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Behaviour Of Confined High Strength Concrete Column Subjected To Concentric And Eccentric Loads
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Book Synopsis Behaviour of Confined High Strength Concrete Column Subjected to Concentric and Eccentric Loads by : Yu Ming Song
Download or read book Behaviour of Confined High Strength Concrete Column Subjected to Concentric and Eccentric Loads written by Yu Ming Song and published by . This book was released on 2012 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Behavior of High-Strength Concrete Columns by :
Download or read book Behavior of High-Strength Concrete Columns written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of high-strength concrete for bridges and high-rise buildings become popular due to development in concrete technology and availability of various types of mineral and chemical admixtures. High-strength concrete could lead to smaller member sizes for compression members and therefore provide considerable savings associated with material costs and reduction of dead loads. However, Most of the current design codes, such as AASHTO-LRFD Bridge Specifications, are still based on tests conducted using normal-strength concrete. Many studies indicate that the behavior of columns with high-strength concrete is different from that of normal-strength concrete. The experimental phase of this investigation consists of thirty two rectangular and twenty four circular columns subjected to concentric and eccentric loading conditions to investigate the behavior of high-strength concrete columns. The main variables considered in this study were concrete strength ranging from 7.9 to 16.5 ksi, shape of cross section, and longitudinal and transverse reinforcement ratios. Using the test results of this study and other researches in literature, the dissertation provides design equation to predict the capacity of high-strength concrete columns with tie and spiral reinforcements subjected to concentric and eccentric loading conditions up to 18 ksi. The research also proposes a new stress-strain relationship of high-strength concrete confined with spiral reinforcements.
Book Synopsis Behaviour of High Strength Concrete Columns Under Axial Load and Uniaxial Bending by : Natalie Anne Lloyd
Download or read book Behaviour of High Strength Concrete Columns Under Axial Load and Uniaxial Bending written by Natalie Anne Lloyd and published by . This book was released on 1994 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to significant economic and structural advantages associated with the use of high strength concrete in compression members, the application of high strength concrete in columns and core walls is increasing. The advantages of using high strength concrete are well documented. Utilisation of high strength concrete leads to a reduction in column size. However, this results in an increase in slenderness of columns which would otherwise be stocky when built using low strength concrete. In addition, columns are rarely designed for pure axial load yet most research to date has focussed on high strength colurnns subject to concentric compression. Very limited data is available on columns subject to eccentric compression. The present research therefore focussed on slender columns subject to eccentric compression.
Book Synopsis Behavior of High-strength Concrete Columns Confined by Rectangular Ties Under Concentric Loading by : Daniel Cusson
Download or read book Behavior of High-strength Concrete Columns Confined by Rectangular Ties Under Concentric Loading written by Daniel Cusson and published by . This book was released on 1993 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Polymer Composites for Structural Applications in Construction by : L C Hollaway
Download or read book Advanced Polymer Composites for Structural Applications in Construction written by L C Hollaway and published by Elsevier. This book was released on 2004-04-22 with total page 785 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past three decades advanced polymer composites have emerged as an attractive construction material for new structures and the strengthening/rehabilitation of existing buildings and bridges. The techniques associated with the technology, analysis and design of polymer composites in construction are continually being researched and the progress made with this exciting material will continue at an ever- increasing rate to meet the demands of the construction industry. This volume of proceedings is from the Second ACIC 2004 International Conference, which focused on the application and further exploitation of advanced composites in construction. The conference allowed practising engineers, asset managers, researchers and representative of regulatory bodies to promote the active exchange of scientific and technical information on the rapidly changing scene of advanced composites in construction. This volume focuses on the presentation of new concepts, techniques and case studies, which will lead to greater exploitation of advanced polymer composites and FRP materials for civil engineering infrastructure, rehabilitation and renewal. Presents new concepts, techniques and case studies
Book Synopsis Behavior of High-strength Concrete Columns by : Sungjoong Kim
Download or read book Behavior of High-strength Concrete Columns written by Sungjoong Kim and published by . This book was released on 2007 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: Rectangular, Column, High-strength concrete, Eccentric, Concentric, Circular.
