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Book Behavior of Lightweight Confined Concrete Columns

Download or read book Behavior of Lightweight Confined Concrete Columns written by Sadiq Hussain and published by . This book was released on 1988 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Behavior of Confined Concrete Columns Under Axial Load and Flexure

Download or read book Behavior of Confined Concrete Columns Under Axial Load and Flexure written by Ching-Chung Yeh and published by . This book was released on 1988 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Failure of Plain and Spirally Reinforced Concrete in Compression

Download or read book The Failure of Plain and Spirally Reinforced Concrete in Compression written by Frank Erwin Richart and published by . This book was released on 1929 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Flexural Behavior of Lightweight Concrete Columns Under Seismic Conditions

Download or read book Flexural Behavior of Lightweight Concrete Columns Under Seismic Conditions written by Mervyn J. Kowalsky and published by . This book was released on 1996 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Strength and Ductility of Confined High strength Lightweight Aggregate Concrete Columns

Download or read book Strength and Ductility of Confined High strength Lightweight Aggregate Concrete Columns written by Karim Mohamed El-Dash and published by . This book was released on 1995 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Seismic Behavior of Lightweight Concrete Columns

Download or read book Seismic Behavior of Lightweight Concrete Columns written by Basile G. Rabbat and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Understanding the Confined Concrete Behavior on the Response of Hollow Bridge Columns

Download or read book Understanding the Confined Concrete Behavior on the Response of Hollow Bridge Columns written by Xiao Liang (M.S. in Structural Engineering) and published by . This book was released on 2015 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: In seismic design practice, hollow concrete columns offer an efficient alternative especially for tall bridge columns. The confinement in critical regions of these columns is not well understood and the confinement models developed for solid concrete sections are used to characterize these columns. This report identifies several shortcomings in current practice associated with hollow column design. Using experimental and analytical means, it is shown that the confined concrete behavior in hollow concrete columns is different from that established for solid sections. Recommendations to improve analysis and design of hollow columns are presented with experimental verification. Modification to alter the confinement models developed for solid sections and a design example are also provided.

Book Shear Behavior of Lightweight Concrete Columns Under Seismic Conditions

Download or read book Shear Behavior of Lightweight Concrete Columns Under Seismic Conditions written by M. J. Kowalsky and published by . This book was released on 1995 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is the first in a series of reports on the seismic performance of lightweight concrete bridge substructure elements. Through a discussion of experimental studies on two test units and analytical investigations, the shear capacity of lightweight concrete bridge columns subjected to cyclic loading is presented. Also presented in this report is a revised model for quantifying the contribution of transverse steel to shear strength that is applicable to both lightweight and normal weight concrete. An alternative method for the evaluation of shear deformation for design and assessment purposes is presented which is also applicable to lightweight and normal weight concrete members.

Book Behavior of Concrete Columns Under Various Confinement Effects

Download or read book Behavior of Concrete Columns Under Various Confinement Effects written by Ahmed Mohsen Abd El Fattah and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The analysis of concrete columns using unconfined concrete models is a well established practice. On the other hand, prediction of the actual ultimate capacity of confined concrete columns requires specialized nonlinear analysis. Modern codes and standards are introducing the need to perform extreme event analysis. There has been a number of studies that focused on the analysis and testing of concentric columns or cylinders. This case has the highest confinement utilization since the entire section is under confined compression. On the other hand, the augmentation of compressive strength and ductility due to full axial confinement is not applicable to pure bending and combined bending and axial load cases simply because the area of effective confined concrete in compression is reduced. The higher eccentricity causes smaller confined concrete region in compression yielding smaller increase in strength and ductility of concrete. Accordingly, the ultimate confined strength is gradually reduced from the fully confined value f[subscript]c[subscript]c (at zero eccentricity) to the unconfined value f[same as f1][subscript]c (at infinite eccentricity) as a function of the compression area to total area ratio. The higher the eccentricity the smaller the confined concrete compression zone. This paradigm is used to implement adaptive eccentric model utilizing the well known Mander Model and Lam and Teng Model. Generalization of the moment of area approach is utilized based on proportional loading, finite layer procedure and the secant stiffness approach, in an iterative incremental numerical model to achieve equilibrium points of P-[epsilon] and M-j response up to failure. This numerical analysis is adaptod to asses the confining effect in circular cross sectional columns confined with FRP and conventional lateral steel together; concrete filled steel tube (CFST) circular columns and rectangular columns confined with conventional lateral steel. This model is validated against experimental data found in literature. The comparison shows good correlation. Finally computer software is developed based on the non-linear numerical analysis. The software is equipped with an elegant graphics interface that assimilates input data, detail drawings, capacity diagrams and demand point mapping in a single sheet. Options for preliminary design, section and reinforcement selection are seamlessly integrated as well. The software generates 2D interaction diagrams for circular columns, 3D failure surface for rectangular columns and allows the user to determine the 2D interaction diagrams for any angle [alpha] between the x-axis and the resultant moment. Improvements to KDOT Bridge Design Manual using this software with reference to AASHTO LRFD are made. This study is limited to stub columns.

Book Stress strain Behavior of FRP confined Concrete Column

Download or read book Stress strain Behavior of FRP confined Concrete Column written by and published by . This book was released on 2014 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: