Steel Riveted Joints – Select the single correct detailing rule that ensures strength and serviceability: • Use codal limits for rivet pitch and gauge in tension and compression members. • Apply realistic maxima/minima so plates are neither under-connected nor prone to tearing.

Introduction:
Riveted (and by extension bolted) joints in steel structures are governed by pitch, gauge, and edge-distance limits to prevent tearing, shear failure, and poor force transfer. This question checks knowledge of codal limits and the reasoning behind them.

Given Data / Assumptions:

• Flat plates joined by rows of rivets.
• t denotes connected plate thickness.
• Design aims: prevent tearing between holes and ensure adequate shear transfer.

Concept / Approach:

Pitch limits control the net cross-section and crack/arrest behavior; minimum pitch avoids hole weakening due to crowding; edge/adjacent-line spacing prevents edge tearing and buckling of narrow strips.

Step-by-Step Solution:

Verification / Alternative check:

If t = 10 mm, tension pitch ≤ 160 mm and also ≤ 200 mm; hence 160 mm governs, illustrating the codal intent.

Why Other Options Are Wrong:

Option B incorrectly allows 203 mm even when 12 t is smaller, violating compression-member limits. Option E is false because not all statements are simultaneously correct. Options C and D are true but the question requires a single correct choice, so we select one codal-true statement that is unambiguous (Option A).

Common Pitfalls:

Using a fixed pitch (e.g., 200 mm) irrespective of thickness, ignoring edge/line spacing, or confusing hole diameter with rivet shank diameter.

Final Answer:

In tension members, max pitch along stress ≤ 16 t or 200 mm, whichever is less.