Author: Anthony J. CalderonePublisher:
ISBN:
Category : Bridges, Concrete
Languages : en
Pages : 164
Book Description
Behavior of Reinforced Concrete Bridge Columns Having Varying Aspect Ratios and Varying Lengths of Confinement
Author: Anthony J. CalderonePublisher:
ISBN:
Category : Bridges, Concrete
Languages : en
Pages : 164
Book Description
The Effect of Load History on Reinforced Concrete Bridge Column Behavior
Author: Jason GoodnightPublisher:
ISBN:
Category : Bridge design
Languages : en
Pages : 343
Book Description
To satisfy the aims of performance based design, levels of damage which interrupt the serviceability of the structure or require more invasive repair techniques must be related to engineering criteria. In this report, the influence of displacement history on performance limit states, the relationship between strain and displacement, and the spread of plasticity in reinforced concrete structures is explored. An experimental study is underway to assess the performance of thirty circular, well-confined, bridge columns with varying lateral displacement history, transverse reinforcement detailing, axial load, aspect ratio, and longitudinal steel content. Eight of these columns, with similar geometry and detailing, were subjected to various unidirectional displacement histories including standardized laboratory cyclic loading and recreations of the displacement responses obtained from non-linear time history analysis of multiple earthquakes with distinct characteristics. Longitudinal reinforcing bars were instrumented to obtain strain hysteresis, vertical strain profiles, cross section curvatures, curvature distributions, and fixed-end rotations attributable to strain penetration. Results indicate that bar buckling was influenced by load history, but the relationship between strain and displacement along the envelope curve was not. The main impact of load history on bar buckling is its influence on accumulated strains within the longitudinal reinforcement and transverse steel.
Seismic Performance of Well-confined Concrete Bridge Columns
Author: Dawn Ellen LehmanPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 330
Book Description
Seismic Performance of Circular Reinforced Concrete Columns Under Varying Axial Load
Author: Gianmario BenzoniPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 214
Book Description
The behavior of four circular reinforced concrete bridge columns, with different axial load regimes, is investigated. The first unit was tested under constant compressive axial load corresponding to an axial load ratio of 0.35. The second specimen was subjected to a constant tensile axial force equivalent to 0.087 axial load ratio. Two specimens were tested under varying regime of axial load, ranging between the two previous load limits, in order to simulate realistic seismic conditions of outer columns of multi-column bents. Extended comparison between experimental and predicted shear response, from different current equations, is provided.
Proceedings of 17th Symposium on Earthquake Engineering (Vol. 2)
Author: Manish ShrikhandePublisher: Springer Nature
ISBN: 9819916046
Category : Science
Languages : en
Pages : 823
Book Description
This book presents select proceedings of the 17th Symposium on Earthquake Engineering organized by the Department of Earthquake Engineering, Indian Institute of Technology Roorkee. The topics covered in the proceedings include engineering seismology and seismotectonics, earthquake hazard assessment, seismic microzonation and urban planning, dynamic properties of soils and ground response, ground improvement techniques for seismic hazards, computational soil dynamics, dynamic soil–structure interaction, codal provisions on earthquake-resistant design, seismic evaluation and retrofitting of structures, earthquake disaster mitigation and management, and many more. This book also discusses relevant issues related to earthquakes, such as human response and socioeconomic matters, post-earthquake rehabilitation, earthquake engineering education, public awareness, participation and enforcement of building safety laws, and earthquake prediction and early warning system. This book is a valuable reference for researchers and professionals working in the area of earthquake engineering.
Effects of Confinement and Flares on the Seismic Performance of Reinforced Concrete Bridge Columns
Author: Nadim I. WehbePublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 432
Book Description
Performance of Circular Reinforced Concrete Bridge Columns Under Bidirectional Earthquake Loading
Author: Mahmoud M. HachemPublisher:
ISBN:
Category : Bridges, Concrete
Languages : en
Pages : 496
Book Description
Describes the dynamic testing of 4 circular reinforced concrete bridge columns. The specimens were divided into 2 pairs, with each pair subjected to a different ground motion. Within each pair, one specimen was subjected to one component of the ground motion, while the other was subjected to 2 components. Two analytical studies were carried out for a wide array of column heights, diameters, and axial load intensities. The columns were subjected to large suites of ground motions scaled to match on average the design response spectrum.
Proceedings of the Canadian Society of Civil Engineering Annual Conference 2022
Author: Rishi GuptaPublisher: Springer Nature
ISBN: 3031340272
Category :
Languages : en
Pages : 1270
Book Description
Report
Author: Publisher:
ISBN:
Category : Earthquake engineering
Languages : en
Pages : 396
Book Description
Author: