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Seismic Performance Of Circular Concrete Filled Steel Tube Columns For Accelerated Bridge Construction
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Book Synopsis Seismic Performance of Circular Concrete Filled Steel Tube Columns for Accelerated Bridge Construction by : Catherine Tucker
Download or read book Seismic Performance of Circular Concrete Filled Steel Tube Columns for Accelerated Bridge Construction written by Catherine Tucker and published by . This book was released on 2014 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Circular Concrete Filled Steel Tube Geometry on Seismic Performance by : Kenneth Austin O'Neill
Download or read book Experimental Investigation of Circular Concrete Filled Steel Tube Geometry on Seismic Performance written by Kenneth Austin O'Neill and published by . This book was released on 2011 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cyclic Testing of Concrete-filled Circular Steel Tube Bridge Columns Having Encased Fixed Based Detail by : Julia Marson
Download or read book Cyclic Testing of Concrete-filled Circular Steel Tube Bridge Columns Having Encased Fixed Based Detail written by Julia Marson and published by . This book was released on 2000 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of Accelerated Bridge Construction Connections in Moderate-to-High Seismic Regions by :
Download or read book Application of Accelerated Bridge Construction Connections in Moderate-to-High Seismic Regions written by and published by Transportation Research Board. This book was released on 2011 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB’s National Cooperative Highway Research Program (NCHRP) Report 698: Application of Accelerated Bridge Construction Connections in Moderate-to-High Seismic Regions evaluates the performance of connection details for bridge members in accelerated bridge construction in medium-to-high seismic regions and offers suggestions for further research.
Book Synopsis Seismic Performance of Precast Concrete Dual-shell Steel Columns for Accelerated Bridge Construction by : Gabriele Guerrini
Download or read book Seismic Performance of Precast Concrete Dual-shell Steel Columns for Accelerated Bridge Construction written by Gabriele Guerrini and published by . This book was released on 2014 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study presents an innovative bridge column technology for application in seismic regions. The proposed technology combines a precast post-tensioned composite steel-concrete hollow-core column with supplemental energy dissipation, in a way to reduce on-site construction burdens and minimize earthquake-induced residual deformations, damage, and associated repair costs. The column consists of two steel cylindrical shells, with high-performance concrete cast in between. Both shells act as permanent formwork; the outer shell substitutes the longitudinal and transverse reinforcement, as it works in composite action with the concrete, whereas the inner shell removes unnecessary concrete volume from the column, prevents concrete implosion, and prevents buckling of energy dissipating dowels when embedded in the concrete. Large inelastic rotations can be accommodated at the end joints with minimal structural damage, since gaps are allowed to open at these locations and to close upon load reversal. Longitudinal post-tensioned high-strength steel threaded bars, designed to respond elastically, in combination with gravity forces ensure self-centering behavior. Internal or external steel devices provide energy dissipation by axial yielding. This dissertation reviews the main principles and requirements for the design of these columns. The experimental findings from two quasi-static reversed cyclic tests are then presented, and numerical simulations of the experimental response are proposed.
Book Synopsis Concrete-filled Tubular Members and Connections by : Xiao-Ling Zhao
Download or read book Concrete-filled Tubular Members and Connections written by Xiao-Ling Zhao and published by CRC Press. This book was released on 2010-07-27 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using steel and concrete together utilizes the beneficial material properties of both elements. Concrete filled steel tubes represent a good example of a concrete - steel composite structure, and are particularly useful as columns in high rise buildings and bridge piers. They can be used in a range of fields, from civil and industrial construction
Book Synopsis Seismic Performance of Circular Reinforced Concrete Bridge Columns Under Bidirectional Earthquake Loading by : Mahmoud Mohamad Hachem
Download or read book Seismic Performance of Circular Reinforced Concrete Bridge Columns Under Bidirectional Earthquake Loading written by Mahmoud Mohamad Hachem and published by . This book was released on 2002 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Long-term and Seismic Performance of Concrete-filled Steel Tube Columns with Conventional and High-volume Supplementary Cementitous Materials Concrete by : Árni Kristinn Gunnarsson
Download or read book Long-term and Seismic Performance of Concrete-filled Steel Tube Columns with Conventional and High-volume Supplementary Cementitous Materials Concrete written by Árni Kristinn Gunnarsson and published by . This book was released on 2011 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Next Generation of Bridge Columns for Accelerated Bridge Construction in High Seismic Zones by : Mostafa Tazarv
Download or read book Next Generation of Bridge Columns for Accelerated Bridge Construction in High Seismic Zones written by Mostafa Tazarv and published by . This book was released on 2014 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Longitudinal bar debonding allowed spread of yielding and prevented premature failure of reinforcements in UHPC-filled duct connections and grouted coupler column pedestal. The SMA-reinforced ECC column showed superior seismic performance compared to a conventional column in which the plastic hinge damage was limited to only ECC cover spalling even under 12% drift ratio cycles. The column residual displacements were 79% lower than CIP residual displacements on average due to the superelastic NiTi SMA longitudinal reinforcement, and higher base shear capacity and higher displacement capacity were observed. The analytical modeling methods were simple and sufficiently accurate for general design and analyses of precast components proposed in the present study. The proposed symmetrical material model for reinforcing NiTi superelastic SMA was found to be a viable alternative to the more complex asymmetrical model.
