Difficulty: Easy
Correct Answer: Girts
Explanation:
Introduction / Context:
Industrial buildings often use steel frames with light-gauge wall cladding. Horizontal secondary members carry the cladding and transfer wind loads to the main frames. Correct terminology is important for detailing and procurement.
Given Data / Assumptions:
Concept / Approach:
These horizontal wall members are called girts. They are analogous to purlins on roofs but serve at the walls. Girts provide attachment lines for cladding and act as horizontal struts distributing wind pressure/suction to the main frames.
Step-by-Step Solution:
Verification / Alternative check:
Drawings/specs for pre-engineered buildings label these as girts; roof members are purlins; beams over openings are lintels.
Why Other Options Are Wrong:
Stringers commonly refer to stair members; trimmers are trimming beams around openings; lintels support masonry over wall openings; fascia beams relate to roof edge aesthetics/support.
Common Pitfalls:
Confusing purlins (roof) with girts (wall); mislabeling lintels as general wall beams.
Final Answer:
Girts
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