AT 2′ 0″ & 3′ 0″ PANEL SPANS. IN ACCORDANCE WITH ASTM E AND AISI S TESTED FOR: Central States Manufacturing, Inc. Find the most up-to-date version of ASTM E at Engineering Designation: E – 04Standard Test Method for Static Load Testing of Framed Floor or Roof Diaphragm Constructions for Buil.
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Respiratory System completed notes. No mention is made of roof diaphragms and whether the testing for floor diaphragms is applicable to roofs flat or pitched. A variety of I-joist d455, sheathing products, diaphragm configurations, sheathing fasteners, and fastening schedules have been tested to verify shear transfer and deformation performance capabilities.
In summary, the AC14 proposed asgm to required specimen dimensions and numbers of tests need further study and open discussion before the ES Committee can make a rational assessment. This standard is not included in any packages. Figure 3 illustrates these trends for a IBC Table The industry has long recognized that reducing flange thickness beyond a certain threshold has the potential to adversely impact sheathing nail embed9 Table 1.
It should be noted that the actual deformations are less than deformations predicted using asmt default apparent shear stiffness term in SDPWS. The suggested revisions below recognize the critical variables that are specific to a full-scale diaphragm test and complement existing evaluation procedures. A diaphragm construction is an assembly of materials designed to transmit shear forces in the plane of the qstm.
Comparisons on Lines illustrate that, as with sawn lumber, wider framing results in increased capacity. Typical diaphragm test configuration 24 x 24 ft. Performance Trends The compiled database of full-scale I-joist diaphragm tests provides an opportunity to draw com12 parisons between similar test sets.
Given that many of the potential diaphragm failure modes that limit capacity are not typically addressed by a connection analysis, the importance of test-based verification for diaphragm systems that depart significantly from the historical basis seems to be confirmed.
This shall be confirmed by running at least one unsheathed diaphragm test as outlined in Section 9.
Research and Testing – Central States Mfg, Inc.
The design codes permit six different diaphragm configurations to be constructed. Your Alert Profile lists the documents that will be monitored. The original rationalizations for these tables were based on an analysis of sheathing and attachment schedules for lumber-framed diaphragms with plywood panel sheathing. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. For that reason ASTM E permits testing a single replication when multiple configurations are being evaluated.
Waltz and Dolan noted these same features. Thank you for your consideration of these comments and revisions. Subscription pricing is determined by: Special Design Provisions for Wind and Seismic.
ACR1 #4 – ICC-ES
It is not intuitively obvious that they are all equal when it comes to I-joist diaphragm performance. This shows that selection of a blocking material is likely as important as selection of a joist and should be consistent with the design assumption.
The f455, as written, requires the testing of each case configuration as tested unless a Case 5 configuration is tested. One of the primary functions e45 a light-frame floor or roof is to serve as a diaphragm that collects in-plane lateral load and transfers it to the shear walls and foundation elements.
National Design Specification for Wood Construction.
A primary function of a light-frame floor or roof is to serve as a diaphragm that collects lateral load and transfers it to the shear walls and foundation. Failure modes — framing splitting from panel prying Case 1 shown. Synopsis — What do we know about the fundamentals of testing wood-frame diaphragms? American Society for Testing and Materials. However, a diaphragm on a concrete foundation is not subject to those boundary conditions and even the boundary conditions of the framed second-floor diaphragm differs from the model in that the diaphragm is sitting on springs the shear walls rather than a pin and roller, and the end rotations are constrained by the supported walls.
AC14-0611-R1 #4 – ICC-ES
Country Club Hills, IL. The impact of the proposed revisions proposed in Section 2.

A cantilever beam analogy also works well as a simple mechanics model. This test method will help determine structural diaphragm properties needed for design purposes. The fullscale tests of Line 16 suggest that the smaller diameter ring shank nail actually out-performed the larger diameter common nail. As the voice of the U. The magnitude of this rotation is typically consistent between diaphragm tension and compression chords. Notes and footnotes in tables and w455 are requirements of this standard.
Historical Version s – view previous versions of standard.

Lateral Tests on Plywood Sheathed Diaphragms. Documents Flashcards Grammar checker. Xstm diaphragm construction is an assembly of materials designed to transmit shear forces in the plane of the construction.
This highlights the importance of flange splitting and the need for the manufacturer to address the resulting capacity limitations in their design guidance. The Case 1 diaphragms tested exhibited similar behavior with the exception that panel bearing and crushing were also observed between interlocking panel rows.
As suggested by Lines 14 and 15, testing other sizes may result in slightly different answers.
Page 3 May 20, 4 Add 2. Figure 5 illustrates a comparison between calculation methodologies and the measured behavior for a Case 5 I-joist diaphragm configuration that conservatively combined large diameter fasteners with a tight spacing that tends to promote splitting. Revise, expand, and clarify 2. Bibliography on Lumber and Wood Panel Diaphragms. This article summarizes some of the rationalization and limitations associated with I-joist wstm for diaphragm construction.
