Structural steelwork – common use of rolled Tee (T) sections in plate and tank construction In steel fabrication practice, rolled Tee-sections are commonly used:

Introduction / Context:
Rolled Tees are versatile secondary members. In tank and plate construction, they are convenient for connecting and stiffening plates along seams and corners, often paired with flats for bolting or welding.

Given Data / Assumptions:

• Fabrication of rectangular steel tanks and platework.
• Need for edge stiffeners and attachment members.

Concept / Approach:
Tee-sections provide flange and stem surfaces ideal for attaching plates and distributing local loads. While Tees can be part of other members, their frequent use as stiffeners and connectors in plate assemblies is a well-established fabrication practice.

Step-by-Step Solution:
Identify the context (tank/plate construction) → Tees used with flats to connect/stiffen plates.Eliminate options implying primary heavy columns or specialized tension-only roles that are not typical Tee applications.

Verification / Alternative check:
Shop drawings for oil/water tanks often show T-stiffeners along walls and roofs, combined with flats and angles for plate connections.

Why Other Options Are Wrong:

• (a) Columns prefer doubly symmetric sections (e.g., I-sections) for buckling resistance.
• (c) Tees are not limited to tension-only applications.
• (d) Cable hangers typically use round bars/ropes or tailored fittings, not standard Tees.
• (e) Incorrect because a common correct usage exists.

Common Pitfalls:
Assuming any rolled section is equally suited to columns; section class and symmetry matter for stability.

Final Answer:
With flat strips to connect plates in steel rectangular tanks (as stiffeners/attachments)