Influence of Concrete Tensile Ductility on Compressive Strength of Confined Columns

Bortolotti, Lionello

doi:10.1061/(asce)0899-1561(1994)6:4(542)

Cited by 7 publications

(4 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The material constants (M, B) in Johnston's strength criterion can be determined from a regression analysis, taking into account a series of triaxial tests on intact samples of rock or concrete. If there are no laboratory triaxial compression test data, the values of the constants can be estimated by the following two equations B = 1 -0.0172(log1000f c ) 2 (10) (for a wide variety fo geomaterials: 3 0.08 MPa ≤ f c ≤ 600 MPa) (11) in which f c is the uniaxial compressive strength, in MPa; and f tsp is the splitting tensile strength, in MPa. The value of f c /f tsp can be estimated from the proposed Eq.…”

Section: Applicability Of Johnston's Strength Criterionmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of Ratio between Splitting Tensile Strength and Compressive Strength for Concretes up to 120 MPa and its Application in Strength Criterion

2006

View full text Add to dashboard Cite

A large-scale regression analysis was carried out using experimental data gathered from various sources to evaluate the ratio of splitting tensile strength to cylinder compressive strength as a function of compressive strength of concrete. The reliability of the proposed equation based on experimental data for compressive strength ranging between 4 and 120 MPa (580 to 17,400 psi) was assessed by means of the integral absolute error (IAE). It is also shown that, by only knowing compressive strength and the ratio of tensile to compressive strength, the failure envelope for very highstrength concrete can be established using Johnston's strength criterion without performing triaxial compression tests. A numerical example demonstrates the application of Johnston's strength criterion.

show abstract

Section: Applicability Of Johnston's Strength Criterionmentioning

confidence: 99%

“…1. With respect to Bortolotti's studies, 1,2 the ultimate strain value in uniaxial tension is expressed in terms of this strength ratio.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Ratio between Splitting Tensile Strength and Compressive Strength for Concretes up to 120 MPa and its Application in Strength Criterion

2006

View full text Add to dashboard Cite

show abstract

“…The review and observation of test results from several reports published on triaxial testing on concrete, rocks and rocklike materials (Bortolotti, 1991(Bortolotti, , 1994Setunge et al, 1993;Yapi Merkezi Inc, 1996;Arioglu et al, 2006;Trivedi, 2010Trivedi, , 2013a strongly support the suitability of JC-criterion for a wide range of materials. The JC-criterion can be expressed as …”

Section: Strength Criterion In Relation To the Intrinsic Joint Characmentioning

confidence: 57%

Computing in-situ strength of rock masses based upon RQD and modified joint factor: Using pressure and damage sensitive constitutive relationship

Trivedi

2015

Journal of Rock Mechanics and Geotechnical Engineering

View full text Add to dashboard Cite

a b s t r a c tIn this study, a new model was presented for computing strength of rock masses based upon in-situ observations of RQD popularly known as rock quality designation. This model links up the rock mass parameters from in-situ investigations with the strength parameters of jointed rocks obtained from laboratory scale experimental observations. Using the constitutive relation, the author derived a pressure and damage sensitive plastic parameter to determine strength of rock masses for varied extents of discontinuity and pressure induced damage. The test results show that plasticity characterized by hardening and softening inclusive of damage invariably depends upon mean pressure and extent of deformations already experienced by rock masses. The present work explores the test data that reveal the dependence of in-situ strength on incremental joint parameters obtained from the joint number, joint orientation, joint roughness, gouge parameters and water pressure. Substituting the relationship between the RQD and modified joint factor with that between modulus ratio and strength ratio, the model shows successfully that using damage inclusive plastic parameter and RQD provides a relationship for estimating the strength of rock masses. One of the main objectives of this work is to illustrate that the present model is sensitive to plasticity and damage together in estimating in-situ strength of rock masses in foundations, underground excavation and tunnels.

show abstract

“…(2) In Equal (2) f k is Compressive Strength (MPa), Ed is modulus of dynamic elasticity (MPa/m2) [6].…”

Section: Methodsmentioning

confidence: 99%

Some engineering characteristics of heavyweight shotcrete

Çakiroğlu

Akkaş

2015

AIP Conference Proceedings

View full text Add to dashboard Cite

Abstract. In this study some engineering characteristics of heavyweight shotcrete were determined that encountered any information in the literature, for this purpose heavyweight shotcrete were produced with using barite aggregates, that max grain size was 8mm, and some engineering characteristics such as compressive strength, Elastic Modules and ultrasonic pulse velocity were investigated with nondestructive tests.

show abstract

Influence of Concrete Tensile Ductility on Compressive Strength of Confined Columns

Cited by 7 publications

References 4 publications

Evaluation of Ratio between Splitting Tensile Strength and Compressive Strength for Concretes up to 120 MPa and its Application in Strength Criterion

Evaluation of Ratio between Splitting Tensile Strength and Compressive Strength for Concretes up to 120 MPa and its Application in Strength Criterion

Computing in-situ strength of rock masses based upon RQD and modified joint factor: Using pressure and damage sensitive constitutive relationship

Some engineering characteristics of heavyweight shotcrete

Contact Info

Product

Resources

About