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dynamic tests of concrete reinforcing steels

dynamic tests of concrete reinforcing steels

DYNAMIC TESTS OF CONCRETE REINFORCING STEELS.

Dynamic tests were conducted on four grades of concrete reinforcing steel: (a) A15 intermediate grade, (b) A15 hard grade, (c) A432 (60,000-psi minimum yield strength), and

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DYNAMIC TESTS OF CONCRETE REINFORCING STEELS

dynamic tests of concrete reinforcing steels. dynamic tests were conducted on four grades of concrete reinforcing steel: a15 intermediate grade, a15 hard grade, a432 (60,000-psi minimum yield strength), and a431 (75,000- psi minimum yield strength). the effects of strain rate (up to 1.7 in./in./sec) and machine testing speed (up to 30 in./

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DYNAMIC TESTS OF CONCRETE REINFORCING STEELS.

Dynamic tests were conducted on four grades of concrete reinforcing steel a A15 intermediate grade, b A15 hard grade, c A432 60,000-psi minimum yield strength, and d A431 75,000-psi minimum yield strength. The effects of strain rate up to 1.7 in.sec and machine testing speed up to 30 in.sec on the upper stress and tensile strength of each steel ...

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DYNAMIC TESTS OF LARGE REINFORCING BAR - DTIC

2018-11-9  Available at the U. S. Army Engineer Waterways Experiment Station (WES) is a dynamic ra. loader13 that can apply 200,000 pounds of force within 1-1/2 msec, thus making it possible to test large-sized steel reinforcing bars at very rapid loading rates.

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Innovative testing system for concrete-reinforcing

ZwickRoell offers testing solutions to perform tensile tests up to 5,000 kN on concrete-reinforcing steel. Because concrete has high compressive strength but lower tensile strength, it is reinforced by embedding steel in it. Reinforcing steels are mainly produced in diameters from approx. 10 mm to approx. 50 mm. The smaller diameters are then further processed into mats or lattices before having concrete poured

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Dynamic Strength Properties of Concrete and

2016-9-1  Title: Dynamic Strength Properties of Concrete and Reinforcing Steel Subject to Extreme Loads Author(s): Seongwon Hong and Thomas H.-K. Kang Publication: Structural Journal Volume: 113 Issue: 5 Appears on pages(s): 983-995 Keywords: dynamic increase factor; dynamic strength properties; reinforcing steel Date: 9/1/2016 Abstract: Understanding dynamic strength properties of concrete and ...

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CiNii 図書 - Dynamic tests of concrete reinforcing steels

Dynamic tests of concrete reinforcing steels W. L. Cowell (NCEL technical report / [U.S. Naval Civil Engineering Laboratories], R394, AD-622554) Naval Civil Engineering Laboratory, 1965

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COMPARISON TEST OF REINFORCING STEELS. Final

The U.S. Department of Energy's Office of Scientific and Technical Information

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Steel for the reinforcement and prestressing of concrete ...

13 Specialized tests ... The aim of ISO 15630 (all parts) is to provide all relevant test methods for reinforcing and prestressing steels in one standard series. ... geometrical characteristics applicable to reinforcing bars, rods and wire for concrete.

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Impact toughness of reinforcing steels produced by (i)

2005-9-1  1. Introduction. The dynamic properties of steel reinforcing bars have been the subject of several studies , , , .In this respect, properties such as fatigue behaviour have been extensively investigated, in order to affront the danger of premature failures , , .It is a well-established fact that due to the brittle behaviour of concrete under tension, the tensile stresses must be undertaken by ...

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Dynamic tests of concrete reinforcing steels (Technical ...

Buy Dynamic tests of concrete reinforcing steels (Technical report ; R 394) by Cowell, W. L (ISBN: ) from Amazon's Book Store. Everyday low prices and free delivery on eligible orders.

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Dynamic Strength Properties of Concrete and

2016-9-1  Title: Dynamic Strength Properties of Concrete and Reinforcing Steel Subject to Extreme Loads Author(s): Seongwon Hong and Thomas H.-K. Kang Publication: Structural Journal Volume: 113 Issue: 5 Appears on pages(s): 983-995 Keywords: dynamic increase factor; dynamic strength properties; reinforcing steel Date: 9/1/2016 Abstract: Understanding dynamic strength properties of concrete and ...

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ERDC Knowledge Core: Dynamic tests of large

2018-1-20  All tests were conducted in a 200,000-pound-capacity dynamic loader. Under all loading rates, the breaking strength for all three splice types was greater than the 125 percent of nominal yield required by standards set forth by the American Concrete Institute, the American Welding Society, and the Concrete Reinforcing Steel Institute.

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Experimental tests on reinforced concrete columns

2013-10-1  The dimensions and reinforcing steels layout of specimens are shown in Fig. 1. All RC columns have the same section of 200 × 200 mm and15 mm thickness concrete protective layer. Furthermore, the longitudinal reinforcement grade for all specimens is HRB335 with the strength of 343.4 MPa and the transverse reinforcement strength is 414.3 MPa.

