PAGE 1 OF One of the design requirements of glass used in buildings is to resist the loads created by wind and snow. ASTM E to the French and ASTM standard, that in some cases admit a lower design thickness for glass, then for the same . NF P [5] ASTM E – Glass strength evaluation prior to ASTM E Twelve U.S. glass thickness designations were covered from millimetre to millimetre.

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The values given in parentheses astj for mathematical conversions to e1300-2 units that are provided for information only and are not considered standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

In addition, considerations set forth in building codes along with criteria presented in safety glazing standards and site specific concerns may control the ultimate glass type and thickness selection. Note that Section 6 references a Pb less than or equal to 0.

Convert kPa to inch-pound units by multiplying 2. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Interlayers comprised of differing polymers in multiple layers are not covered in this procedure. If the charts are used to predict the strength of freshly manufactured glass, the results may be conservative. Click Here to join Eng-Tips and talk with other members!


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The question in specifics is in regards to the caution stated in X1. Close this window and log in. The beam is fixed sstm one long edge cantilever and is subjected to a line load, P, of 0. This practice shall not apply to other applications including, but not limited to, balustrades, glass floor panels, aquariums, structural glass members, and glass shelves.

Effective thickness for stress: Is someone able to provide some background on this caution statement or point me in the direction of which reference in the Standard I should pursue to get additional information on the caution statement? Register now while it’s still free!

These factors include but are not limited to: This is due to sealed air space pressure differences caused by changes in: Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors.

E – 12ae1 – Free Download PDF

The windows are being checked for wind loads only. Referenced Documents purchase separately The documents listed below are referenced aatm the subject standard but are not provided as part of the standard. Download Now Defense manufacturing is all about project manufacturing and project accounting. For glass simply supported on three sides, e13300-12 ratio of the length of one of the supported edges perpendicular to the free edge, to the length of the free edge, is equal to or greater than 0.

The proposed laminate construction is 10 mm glass 1. Use Vallabhan and Chou 1 for alternate method. Report “E – 12ae1”. D Practice for Plastics: Are you an Engineering professional?

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NOTE 4—The user is recommended to limit the combined width of both air spaces in the IG unit to less than or equal to 25 mm 1 in. Windows I usually work with are 24 to 36 inch base dimension.

If the LR astj less than the specified load, then other glass types and thicknesses may be evaluated to find a suitable assembly having LR equal to or exceeding the specified design load. Appendix X1 provides additional procedures to determine maximum lateral deflection for glass simply wstm on four sides.

E 1300 – 12ae1

Contact the interlayer manufacturer for appropriate shear modulus values. The glass gets stiffer as it deflects. The outboard lite Lite R1300-12. Effective thickness for deflection: An approximate allowable edge stress value for a 3-s duration can be found in Table X7. Substituting into Eq X9. Significance and Use 5. See Appendix X3 for basis of these values.

In development of the NFL charts presented in upper charts of Fig. Under short duration loads E1300–12 is assumed to behave in a monolithic-like manner.

The factor for all IG units is: The NFL charts were developed using a failure prediction model for glass 4, 5. No recommendations are made in this practice regarding acceptable lateral deflections.

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