A masonry opening is ready for a steel lintel, but the bearing pocket on one jamb is chipped back and cannot provide the bearing shown on the detail. What should the superintendent do before loading the lintel?
Correct Answer
C) Repair or rebuild the bearing area to the approved detail before the lintel carries masonry
A lintel needs the specified sound bearing before masonry load is placed on it; the pocket should be repaired or rebuilt to the approved detail. Other choices: sand packing, relying on veneer ties, or shortening the lintel does not provide the required structural bearing.
Why This Is the Correct Answer
A lintel needs the specified sound bearing before masonry load is placed on it; the pocket should be repaired or rebuilt to the approved detail.
Why the Other Options Are Wrong
Option A: The superintendent should pack the pocket with dry sand and proceed, leaving lintel bearing unverified
Choice A (Pack the pocket with dry sand and proceed) is rejected because it leaves out the controlling Lintel bearing result: Repair or rebuild the bearing area to the approved detail before the lintel carries masonry.
Option B: The superintendent should set the lintel and rely on the veneer ties
In masonry work, Set the lintel and rely on the veneer ties is the wrong selection for Lintel bearing: the choice would not get the project to Repair or rebuild the bearing area to the approved detail before the lintel carries masonry, which is the Lintel bearing result verified by the source.
Option D: The superintendent should shorten the lintel so it fits the damaged pocket
Choice D gives Shorten the lintel so it fits the damaged pocket. Its specific error: it points to Shorten the lintel so it fits the damaged pocket, but.
Memory Technique
Tag the scene with lintel bearing: wrong actor or wrong timing means the fix is not Repair or rebuild the bearing area to the approved detail before the lintel carries masonry.
Reference Hint
Open Modern Masonry - Brick, Block, Stone, 9th Ed., 2020; use the index entry or section for "Masonry lintels and bearing preparation" to confirm that A lintel needs the specified sound bearing before masonry load is placed on it; the pocket should be repaired or rebuilt to the approved detail.
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