Post-Tensioned Masonry Lincoln NE
Specialty Contractor, Remodeler
Better Business Bureau, Certified Contractors Network (CCN), James Hardie Preferred Remodeler
Blair, NE , NE
Source: MASONRY CONSTRUCTION MAGAZINE
Publication date: February 1, 2007
By Jennifer R. Bean Popehn
Masonry is the oldest man-made building material in the world, invented nearly 10,000 years ago. However, its use in modern load-bearing jobs remains behind that of steel and concrete construction despite masonry's advantages, including simplicity, durability, strength, and ability to incorporate architectural elements into its design.
Recent advances in masonry design have developed a post-tensioning technique for this versatile building material. Post-tensioned masonry offers a new structural application characterized by a relatively simple construction technique and competitive cost that can move masonry to the forefront of engineering practice.
Experimental studies were conducted at the University of Minnesota to investigate the strength and stability of this new structural masonry system. This article presents the results of these studies, along with some general information about post tensioning.Early days
The structural success of masonry depends on its ability to overcome its intrinsic low tensile strength, which is controlled by the adhesion between the mortar and masonry unit. A variety of methods are available to conquer this weakness.
An unreinforced masonry system can resist overturning loads with the weight of the masonry itself, but this approach may not be the most economical method for designing multiple story structures.
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