Isolation Isolation pads are used to protect the structure against the effects of Vibration – how well the isolator works depends on its deflection. The greater the deflection, the less the vibration transmission. There are three classes of vibration isolators which include: Isolation Pads which are made from either Rubber or Neoprene which are fitted […]
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Here we’ll look at typical horizontal bracing connections connecting to beams and columns. They include both welded and bolted gusset plates. For information on bolt hole edge-distances and spacing refer to Bolt-Hole Spacing and Edge-Distances Welded Gusset Plates to a Beam Fig’s 1 and 2 illustrate typical welded Gusset-Plates. Fig. 1 – shows the Gusset
Horizontal Bracing Typical Connections Read Article »
Horizontal bracing is employed to resist horizontal / lateral loads on the structure and distribute them to the outer columns and thereby into the vertical stabilizing system. Horizontal bracing will also maintain the planar integrity of the structure and prevent it from deforming out of shape. The bracing configuration works with the horizontal beams to
Horizontal Bracing – Setting Out Read Article »
Gusset Plate Geometry Gusset-plates are the most common means of connecting bracing, they may act either in tension or compression depending on how the bracing is configured. They should be as compact as possible to minimize the risk of out-of-plane buckling when in compression. When setting out the bracing, it should be borne in mind
Vertical Bracing Gusset Plate Connections Read Article »
Here, we’ll be looking at the setting-out procedure for Concentric vertical bracing using gusset-plates, the general principles will apply to all bracing configurations irrespective of member sizes. Concentric bracing implies that the Work-Points are derived from the center-line intersections of the beam, column, and bracing member. The center-lines represent the neutral axes of the members,
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The Vertical Braced-Frame is the most straightforward and efficient vertical stabilizing system. It’s fairly straightforward to resolve, and equally straightforward to fabricate and erect. Braced frames are flexible in the sense that they can be adapted to suit almost any conditions and a wide variety of load combinations. Bracing is also the most economical stabilizing
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Shear walls may be constructed from steel plate, reinforced concrete, or masonry, and are usually to be found in structures built is seismically active zones. A shear-wall could loosely be described as a solid infill brace, often placed within the confines of the structure to assist the primary stabilizing system located at the periphery. Shear-walls
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A leaned frame is fairly self-descriptive; it is employed mostly in single-storey or low-rise / multi-bay structures where one of the bays is designed as a rigid frame, while the others, as Pin-Jointed frames lean against it. The Rigid Bay, though illustrated over as a moment resisting rigid frame, may be any of the other
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Rigid or Moment Frames seem uncomplicated and straightforward in appearance and resemble simple post and beam construction, but in fact, they are radically different in structural behavior. The best way to describe rigid frames is to compare them with pin-ended braced structures. The horizontal beams in a braced frame are subject to ‘bending’ when a
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Diaphragms are usually incorporated into Multi-Storey commercial structures and typically consist of Profiled Steel Decking with a reinforced concrete floor cast in-situ. The decking not only acts as a permanent shutter, but it also provides sufficient shear-bond with the concrete by means of the shear-studs, so that when the concrete has gained sufficient strength the
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Horizontal braced frames are usually found in industrial type structures, where due to their open nature Composite Floors are not an option. Lateral force distribution is achieved by, what is effectively a Horizontal Triangulated Girder or Truss. The bracing system may be configured in any number of ways, depending on the limitations and/or the requirements
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