Book Synopsis Strength of High Strength Concrete Columns Under Eccentric Compression by : R. H. Basappa Setty
Download or read book Strength of High Strength Concrete Columns Under Eccentric Compression written by R. H. Basappa Setty and published by . This book was released on 1995 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research work involved a study of behaviour and strength of eccentrically loaded High Strength Concrete columns. The research comprised experimental and analytical components. With regard to experimental work, twelve columns were manufactured and tested to failure. All columns were rectangular in cross-section with 300 mm x 100 mm as dimensions. The test specimens were loaded about the minor axis. The ratio of longitudinal reinforcement was either 1.47% (4 - 12 mm diameter bars) or 2.2% (6 - 12 mm diameter bars). The lateral reinforcement was in the form of rectangular closed ties made of 6 mm wires (W6). The spacing of ties was generally 50 mm, but, was decreased to 30 mm, at either ends to avoid premature failure.
Book Synopsis Behaviour of Square High-strength Concrete Columns Under Load Reversals by : Wojciech Lipien
Download or read book Behaviour of Square High-strength Concrete Columns Under Load Reversals written by Wojciech Lipien and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Strength and deformation characteristics of 10 square confined high-strength concrete columns were investigated. Properties of columns were selected to allow assessment of the importance of confinement parameters for high-strength concrete columns. The specimens were tested under constant axial compression and incrementally increasing lateral deformation reversals, simulating seismic action. The data indicate that high-strength concrete columns can be confined to behave in a ductile manner. The volumetric ratio of confinement reinforcement required for high strength concrete columns is higher than that required for normal-strength concrete columns, although the spacing requirement does not appear to be a function of concrete strength. Columns confined with higher grade lateral reinforcement require lower volumetric ratios of confinement steel. The arrangement of lateral reinforcement plays an important role on improving deformability. Columns confined with well-distributed longitudinal reinforcement, laterally supported by transverse reinforcement show improved deformability. The volumetric ratio and spacing limitations for these columns need not be as stringent as those required for less favourable steel arrangements. Axial compression reduces column ductility. An analytical investigation was also conducted to assess the applicability of conventional analyses techniques used for normal-strength concrete columns to those made with high-strength concrete. The applicability of a confinement model, based on test data under concentric compression, was verified against experimental data. The results indicate that the confinement model can be employed to columns under combined bending and axial load. Furthermore, moment-curvature relationships obtained by plane section analysis, moment-rotation and force-displacement relationships obtained by integration of curvatures and consideration of column plastic hinging region, as usually done for columns with normal-strength concrete, produce fairly accurate representation of experimentally observed force-deformation relationships. (Abstract shortened by UMI.).
Book Synopsis Behaviour of Confined High Strength Concrete Columns by : Jing Liu
Download or read book Behaviour of Confined High Strength Concrete Columns written by Jing Liu and published by . This book was released on 1998 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FRP written by J. G. Teng and published by John Wiley & Sons. This book was released on 2002 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fibre-reinforced polymer (FRP) composites are used to strengthen reinforced concrete (RC) structures. A large amount of research now exists on this. This book brings together all existing research into one volume.
Book Synopsis Confinement of Normal and High-strength Concrete Columns by : Salim R. Razvi
Download or read book Confinement of Normal and High-strength Concrete Columns written by Salim R. Razvi and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive research project was conducted to investigate the behaviour and design of earthquake resistant normal-strength and high-strength concrete columns. The project included three essential components; testing of full size columns, development of an analytical model, and development of a design procedure. The experimental program consisted of material research and structural testing. The first phase was designed to study mechanical properties of high-strength concrete, which involved testing of a large number of concrete cylinders. The second phase was designed to investigate performance of confined normal and high-strength concrete columns under concentric compression. The experimental program included tests of 46 full size square and circular columns, with concrete strength ranging between 60 MPa and 124 MPa. The parameters considered included; cross-sectional shape (circular and square), volumetric ratio and spacing of transverse reinforcement, distribution of longitudinal reinforcement and resulting tie arrangement, yield strength of transverse reinforcement, concrete compressive strength, influence of longitudinal reinforcement in circular columns, and type of circular reinforcement (continuous spiral and circular hoops). The analytical component of the research program involved development of a mathematical model to represent stress-strain relationship of confined concrete. This was done in two steps. The first step included formulation of the relationship for normal strength concrete, for which extensive test data was available. The second step involved modification of the model for high-strength concrete. An extensive literature survey was first conducted, followed by evaluation of previous test data. This information was used, along with the results of the experimental phase of this investigation to develop a generalized cofinement model for normal-strength and high-strength concrete columns. The analytical and experimental research was used in developing a design procedure for confinement of earthquake resistant concrete columns. The procedure includes all the relevant parameters of confinement that have been observed to be important in column tests, and relates the design variables to deformation capacities. A displacement based design methodology was developed, where the lateral drift demand is a design parameter. This approach leads to different confinement steel requirements for columns with different deformability demands, an approach currently lacking in practice. Furthermore, the reinforcement arrangement is recognized as a design parameter, allowing lower volumetric ratio of confinement reinforcement for efficient arrangements. This may result in significant savings in steel, eliminating the common problem of steel congestion in earthquake resistant columns. (Abstract shortened by UMI.).
