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Punching Shear Cazpacity Sic Of Slab Column Connections With Steel Fibre Reinforcement Under Lateral Cyclic Loading
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Book Synopsis Punching Shear Cazpacity [sic] of Slab-column Connections with Steel-fibre Reinforcement Under Lateral Cyclic Loading by : Alexander, Scott D. B
Download or read book Punching Shear Cazpacity [sic] of Slab-column Connections with Steel-fibre Reinforcement Under Lateral Cyclic Loading written by Alexander, Scott D. B and published by . This book was released on 2001 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Punching Shear Capacity of Slab-column Connections with Steel-fibre Reinforcement Under Lateral Cyclic Loading by :
Download or read book Punching Shear Capacity of Slab-column Connections with Steel-fibre Reinforcement Under Lateral Cyclic Loading written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Punching shear of structural concrete slabs by : FIB - Féd. Int. du Béton
Download or read book Punching shear of structural concrete slabs written by FIB - Féd. Int. du Béton and published by FIB - Féd. Int. du Béton. This book was released on 2017 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: fib Bulletin 81 reports the latest information available to researchers and practitioners on the analysis, design and experimental evidence of punching shear of structural concrete slabs. It follows previous efforts by the International Federation for Structural Concrete (fib) and its predecessor the Euro-International Committee for Concrete (CEB), through CEB Bulletin 168, Punching Shear in Reinforced Concrete (1985) and fibBulletin 12, Punching of structural concrete slabs (2001), and an international symposium sponsored by the punching shear subcommittee of ACI Committee 445 (Shear and Torsion) and held in Kansas City, Mo., USA, in 2005. This bulletin contains 18 papers that were presented in three sessions as part of an international symposium held in Philadelphia, Pa., USA, on October 25, 2016. The symposium was co-organized by the punching shear sub-committee of ACI 445 and by fib Working Party 2.2.3 (Punching and Shear in Slabs) with the objectives of not only disseminating information on this important design subject but also promoting harmonization among the various design theories and treatment of key aspects of punching shear design. The papers are organized in the same order they were presented in the symposium. The symposium honored Professor Emeritus Neil M. Hawkins (University of Illinois at Urbana-Champaign, USA), whose contributions through the years in the field of punching shear of structural concrete slabs have been paramount. The papers cover key aspects related to punching shear of structural concrete slabs under different loading conditions, the study of size effect on punching capacity of slabs, the effect of slab reinforcement ratio on the response and failure mode of slabs, without and with shear reinforcement, and its implications for the design and formulation in codes of practice, an examination of different analytical tools to predict the punching shear response of slabs, the study of the post-punching response of concrete slabs, the evaluation of design provisions in modern codes based on recent experimental evidence and new punching shear theories, and an overview of the combined efforts undertaken jointly by ACI 445 and fib WP 2.2.3 to generate test result databanks for the evaluation and calibration of punching shear design recommendations in North American and international codes of practice.
Book Synopsis Punching Shear Retrofit of Concrete Slab-column Connections with GFRP Shear Bolts by : Nicholas David Lawler
Download or read book Punching Shear Retrofit of Concrete Slab-column Connections with GFRP Shear Bolts written by Nicholas David Lawler and published by . This book was released on 2008 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the life span of a structure it may become necessary to retrofit, or strengthen certain components or elements. This may be due to construction errors, changes in use and occupancy, or changes due to material deterioration or damage. Slab-column connections in flat slab structures might need to be strengthened for punching shear. Using steel shear bolts to strengthen connections for punching shear is a new technique used for retrofit that was developed at the University of Waterloo. If the retrofitted part of the structure is exposed to the atmosphere, or to chemicals such as deicing salts, the steel can corrode, thus furthering to damage the structure. Non-corrosive materials that can replace the steel shear bolts can be a good practical alternative to steel. Reported in this thesis are the results of research on the development and use of non-corrosive shear bolts for reinforced concrete interior slab-column connections. Externally applied shear reinforcing bolts provide the punching shear reinforcement strength, while allowing the flexibility and ease of installation of an external application after construction. By providing a bearing area against both sides of the slab surface, the formation of punching shear cracks can be restrained, and the connection can become strengthened against punching shear failure. Three different types of non-corrosive shear bolts were developed and tested. The first was an off-the-shelf glass fiber reinforced polymer (GFRP) bolt / nut product. The two others used two different GFRP core rods with aluminum fittings crimped to their ends. A total of six specimens were tested, four were tested under an increasing static load, while two were tested with an unbalanced pseudo-dynamic lateral load. All six specimens were designed to fail in punching shear before reaching their flexural capacity. The results are compared against previous test results of specimens both unreinforced and reinforced with steel shear bolts to determine their effectiveness. From the test results it was found that the GFRP shear bolts did strengthen the connections for punching shear. The GFRP nut and bolt did not strengthen the connection, and, in fact, decreased its overall strength when compared to the unreinforced specimen. The presence of the GFRP shear bolts also increased the connection ductility and the deflection capability. In the pseudo-dynamic tests the GFRP shear bolts significantly increased the amount of energy dissipated by the connection under reverse cyclic loading. The results of the testing appeared to be depended on the proper application of the crimping technique to place the bolts in the slab.
Book Synopsis Punching Shear in Reinforced Concrete Slabs by : Maria Anna Polak
Download or read book Punching Shear in Reinforced Concrete Slabs written by Maria Anna Polak and published by . This book was released on 2005 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Punching Shear Retrofit Method Using Shear Bolts for Reinforced Concrete Slabs Under Seismic Loading by : Wensheng Bu
Download or read book Punching Shear Retrofit Method Using Shear Bolts for Reinforced Concrete Slabs Under Seismic Loading written by Wensheng Bu and published by . This book was released on 2008 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reinforced concrete slab-column structures are widely used because of their practicality. However, this type of structures can be subject to punching-shear failure in the slab-column connections. Without shear reinforcement, the slab-column connection can undergo brittle punching failure, especially when the structure is subject to lateral loading in seismic zones. The shear bolts are a new type of transverse reinforcement developed for retrofit of existing structures against punching. This research focuses on how the shear bolts can improve the punching-shear capacity and ductility of the existing slab-column connections under vertical service and lateral seismic loads.
Book Synopsis Strength and Behavior of Reinforced Concrete Slab-column Connections Subjected to Static and Dynamic Loadings by : Marvin E. Criswell
Download or read book Strength and Behavior of Reinforced Concrete Slab-column Connections Subjected to Static and Dynamic Loadings written by Marvin E. Criswell and published by . This book was released on 1970 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this investigation were to study the strength and behavior of slowly (statically) loaded reinforced concrete slab-column connections and to determine the effect of rapid (dynamic) loading on the strength and behavior by comparison with the static test results. Nineteen full-scale models of a connection and adjoining slab area, consisting of a simply supported slab 84 or 94 inches square and 6-1/2 inches thick loaded concentrically on a 10- or 20-inch-square stub column at the center of the slab, were tested. The main variables were the amounts of reinforcement in the slab (p = 0.75 and 1.50 percent), the column size, and the loading speed. Eight specimens were loaded to failure statically, two were subjected to a very rapidly applied load of short duration, and nine were loaded to failure by a rapidly applied load with a rise time chosen to represent the conditions in a blast-loaded structure. The static test results are compared with 12 shear strength prediction methods. Differences between the mechanism of shear failure in slabs and beams are examined. (Author).
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 2000 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Punching Shear Strength and Drift Capacity of Slab-column Connections with Headed Shear Stud Reinforcement Subjected to Combined Gravity Load and Biaxial-lateral Displacements by : Eric Michael Matzke
Download or read book Punching Shear Strength and Drift Capacity of Slab-column Connections with Headed Shear Stud Reinforcement Subjected to Combined Gravity Load and Biaxial-lateral Displacements written by Eric Michael Matzke and published by . This book was released on 2012 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :fib Fédération internationale du béton Publisher :fib Fédération internationale du béton ISBN 13 :2883940975 Total Pages :274 pages Book Rating :4.8/5 (839 download)
Book Synopsis Shear and Punching Shear in RC and FRC Elements by : fib Fédération internationale du béton
Download or read book Shear and Punching Shear in RC and FRC Elements written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2010-12-01 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: fib Bulletin 57 is a collection of contributions from a workshop on "Recent developments on shear and punching shear in RC and FRC elements", held in Salò, Italy, in October 2010. Shear is one of a few areas of research into fundamentals of the behaviour of concrete structures where contention remains amongst researchers. There is a continuing debate between researchers from a structures perspective and those from a materials or fracture mechanics perspective about the mechanisms that enable the force flow through a concrete member and across cracks. In 2009, a Working Group was formed within fib Task Group 4.2 "Ultimate Limit State Models" to harmonise different ideas about design procedures for shear and punching. An important outcome of this work was the ensuing discussions between experts and practitioners regarding the shear and punching provisions of the draft fib Model Code, which led to the organization of the Salò workshop. Invited experts in the field of shear and FRC gave 18 lectures at the workshop that was attended by 72 participants from 12 countries in 3 different continents. The contributions from this conference as compiled in this bulletin are believed to represent the best of the current state of knowledge. They certainly are of general interest to fib members and especially helpful in the finalization of the 2010 fibModel Code. It is hoped that this publication will stimulate further research in the field, to refine and harmonize the available analytical models and tools for shear and punching design.
Download or read book ACI Materials Journal written by and published by . This book was released on 2000 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Punching Shear Behaviour of GFRP-RC Slab-column Interior Connections with High Strength Concrete and Shear Reinforcement by : Ahmed Hussein
Download or read book Punching Shear Behaviour of GFRP-RC Slab-column Interior Connections with High Strength Concrete and Shear Reinforcement written by Ahmed Hussein and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work deals with punching shear behaviour of flat plates reinforced with glass fibre-reinforced polymers (GFRP) reinforcing bars. Six full-scale reinforced concrete (RC) slab-column interior connections were constructed and tested to failure. Two variables were investigated; the flexural reinforcement ratio when high strength concrete (HSC) is used and the type of GFRP shear reinforcement (headed studs and corrugated bars) when normal strength concrete (NSC) is used. All specimens were tested under concentric shear force and unbalanced bending moment with a constant moment-to-shear ratio. Increasing the reinforcement ratio increased punching capacity and post-cracking stiffness for HSC connections. Both types of shear reinforcement increased the punching capacity and deflection of NSC connections. Test results were compared with the predictions of the available fibre-reinforced polymer (FRP) design provisions in North American codes.
Book Synopsis Punching Shear Behaviour of Slab-column Edge Connections Reinforced with Fibre-reinforced Polymer (FRP) Composite Bars by : Mohammed ElGendy
Download or read book Punching Shear Behaviour of Slab-column Edge Connections Reinforced with Fibre-reinforced Polymer (FRP) Composite Bars written by Mohammed ElGendy and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Behaviour of Slab-column Connections with Partially Debonded Reinforcement Under Cyclic Lateral Loading by : Malika A. Ali
Download or read book Behaviour of Slab-column Connections with Partially Debonded Reinforcement Under Cyclic Lateral Loading written by Malika A. Ali and published by . This book was released on 2002 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Enhancement of flat flabs' shear resistance using gabion mesh by : Hailemelekot Haileslassie
Download or read book Enhancement of flat flabs' shear resistance using gabion mesh written by Hailemelekot Haileslassie and published by GRIN Verlag. This book was released on 2020-10-08 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2018 in the subject Engineering - Civil Engineering, grade: very good, Mekelle University (Ethiopian Institute of Technology), course: Msc in structural engineering, language: English, abstract: This thesis presents study of punching shear capacity of flat slab-column junctions. A three dimensional nonlinear finite element program based on 8 node solid elements was used to carry out the nonlinear analysis of flat-slab models with and without gabion-mesh. The effect of gabion arrangements for punching and the ultimate load prediction for each was presented in this thesis. The results obtained from abaqus were compared to code prediction results, and the failure mode also compared to experimental and code predicted failure modes. The predicted mode of failure and other responses are in a good correlation to euro code predicted values. In addition to punching gabion has greater resistance to flexure by increasing the stiffness of the slab. Finally it is concluded that using hexagonal gabion mesh at tension part is easy, effective and can solve construction difficulty of drop panels and one layer gabion can reduce 10mm of slab thickness. Punching strength is a critical point in the design of flat slabs and due to the lack of a theoretical method capable of explaining this phenomenon, empirical formulations presented by codes of practice are still the most used method to check the punching resistance of slab-column connections. Flat slab is a reinforced concrete slab supported directly by concrete columns without the use of beams. This type of slab is appropriate for most floor situations and also for irregular column layouts. Because of its aesthetic view, simplicity for construction, reduction of foundation cost, this becomes very common and competitive structural system for cast-in-place slabs in buildings. Flat plates allow easy and flexible partitioning of space and reduce the overall height of tall buildings. But since the load is directly transferred from slab to column due to high localized force at the column punching effect or punching shear failure is critical. This type of failure is catastrophic because no visible signs are shown prior to failure. To increase the punching resistance of the flat slab several methods have been used, such as drop panel, column capital, column head and shear reinforcements such as shear stud and stirrups. In our country Ethiopia the first three mechanisms are used to increase the resistance of punching shear in flat slabs but shear reinforcements are being used in other countries such as America and British.
Book Synopsis Behavior of Slab-column Connect[i]ons with Partially Debonded Reinforcement Under Lateral Cyclic Loading by : Malika Abbas Ali
Download or read book Behavior of Slab-column Connect[i]ons with Partially Debonded Reinforcement Under Lateral Cyclic Loading written by Malika Abbas Ali and published by . This book was released on 2001 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Punching Shear Strength of Slab-column Connections in Reinforced Concrete by : Wahid R. Hakki
Download or read book Punching Shear Strength of Slab-column Connections in Reinforced Concrete written by Wahid R. Hakki and published by . This book was released on 1982 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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