Standard Test Method for Evaluating Wind Safety and Durability of Market Umbrellas

Importancia y uso:

5.1 These test methods establish standard procedures designed for evaluating the performance wind safety and durability characteristics of MUs.

5.2 These test methods are suitable for both end users and manufacturers to evaluate performance characteristics of MUs and base mounting components.

5.2.1 End users may use these test methods to determine how well MUs and base components meet their particular application and conditions of use.

5.2.2 Manufacturers of MUs and base mounting components may use these test methods to determine the wind performance characteristics in existing or proposed designs.

5.3 Procedure A is an evaluation of MU structural integrity (pole, frame, canopy, and base components) by subjecting the MU to a uniform wind generated by a wind tunnel. Procedure B is an evaluation of MU and base component durability by subjecting the MU to a uniform wind generated by a wind tunnel for a fixed period of time. Each procedure is used to rate MU and base stanchion performance using the Beaufort Scale for users to be able to correlate the wind speed safety and durability determined in the testing to visual and subjective observation of the area of uses of the MU.

5.4 Results from use of these test methods on one type of MU and base components are not comparable to other test results on a different MU due to differences in MU materials and designs used for poles, frames, canopies, vents, and hubs as well as base weights, shapes, and holding mechanisms.

5.5 These test methods are not intended to assess cleaning or other weather stress resulting from wear and tear in an actual use environment.

5.6 End users and manufacturers of MU and base components should consider these test methods to be minimum procedures for evaluating MU and base component wind safety and durability characteristics as a wind tunnel procedure is considered to produce the most accurate wind pressures of any method according to ASCE/SEI 7-10 Wind Tunnel Procedure. Users of these test methods may wish to consider additional tests and procedures that relate directly to their application such as finite element analysis software.

5.7 Each buyer of a MU should establish its own criteria for assessing acceptable safety and durability performance.

Subcomité:

F15.79

Volúmen:

15.11

Número ICS:

97.130.99 (Other shop fittings)

Palabras clave:

durability; market umbrellas; safety; wind tunnels;