A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Overhead Installation of Injection-Type Adhesive Anchors
The installation of adhesive anchors in horizontal to upwardly inclined orientations is the focus of several code provisions in ACI 318-14. These provisions are intended to ensure that adhesive anchors installed in these orientations (referred to as "overhead installation" in this article) are safe and reliable. The provisions also include requirements on the qualification of the anchor system according to the ACI 355.4-11 standard, design for sustained tension loads, and the training and certification of workers that perform the installation of such anchors. A recent laboratory study, in which the two currently available methods for installing injection-type adhesive anchors (the most common adhesive anchor type) in the overhead position are assessed for their effectiveness, is summarized herein. This study was undertaken in the context of mounting anecdotal evidence that overhead installation of injection-type adhesive anchors without the aid of a device such as a piston plug may be unworkable and therefore unsafe.
Overhead Installation of Injection-Type Adhesive Anchors
The installation of adhesive anchors in horizontal to upwardly inclined orientations is the focus of several code provisions in ACI 318-14. These provisions are intended to ensure that adhesive anchors installed in these orientations (referred to as "overhead installation" in this article) are safe and reliable. The provisions also include requirements on the qualification of the anchor system according to the ACI 355.4-11 standard, design for sustained tension loads, and the training and certification of workers that perform the installation of such anchors. A recent laboratory study, in which the two currently available methods for installing injection-type adhesive anchors (the most common adhesive anchor type) in the overhead position are assessed for their effectiveness, is summarized herein. This study was undertaken in the context of mounting anecdotal evidence that overhead installation of injection-type adhesive anchors without the aid of a device such as a piston plug may be unworkable and therefore unsafe.
Overhead Installation of Injection-Type Adhesive Anchors
John Silva (author)
2016
Article (Journal)
English
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