ASTM WK9861

    Revision of E455 - 04 Standard Method for Static Load Testing of Framed Floor or Roof Diaphragm Constructions for Buildings

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    Active Standard: E455 - 11

    Developed by Subcommittee: E06.11 | Committee E06 | Contact Staff Manager



    WK9861

    1. Rationale

    Reason Statement for Changes to ASTM E 455: 1.\tSection 1.1 was revised to emphasize the scope of the standard applies to the shear-resisting diaphragm web, not other diaphragm elements such as chords. 2.\tAdd Section 3.2 with a definition for diaphragm. This definition is based on ICC-ES AC43. 3.\tAdd and revise terminology in Section 3.3 to coordinate better with rest of the standard. 4.\tRevise Section 4.0 to characterize the diaphragms in greater detail. 5.\tAdd bearing reaction type cantilever frames to Section 6.1.2.2; and designate current cantilever frames as pinned reaction types in Section 6.1.2.1. This is prompted by frames currently available with these characteristics. 6.\tTo better estimate influence of intermediate joints and attachments, increase the number of diaphragm elements from four to five and increase the minimum dimension to 12 feet in Sections 6.1.3.1; and increase the number of diaphragm elements from four to six in Section 6.1.3.2. This change is based on reexamination of historical data on steel deck diaphragm testing. 7.\tAdd Note 2 discussing the need to minimize out of plane movement, as shown in Section 9.2. 8.\tAs loads at reactions cannot be measured readily, i.e., how are loads and deformations measured at hinge, loading and stiffness calculations are accomplished using the applied load Pu. Means to adjust Pu based on frame stiffness are more clearly described, in Sections 10.1.1 and 10.1.2.2. 9.\tAdd procedures for determining deformation for setup shown in Figure 5, in Section 10.1.2.1. 10.\tIntroduce fixed point for determining shear stiffness, G , based on 0.4 Pu. in Section 10.1.2.2. 11.\tMany editorial revisions throughout. 12.\t Delete Table 1 as the information is superfluous to the test method. 13.\t Revise Figures 2 and 3 to make deformation measuring device locations consistent with Section 10. 14.\t Include additional configurations for cantilever testing: bearing reaction in Section 6.1.2.2 and Figure 3. 15.\tAdd centerline deformation measurement location to Figure 4, as information on the peak deformation is often needed. 16.\tInclude additional means to measure deformation of cantilever testing: Figure 5.


    Keywords

    connections; framed floor; roof diaphragm; static shear;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    12-20-2005

    Technical Contact:
    Brian Gerber

    Item:
    001

    Ballot:
    E06 (14-06)

    Status:
    In Balloting

    Item:
    001

    Ballot:
    E06 (11-01)

    Status:
    Ballot Item Approved as E455-2011 and Pending Publication

    Item:
    002

    Ballot:
    E06 (10-01)

    Status:
    Ballot Item Approved as E455-2010 and Pending Publication

    Item:
    005

    Ballot:
    E06 (10-01)

    Status:
    Ballot Item Approved as E455-2010 and Pending Publication

    Item:
    006

    Ballot:
    E06 (10-01)

    Status:
    Ballot Item Approved as E455-2010 and Pending Publication