- TORQUE GUIDLINE FOR HILTI ANCHORS FULL
- TORQUE GUIDLINE FOR HILTI ANCHORS CODE
- TORQUE GUIDLINE FOR HILTI ANCHORS FREE
This is a commonly accepted standard practice within the industry but is not recommended by Simpson Strong-Tie. Keep in mind that expansion anchors are often torque tested for verification. In the event that special pretensioning is required, the design engineer should have carefully designed the anchor assembly specifically for that purpose and there should be detailed instructions so that the pretensioning is carried out properly. Before we get into tension proof load testing, allow me a quick aside about torque testing.
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It means, that in normal circumstances, the normal effort of an ironworker with a regular spud wrench is sufficient to tighten the nuts on anchor bolts. Although the design of pretensioned anchorage devices is beyond the scope of this manual, it should be noted that pretension should not be specified for anchorage devices that have not been properly designed and configured to be pretensioned.” It also covers the entire scope of anchor design.
TORQUE GUIDLINE FOR HILTI ANCHORS CODE
EN 1992-4 explicitly points out that the code covers both structural and non-structural applications if there is a safety concern. Also, loss of pretension due to creep in the concrete must be taken into account. Let’s go through some of the changes you will experience when switching from the ETAG 001 guideline to the EN 1992-4 standard.
TORQUE GUIDLINE FOR HILTI ANCHORS FREE
The shaft of the anchor rod must be free of bond to the encasing concrete so that the rod is free to elongate as it is pretensioned. When pretensioning of anchor rods is specified, care must be taken in the design of the column base and the embedment of the anchor rod. 1-80 I I Anchor Fastening Technical Guide 2016 65 3.2.3.1 Product description HIT-HY 200 adhesive is an injectable, two-component, hybrid adhesive. Some examples of applications that may require pretension include structures that cantilever from concrete foundations, moment-resisting column bases with significant tensile forces in the anchor rods, or where load reversal might result in the progressive loosening of the nuts on the anchor rods. (US) 1-80 I en español 1-80 I Hilti (Canada) Corp. The actual tightening torque varies with ambient conditions (the bolt being. When, in the judgment of the owner’s designated representative for design, the performance of the structure will be compromised by excessive elongation of the anchor rods under tensile loads, pretension may be required. The values illustrated on this chart are provided for reference purposes.
TORQUE GUIDLINE FOR HILTI ANCHORS FULL
That is, most anchor rod nuts can be installed using the full effort of an ironworker with an ordinary spud wrench. This condition can be achieved by following the same practices as recommended for snug-tightened installation in steel-to-steel bolted joints in the RCSC Specification. This is the one of the key components to safely erecting and accurately plumbing the building. The impor-tance of the accurate placement of anchor rods cannot be over-emphasized. The anchor rod nuts should be “drawn down tight” as columns and bases are erected. anchor rod setting procedures and tolerances. “The majority of anchorage applications in buildings do not require special anchor rod nut installation procedures or pretension in the anchor rod. The AISC Steel Construction Manual, 13th Edition has this to say about anchor rod nut installation.