![]() Engineers will learn about architectural considerations involved in specifying lintels, while architects will learn about the structural complications involved. Structural and civil engineers, architects, facility managers, and building officials seeking to broaden their knowledge of designing steel lintels in masonry walls will benefit from this seminar. Examine safe methods for making openings in existing masonry walls during renovations and placing steel lintels into various openings Discuss practical details for framing at arched openings in masonry-veneer walls Work through a step-by-step design example for a lintel over a large overhead door placed in the CMU wall with brick veneer Discover proven methods for analyzing steel lintels placed in small, medium and large wall openings Learn how to design steel lintels in masonry walls safely and accurately Single Leaf Steel Lintels Internal Solid Wall Steel Lintels External Solid Wall Steel Lintels Special Steel Lintels Concrete Lintels. Lintels function as beams to support the wall weight and other loads over an opening, and to transfer these loads to the adjacent masonry. The presenter will discuss how curved steel lintels can be used to repair damaged masonry arches. What about openings made in existing masonry walls during renovations? The presentation explains how these openings can be made while avoiding collapse and how to properly place steel lintels into these openings. Since many wall openings are made in the shape of the arch, the issues of designing curved steel lintels are discussed as well. The designs and details of loose angle lintels over small openings and suspended lintel systems over strip windows are also examined. ![]() A design example for this condition is included. The bulk of the presentation is devoted to the design of steel lintels for large openings in masonryveneer walls, such as those that might be needed at overhead doors. The seminar discusses the design techniques appropriate for a variety of wall opening sizes. Some engineers neglect torsion forces acting on steel-angle lintels and take a simplified approach that might work for short spans but becomes increasingly questionable with large openings. Unfortunately, these mundane structural elements often do not receive the design attention they deserve, with the resulting cracking and sagging of masonry, rusting of steel, leakage, and other wall distress. This seminar focuses on the design and construction of steel lintels, the most popular solution for veneer walls. The available choices for lintel materials include steel, precast concrete, and masonry. This webinar was co-sponsored by ASCE's Structural Engineering Institute and ASCE Continuing Education. ![]() Instructor Information: Alexander Newman, P.E., F.ASCE If you have enough load bearing wall height above an opening, the "arch effect" of masonry actually reduces the load on a lintel above an opening, but that requires an engineer to save the money invested.View Important System Requirements for running this course. If your window opening is NEW and is 48" wide, you may have to do some investigation yourself (drill, probe, etc.) IF you know what to look for. If you are looking at other construction, the flat bar running horizontally may just be a plate that si there to support the masonry above DURING construction and is supported by props that are removed later to allow the window installation. If all gets down to the dimensions (thickness, wall height, wall length, wall section height above openings) and a simple answer will not be possible without it. Bond beams are usually not detailed on a plan because they are usuallt built but local conventions.Ī 6" thick block wall has tremendous strength, as exhibited by the many 7 to 20 story 6" load bearing block apartment buildings (partially reinforced and not technically reinforced on the upper 2 or 3 floors). If your building department is any good you will have a bond beam as a top course for a wall and often have a bond beam as an intermediate support/continuity an a gable end of a home.Ī better description of the wall (height, length, etc.) is needed and is the reason you will never get a firm answer to your question without it. Its purpose is not really structural, but provide a solid bearing surface for any construction above (more floors or roof trusses). A bond beam usually the top course (or two ). ![]()
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