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Normas ASTM – AENOR
ASTM E2126-19

ASTM E2126-19

Standard Test Methods for Cyclic (Reversed) Load Test for Shear Resistance of Vertical Elements of the Lateral Force Resisting Systems for Buildings

Fecha:
2019-08-20 /Active
Significance and Use:

5.1 These cyclic test methods are intended to measure the performance of vertical elements of the lateral force resisting system subjected to earthquake loads. Since these loads are cyclic, the loading process simulates the actions and their effects on the specimens.

5.2 The monotonic test is intended to provide data from a continuous displacement ramp loading of a matched test specimen with boundary conditions identical to the specimens that will be cyclically tested. The results from the monotonic test, when employed, are primarily intended for defining the amplitudes of load cycles for the three cyclic protocols.

Note 2: The monotonic test is not intended to serve as an equivalent alternative to the cyclic protocols of this Test Method or the procedures of Test Methods E72 or Practice E564.

Scope:

1.1 These test methods cover the evaluation of the shear stiffness, shear strength, and ductility of the vertical elements of lateral force resisting systems, including applicable shear connections and hold-down connections, under quasi-static cyclic (reversed) load conditions.

1.2 These test methods are intended for specimens constructed from wood or metal framing braced with solid sheathing or other methods or structural insulated panels.

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords:
cyclic loads; earthquake; framed walls; lateral-force resisting systems; portal frames; racking loads; rigid support; shear displacement; shear stiffness; shear strength; structural insulated panels;
47,2
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