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Cross bracing between joists or rafters strengthens the members by preventing sideways deflection. This bracing is known by many names such as herringbone strutting, blocking, bridging, and dwanging. This bracing is known by many names such as herringbone strutting, blocking, bridging, and dwanging.
The CJ-Series Joists are capable of supporting larger floor or roof loadings due to the attachment of the concrete slab to the top chord of the composite joist. Shear connection between the concrete slab and steel joist is typically made by the welding of shear studs through the steel deck to the underlying CJ-Series Composite Steel Joist. [2]
Solid “bridging” to stabilize floor joists. Blocking placed as attachment points for cabinets, while doubling as bracing against compression of the studs. Blocking (dwang, nog, noggin, and nogging) is the use of short pieces of dimensional lumber in wood framed construction to brace longer members or to provide grounds for fixings.
An adaptive use project in the UK, changing stables into offices, required cutting the beam supporting a floor down its entire length, and then inserting a similarly sized steel plate. The resulting flitched beam was then secured with resin and bolts, preserving appearance while providing strength.
A double floor is a floor framed with joists supported by larger timbers.. In traditional timber framing there may be a single set of joists which carry both a floor and ceiling called a single floor (single joist floor, single framed floor) or two sets of joists, one carrying the floor and another carrying the ceiling called a double floor (double framed floor).
I-beams are commonly made of structural steel but may also be formed from aluminium or other materials. A common type of I-beam is the rolled steel joist (RSJ), sometimes incorrectly rendered as reinforced steel joist. British and European standards also specify Universal Beams (UBs) and Universal Columns (UCs).
Stanley Macomber (November 26, 1887 – May 15, 1967) was an American inventor. He designed and patented the open web joist floor system, and founded the Massillon Steel Joist Company of Massillon, Ohio, and the Macomber Steel Company of Canton, Ohio.
Steve sees the progress on the new addition, including a roof joist system of 1 x 12 LVLs, necessitated by the room's high ceiling height. Inside, Tom and master carpenter Norm Abram show him how they are stiffening up a bouncy third floor by sistering 1/8" steel sheets to the floor joists from below.
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