Book Synopsis Seismic Response of Precast Bridge Columns with Energy Dissipating Joints by : Sarira Motaref
Download or read book Seismic Response of Precast Bridge Columns with Energy Dissipating Joints written by Sarira Motaref and published by . This book was released on 2011 with total page 707 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cyclic Testing of Concrete-filled Circular Steel Tube Bridge Columns Having Encased Fixed Based Detail by : Julia Marson
Download or read book Cyclic Testing of Concrete-filled Circular Steel Tube Bridge Columns Having Encased Fixed Based Detail written by Julia Marson and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismic Performance of Circular Reinforced Concrete Bridge Columns Constructed with Grade 80 Reinforcement by : David Trejo
Download or read book Seismic Performance of Circular Reinforced Concrete Bridge Columns Constructed with Grade 80 Reinforcement written by David Trejo and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This project assessed the use of ASTM A706 Grade 80 reinforcing bars in reinforced concrete columns. Grade 80 is not currently allowed in reinforced concrete columns due to lack of information on the material characteristics and column performance. Six half-scale, circular columns were tested: three constructed with Grade 60 reinforcement and three constructed with Grade 80 reinforcement. Designs followed standard design methodologies used by State Highway Agencies (including AASHTO). Results indicate that columns constructed with Grade 80 reinforcement performed similar to columns constructed with conventional ASTM A706 Grade 60 reinforcement. Computational modeling was performed using OpenSees for all six columns. Results indicate that the columns constructed with Grade 80 reinforcement achieved similar resistance and displacement and curvature ductility values when compared with the reference columns constructed with Grade 60 reinforcement. The columns constructed with Grade 60 reinforcement showed larger hysteretic energy dissipation than the columns constructed with Grade 80 reinforcement.
Book Synopsis Further Investigation of a New RC Slab-column Connection for Improved Seismic Performance of Multi-story Buildings by : Austin Ryan Anderson
Download or read book Further Investigation of a New RC Slab-column Connection for Improved Seismic Performance of Multi-story Buildings written by Austin Ryan Anderson and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concrete Filled Steel Tube (CFST) columns have several advantages over reinforced concrete columns in that: (1) the steel tube provides confinement of the concrete and reduces damage to the concrete core, (2) they possess very high shear capacities, (3) the steel tube is placed at the optimum location for flexural resistance, and (4) they sustain large drift demands without damage. CFSTs also accelerate construction since: (1) the steel tube acts as permanent formwork, (2) in a slab-column system, the columns and slabs may be cast simultaneously, (3) most of the internal reinforcement can be eliminated. Previously an experimental program was undertaken to investigate a proposed connection for use in flat-plate construction. The connection consists of steel rings on either side of the column with post-tensioned bolts to connect the rings and provide active confinement to the slab. The forces are transferred from the upper column to the lower column through reinforcement welded to the inside of the tube of the lower column. The ring also increases the critical perimeter for shear. A four-specimen program investigated the impact of the following design variables: (1) ring size, (2) number of bolts within the ring flange, and (3) bolts outside of the ring. A reference specimen using conventional stud-rail detailing was built. This experimental program aimed to further that research by investigating the effect of slab depth on the connection. In addition, two full-scale push-through tests were conducted to better understand the two-way shear behavior of the proposed connection. The conventional stud-rail connection sustained damage at low drift levels, which resulted in loss of strength. This behavior compromises the integrity and resilience of flat-plate buildings. The new connection provides drift capacities of 4% or greater before strength loss and mitigates damage, meeting the structural objective of integrity and resilience after a large seismic event. The research suggests that the ring dimension depends on both the column size and thickness of the slab. Test results showed better behavior with two rows of bolts on the ring flange. Although bolts outside the ring are beneficial, this detail was deemed impractical for new construction but may be viable for increasing shear capacity in retrofit design. Two-way shear strength resulted in a higher capacity for the connection with the larger ring flange and that ACI predictions of capacity were conservative.