Book Synopsis Advances in Organic Farming by : Vijay Singh Meena
Download or read book Advances in Organic Farming written by Vijay Singh Meena and published by Woodhead Publishing. This book was released on 2021-08-10 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Organic Farming: Agronomic Soil Management Practices focuses on the integrated interactions between soil-plant-microbe-environment elements in a functioning ecosystem. It explains sustainable nutrient management under organic farming and agriculture, with chapters focusing on the role of nutrient management in sustaining global ecosystems, the remediation of polluted soils, conservation practices, degradation of pollutants, biofertilizers and biopesticides, critical biogeochemical cycles, potential responses for current and impending environmental change, and other critical factors. Organic farming is both challenging and exciting, as its practice of “feeding the soil, not the plant provides opportunity to better understand why some growing methods are preferred over others. In the simplest terms, organic growing is based on maintaining a living soil with a diverse population of micro and macro soil organisms. Organic matter (OM) is maintained in the soil through the addition of compost, animal manure, green manures and the avoidance of excess mechanization. Presents a comprehensive overview of recent advances and new developments in the field OF research within a relevant theoretical framework Highlights the scope of the inexpensive and improved management practices Focuses on the role of nutrient management in sustaining the ecosystems
Book Synopsis The Behavior of FRP-confined Short Concrete Columns Subjected to Eccentric Loading by : Hei-long Wong
Download or read book The Behavior of FRP-confined Short Concrete Columns Subjected to Eccentric Loading written by Hei-long Wong and published by . This book was released on 2015 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flexural Behaviour of Confined High-strength Concrete Columns by : Ngoc Ba Nguyen
Download or read book Flexural Behaviour of Confined High-strength Concrete Columns written by Ngoc Ba Nguyen and published by . This book was released on 2004 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fibre-reinforced Polymer Reinforcement For Concrete Structures (In 2 Volumes) - Proceedings Of The Sixth International Symposium On Frp Reinforcement For Concrete Structures (Frprcs-6) by : Kiang Hwee Tan
Download or read book Fibre-reinforced Polymer Reinforcement For Concrete Structures (In 2 Volumes) - Proceedings Of The Sixth International Symposium On Frp Reinforcement For Concrete Structures (Frprcs-6) written by Kiang Hwee Tan and published by World Scientific. This book was released on 2003-06-20 with total page 1526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fibre-reinforced polymer (FRP) reinforcement has been used in construction as either internal or external reinforcement for concrete structures in the past decade. This book provides the latest research findings related to the development, design and application of FRP reinforcement in new construction and rehabilitation works. The topics include FRP properties and bond behaviour, externally bonded reinforcement for flexure, shear and confinement, FRP structural shapes, durability, member behaviour under sustained loads, fatigue loads and blast loads, prestressed FRP tendons, structural strengthening applications, case studies, and codes and standards.
Book Synopsis Behaviour of Tied High Strength Concrete Columns Loaded in Concentric Compression by : Jing Liu
Download or read book Behaviour of Tied High Strength Concrete Columns Loaded in Concentric Compression written by Jing Liu and published by . This book was released on 1998 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fibre-Reinforced Polymer Reinforcement for Concrete Structures by : Kiang Hwee Tan
Download or read book Fibre-Reinforced Polymer Reinforcement for Concrete Structures written by Kiang Hwee Tan and published by World Scientific. This book was released on 2003 with total page 1526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fibre-reinforced polymer (FRP) reinforcement has been used in construction as either internal or external reinforcement for concrete structures in the past decade. This book provides the latest research findings related to the development, design and application of FRP reinforcement in new construction and rehabilitation works. The topics include FRP properties and bond behaviour, externally bonded reinforcement for flexure, shear and confinement, FRP structural shapes, durability, member behaviour under sustained loads, fatigue loads and blast loads, prestressed FRP tendons, structural strengthening applications, case studies, and codes and standards.
