9.20.5. Masonry Support

9.20.5. Masonry Support
9.20.5.1. Masonry Support
  1. All masonry shall be supported on masonry, concrete or steel, except that masonry veneer walls may be supported on foundations of wood frame constructed in conformance with Sentence 9.15.2.4.(1). (See Note A-9.20.5.1.(1).)
  2. Every masonry wall shall be at least as thick as the wall it supports, except as otherwise permitted in Article 9.20.12.2.
9.20.5.2. Lintels or Arches
  1. Masonry over openings shall be supported by steel, masonry or reinforced concrete lintels, or masonry arches.
  2. Steel angle lintels supporting masonry veneer above openings shall
    1. conform to Table 9.20.5.2., and
    2. have a bearing length not less than 90 mm.

      Table 9.20.5.2.
      Maximum Allowable Spans for Steel Lintels Supporting Masonry Veneer
      Forming Part of Sentence 9.20.5.2.(2)

  3. Steel angle lintels supporting masonry other than veneer, masonry and reinforced concrete lintels, and masonry arches shall be designed in accordance with Part 4 to support the imposed load.
  4. Steel angle lintels supporting masonry shall be prime painted or otherwise protected from corrosion.

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