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BRL 0501 Concrete Reinforcing Steels - laboratuar

BRL 0501 is an evaluation directive for concrete reinforcing steels. The conditions in this evaluation guide are taken into account when evaluating businesses applying for documents for steel reinforcement by organizations recognized by the Dutch Accreditation Council.

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High strain rates testing and constitutive modeling of ...

2018-9-10  Dynamic tests at room temperature highlight an increase of strength and strain capacities. ... This research provides new data that starts to cover the lack of information about this widely used reinforcing steel in reinforced concrete structures. ... High strain rate behaviour in tension of different reinforcing steels, inResponse of ...

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Dynamic Tensile Behavior of Steel HRB500E

A series of dynamic tensile tests on HRB500E reinforcing bar were conducted over a wide strain rate range (0.00025–550 s −1). The test results show that HRB500E reinforcing bar is significantly sensitive to strain rate, and the yield stress and ultimate tensile strength

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Dynamic tensile behavior of steel HRB500E reinforcing

In this paper, dynamic tensile tests of HRB500E steel were conducted using an electromechanical universal testing machine and a servo-hydraulic high-speed testing machine. The stress-strain curves at strain rates ranging from 0.00025 to 550 s-1 were obtained where HRB500E steel was found significantly sensitive to strain rate.

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Nonlinear dynamic analysis of reinforced concrete

This state-of-the-art paper discusses nonlinear dynamic analysis of reinforced concrete building structures. Nonlinear analysis of a reinforced concrete building is difficult (a) because inelastic deformation is not confined at critical sections, but spreads throughout the structure; and (b) because stiffness of the reinforced concrete is dependent on a strain history.The paper reviews the ...

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Strain Rate Behavior in Tension of Reinforcing Steels ...

The strain rate effect of reinforcing steel bars is generally indispensable for modeling the dynamic responses of reinforced concrete structures in blast and impact events. A systematic experimental investigation was conducted on the strain rate behavior of reinforcing

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Dynamic tests of concrete reinforcing steels (Technical ...

Buy Dynamic tests of concrete reinforcing steels (Technical report ; R 394) by Cowell, W. L (ISBN: ) from Amazon's Book Store. Everyday low prices and free delivery on eligible orders.

get price

High strain rates testing and constitutive modeling of ...

2018-9-10  Dynamic tests at room temperature highlight an increase of strength and strain capacities. ... This research provides new data that starts to cover the lack of information about this widely used reinforcing steel in reinforced concrete structures. ... High strain rate behaviour in tension of different reinforcing steels, inResponse of ...

get price

Steel for the reinforcement and prestressing of concrete ...

13 Specialized tests ... The aim of ISO 15630 (all parts) is to provide all relevant test methods for reinforcing and prestressing steels in one standard series. ... geometrical characteristics applicable to reinforcing bars, rods and wire for concrete.

get price

Dynamic tensile behavior of steel HRB500E reinforcing

In this paper, dynamic tensile tests of HRB500E steel were conducted using an electromechanical universal testing machine and a servo-hydraulic high-speed testing machine. The stress-strain curves at strain rates ranging from 0.00025 to 550 s-1 were obtained where HRB500E steel was found significantly sensitive to strain rate.

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Dynamic Tensile Behavior of Steel HRB500E

2020-1-2  The strain rate behavior of 500 MPa-grade reinforcing bars from different manufacturers from different countries has been studied, and various formulations to evaluate the dynamic increase factor for yield stress (DIF y) were established based on the test results [7,15,16,17].Even though the formulations were established based on the test data of reinforcing bars with the same strength grade ...

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[PDF] Tensile High Strain-Rate Behavior of Reinforcing ...

The steel was from the Tenza Bridge, a reinforced concrete arch bridge in southern Italy. The behavior of both concrete and reinforcing steel under dynamic loading rates at high strain-rate levels was investigated. Tensile failure tests were performed on steel specimens at different strain rates using a modified Hopkinson bar device.

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Test methods for on-site corrosion rate measurement of ...

2020-3-3  degradation of concrete structures affected by reinforcement corrosion. However, they cannot give information on the actual loss in steel cross section which, at present, only can be assessed by means of direct visual observation. Values of the free corrosion potential or half-cell potential, E corr [V], of the embedded reinforcing steel and of

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Strain Rate Behavior in Tension of Reinforcing Steels ...

The strain rate effect of reinforcing steel bars is generally indispensable for modeling the dynamic responses of reinforced concrete structures in blast and impact events. A systematic experimental investigation was conducted on the strain rate behavior of reinforcing

get price

Mechanical Properties of Reinforcing and Prestressing ...

1996-11-1  Mechanical Properties of Reinforcing and Prestressing Steels after Heating ... can affect the tensile strength and the strain after rupture of the steels normally used in reinforced and prestressed concrete structures. Laboratory tests were carried out to assess the values of these properties after heating. In these tests, steel samples were ...

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Properties of Reinforced Concrete Steel Rebars Exposed

2019-7-31  properties of reinforcing steels used in structures exposed to high temperature could be determined. As seen from Figure 1, temperatures below 500 C have no significant effect on mechanical properties of preheated and cooled S220 steel rebars. The yield strength and splitting tensile strengths of S220 steels were similar up to this temperature.

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