Design of Bolted Connections per the 2015 NDS - STRUCTURE mag
Topics include connection design philosophies and behavior, an overview of 2015 NDS provisions related to bolt design including local stresses in fastener groups, and a detailed design example.
American Wood Council’s (AWC) 2015 National Design Specification® (NDS®) for Wood Construction. Topics include connection design philosophies and behavior, an overview of 2015 NDS provisions related to bolt design including local stresses in fastener groups, and a detailed design example.
Bolted Connections: A Comprehensive Guide for Structural …
Discover the intricate world of bolted connections in steel structures. This in-depth guide unveils design intricacies, calculations, standards, and real-world examples, empowering structural engineers to create robust, reliable, and economical bolted connections.
Guideline for Bolted Joint Design & Analysis - Engineering Library
Several methods for the design and analysis of bolted joint connections are presented. Guidance is provided for general bolted joint design, computation of preload uncertainty and preload loss, and the calculation of the bolted joint factor of safety.
new specifications for structural joints using ASTM A325 or A490 bolts, one based on allowable stress principles and the other on a load factor and resistance design philosophy.
A joint diagram may help illustrate what happens as we apply our preload and the effects of external loads. In “Bolted Joint Diagram 1”, as the bolt is tightened, the bolt elongates (∆B). Due to the internal forces resisting the elongation, a tension force or preload is produced (Fp).
DESIGN OF ALL-BOLTED EXTENDED DOUBLE ANGLE, SINGLE ANGLE, AND TEE SHEAR CONNECTIONS This report presents a methodology for the design of all-bolted extended double angle, single angle, and tee shear connections. The report covers only the design of extended connections that involve beams and girders, but the principles set forth can be applied to
A bolt head with no marking indicates a Grade 2 bolt, 3 markings indicates a Grade 5 bolt, and 6 markings indicates a Grade 8 bolt (the simple shortcut is to take the number of radial lines and add 2 to get the grade number).
• Table 7-10 on page 7-33 of the AISC Manual gives the design shear of one bolt. Different bolt types (A325, A490), thread condition (included or excluded), loading type (single shear or double shear), and bolt diameters (5/8 in. to 1-1/2 in.) are included in the Table.
Bolt geometry guidelines must be followed as specified by AISC. Special provisions are also provided for load conditions where bolts are load in both shear and tension. Each of items A, B, C, and D are summarized below.