Article Applying Appendix D

74 10fax it to u below and ecn a m e r seattle january

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Unformatted text preview: document, fill out the information= 0.74 < 1.0fax it to u below and ψec,N = = a m E R seattle January 2008 2e´ . 2H1.55″ 608-524-4432N 1+ 1+ 3hef 3H3″ Yes, the ad Equation e. looks fin D-9 No, we require the following changes: When using post-installed anchors located close to the edge of a relatively thin slab that connect plates with eccentric loads, If we recieve no fax within 48 hours of this email, we wi using Appendix D no change necessary and will run t can become relatively assume that there is complex. The ψc,N fThank for post-installed actor you for your assistance. ad as presented here. anchors highlights a unique feature of this appendix. In order for post-installed anchors to be designed by ACI 318, post-installed anchors have to be tested in accordance with ACI 355.2, Qualification of Post-Installed Mechanical Anchors in Concrete. ACI 355.2 defines a regime of three major test categories; reference tests, reliability test, and service-condition tests. Reference tests are used to establish the baseline performance on anchors under ideal conditions. Reliability tests are performed to establish that anchors are capable of safe, effective behavior under adverse installation and service conditions. Service-condition tests are used to establish that anchors can resist unique in-place effects, such as seismic loads. The results of reliability test are compared to those from the reference tests to determine anchor categories, which in turn lead to a range of j factors in section D.4 of Appendix D. Factors can be as low as 0.45 for anchors with low reliability. The complete results of an ACI 355.2 testing program are documented by the anchor manufacturer in a data sheet similar to the example shown in Figure 4. This data sheet includes; dimensional information such as diameter, spacing and embedment; load capacities for steel failure, pull-through, etc; Characteristic Symbol Units Nominal anchor diameter Installation Information do Outside diameter in. :...
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