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This should not be confused with sound absorption which is that property of a material which permits sound waves to be absorbed, thus reducing the noise level within a given space and eliminating echoes or reverberations. The sound insulation or sound transmission loss of a wall is that property which enables it to resist the passage of noise or sound from one side to the other. The procedure for addressing thermal mass in residential and commercial construction when determining building envelope compliance with widely used energy standards and codes is also described.
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This Technical Notes describes how to quantify thermal mass and calculate the heat capacity of several brick masonry walls. Brick masonry, as a high mass building material, has the inherent energy saving feature of thermal storage capacity (thermal mass). These documents typically contain requirements for the building envelope, including walls, windows, doors, roofs and floors.
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Building energy performance requirements may be embodied in a model building code or in a separate energy standard.
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Other Technical Notes in this series provide further information on energy code requirements and thermal performance of specific brick masonry wall assemblies for residential and commercial construction.Īll buildings designed today must comply with energy code requirements.
The relative accuracy of various methods for estimating thermal performance are presented, including computer analyses that account for both thermal mass and thermal bridging effects. The impacts of thermal mass and thermal bridges, which are often excluded from R-value and U-factor calculations, are also explained. Material properties for common building materials are given including thermal resistance (R-values) and transmittance (U-factors) based on steady-state conditions. This Technical Note provides a foundation for understanding building thermal energy performance. Thermal performance depends upon many factors, including the amount of insulation, the extent of glass/glazing used, mass and thickness of the walls, and the thermal resistance of wall materials. Thermal performance of the building envelope is a significant factor in the energy efficiency of a building. Section properties are used to calculate stresses and to determine the allowable stresses givenĤ Introduction to Energy Performance of Brick Masonry Properties of brick masonry units, steel reinforcement and brick masonry assemblages are given to simplify theĭesign process. This Technical Notes is a design aid for the Building Code Requirements for Masonry Structures (ACIĥ30/ASCE 5/TMS 402-92) and Specifications for Masonry Structures (ACI 530.1/ASCE 6/TMS 602-92). Clay and shale units, mortar, grout, steel reinforcement and assemblage material properties are presented to simplify the design process. This Technical Notes is an aid for the design of brick and structural clay tile masonry structural members. However, design of masonry structural members begins with a thorough understanding of material properties. Standards for the structural design of masonry which are periodically updated such as the Building Code Requirements for Masonry Structures (ACI 530/ASCE 5/TMS 402) and the Specifications for Masonry Structures (ACI 530.1/ASCE 6/TMS 602) advance the efficiency of masonry elements with rational design criteria.
Items addressed for the masonry specification are: requirements checklist and submittals, masonry quality assurance and inspection requirements, reinforcement and metal accessories, erection tolerances, construction procedures and grouting requirements.īrick masonry has a long history of reliable structural performance. Subjects discussed pertaining to the design standard are: allowable stress and strength design of unreinforced and reinforced masonry, prestressed masonry, empirical design, glass block masonry, masonry veneer, quality assurance, and seismic provisions. New provisions and revisions of existing standards for masonry design are emphasized.
This Technical Notes provides a review of the national masonry design standard, ACI 530/ASCE 5/TMS 402, and its accompanying masonry specification, ACI 530.1/ASCE 6/TMS 602. Glossary of Terms Relating to Brick Masonryģ Overview of Building Code Requirements for Masonry Structures
It provides information on weather prediction necessary for construction planning and re tnindex commends practices to achieve optimum performance of masonry constructed during periods of extreme temperatures.Ģ Glossary of Terms Relating to Brick Masonry This Technical Note defines cold and hot weather conditions related to brick masonry construction and describes the unfavorable effects of these conditions on masonry materials and their performance.