Confined Masonry Buildings: Design and Construction Deficiencies
I Spy: Masonry Observations and Inspections Masonry ... · Review of modern-day solid and cavity...
Transcript of I Spy: Masonry Observations and Inspections Masonry ... · Review of modern-day solid and cavity...
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I Spy:Masonry Observations and InspectionsPART 1 OF A MASONRY AFTERNOON, FEBRUARY 26, 20192019 STRUCTURAL ENGINEERING SEMINAR SERIESPAM JERGENSON, CCS, CCCA, BECXP, CXA+BELOUIS LONGMIRE, STRUCTURAL MASONRY SPECIAL INSPECTOR
I Spy:Masonry Observations and Inspections
Inhabitat.com
Presentation Outline
Background on masonry code and special inspections Baseline masonry observations of new construction Baseline masonry observations of existing construction Red flags in existing construction observation Special Inspections of masonry
Current Masonry Code
2015 MN
2012 IBC
2011 MSJC
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2015 MN Building Code
http://www.dli.mn.gov/business/codes-and-laws
2012 IBC
https://shop.iccsafe.org/codes/2012-international-codes/2012-international-building-code-1.html
2011 MSJC
Adopted by:2012 IBC and 2015 MN Bldg. Code
“Building Code Requirements and Specification for Masonry Structures” contains two standards:
• TMS 402-11/ACI 530-11/ASCE 5-11 (2011 MSJC Code)
• TMS 602-11/ACI 530.1-11/ASCE 6-11 (2011 MSJC Specification)
The Masonry Society (TMS)http://www.masonrysociety.org/
Masonry Standards Joint Committee (MSJC)
Resource - Masonry Code
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2015 MN Building CodeChapter 14 - Exterior Walls
1403.2 Weather protection. Exterior walls shall … include flashing, … and constructed … to prevent the accumulation of water … by providing a water-resistive barrier behind the exterior veneer, … and a means for draining water … Protection against condensation …
Flashing material verification
Installation Installation
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Installation
Installation
Installation
2015 MN Building Code
Chapter 14 - Exterior Walls
Other masonry code:• 1405.6 Anchored masonry veneer. Anchored masonry
veneer shall comply with the provisions of Sections 1405.6, 1405.7, 1405.8 and 1405.9 and Sections 6.1 and 6.2 of TMS 402/ACI 530/ASCE 5. (2011 MSJC Code)
• 1405.7 Stone veneer. (≤ 10 inches thick)• 1405.8 Slab-type veneer. (≤ 2 inches thick)• 1405.9 Terra Cotta.• 1405.10 Adhered masonry veneer.
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1404.4 Masonry. Exterior walls of masonry construction shall be designed and constructed in accordance with this section and Chapter 21. Masonry units, mortar and metal accessories used in anchored and adhered veneer shall meet the physical requirements of Chapter 21. The backing of anchored and adhered veneer shall be of concrete, masonry, steel framing or wood framing.
2015 MN Building CodeChapter 14 - Exterior Walls
2015 MN Building Code
Chapter 21 – Masonry
Other design methods: Allowable stress design Strength design Prestressed masonry Empirical design Glass unit masonry Direct design
From 2101.2 Design methods. 2101.2.6 Masonry veneer. Masonry
veneer shall comply with the provisions of Chapter 14 or Chapter 6 (Veneer) of TMS 402/ACI 530/ASCE 5.(2011 MSJC Code)
2103 Materials, 2104 Construction, and 2105 Quality Assurance sections refer to:
ASTM Standards TMS 602-11/ACI 530.1-11/ASCE 6-11
(2011 MSJC Specifications)
2015 MN Building Code
Chapter 21 – Masonry 2104.4.1 Tolerances 2011 MSJC Specification 3.3.F
Bed and head joints: 3/8 in., unless otherwise required
Mortar joint -thicknesses• Bed: +1/8 in.• Head: -1/4 in.,
+3/8 in.
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2104.4.1 Tolerances 2011 MSJC Specification 3.3.F
Bed and head joints: 3/8 in., unless otherwise required
Mortar joint -thicknesses• Bed: +1/8 in.• Head: -1/4 in.,
+3/8 in.
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The Three Masonry Rs: Repair, Restoration, and RehabilitationPART 2 OF “A MASONRY AFTERNOON”, FEBRUARY 26, 20192019 STRUCTURAL ENGINEERING SEMINAR SERIESPAMELA JERGENSON, CCS, CCCA, BECXP, CXA+BE; ANDPHILIP WAUGH, ASSOC. AIA, LEED AP
The Three Masonry Rs:Repair, Restoration, and Rehabilitation
Lego ultimate building set
Bricksandbloks.com
The Three Masonry Rs:Repair, Restoration, and Rehabilitation Presentation Outline
Review of modern-day solid and cavity masonry wall construction Identifying existing masonry deterioration and deficiencies Detailing existing masonry repair Specifying masonry repair materials Historic masonry Secretary of the Interiors Standards Evolution of masonry wall assemblies
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Solid composite masonry wall Solid composite masonry wall
Solid composite masonry wall Cavity masonry wall
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Cavity masonry wall - CMU Cavity masonry wall – steel stud
Deteriorated joint sealant
Compressed joint sealant
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Joint sealant replacement
Cracked brick and mortar
Weathered or missing mortar Poor tuck pointing
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Rowlock sill and spalled brick
Tuck pointing detail
Mortar specifications - selection
ASTM C270-14A,Appendix X3 Tuck Pointing Mortar
Mortar specifications - proportion
ASTM C270-14A, Table 2
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Mortar specifications - preblended
ASTM C1714/C1714M - 19
Leaking window
Leaking window
Leaking window
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Through-wall flashing detail Exfoliated
lintel
Poor through-wall termination
Out-of-plane parapet
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Out-of-plane parapet
Out-of-plane parapet repair detail
Deteriorated chimney Chimney shortening and repair
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Deteriorated chimney interior
Efflorescence
Efflorescence, cracked brick, and spalled stone
Efflorescence on a Pool
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