TABLE OF CONTENTS The general use of nails in the construction of horizontal diaphragms and shearwalls was addressed in previous chapters. In addition, the two basic forms of nailed connections in structural applications ( shear and withdrawal) were described in the introductory chapter on wood connections. It is recommended that the reader review the joint configurations, nomenclature, and yield modes for these connections in Chap. 11 before proceeding with the detailed design provisions given here.
The usual practice in the United States is to design nailed connections when the loads to be transmitted are relatively small, and to use other types of fasteners (e.g., bolts) for joints with larger loads. This is the general approach to connection design covered in this book. However, this contrasts with recent practice of some designers in Europe and New Zealand to also use nails in connections subjected to large forces. Obviously connections with heavy loads require the use of a large number of nails, and special fabrication practices are necessary. The preference for these types of connections is based on the expected ductile behavior of nailed joints and a corresponding concern about the possible lack of ductility in certain bolted connections, especially those involving large-diameter bolts.
The basic concept of a nail attaching one member to another member has undergone little change, but many developments have occurred in the configuration of nails and in the methods of installation. For example, Ref. 12.14 lists over 235 definitions and descriptions relating to the use of...
