Author: Bent Steen AndreasenPublisher:
ISBN: 9788777400186
Category :
Languages : en
Pages : 70
Book Description
Anchorage Tests with Ribbed Reinforcing Bars in More Than One Layer at a Beam Support
Author: Bent Steen AndreasenPublisher:
ISBN: 9788777400186
Category :
Languages : en
Pages : 70
Book Description
Anchorage Tests with Ribbed Reinforcing Bars in More Than One Layer at a Beam Support
Author: Publisher:
ISBN: 9788777400001
Category : Civil engineering
Languages : da
Pages : 25
Book Description
Anchorage Tests with Deformed Reinforcing Bars in More Than One Layer at a Beam Support
Author: B.S. AndreasenLimit Analysis and Concrete Plasticity, Second Edition
Author: M.P. NielsenPublisher: CRC Press
ISBN: 9780849391262
Category : Technology & Engineering
Languages : en
Pages : 944
Book Description
Limit Analysis and Concrete Plasticity, Second Edition covers the most relevant topics related to plastic design methods, providing a reliable and superior alternative to existing empirical methods. Fully updated and containing more extensive coverage, this second edition includes numerical methods and computer code for solving problems, incorporating methods into Eurocode 2 - the common concrete standard for the whole of Europe. This edition: Emphasizes practical design, treating almost all the elementary concrete mechanics problems in such a way that the solutions may be directly applied by the designer Details the fundamental problems associated with so-called effectiveness factors Covers many new solutions to specific problems, including concentrated forces, shear walls and deep beams, beams with normal forces and torsional moments, and solutions dealing with membrane effects in slabs Simplifies the treatment of shear in beams and slabs without shear reinforcement or with a modicum of shear reinforcement Extends the chapters on joints and bond strength, showing how plastic theory offers reasonable solutions for most structural problems in reinforced concrete Limit Analysis and Concrete Plasticity explains the basic principles of plasticity theory and its application to the design of reinforced and prestressed concrete structures, providing a thorough understanding of the subject, rather than simply applying current design codes. This scientific understanding of the subject enables the design student or engineer to solve problems more effectively and safely.
Development of Bundled Reinforcing Steel
Author: Publisher:
ISBN:
Category : Reinforced concrete construction
Languages : en
Pages : 122
Book Description
Nordic Concrete Research
Author: Anchorage of Large-diameter Reinforcing Bars Grouted Into Ducts
Author: Publisher:
ISBN:
Category : Anchorage (Structural engineering)
Languages : en
Pages : 160
Book Description
The use of a few large-diameter reinforcing bars for the construction of precast concrete bridge bents allows simplified construction by reducing the number of alignments to be made in the field. These bars are grouted into ducts in a precast concrete cap beam. In the proposed precast concrete substructure system, the grouted bars carry tensile forces across the joint between the column and cap beam. This joint is the yielding element in the structural system, and it is crucial to the performance of the structure that the bars yield before other failure mechanisms, including bond failure, occur. However, the cap beam is typically insufficient to anchor the bar, as the depth of the beam is substantially less than the American Association of State Highway and Transportation Officials (AASHTO) bridge code allows. For this project, 17 pullout tests were conducted to determine the bond characteristics and development length of large-diameter bars grouted into ducts. The bars tested ranged in size from #8 to #18. Pullout tests conducted with embedment lengths of at least six bar diameters yielded the reinforcing bar, while the test conducted with an embedment length of 14 bar diameters resulted in bar fracture. The tests and subsequent analysis showed that the bond of these grouted connections is significantly better than the bond of bars cast directly into concrete. The development lengths needed to fully anchor the bar are therefore within the depth available in the cap beam.
End Anchorage at Simple Supports in Reinforced Concrete
Author: Amin RizgarPublisher: LAP Lambert Academic Publishing
ISBN: 9783659765414
Category :
Languages : en
Pages : 536
Book Description
This book reports research on end anchorage at simple supports of reinforced concrete members and treats both straight bars and bars with 90 and 180 bends. The most significant characteristics of straight anchorages at simple supports are their generally short lengths and the presence of transverse pressure from the support reactions. Published work in this area is rather limited. Sixty five tests were made on end anchorages in simply supported beams. The bars had straight anchorages in thirty seven of the tests, 90 bends in fifteen and 180 hooks in thirteen. The main variables were concrete cover, anchorage length, transverse pressure and internal diameters of bends. The results of these tests, together with others from the literature are used to develop expressions for anchorage capacities. Bends and hooks are widely treated in design codes, but their rules appear very arbitrary and seem to lack published substantiation. The approach adopted here is essentially empirical.
Anchorage of Ribbed Reinforcing Bars
Author: Bent Steen AndreasenPublisher:
ISBN: 9788777400179
Category :
Languages : en
Pages : 256
Book Description
Structural Use of Concrete
Author: British Standards InstitutionPublisher:
ISBN: 9780580262081
Category : Concrete
Languages : en
Pages : 163
Book Description
Concretes, Construction materials, Buildings, Structures, Structural design, Loading, Reinforced concrete, Strength of materials, Framed structures, Beams, Slabs, Structural members, Shear stress, Columns, Walls, Stability, Stairs, Foundations, Reinforcement, Prestressed concrete, Precast concrete, Composite construction, Composition, Durability, Concrete mixes, Curing (concrete), Formwork, Finishes, Movement joints, Grouting