This eCourse will address all aspects that structural engineers, supervisors and inspectors should know when it comes to bolting, including information on AS 4100, NZS 3404.1, AS/NZS 5100.6, AS/NZS 1252 and EN 14399-X as applicable to Australian steel construction. The eCourse will not only review existing Standards, but also introduce new and innovative methods that save time, reduce cost, and improve the efficiency and quality of bolted connections.
Presented by Robert E. Shaw Jr, President of Steel Structures, Technology Centre (USA), this 14-hour eCourse will also delve into the numerous problems encountered in bolted connections and address the “hot topic” of the conformance of steel materials for structural bolting applications.
Why is this Important: Achieving satisfactory performance in bolted joints involves the selection and verification of bolting materials, appropriate joint design, proper installation and quality assurance. In Australia, steel structures are required to be fabricated and erected in accordance with AS/NZS 5131 Structural steelwork – Fabrication and erection. This Standard references a range of normative standards such as AS/NZS 1252, specifies quality requirements in accordance with the Construction Categories CC1 to CC4 and defines competency requirements for people involved in all operations including erection and bolting. While installation of bolts is performed by the technical personnel under the supervision of the Bolting Inspector or Supervisor, Structural Engineers responsible for the project should also be familiar with all key aspects of bolting installation and inspection.
Course Content:
Part 1: Bolted Connections
⦁ Bolted connections in structural systems
⦁ Selecting the appropriate bolted joint - bearing-type snug tightened, fully tensioned, and friction type
⦁ Bare and coated connection surfaces
⦁ Hole type, holing and condition
Part 2: Bolting Materials
⦁ Selecting the appropriate bolting materials - AS/NZS 1252, EN 14399-X, strength, type, corrosion protection
⦁ Manufacturer testing of bolting components
⦁ Product identification
Part 3: Bolting Assembly Performance
⦁ Techniques for shop and jobsite testing to verify suitability for use - Pre-installation verification testing and rotational-capacity testing
⦁ The torque-tension relationship
⦁ Protected storage
Part 4: Bolting Installation
⦁ Determining the snug tight condition, and its effect upon further tensioning
⦁ Pretensioning procedures - part-turn, direct tension indicators
⦁ Alternative bolting products and installation methods - twist-off bolts, combined method, torque method
Part 5: Bolting Inspection and Problem Resolution
⦁ Specifying and implementing inspection practices
⦁ Resolution of disputes
⦁ Why bolts break, and what to do about it
⦁ Developing a bolting personnel qualification program
Q&A answering questions posted from Part 1 to Part 5.
Reference:
Technical Notes TN001 and TN016