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Overview
Unreinforced masonry (URM) has often been used throughout history for the construction of various types of structures whose usages include residential (single family homes), commercial (office space, retail) and assembly (churches, theaters). URM construction such as brick walls or walls constructed of concrete masonry units have been widely used because of the numerous advantages of these building materials including:
- their great compressive strength (resistant to vertical or bearing loads)
- ability to increase thermal mass (masonry has the ability to absorb and store warmth and coolness until needed)
- heat resistance (provide good fire protection)
- resistance to projectiles, such as debris from hurricanes or tornadoes
- reduction in life cycle costs (maintenance costs as compared to wood)
- attractiveness when well crafted (specifically brick walls or stuccoed block walls)
However, there are some drawbacks to using these materials. Extreme weather may cause degradation of masonry wall surfaces due to frost damage. This type of damage is common with certain types of brick, though relatively rare with concrete block.
Of a more significant concern are structural disadvantages. Unreinforced brick masonry or concrete masonry units have a limited resistance to tensile loads (lateral loading such as earth pressures on foundation walls) and a lack of ductility (susceptibility to the oscillations of earthquake forces). These structural limitations have resulted in numerous building collapses and foundation failures throughout the world.
There are prescribed repairs that can be implemented to remedy the inherent structural weaknesses of URM construction. One of the main goals of this presentation is to describe those repairs and provide design examples. In addition, this webinar will provide a basic background of types of masonry materials and their reactions under different types of loadings.
Along with the applicable building codes and various articles and documents from the Masonry Institute of America, the main reference source for this webinar is Simplified Design of Masonry Structures by James Ambrose.
Learning Objectives
In this 3-hour webinar, you'll learn ...
- Historical development of masonry
- Current uses of masonry including examples
- Material and/or construction terminology specific to masonry construction
- Design of URM bearing walls, basement walls, and retaining walls
- Design of reinforced masonry walls subject to lateral loading
- Retrofit of URM walls with reinforcement to accommodate lateral loading
Early Bird Discount
In order to receive the Early Bird Price of $164.90,
you must register and pay your reservation by April 15, 2010. For reservations made after that date, regular pricing of $179.90 will apply.
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System Requirements
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Registration Deadline
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Cancellation Policy
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