Download or read book An Investigation Into the Behaviour and Strength of Reinforced Concrete Deep Beams with Web Openings written by J. P. Singh and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reinforced Concrete Deep Beams written by F K Kong and published by CRC Press. This book was released on 1991-05-01 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents of this book have been chosen with the following main aims: to review the present coverage of the major design codes and the CIRIA guide, and to explain the fundamental behaviour of deep beams; to provide information on design topics which are inadequately covered by the current codes and design manuals; and to give authoritative revie

Download or read book Strength and Behaviour of High Strength Concrete Deep Beam with Web Openings written by Tae Min Yoo and published by . This book was released on 2011 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : Over the last few decades, concrete deep beam research has attracted attentions of both academics and professionals due to the increasing use of this type of structural members in construction projects. Evaluating the ultimate strength of concrete deep beams has been a great challenge because of the complexity of these structural members. Moreover, using high strength material and having openings in the web increase the difficulties of predicting the ultimate strength. Normally, web openings are introduced to accommodate services such as air-conditioning ducts, cables, and other essential services. However, the existence of web openings causes geometric discontinuity within the beam and non-linear stress distributions over the depth of the beam. Furthermore, present Codes of Practices do not cover the design of deep beams with web openings. The focus of this thesis is to develop a set of simple and reliable design equations for high strength concrete deep beams with web openings. Deep beams without web reinforcement but with web openings are given particular attention in this investigation, which constitutes three major components: experimental, numerical and theoretical studies.

Download or read book Building Code Requirements for Structural Concrete ACI 318 08 and Commentary written by ACI Committee 318 and published by American Concrete Institute. This book was released on 2008 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: The quality and testing of materials used in construction are covered by reference to the appropriate ASTM standard specifications. Welding of reinforcement is covered by reference to the appropriate AWS standard. Uses of the Code include adoption by reference in general building codes, and earlier editions have been widely used in this manner. The Code is written in a format that allows such reference without change to its language. Therefore, background details or suggestions for carrying out the requirements or intent of the Code portion cannot be included. The Commentary is provided for this purpose. Some of the considerations of the committee in developing the Code portion are discussed within the Commentary, with emphasis given to the explanation of new or revised provisions. Much of the research data referenced in preparing the Code is cited for the user desiring to study individual questions in greater detail. Other documents that provide suggestions for carrying out the requirements of the Code are also cited.

Download or read book Concrete Beams with Openings written by M. A. Mansur and published by CRC Press. This book was released on 1999-01-29 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book compiles state-of-the-art information on the behavior, analysis, and design of concrete beams containing transverse openings. Discussions include the need, effects, and classification of openings as well as the general requirements for fulfilling design pure bending, combined bending, and shear - illustrated with numerical examples torsion alone or in combination with bending and shear large rectangular openings as well as opening size and location on beam behavior methods for analyzing ultimate strength and serviceability requirements effects of torsion in beams large openings in continuous beams and their effects on possible redistribution of internal forces as well as guidelines and procedures for the design of such beams effect of prestressing on the serviceability and strength of beams with web openings design against cracking at openings and ultimate loads Concrete Beams with Openings serves as an invaluable source of information for designers and practicing engineers, especially useful since little or no provision or guidelines are currently available in most building codes.

Download or read book Behavior of Reinforced Concrete Deep Beams Under Static and Dynamic Loading written by Fred W. Beaufait and published by . This book was released on 1967 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Strength and Behaviour of Fibre Reinforced Concrete Deep Beams with and Without Web Openings written by I. M. Shaker and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental Study on the Behaviour of Reinforced Concrete Deep Beams with Large Circular Openings Strengthened Using CFRP written by Wen Khai Chong and published by . This book was released on 2015 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: This experimental research was conducted to study the behaviour of unstrengthen RC deep beams with openings and strengthened using Carbon Fiber Reinforced Polymer (CFRP). Strengthening configuration of CFRP-wrap used in this study were U-wrap and surface-wrap which applied with one layer of CFRP and in vertical alignment (90o). Four RC deep beams which included a solid control beam, a beam with two large circular openings, beams with two large circular openings strengthened using U-wrap and surface-wrap were tested to failure under four-point loading. All the beam specimens were in a dimension of 120 x 600 mm and 2400 mm in length. The support and loading point were located at 300 mm and 800 mm from the edge of the RC deep beams, respectively. Circular openings was designed with a standard of 0.45h which considered as large circular openings in a diameter of 270 mm that located 435 mm from the edge of the RC deep beams. Shear span-to-depth ratio (a/h) in this study was 0.83 in which the distance between the loading point and the support was 500 mm in order for the beam specimens to fail in shear region. RC deep beam with large circular openings, NS-BCO greatly reduced the beam strength, approximately 51.20 % as compared to the control beam. On the other hand, RC deep beam with circular openings strengthened using U-wrap, UW-BCO increases the beam strength up to almost 85.0 % as compared to NS-BCO. Hence, the most effective strengthening method was U-wrap, UW-BCO which re-gained the beam strength up to 90.28 % as compared to control beam.

