Strength of High Strength Concrete Columns Under Eccentric Compression

Strength of High Strength Concrete Columns Under Eccentric Compression PDF Author: R. H. Basappa Setty
Publisher:
ISBN:
Category : Columns, Concrete
Languages : en
Pages : 130

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Book Description
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.

Strength of High Strength Concrete Columns Under Eccentric Compression

Strength of High Strength Concrete Columns Under Eccentric Compression PDF Author: R. H. Basappa Setty
Publisher:
ISBN:
Category : Columns, Concrete
Languages : en
Pages : 130

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Book Description
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.

High Strength Concrete Columns Under Eccentric Compression

High Strength Concrete Columns Under Eccentric Compression PDF Author: N. A. Lloyd
Publisher:
ISBN:
Category : Columns, Concrete
Languages : en
Pages : 220

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Book Description


Advances in Organic Farming

Advances in Organic Farming PDF Author: Vijay Singh Meena
Publisher: Woodhead Publishing
ISBN: 0128223596
Category : Science
Languages : en
Pages : 272

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Book Description
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

Fundamentals of High-Performance Concrete

Fundamentals of High-Performance Concrete PDF Author: Edward G. Nawy
Publisher: John Wiley & Sons
ISBN: 9780471385554
Category : Technology & Engineering
Languages : en
Pages : 468

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Book Description
High performance concrete is a key element in virtually all-large construction projects, from tall office and residential buildings to bridges, tunnels and roadways. The fully updated Second Edition helps professionals to understand the performance capabilities of these construction materials when selecting the type of concrete to use for particular projects. The author is one of the worlds acknowledged experts on high performance concrete.

ACI 440. 2R-17 Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures

ACI 440. 2R-17 Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures PDF Author: ACI Committee 440
Publisher:
ISBN: 9781945487590
Category : Fiber-reinforced concrete
Languages : en
Pages : 110

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Book Description


Recent Advances in Structural Engineering

Recent Advances in Structural Engineering PDF Author:
Publisher: Universities Press
ISBN: 9788173714931
Category : Structural engineering
Languages : en
Pages : 412

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Book Description
This book contains state-of-the-art review articles on specific research areas in the civil engineering discipline-the areas include geotechnical engineering, hydraulics and water resources engineering, and structural engineering. The articles are written by invited authors who are currently active at the international level in their respective research fields.

Size Effect in Concrete Materials and Structures

Size Effect in Concrete Materials and Structures PDF Author: Xiuli Du
Publisher: Springer Nature
ISBN: 9813349433
Category : Technology & Engineering
Languages : en
Pages : 609

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Book Description
The present book gathers a large amount of the recent research results on this topic to provide a better understanding of the size effect by giving a quantitative description of the relationship between the properties of engineering concrete-making material (e.g. the nominal strength) and the corresponding structure size. To be precise, this is about to explore the new static and dynamic unified size effect laws for concrete materials, as well as size effect laws for concrete components. Besides presenting clear and accurate descriptions that further deepen our fundamental knowledge, this book provides additionally useful tools for the scientific design of concrete structures in practical engineering applications.

Composite Construction in Steel and Concrete IV

Composite Construction in Steel and Concrete IV PDF Author: Jerome F. Hajjar
Publisher:
ISBN: 9780784406168
Category : Building, Iron and steel
Languages : en
Pages : 0

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Book Description
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.

Advanced Concretes and Their Structural Applications

Advanced Concretes and Their Structural Applications PDF Author: Zhigang Zhang
Publisher: Frontiers Media SA
ISBN: 2832500579
Category : Technology & Engineering
Languages : en
Pages : 303

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Book Description


Continuous and Discontinuous Modelling of Fracture in Concrete Using FEM

Continuous and Discontinuous Modelling of Fracture in Concrete Using FEM PDF Author: Jacek Tejchman
Publisher: Springer Science & Business Media
ISBN: 3642284639
Category : Technology & Engineering
Languages : en
Pages : 417

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Book Description
The book analyzes a quasi-static fracture process in concrete and reinforced concrete by means of constitutive models formulated within continuum mechanics. A continuous and discontinuous modelling approach was used. Using a continuous approach, numerical analyses were performed using a finite element method and four different enhanced continuum models: isotropic elasto-plastic, isotropic damage and anisotropic smeared crack one. The models were equipped with a characteristic length of micro-structure by means of a non-local and a second-gradient theory. So they could properly describe the formation of localized zones with a certain thickness and spacing and a related deterministic size effect. Using a discontinuous FE approach, numerical results of cracks using a cohesive crack model and XFEM were presented which were also properly regularized. Finite element analyses were performed with concrete elements under monotonic uniaxial compression, uniaxial tension, bending and shear-extension. Concrete beams under cyclic loading were also simulated using a coupled elasto-plastic-damage approach. Numerical simulations were performed at macro- and meso-level of concrete. A stochastic and deterministic size effect was carefully investigated. In the case of reinforced concrete specimens, FE calculations were carried out with bars, slender and short beams, columns, corbels and tanks. Tensile and shear failure mechanisms were studied. Numerical results were compared with results from corresponding own and known in the scientific literature laboratory and full-scale tests.