Tag Archive for Tag: Fastener

Tag: Fastener Fasteners

Two basic types of fasteners are typically used in construction, bolts and welds. Both are used in the fabricating shop and on the job site in connections joining individual members. Welds are also used to fasten together components of built-up members. Bolts, however, are more commonly used for field connections, and welds, for shop work. Rivets, which were once widely used for main

View Article...

Tag: Fastener Installation of Fasteners

All parts of a connection should be held tightly together during installation of fasteners. Drifting done during assembling to align holes should not distort the metal or enlarge the holes. Holes that must be enlarged to admit fasteners should be reamed. Poor matching of holes is cause for rejection. For connections with high-strength bolts, surfaces, when assembled, including those adjacent

View Article...

Tag: Fastener Edge Distance of Fasteners

Minimum distances from centers of fasteners to any edges are given in Tables 5.7 and 5.8. The AISC specifications for structural steel for buildings have the following provisions for minimum edge distance: The distance from the center of a standard hole to an edge of a connected part should not be less than the applicable value from Table 5.7 nor

View Article...

Tag: Fastener Fastener Spacing

Pitch is the distance (in) along the line of principal stress between centers of adjacent fasteners. It may be measured along one or more lines of fasteners. For example, suppose bolts are staggered along two parallel lines. The pitch may be given as the distance between successive bolts in each line separately. Or it may be given as the distance,

View Article...

Tag: Fastener Minimum Number of Fasteners

In buildings, connections carrying calculated stresses, except lacing, sag bars, and girts, should be designed to support at least 6 kips. In highway bridges, connections, including angle bracing but not lacing bars and handrails, should contain at least two fasteners. Web shear splices should have at least two rows of fasteners on each side of the joint. In railroad bridges,

View Article...

Tag: Fastener Fastener Holes

Standard specifications require that holes for bolts be 1⁄16 in larger than the nominal fastener diameter. In computing net area of a tension member, the diameter of the hole should be taken 1⁄16 in larger than the hole diameter. Standard specifications also require that the holes be punched or drilled. Punching usually is the most economical method. To prevent excessive

View Article...