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Effective crack control occurs with horizontal reinforcement at a maximum of 48 inches of spacing in the center. In some designs, control joints lead to inadequate structural capacity, and the horizontal reinforcement of a bond beam offers a sufficient alternative. Since pools experience many changes in temperature and humidity, cracks can quickly become a problem. Swimming pools, for instance, frequently use bond beams to prevent cracking. Crack control. Another frequent use for bond beams is crack control.A lateral resisting system determines a building’s resistance to forces that arise from side-to-side mechanisms, like wind or earthquakes, and a gravitational resisting system addresses forces that occur due to gravity. This support applies to both lateral and gravitational resisting systems. Improving resisting systems. Bond beams can add mass to a masonry wall that supports point and distributed loads, or, respectively, weight at one location or spread evenly across a feature.In some instances, such as if the bond beam is a collector element or diaphragm chord, continuity is required at this joint, and bond beams are a viable option.īesides adding general reinforcement to a wall, bond beams have several other uses, including: To offer full movement separation between the walls, the beam should usually end at either side of a control joint. Typically, the beams are found in the top course of each wall and at each floor and roof diaphragm. Bond beams also make a sufficient alternative to lintels, which we’ll go over in the next section. Pools, garages and barns also make frequent use of CMU bond beam blocks. They can help distribute the weight evenly across the wall and protect against strong winds, earthquakes and more. You can often find bond beams at the top of a freestanding wall or as anchorage on a floor or roof. Grout plays a role in creating bond beams, as it is what holds the reinforcement bars in place across the structure. A block with longitudinal bar reinforcement can be considered a bond beam. It binds reinforcement across both the horizontal and vertical axes, making the wall more of a single unit through the connection.Ĭontrary to the name, a bond beam doesn’t have to span the width of a structure. The use of a bond beam helps to link the building together more integrally. They add steel reinforcement to structures that might need more than just traditional CMUs to hold it up sufficiently. The bond beam is made up of specialized blocks that are filled with grout to hold a sturdy steel bar in place. Each type has its place.īond beams are a horizontal feature embedded in a wall to add support to the structure. The differences address where bond beams and lintels are most effective and how they affect the load-bearing characteristics of a structure. Both help to improve the integrity of the building by providing reinforcement, but they have key differences. In the world of concrete masonry units (CMUs), two types of blocks stand out in how they bring strength and support to a structure: Bond beam blocks and lintel blocks. Locate a Dealer for Your CMU Block Needs.They are surprisingly strong and are available in 100 mm and 140mm widths as standard, but we can manufacture them in almost any size you need. We have a range of box lintels to course 1, 2, 3 or even 4 bricks high. They are available to course either 2 bricks high or with standard 215mm blocks. These lintels are Ideal where the LA lintels are not quite strong enough and you still need faced masonry on the outside. These are easy to install lintels that leave faced masonry on the outside, ideal for many small openings.Īs standard they suit 100mm walls, but can be IN lintels are low-profile and economic, ideal for openings in internal walls. They are available in almost any width on request. View the PDF files for details of all the lintels in that range, including options and load tables.Ī light weight alternative to concrete lintels for internal openings, the CH lintels are easy to course though and dry-line. The single wall lintel types in our galvanised lintel range are shown below, each is available in a range of sizes to suit different loads and masonry widths. The Duty Range We have a range of lintels designed to support solid masonry of one course thickness.
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