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// CODE SNIPPET

A108.2 Masonry Shear Strength

2015 IEBC portion of the 2018 CT State Building Code > A1 Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall Buildings > A108 Design Strengths > A108.2 Masonry Shear Strength
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The unreinforced masonry shear strength, vm, shall be determined for each masonry class from one of the following equations:
  1. The unreinforced masonry shear strength, vm, shall be determined by Equation A1-4 when the mortar shear strength has been determined by Section A106.3.3.1.  



    The mortar shear strength values, vt, shall be determined in accordance with Section A106.3.3.
  2. The unreinforced masonry shear, vm, shall be determined by Equation A1-5 when tensile-splitting strength has been determined in accordance with Section A 106.3.3.2, Item 1 or 2.

  3. When f'm has been estimated by categorization of the units and mortar in accordance with Section 2105.1 of the International Building Code, the unreinforced masonry shear strength, vm, shall not exceed 200 pounds per square inch (1380 kPa) or the lesser of the following:



    For SI: 1 psi = 6.895 kPa

    where:

    v = 62.5 psi (430 kPa) for running bond masonry not grouted solid.
    v = 100 psi (690 kPa) for running bond masonry grouted solid.
    v = 25 psi (170 kPa) for stack bond grouted solid.

Related Code Sections


A108.2 Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall Buildings, Masonry Shear Strength
The unreinforced masonry shear strength, v m , shall be determined for each masonry class from one of the following equations: The ...
2015 IEBC portion of the 2018 CT State Building Code > A1 Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall Buildings > A108 Design Strengths > A108.2 Masonry Shear Strength
A106.3.3.5 Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall Buildings, Minimum Quality of Mortar
of the mortar shear test values, ν to . 4. Unreinforced masonry with mortar shear strength, ν t ,less than 30 pounds per square inch (207 kPa ...
2015 IEBC portion of the 2018 CT State Building Code > A1 Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall Buildings > A106 Materials Requirements > A106.3 Existing Unreinforced Masonry > A106.3.3 Testing of Masonry > A106.3.3.5 Minimum Quality of Mortar
A107.2 Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall Buildings, Masonry Shear Tests
In-place masonry shear tests shall comply with Section A106.3.3.1. Testing of masonry for determination of tensile-splitting strength shall comply ...
2015 IEBC portion of the 2018 CT State Building Code > A1 Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall Buildings > A107 Quality Control > A107.2 Masonry Shear Tests
Section 2102 Masonry, Definitions and Notations
shear wall. Special prestressed masonry shear wall. Special reinforced masonry shear wall. SPECIFIED. SPECIFIED COMPRESSIVE STRENGTH ...
2012 IBC portion of the 2016 CT State Building Code > 21 Masonry > 2102 Definitions and Notations
Section A104 Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall Buildings, Symbols and Notations
sheathed with any of the materials given in Table A1-D or A1-E, pounds per foot (N/m). v m = Shear strength of unreinforced masonry, pounds per ...
2015 IEBC portion of the 2018 CT State Building Code > A1 Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall Buildings > A104 Symbols and Notations
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