Book Synopsis Behavior of High Strength Concrete Filled Circular Steel Tube Beam-columns by : Farid Alfawakhiri
Download or read book Behavior of High Strength Concrete Filled Circular Steel Tube Beam-columns written by Farid Alfawakhiri and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Concrete-Filled Stainless Steel Tubular Columns by : Vipulkumar Patel
Download or read book Concrete-Filled Stainless Steel Tubular Columns written by Vipulkumar Patel and published by CRC Press. This book was released on 2018-12-07 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concrete-filled stainless steel tubular (CFSST) columns are increasingly used in modern composite construction due to their high strength, high ductility, high corrosion resistance, high durability and aesthetics and ease of maintenance. Thin-walled CFSST columns are characterized by the different strain-hardening behavior of stainless steel in tension and in compression, local buckling of stainless steel tubes and concrete confinement. Design codes and numerical models often overestimate or underestimate the ultimate strengths of CFSST columns. This book presents accurate and efficient computational models for the nonlinear inelastic analysis and design of CFSST short and slender columns under axial load and biaxial bending. The effects of different strain-hardening characteristics of stainless steel in tension and in compression, progressive local and post-local buckling of stainless steel tubes and concrete confinement are taken into account in the computational models. The numerical models simulate the axial load-strain behavior, moment-curvature curves, axial load-deflection responses and axial load-moment strength interaction diagrams of CFSST columns. The book describes the mathematical formulations, computational procedures and model verifications for circular and rectangular CFSST short and slender columns. The behavior of CFSST columns under various loading conditions is demonstrated by numerous numerical examples. This book is written for practising structural and civil engineers, academic researchers and graduate students in civil engineering who are interested in the latest computational techniques and design methods for CFSST columns.
Book Synopsis Composite Construction in Steel and Concrete IV by : Jerome F. Hajjar
Download or read book Composite Construction in Steel and Concrete IV written by Jerome F. Hajjar and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection contains 85 papers presented at the Composite Construction in Steel and Concrete IV Conference, held in Banff, Alberta, Canada, May 28-June 2, 2000.
Book Synopsis Seismic Performance of Steel Moment Frame Office Buildings with Square Concrete-filled Steel Tube Columns in the Gravity Framing as a Secondary Lateral Force Resisting System by : Nipun Pakwan
Download or read book Seismic Performance of Steel Moment Frame Office Buildings with Square Concrete-filled Steel Tube Columns in the Gravity Framing as a Secondary Lateral Force Resisting System written by Nipun Pakwan and published by . This book was released on 2018 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: A dual lateral-force resisting system consisting of a primary lateral-force resisting system and secondary concrete-filled steel tube (CFT) columns placed in the gravity framing is presented in this thesis. Dual lateral-force resisting systems consisting of moment frames acting with a secondary system are advantageous because the dual system explicitly provides increased redundancy, added safety against collapse, and added resistance to damage, compared to single lateral-force resisting systems. The dual CFT system concept explored in this study relies on the primary lateral-force resisting system to supply the main lateral strength, while additional lateral strength and robustness is provided by the CFT columns. To explore the viability of the concept, the predicted seismic performance of 1-story, 2-story, and 4-story office conventional buildings, with perimeter steel moment frames and wide-flange gravity columns was compared to the performance of same buildings but employing square HSS columns filled with unreinforced concrete. The analyses predicted that, compared to buildings with the wide-flange columns, buildings with the dual CFT system were 20% to 83% less susceptible to seismic collapse, depending on the strength and ductility of the primary moment frame, the orientation of the gravity columns, the number of stories. Using high-strength, thick, or slightly large CFT columns did not significantly improve collapse safety. Buildings with dual CFT system generally had improved seismic performance, depending on the moment frame design, the number of stories, and the intensity of the ground shaking. Buildings with dual CFT system had up to 45% lower repair costs, up to 64% shorter repair time, and a lower probability that the building would be deemed unsafe.
