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Standard Test Method for Evaluating Glass Breakage Probability Under the Influence of Uniform Static Loads by Proof Load Testing
Automaticky přeložený název:
Standardní zkušební metoda pro hodnocení rozbití skla Pravděpodobnost pod vlivem jednotných statické zatížení doklad Load Testing
NORMA vydána dne 1.6.2014
Označení normy: ASTM E997-14
Poznámka: NEPLATNÁ
Datum vydání normy: 1.6.2014
Kód zboží: NS-48735
Počet stran: 11
Přibližná hmotnost: 33 g (0.07 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
curtain walls, destructive testing, doors, exterior windows, glass performance, performance testing, structural performance, uniform static loads, ICS Number Code 81.040.20 (Glass in building)
Significance and Use | ||||
5.1 Glass specimens to be tested shall be mounted in a standard test frame with four sides supported, or in a test frame designed to represent specific glazing conditions. 5.2 Loads on glass in windows, curtain walls, and doors may vary greatly in magnitude, direction, and duration. Any design load (wind, snow, etc.) that can reasonably be applied to the test specimens or transformed into an equivalent uniform design load can be considered. Load transformation techniques are addressed in the literature (1, 2, 3).3 5.3 The strength of glass varies with many different factors including surface condition, load duration, geometry, relative humidity, and temperature (4). A thorough understanding of those strength variations is required to interpret results of this test method. |
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1. Scope | ||||
1.1 This proof load test method is a procedure to determine, with a 90 % confidence level, if the probability of breakage under design loads for a given population of glass specimens is less than a selected value. It is not intended to be a design standard for determining the load resistance of glass. Practice E1300 shall be used for this purpose. 1.2 This test method describes apparatus and procedures to select and apply a proof load to glass specimens, to determine the number of glass specimens to be tested, and to evaluate statistically the probability of breakage. This test method may be conducted using the standard test frame specified herein or a test frame of the user's design. 1.3 Proper use of this test method requires a knowledge of the principles of pressure measurement and an understanding of recommended glazing practices. 1.4 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. 1.5 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 7. |
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2. Referenced Documents | ||||
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