Download or read book Improving the Development Characteristics of Steel Reinforcing Bars written by Emmanuel Kwame Idun and published by . This book was released on 1995 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Improving Development Characteristics of Reinforcing Bars written by Civil Engineering Research Foundation and published by American Society of Civil Engineers. This book was released on 1994 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the development and implications of a new concrete reinforcing bar with significantly improved bond strength.

Download or read book ACI Structural Journal written by and published by . This book was released on 2008 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NEW Dual phase Steel Reinforcing Bars for Enhancing Capacity and Durability of Anti seismic Moment Resisting Frames NEWREBAR written by and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: NEWREBAR research project aims to develop a new typology of steel reinforcing bars provided by enhanced properties in terms of ductility and durability towards aggressive environmental conditions. The need of such kind of steels depends by the fact that the decrease of ductility both under monotonic and cyclic loading conditions was assessed for most of actual reinforcing steels (e.g. TempCore ) exposed to corrosion phenomena. During the project, two final reinforcing steel products were developed and industrially produced, called respectively DPF and DPD in relation to the specific chemical composition selected for their realization, almost aligned with what actually on market and therefore not related to production costs' increase. Results of experimental tests and correlations highlighted the improvement in terms of durability performance of Dual-Phase steel reinforcing grades concerning ductility (Agt mainly) respect to traditional TempCore grades, with higher residual values of deformation capacity and, therefore, benefit to the overall structural performance. With the aim of fully understanding the influence of Dual-Phase steel bars to RC constructions, several case study buildings were designed according the capacity design approach: numerical nonlinear models were elaborated to assess the buildings' behaviour through pushover or incremental dynamic analyses in which the nonlinear behaviour of elements was modelled using a lumped plasticity approach, where the moment/ rotation behaviour of hinges was calibrated basing on the results of experimental tests performed on full-scale prototypes. Basing on the results of both mechanical characterization of DP grades and numerical analyses' results, recommendations for the adoption of DP grades in RC constructions were elaborated, as well as indications for introduction in current European standards.

Download or read book Design of Concrete Structures Using High strength Steel Reinforcement written by Bahram M. Shahrooz and published by Transportation Research Board. This book was released on 2011 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Report 679: Design of Concrete Structures Using High-Strength Steel Reinforcement evaluates the existing American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Bridge Design Specifications relevant to the use of high-strength reinforcing steel and other grades of reinforcing steel having no discernible yield plateau. The report also includes recommended language to the AASHTO LRFD Bridge Design Specifications that will permit the use of high-strength reinforcing steel with specified yield strengths not greater than 100 ksi. The Appendixes to NCHRP Report 679 were published online.

Download or read book Dynamic Increase Factors for Steel Reinforcing Bars written by and published by . This book was released on 1998 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: For reinforced concrete structures subjected to blast effects, response at very high strain rates (up to 1000 s-1) is often sought. At these high strain rates, the reinforcing bars yield stress can increase by 100%, or more, depending on the grade of steel used. The dynamic increase factor (DIF), i.e. the ratio of the dynamic to static value, is normally reported as function of strain rate. Knowledge of the DIF is of significant importance in the design and analysis of structures for explosives safety. DIF curves for both yield and ultimate strengths have been derived and published in manuals by the Tri-Services, the Defense Special Weapons Agency, the Air Force, and the Department of Energy. However, these curves are typically based on limited data, and even on data from steel bars of a different grade. A literature review of the effects of high strain rates on the properties of steel reinforcing bars (rebars) was conducted. Static and dynamic properties were gathered for bars satisfying ASTM A615, A15, A432, A431, and A706, with yield stresses ranging from 42 to 103 ksi (290 to 710 MPa). The data indicates that the DIF decreases for higher rebar yield stress, and that the DIF is higher for yield stress than for ultimate stress. A simple relationship is proposed that gives the DIF (for both yield and ultimate stress) as a function of strain rate and yield stress.

Download or read book Variation in the Mechanical Properties of Reinforcing Bars Classic Reprint written by James Marion Whelan Jr. and published by Forgotten Books. This book was released on 2018-01-07 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Variation in the Mechanical Properties of Reinforcing Bars The phenomenal development of reinforced concrete in the last few years has brought with it new materials, new methods, new structures, and consequently, many new problems. So rapid has been the advance in the use of concrete, that the proper working out of many of these problems has lagged far behind the need of their solution. Even the materials themselves have not been thoroughly standardized. It is true that the cement, sand, and stone, and the resulting concrete have been the subjects of much study and discussion and many questions concerning them have been settled. The quality of the steel reinforcement, how ever, has, until the last year or two, been neglected. The material used for the first reinforcing bars was the mild steel or low-carbon grade known as structural steel. This was natural as structural shapes were frequently used as rein forcement. Also, the properties of this mild steel were well known, and the mills were making it in large quantities, so that it was easy to obtain. It was early seen, however, that the maximum effective strength of the reinforcement depended upon the yield point of the material. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Bond of Reinforcement in Concrete written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2000-01-01 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In 1993, the CEB Commission 2 Material and Behavior Modelling established the Task Group 2.5 Bond Models. It's terms of reference were ... to write a state-of-art report concerning bond of reinforcement in concrete and later recommend how the knowledge could be applied in practice (Model Code like text proposal)... {This work} covers the first part ... the state-of-art report."--Pref.

