Joining steel members — common modern method Which of the following is a widely used, standard method for connecting structural steel members in contemporary buildings and bridges?

Introduction / Context:
Connections determine how loads transfer through a steel frame and strongly influence fabrication and erection procedures. Historically, rivets dominated; today, welding and high-strength bolting are the primary methods. Understanding the terminology ensures drawings and specifications are unambiguous.

Given Data / Assumptions:

• Modern construction practices are considered.
• We compare connection methods, not fabrication steps.
• The answer should reflect a standard, widely used joining method.

Concept / Approach:
Welding fuses components to create a continuous connection and is prevalent in shop fabrication (for example, beam-to-plate, built-up members, stiffeners). On site, welding is also used but often complemented by bolted connections for speed and adjustability. “Assembly” and “fabricating” describe processes, not specific connection types. “Riveting” is now largely obsolete in new construction, though legacy bridges may still use riveted connections.

Step-by-Step Solution:

Verification / Alternative check:
Review current steel standards and typical details: shop drawings show extensive weld symbols for connections and built-up assemblies, confirming welding as a standard method today.

Why Other Options Are Wrong:

• Assembly: generic process, not a connection method.
• Fabricating: refers to shop work, not specifically the joint type.
• Riveting: historically important, but rarely specified in new work.

Common Pitfalls:

• Assuming the only method is welding; high-strength bolting is also common, but it is not offered as an option here.
• Confusing weld symbols, which must be clearly shown on drawings to avoid site ambiguity.

Final Answer:
Welding