Cast-in Shear Wall Anchor

Abstract

A kit for enabling rapid and efficient installation of cast-in shear wall anchors is disclosed. The kit comprises a pre-manufactured base plate, a threaded rod segment of a predetermined length, a threaded coupler and a plug with a marker feature. The threaded rod segment is installed into the base plate and a threaded coupler is installed onto the threaded rod segment. The plug is installed into the threaded coupler. The plug features a marker feature that is preferably flexible, intended to protrude above the poured concrete surface to aid in locating the anchor after the concrete is cured, while the rest of the assembled anchor remains below the surface. The flexible nature of the marker feature prevents it from interfering with finishing equipment. The threaded rod segment is of a length predetermined to position the top of the threaded coupler just below the poured concrete surface in a typical installation. A range of on-site adjustment is possible by moving the threaded coupler up or down on the threaded rod segment.

1 . A Shear Wall Anchor kit, comprising:
 a base plate having a means of structurally retaining a threaded rod and further having a means of being attached to the floor of a concrete form;   a threaded rod segment of a predetermined length;   a threaded coupler; and   a plug configured to be installed in said threaded coupler.   
     
     
         2 . The Shear Wall Anchor kit of  claim 1  wherein said plug comprises a marker feature. 
     
     
         3 . The Shear Wall Anchor kit of  claim 1  wherein said means of structurally retaining a threaded rod is a flange nut. 
     
     
         4 . The Shear Wall Anchor kit of  claim 3  wherein said base plate is formed from plastic by means of injection molding. 
     
     
         5 . The Shear Wall Anchor kit of  claim 2  wherein said marker feature is at least a plastic whisker. 
     
     
         6 . The Shear Wall Anchor kit of  claim 2  wherein said marker feature is a plurality of plastic whiskers. 
     
     
         7 . A method of installing a Shear Wall Anchor comprising the steps of:
 (a) positioning a threaded coupler in the concrete form entirely below the level of the finished concrete surface by means of a support,   (b) installing a plug in said threaded coupler, said plug having a marker feature, said marker feature being positioned at least in part above the level of the finished concrete surface,   (c) pouring, curing and finishing the concrete and subsequently removing the form,   (d) locating the anchor by means of said marker feature and exposing said threaded coupler for access by removing said plug.   
     
     
         8 . The method of  claim 7  wherein said support is a threaded rod section of a predetermined length, coupled to a base plate. 
     
     
         9 . The method of  claim 7  wherein said support, said threaded coupler and said plug are supplied as a kit.