Download or read book Eexperimental and Numerical Studies on Behaviour of Frp Strengthened Deep Beams with Openings written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Reinforced concrete deep beams are widely used as transfer girders in offshore structures and foundations, walls of bunkers and load bearing walls in buildings. The presence of web openings in such beams is frequently required to provide accessibility such as doors and windows or to accommodate essential services such as ventilating and air conditioning ducts. Enlargement of such openings due to architectural/mechanical requirements and/or a change in the building's function would reduce the element's shear capacity, thus rendering a severe safety hazard. Limited studies have been reported in the literature on the behavior and strength of RC deep beams with openings. When such enlargement is unavoidable adequate measures should be taken to strengthen the beam and counteract the strength reduction. The present experimental investigation deals with the study of deep beams containing openings and the validation of results with FEM model using ANSYS. A total of 5 deep beams with openings are casted without shear reinforcements and are tested under three-point loading. Test specimen has a cross section of 150x460 mm and a total length of 1200 mm. Two circular openings, one in each shear span, are placed symmetrically about the mid-point of the beam. The structural response of RC deep beams with openings was primarily dependent on the degree of the interruption of the natural load path. Externally bonded GFRP shear strengthening around the openings was found very effective in upgrading the shear strength of RC deep beams. The strength gain caused by the GFRP sheets was in the range of 68-125%. Finite element modeling of RC deep beams containing openings strengthened with GFRP sheets is studied using ANSYS and the results are compared with experimental findings.

Download or read book An Investigation of the Behavior of Deep Members of Reinforced Concrete and Steel written by W. J. Austin and published by . This book was released on 1960 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this investigation is to obtain information which will contribute to a better understanding of the strength and behavior of deep beams of reinforced concrete and steel subjected to slowly and rapidly applied loading, and to develop means for the prediction of this behavior. This report contains the following: (1) a thorough survey of the literature pertaining to the behavior of deep beams subjected to static and dynamic loads; (2) the results of static tests of twenty-three simply-supported, deep, reinforced concrete beams, fourteen under uniform loading and nine with a single concentrated load at midspan; (3) the results of dynamic tests on two simply-supported, deep, reinforced concrete beams; and (4) the results of one test of a deep, steel beam of I-shape cross section subjected to slowly-applied uniform loading. Experimental results are compared with theory. (Author).

Download or read book An Investigation Into the Behaviour and Design of Reinforced Concrete Deep Beams and Corbals written by Neil Robert Turner and published by . This book was released on 1975 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design of Composite Beams with Large Web Openings written by R. M. Lawson and published by . This book was released on 2011 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Investigation of Deep Reinforced Concrete Beams Under Static and Dynamic Loading Vol Ii Strength and Behavior in Shear written by H. A. R. DE PAIVA and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thirty-five beams were tested, 13 statically and 22 dynamically, to determine their strength and behavior in shear; to determine if failure under a dynamic load was different from that under a static load; and to evaluate the effectiveness of web reinforcement in moderately deep beams. All beams tested, both statically and dynamically, exhibited arch action prior to failure. Three types of failures are described for both tests: flexure, shear, and flexure-shear. Web reinforcement in the beams tested both ways contributed little toward an increase in strength or a change in behavior and mode of failure, except for generally reducing the ultimate deflections. The static strength at flexural yielding in these moderately deep beams could be predicted reasonably well by the conventional straight line theory. The ultimate static flexural strength could be predicted by the standard ultimate strength procedure provided an increased value of the limiting concrete strain equal to 0.008 is used at failure. (Author).

Download or read book Behavior and Design of Deep Structural Members Part 1 Summary of Investigation written by ILLINOIS UNIV URBANA. and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Static tests of reinforced concrete deep beams with web and compression reinforcement Static tests of reinforced concrete deep beams without web reinforcement Dynamic tests of reinforced concrete deep beams Resistance and behavior of reinforced concrete beams of normal proportions under rapid loading The yield strength of intermediate grade rein forcing bars under rapid loading Behavior of deep steel I-shaped beams under slowly applied uniform load.

Download or read book A Study of Shear Behavior of Reinforced Concrete Deep Beams written by Phu Trong Nguyen and published by . This book was released on 2013 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reinforced concrete deep beams are vital structural members serving as load transferring elements. The behavior of reinforced concrete deep beams is complex. Nonlinear distribution of strain and stress must be considered. Prior to 1999, ACI 318 Codes included an empirical design equation for reinforced concrete deep beams. Since 2002, the strut and tie model and nonlinear analysis have been required. However, both methods have disadvantages of complexity or lack of transparency. The objective of this study is to produce a simple, reliable design equation for reinforced concrete deep beams. A nonlinear finite element program, ATENA, was used for analyzing and predicting the behavior of concrete and reinforced concrete structures. First, applicability of ATENA was verified by developing the computer models of simply supported and two span continuous deep beams based on Birrcher's tests of simply supported deep beams. Tests by Rogowsky and Macgregor and by Ashour are the basis for the models of continuous two span deep beams. Those tests were selected because the researchers reported adequate details of the experimental program and on specimen behavior. Then a series of simply supported and two span continuous deep beam models were developed based on the details and geometry of Birrcher's beams. The computer models were used to investigate the following parameters: the compressive strength of concrete, shear span to depth ratios, longitudinal reinforcement ratios, web reinforcement, effect of member depth, and loading conditions. Finally, a proposed design equation for shear strength of reinforced concrete deep beams was derived based on the observed the behavior of reinforced concrete deep beam tests, the results of the analytical study, and a plastic truss model. The proposed equations were in good agreement with test values and provide an alternate approach to current design procedures for deep beams.

Download or read book An Investigation Into the Ultimate Strength of Reinforced Concrete Deep Beams written by D. P. Ray and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Investigation Into the Effects of Web Openings on the Behavior of Rectangular Reinforced Concrete Beams Subjected to Combined Flexure and Torsion written by Jon David Winchester and published by . This book was released on 1969 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: