3 edition of Ultimate sheer strength of reinforced concrete beams with web reinforcement found in the catalog.
Ultimate sheer strength of reinforced concrete beams with web reinforcement
Munther Jeries Haddadin
in Ann Arbor
Written in English
Thesis (Ph. D.)-University of Washington. Microfilm of typescript. Ann Arbor; University Microfilms, 1969. 1 reel. 35mm.
|The Physical Object|
|Number of Pages||177|
This paper presents test results of six large-size concrete beams reinforced with either high-strength or conventional Grade MPa (60 ksi) steel and tested up to failure. All the beams were constructed without web reinforcement to evaluate the concrete shear strength. The influence of the shear span-. the influence of each parameter affecting the failure shear strength. New expressions are proposed, taking into account the observed behaviour for the design of high-strength and normal-strength reinforced concrete beams with and without web reinforcement. A new equation is given for the amount of minimum reinforcement as well.
technique. Predications of current standards for ultimate shear capacity of R.C beams are found to be either too conservative or slightly risky for certain compressive strength of concrete, ratio of tension reinforcement, ratio of web reinforcement, and ratio of shear span to effective depth. In order to have a closer view to the above mentioned. This paper focuses on the assessment of the shear strength prediction established in the brazilian concrete code, NBR/, for reinforced concrete beams without web reinforcement. The values obtained by using the brazilian code equation are compared with a significant number of available experimental data and with those predicted by the expressions of other national and international Author: Leandro Mouta Trautwein, Luiz Carlos de Almeida, Ricardo Gaspar.
A design equation for shear strength is proposed upon investigation of published test results on shear strengths of reinforced concrete beams without web reinforcement. The proposed equation is deduced based on experiments of beams failing in a diagonal tension mode and subjected to no axial force, and basically, this is also the range of Cited by: Shear Capacity Assessment of Reinforced Concrete Beams using Swimmer Bars as This study is based upon the experimental investigation of shear reinforcement used in the reinforced concrete beams by using swimmer bars. In practice, vertical stirrup system is used in order with inclined stirrups showed more ultimate strength than the Author: Muneeb Ullah Khan, Muhammad Fahad, Khan Shahzada.
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A theory is presented to predict the ultimate shear strength of T-beams of long shear span without web reinforcement. Failure is assumed to occur in the compression zone above the diagonal crack due to the combined shearing and compressive stresses, and is based on Mohr's failure theory.
Both equilibrium and compatibility conditions are considered, as well as the shear force due to dowel Cited by: 9.
A rational and mechanics-based equation is proposed for the prediction of shear strength of reinforced concrete beams without web reinforcement. This prediction is based on basic shear transfer mechanisms, a modified Bazant’s size effect law, and numerous published experimental data, including high-strength concrete beams with compressive Author: Jin-Keun Kim, Yon-Dong Park.
The model was used to estimate the shear strength of steel reinforced deep beams without web reinforcement, and it assumes that the load is directly transmitted to the support by an inclined concrete strut.
For nodal zones, the model assumes a non-hydrostatic stress state, and thus the normal stresses applied at each face of the node are by: 9. calculate the strength provided by the concrete: The nominal shear strength provided by the concrete Vc is computed as: The value of in equation 5 is limited to a maximum of psi.
ACI makes exception to this requirement for beams meeting the minimum web File Size: KB. The shear behaviour of beams reinforced with high-strength steel (HSS) was compared with that of beams reinforced with grade steel to demonstrate the benefits of using high-strength reinforcement.
The shear and flexural strength of reinforced concrete masonry (RCM) beams without web reinforcement have been investigated previously by various researchers, and it has been found that the behavior of RCM beams is very similar to that of reinforced concrete (RC) beams, where the existence of shearing forces would cause a sudden, premature Cited by: 1.
for predictingthe ultimate shear strength of prestressed concrete bridge girders with web reinforcement. While this investigation is similar to the other investigations of prestressed beams with web reinforcement cited in Sectionthe tests reported herein have several significant features.
Both concen. Cite this chapter as: Grob J., Thürlimann B. () Ultimate Strength and Design of Reinforced Concrete Beams under Bending and Shear.
In: Ultimate Strength and Design of Reinforced Concrete Beams under Bending and Shear / Résistance et dimensionnement des poutres en béton armé soumises à la flexion et à l’effort tranchant / Bruchwiderstand und Bemessung von Stahlbetonbalken unter Cited by: For the reinforced high strength concrete deep beams, the effect of concrete grade, shear span-to-depth ratio and web reinforcement were investigated in different recent studies.
1 SHEAR CAPACITY OF REINFORCED HIGH-STRENGTH CONCRETE BEAMS WITHOUT WEB REINFORCEMENT S.V.T.J. PERERA1*† and H. MUTSUYOSHI1 1Department of Civil and Environmental Engineering, Saitama University, Japan ABSTRACT Three series of reinforced concrete (RC) beams without web reinforcement were tested to determineAuthor: S.V.T.J.
Perera, H. Mutsuyoshi. Beams subjected to moderate or severe deterioration exhibited a ca. 30% decrease in the ultimate shear strength relative to control beams, and this was due to the loss of bonding between the stirrup and the concrete which affected the capacity to arrest the initiation of diagonal cracks in the shear strength zone, thus causing brittleness and Cited by: Design of Reinforced Concrete Beams 47 Shear area of concrete = Ac where = gross cross-sectional area of concrete.
Note: The shear area of concrete is entered as input to some computer programs when the analysis is required to take into account the deformations due to shear.
Thermal strain. TABLEOFCONTENTS(continued) tv Spaman Beam1A(NoStirrups-Theoretical BeamIE(NoStirrups-NoCutoff). Beam 11A(31/2"StirrupSpacing- TheoreticalCutoff) Beam 11B(31/2"StirrupSpacing- NoCutoff) TheEffectofConcreteStrength 24"Shear Cutoff) Series I Beam Beam Beam Beam SeriesI Beam Beam Beam Series I Beam Beam Beam 32 1 2 Span psi psi 3,) psi.
beams with straight tension reinforcement only. Since beams are seldom subjected to flexure alone, and since beams with straight tension reinforcement only are ex-tremely vulnerable to the effects of inclined tensile stresses, the investigation was mainly concerned with n shearlJ strength.
The beams were loaded to failure under one or two. reinforced concrete construction. The three most common are working-stress design, ultimate-strength design, and strength design method. Each method has its backers and supporters. For actual designs the latest edition of the ACI Code should be consulted.
Beams Concrete beams may be File Size: KB. Eighteen rectangular singly reinforced high-strength concrete beams without web reinforcement were tested in combined shear and flexure.
The main variables were the longitudinal steel reinforcement ratio and the shear-span to effective depth ratio. The uniaxial compressive strength of concrete was about 93 MPa (13, psi). This course will cover the basic concepts of design of shear strength and shear reinforcement for nonprestressed reinforced concrete beams, based on the new criteria specified in the latest edition of the American Concrete Institute (ACI), Building Code Requirements for Structural Concrete ACI(herein referred as ACI ).
Abstract: This research aims to study: (1) the behavior and ultimate shear strength of steel fiber reinforced concrete (SFRC) beams; (2) the possibility of using steel fibers as minimum shear reinforcement in reinforced concrete (RC) beams; and (3) the effectiveness of steel fibers as a means to reduce shear size effect in RC beams.
A total of 28 simply-supported beams with a shear span-to Cited by: evaluate the values of cracking and ultimate shear strength of the reinforced concrete beams having web reinforcement by the following equations: Eng.
Khaled Abdelsamee, Dr. Mhamoud Hosni, Dr. Yehia A. Hassanean & Prof. Housni M. Sogier 30 (5) a d) F d a q '( Author: Khaled Abdelsamee, Mhamoud Hosni, Yehia A.
Hassanean, Housni M. Sogier. One of the main objectives of the design of reinforced concrete beams is safety. Sudden failure due to shear low strength is not desirable mode of failure. The reinforced concrete beams are designed primarily for flexural strength and shear strength.
Beams are structural members used to carry loads primarily by internal moments and by: 5. Shear strength model for reinforced concrete beams with web reinforcement Authors: Wei-wei Wei, Jin-xin Gong, Yi Che Source: Magazine of Concrete Research, Vol Issue 6, Cited by: The shear strength of continuous lightly reinforced concrete T -beams is studied.
Six two span T -beams with and without web reinforcement are tested. The primary variables are longitudinal reinforcement ratio (% and %) and nominal stirrup strength (0 to 82 psi).For beams with web reinforcement, the shear strength is given as Vc ()1/2 1/3' ξρ τf cwbd ⎡⎤ =⎢⎥ ⎣⎦ (17) (cot) vw s yw dA V sf d θ.
(18) In the present research, seventy high-strength concrete-reinforced (HSRC) beams with and without web shear have been tested under monotonic load at .