Reinforcement A-III

ReinforcementA-III

-----(In compliance withSec. 2.17 – 2.24 and Appendix 1 of 2.03.01 – 84*)-----

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Class of reinforcement – A-III

Regulatory document for the quality of reinforcement - GOST 5781—82

Type of reinforcement – hot-rolled deformed bars

Diameters of reinforcement in mm (Grade of steel) - Æ 6 – 22 (32G2Rps),

Æ 6 – 40 (35GS, 25G2S).

Field of application of the classA-III reinforcement:

In constructions with non-prestressed reinforcement:

·  as transverse reinforcement, and as longitudinal reinforcement if other types of non-prestressed reinforcement cannot be used;

·  as welded reinforcing mats;

·  under a pressure of gases, liquids, or dry granular materials.

In constructions with prestressed reinforcement:

·  not used.

Design characteristics of the class A-III reinforcement for Æ 6-8 mm, in MPa (kg/cm² ):

Design strength of the reinforcement:

·  against tension for limit state of first group, R_s - 365 (3750)

·  against compression for limit state of first group, R_sc - 355 (3600)

·  transverse, against tension for limit state of first group, R_sw - 285* (2900)

·  against tension for limit state of second group, R_s,ser - 390 (4000)

Modulus of elasticity of reinforcement, E_s – 200000 (2000000)

Design characteristics of the class A-III reinforcement forÆ 10-40 mm, in MPa (kg/cm² ):

Design strength of the reinforcement:

·  against tension for limit state of first group, R_s - 355 (3600)

·  against compression for limit state of first group, R_sc - 365 (3750)

·  transverse, against tension for limit state of first group, R_sw - 290* (3000)

·  against tension for limit state of second group, R_s,ser - 390 (4000)

Modulus of elasticity of reinforcement, E_s – 200000 (2000000)

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* -- see notes to Table 22* of SNiP 2.03.01 – 84*

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Class of reinforcement – At-IIIS

Regulatory document for the quality of reinforcement - GOST 10884—81

Type of reinforcement – thermomechanically hardened deformed bars

Diameters of reinforcement in mm (Grade of steel) -  Æ 10 – 32 (BSt5ps, BSt5sp, VSt5ps, VSt5sp)

Field of application of the classAt-IIIS reinforcement:

In constructions with non-prestressed reinforcement:

·  as transverse reinforcement, and as longitudinal reinforcement if other types of non-prestressed reinforcement cannot be used;

·  as welded reinforcing mats;

·  under a pressure of gases, liquids, or dry granular materials.

In constructions with prestressed reinforcement:

·  not used.

Design characteristics of the classAt-IIIS reinforcementforÆ 6-8 mm, in MPa (kg/cm² ):

Design strength of the reinforcement:

·  against tension for limit state of first group, R_s - 365 (3750)

·  against compression for limit state of first group, R_sc - 355 (3600)

·  transverse, against tension for limit state of first group, R_sw - 285* (2900)

·  against tension for limit state of second group, R_s,ser - 390 (4000)

Modulus of elasticity of reinforcement, E_s – 200000 (2000000)

Design characteristics of the classAt-IIIS reinforcement forÆ 10-40 mm, in MPa(kg/cm² ):

Design strength of the reinforcement:

·  against tension for limit state of first group, R_s - 355 (3600)

·  against compression for limit state of first group, R_sc - 365 (3750)

·  transverse, against tension for limit state of first group, R_sw - 290* (3000)

·  against tension for limit state of second group, R_s,ser - 390 (4000)

Modulus of elasticity of reinforcement, E_s – 200000 (2000000)

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* -- see notes to Table 22* of SNiP 2.03.01 – 84*

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Class of reinforcement – A-IIIv

Type of reinforcement - hard-drawn deformed bars

Diameters of reinforcement in mm (Grade of steel) -  Æ 6 – 40 (25G2S, 35GS)

Field of application of the class A-IIIv reinforcement:

In constructions with non-prestressed reinforcement:

·  as longitudinal tensioned reinforcement in spliced reinforcing mats

In constructions with prestressed reinforcement:

·  as prestressed reinforcement of ferroconcrete parts;

·  as prestressed reinforcement of ferroconcrete parts under a pressure of gases, liquids, or dry granular materials.

Design characteristics of the classA-IIIv reinforcement, with the elongation and stress monitored, in MPa (kg/cm² ):

Design strength of the reinforcement:

·  against tension for limit state of first group, R_s - 490 (5000)

·  against compression for limit state of first group, R_sc - 200 (2000)

·  transverse, against tension for limit state of first group, R_sw - 390 (4000)

·  against tension for limit state of second group, R_s,ser - 540 (5500)

Modulus of elasticity of reinforcement, E_s – 180000 (1800000)

Design characteristics of the class A-IIIv reinforcement, with only the elongation monitored, in MPa (kg/cm² ):

Design strength of the reinforcement:

·  against tension for limit state of first group, R_s - 450 (4600)

·  against compression for limit state of first group, R_sc - 200 (2000)

·  transverse, against tension for limit state of first group, R_sw - 360 (3700)

·  against tension for limit state of second group, R_s,ser - 540 (5500)

Modulus of elasticity of reinforcement, E_s – 180000 (1800000)