Download or read book Mine Ground Control written by and published by . This book was released on 1984 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Army Research and Development written by and published by . This book was released on 1976 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bridge Engineering Handbook written by Wai-Fah Chen and published by CRC Press. This book was released on 2023-01-06 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 1999: The Bridge Engineering Handbook is a unique, comprehensive, and state-of-the-art reference work and resource book covering the major areas of bridge engineering with the theme "bridge to the 21st century." This third volume includes sections covering construction and maintenance, special topics, and worldwide practice.

Download or read book fib Model Code for Concrete Structures 2010 written by fib - f¿d¿ration internationale du b¿ton and published by John Wiley & Sons. This book was released on 2013-10-01 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Federation for Structural Concrete (fib) is a pre-normative organization. 'Pre-normative' implies pioneering work in codification. This work has now been realized with the fib Model Code 2010. The objectives of the fib Model Code 2010 are to serve as a basis for future codes for concrete structures, and present new developments with regard to concrete structures, structural materials and new ideas in order to achieve optimum behaviour. The fib Model Code 2010 is now the most comprehensive code on concrete structures, including their complete life cycle: conceptual design, dimensioning, construction, conservation and dismantlement. It is expected to become an important document for both national and international code committees, practitioners and researchers. The fib Model Code 2010 was produced during the last ten years through an exceptional effort by Joost Walraven (Convener; Delft University of Technology, The Netherlands), Agnieszka Bigaj-van Vliet (Technical Secretary; TNO Built Environment and Geosciences, The Netherlands) as well as experts out of 44 countries from five continents.

Download or read book INCREaSE 2019 written by Janio Monteiro and published by Springer Nature. This book was released on 2019-09-19 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the proceedings of the INternational CongRess on Engineering and Sustainability in the XXI cEntury – INCREaSE 2019, which was held in Faro, Portugal, from October 09 to 11, 2019. The book promotes a multidisciplinary approach to sustainable development, exploring a number of transversal challenges. Among other topics it discusses Climate Changes and Environmental Protection; Renewable Energy; Energy Efficiency in Buildings; Green Governance and Mobility; Water for Ecosystem and Society; Healthy Food; Sustainable Construction; and Sustainable Tourism, offering perspectives from civil, electronics, mechanical, and food engineering.

Download or read book Decision Based Design written by Vijitashwa Pandey and published by CRC Press. This book was released on 2013-08-26 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a presentation that formalizes what makes up decision based design, Decision Based Design defines the major concepts that go into product realization. It presents all major concepts in design decision making in an integrated way and covers the fundamentals of decision analysis in engineering design. It also trains engineers to understand the impacts of design decision. The author teaches concepts in demand modeling and customer preference modeling and provides examples. This book teaches most fundamental concepts encountered in engineering design like: concept generation, multiattribute decision analysis, reliability engineering, design optimization, simulation, and demand modeling. The book provides the tools engineering practitioners and researchers need to first understand that engineering design is best viewed as a sequence of decisions made by the stakeholders involved and then apply the decision based design concepts in practice. It teaches fundamental concepts encountered in engineering design, such as concept generation, multiattribute decision analysis, reliability engineering, design optimization, simulation, and demand modeling. This book helps students and practitioners understand that there is a rigorous way to analyze engineering decisions taking into consideration all the potential technical and business impacts of their decisions. It can be used in its entirety to teach a course in decision based design, while selected chapters can also be used to cover courses in subdisciplines that make up decision based design.

Download or read book Case Studies on Conservation and Seismic Strengthening Retrofitting of Existing Structures written by Andreas Lampropoulos and published by International Association for Bridge and Structural Engineering (IABSE). This book was released on 2020-07-01 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent earthquakes have demonstrated that despite the continuous developments of novel materials and new strengthening techniques, the majority of the existing structures are still unprotected and at high seismic risk. The repair and strengthening framework is a complex process and there are often barriers in the preventative upgrade of the existing structures related to the cost of the applications and the limited expertise of the engineers. The engineers need to consider various options thoroughly and the selection of the appropriate strategy is a crucial parameter for the success of these applications. The main aim of this collection is to present a number of different approaches applied to a wide range of structures with different characteristics and demands acting as a practical guide for the main repair and strengthening approaches used worldwide. This document contains a collection of nine case studies from six different countries with different seismicity (i.e. Austria, Greece, Italy, Mexico, Nepal and New Zealand). Various types of structures have been selected with different structural peculiarities such as buildings used for different purposes (i.e. school buildings, town hall, 30 storey office tower), a bridge, and a wharf. Most of the examined structures are Reinforced Concrete structures while there is also an application on a Masonry building. For each of the examined studies, the local conditions are described followed by the main deficiencies which are addressed. The methods used for the assessment of the in-situ conditions also presented and alternative strategies for the repair and strengthening are considered.

Download or read book Admixtures for Concrete Improvement of Properties written by E. Vazques and published by CRC Press. This book was released on 2004-11-23 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical admixtures are used to modify the properties and behaviour of fresh and hardened concrete. They enable more economic construction and the achievement of special properties such as high strength or durability. This book presents new research information from an International RILEM Symposium on six main topics: workability, setting, strength, durability, other properties and technology.

Download or read book PRO 39 6th International RILEM Symposium on Fibre Reinforced Concretes FRC BEFIB 2004 Volume 1 written by Marco Di Prisco and published by RILEM Publications. This book was released on 2004 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt: