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2. Glossary of prestressed concrete terms - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_prestressed...

   [1]: 4 anchor recess A formwork blockout or recess former fitted to the edge formwork of a post-tensioned concrete member, and that creates a temporary void space external to the prestressing anchor to allow the anchor block or similar to be fitted after formwork stripping. [3]: 32 anchor set See wedge set. anchorage assembly

3. Anchorage in reinforced concrete - Wikipedia

   en.wikipedia.org/wiki/Anchorage_in_Reinforced...

   Because the actual bond stress varies along the length of a bar anchored in a zone of tension, most international codes of specifications [2] [3] [4] use the concept of development length rather than bond stress. The same concept applies to lap splice length mentioned in the codes where splices (overlapping) provided between two adjacent bars ...

4. Tieback (geotechnical) - Wikipedia

   en.wikipedia.org/wiki/Tieback_(geotechnical)

   The magnitude of total anchor force required in the tieback can be determined by analyzing the soil and groundwater properties as well as sources of external loads applied to the system. [ 2 ] The bond length of the tieback must extend beyond the potential critical failure surface of the soil.

5. Offshore embedded anchors - Wikipedia

   en.wikipedia.org/wiki/Offshore_embedded_anchors

   A deep-penetrating anchor (DPA) is conceptually similar to a torpedo anchor: it features a dart-shaped, thick-walled, steel cylinder with flukes attached to the upper section of the anchor. A full-scale DPA is approximately 15 metres (49 ft) in length, 1.2 metres (4 ft) in diameter, and weighs on the order of 50–100 tonnes (49–98 long tons ...

6. Anchor bolt - Wikipedia

   en.wikipedia.org/wiki/Anchor_bolt

   They can be further divided into two categories: [3] torque controlled: the anchor is inserted into the hole and secured by applying a specified torque to the bolt head or nut with a torque wrench. A particular sub-category of this anchor is called wedge type. As shown in the figure, tightening the bolt results in a wedge being driven up ...

7. Concrete cone failure - Wikipedia

   en.wikipedia.org/wiki/Concrete_cone_failure

   The tension failure loads predicted by the CCD method fits experimental results over a wide range of embedment depth (e.g. 100 – 600 mm). [2] Anchor load bearing capacity provided by ACI 349 does not consider size effect, thus an underestimated value for the load-carrying capacity is obtained for large embedment depths.

8. Split pin - Wikipedia

   en.wikipedia.org/wiki/Split_pin

   The length L of the split pin is defined as the distance from the end of the shortest tine to the point of the eyelet that contacts the hole. The most common type of split pin is the extended prong with a square cut, but extended prongs are available with all of the other types of ends.

9. Molly (fastener) - Wikipedia

   en.wikipedia.org/wiki/Molly_(fastener)

   Figure 1 of the original patent for the molly bolt, U.S. Patent No. 2,018,251. The molly bolt was patented in 1934 by George Frederick Croessant. [3] Although his patent acknowledges that expandable fasteners of this general kind were already known, Croessant's patent is intended to provide "an improved and adequate anchoring grip that may be retightened if necessary and that will permit ...