Qualifica- tions for Seismic Retrofitting of Bridge Columns Using Compos- 23 ites,â Composite Properties Characterization, Aerospace Report No. ATR()-2, Volume 1, The Aerospace Corporation, El Segundo, California.
The seismic behavior of short circular reinforced concrete columns was studied by testing seven columns retrofitted with prestressing steel wire (PSW), subjected to combined constant axial compression and lateral cyclic load. The main test parameters were configuration index of PSW, prestressing level of PSW, and axial compression ratio. An analysis and discussion of the test results including Cited by: 2. Shear failure in reinforced concrete bridge columns due to seismic loading has proven to be an issue in both experimental research and post-earthquake investigations. Columns are expected to be the primary elements of energy dissipation in bridges subjected to seismic loads, hence they require high ductility. Failure of bridge columns often File Size: KB.
Seismic Design of Reinforced Concrete Buildings focuses on the following topics: • Seismic design and performance verification • Steel reinforcement • Concrete • Confined concrete • Axially loaded members • Moment and axial force • Shear in beams, columns, and walls • Development and anchorage • Beam-column connections. The seismic performance evaluation and retrofit process are very important in damaged bridges. If the result is not appropriate, then retrofit process are required. In this paper, to validate the seismic performance of retrofitted bridge experimentally, an experimental study was conducted to verify the application and efficiency of the jacket retrofit method to ensure seismic performance of Author: Kyoungbong Han, Dooyong Cho, Jinsoo Kim.
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An object-oriented computer code, based on a moment-curvature analysis with inclusion of fiber-reinforced polymer-confined concrete models, was developed to preCited by: This study investigated retrofitting measures applied to 2/5-scale shear-deficient columns representative of rectangular bridge columns in the Puget Sound area of Washington state.
The retrofit methods studied included external hoops applied over the height of the column and full-height rectangular steel jacketing.
Seismic Retrofitting of Rectangular Bridge Column for Shear Author: Load limits, Performance evaluations, Reinforced concrete, Reinforcement \(Engineering\), Retrofitting, Shear strength, S\ teel Keywords: bridge column, seismic retrofitting, reinforced concrete, shear failure, Washington state.
Title: Steel Jacket Retrofitting of Reinforced Concrete Bridge Columns for Enhanced Shear Strength--Part 2: Test Results and Comparison With Theory. Author(s): M. Nigel Priestley, Frieder Seible, Yan Xiao, an dRavindra Verma.
Publication: Structural Journal. Volume: Issue: 5. Appears on pages(s): Cited by: This paper describes an experimental research program on the use of rectangular steel jackets for seismic retrofit of nonductile reinforced concrete frame columns with inadequate shear strength.
SEISMIC DESIGN OF REINFORCED CONCRETE STRUCTURES Topic 11 is the seismic design of reinforced concrete structures, primarily buildings. During this lesson you will learn the basics of seismic design of reinforced concrete buildings.
Buildings designed using these principles will fare better in a seismic event than the building shown in this slide. Aspects relating to the shear strength of circular and rectangular columns under seismic loading are presented. An examination of existing design equations reveals wide differences in predicted responses.
Written by a renowned seismic engineering expert, this authoritative resource discusses the theory and practice for the design and evaluation of earthquakeresisting reinforced concrete buildings.
The book addresses the behavior of reinforced concrete materials, components, and systems subjected to routine and extreme loads, with an emphasis on /5(23). Reinforced Polymer Retrofitting of Rectangular Reinforced Concrete Columns with or without Corrosion”, ACI S t ructural Journal, (4), Bonacci, J.F., and Maalej, M.
Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to 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.
Prior to the introduction of modern seismic. and ductility capacity of rectangular reinforced concrete bridge columns. A detailed account of the research program can be found elsewhere (J). This paper presents an overview of the study and discussion of the test results and conclusions.
BRIDGE File Size: 1MB. Jack Moehle, Ph.D., is the T.Y. and Margaret Lin Professor of Engineering in the Department of Civil and Environmental Engineering at the University of California, Berkeley.
He was founding director of the Pacific Earthquake Engineering Research Center. Moehle played a leading role on several teams to develop professional guidance and design standards, including Improved Seismic Design Cited by: The increase in concrete confinement and the resulting benefits for member deformation capacity are probably the most important advantages of FRP jacketing in repair/retrofitting of concrete structures.
A vast number of tests on both concrete specimens and reinforced concrete members has demonstrated that confinement influences many aspects of structural response (flexural and shear strength Cited by: 1.
Many existing reinforced concrete structures were constructed with substandard characteristics. Low quality concrete, poor transverse reinforcement details and insufficient flexural strength are among the most common deficiencies. While substandard structures are in need of retrofitting, particularly in seismic areas, problems such as high costs and disturbance to occupants are major obstacles Cited by: Retrofitting of Reinforced Concrete Members.
In reinforced concrete columns and bridge piers, the requirement to satisfy the need for better esthetics, higher efficiency, greater performance, smaller size is continuously leading to highly complex cross-sections made of several materials and complicated shapes, with arbitrary distribution of.
Emphasizes behavior at the ultimate load, and, in particular, aspects of the seismic design of reinforced concrete structures. Law ofDecree Law 33 of Lapped splices in bridge piers and in columns of earthquake resisting reinforced concrete frames by T Paulay Book 1 edition published in in English and held by 12 WorldCat member libraries worldwide.
Seismic retrofit of reinforced concrete bridge columns using titanium-alloy bars Reforço sísmico de pilares de betão armado com barras de titânio Mackenzie Lostra Christopher Higgins André R.
Barbosa Resumo Este artigo apresenta resultados de ensaios experimentais executados à escala real de uma solução de reforço sísmico para. Repair and Strengthening of Reinforced Concrete Structures Submitted by Eng.
MOHAMED ABD ELMONEAM ZAKY For the Degree of Master of Engineering in Civil Engineering Supervised by ASSOCIATED PROF. KHALID MOHAMED MORSY STRUCTURAL ENGINEERING DEPARTMENT (June File Size: 1MB. Michael Fardis Seismic Design of Reinforced Concrete Seismic Analysis & Design of 10 Story RC Building using ETABS Seismic CD Retrofit of Rectangular Bridge Columns Using CFRP Wrapping Assessment and Retrofitting Of Concrete Buildings Seismic Design, Response Modification and Retrofit of Bridge Seismic Design.
retrofitting could be the development of new load paths that may lead to concentration of loads at the foundation level. This happens in reinforced concrete (RC) frame structures, where inclusion of concrete shear walls in between the columns is carried out as a retrofitting measure.
Seismic Design Aids for Nonlinear Pushover Analysis of Reinforced Concrete and Steel Bridges fills the need for a complete reference on pushover analysis for practicing engineers.
This technical reference covers the pushover analysis of reinforced concrete and steel bridges with confined and unconfined concrete column members of either circular.Seismic Behavior and Modeling of Reinforced Concrete Building Columns under Lateral Loads.
Research Scholar. Memet Metin Kose, Department of Civil, Environmental and Geodetic Engineering (Turkey) Halil Sezen, Faculty Mentor. Background Information.reinforced concrete (RC) members in the recent decades. As for seismic retrofit of RC highway bridge columns in Japan, FRP sheet is usually used to retrofit columns with premature termination of longitudinal reinforcements without enough development length at the midheight.
Figure 1 shows an example of RC bridge being under retrofitted with.