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Essentially, a bond beam is a fully grouted horizontal element with one or two reinforcement bars that provides continuity of the masonry wall. Bond beams can provide a location of solid mass within a masonry wall to support distributed and point loads as part of either the gravity or lateral resisting systems.
17 maj 2023 · Bond beam CMU blocks are concrete masonry units that are designed to provide additional strength and reinforcement to concrete masonry walls. They are typically used at the top of concrete masonry walls, but they can also be used at other locations, such as around openings or at the base of walls.
Building code allowable design stresses, lateral support, and minimum thickness requirements for concrete masonry are based primarily on structural testing and research on wall panels laid in running bond construction.
Bond beam blocks are concrete masonry units which are manufactured with reduced webs (Fig. 1) or with knock-out webs (Fig. 2); the knock-out webs are removed prior to the placement of the unit in the bond beam.
Bond beam units are manufactured either with reduced webs or with “knock-out” webs, which are removed prior to unit placement in the wall. Lintel units are similar to bond beam units except the bottom of the unit is solid to confine grout to the lintel.
A bond beam is a horizontal structural element, usually found as an embedded part of a masonry wall assembly. The bond beam serves to impart horizontal strength to a wall where it may not otherwise be braced by floor or roof structure.
Letter C designates a concrete bond beam. All other bond beams are masonry. The first number denotes the nominal height of the bond beam in inches. The second number denotes the number of No. 5 reinforcing bars in the top and the bottom of the beam. One No. 7 may be used in lieu of two No. 5.
