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  2. Portal frame - Wikipedia

    en.wikipedia.org/wiki/Portal_frame

    A portal frame steel building under construction. Portal frame is a construction technique where vertical supports are connected to horizontal beams or trusses via fixed joints with designed-in moment-resisting capacity. [1] The result is wide spans and open floors. Portal frame structures can be constructed using a variety of materials and ...

  3. Space frame - Wikipedia

    en.wikipedia.org/wiki/Space_frame

    The roof of this industrial building is supported by a space frame structure. If a force is applied to the blue node and the red bar were not present, the resultant effect on the structure would depend entirely on the blue node's bending rigidity, i.e. to its resistance (or lack thereof) to bending; however, with the red bar in place, then assuming negligible bending rigidity of the blue node ...

  4. Framing (construction) - Wikipedia

    en.wikipedia.org/wiki/Framing_(construction)

    Framing (construction) Framing side by side units. The erection of a wooden frame in Sabah, Malaysia. Framing, in construction, is the fitting together of pieces to give a structure support and shape. [ 1] Framing materials are usually wood, engineered wood, or structural steel. The alternative to framed construction is generally called mass ...

  5. Cast-iron architecture - Wikipedia

    en.wikipedia.org/wiki/Cast-iron_architecture

    The Boat Shed (Number 78) at Sheerness Naval Dockyards, built 1856–60, is constructed entirely of a cast and wrought iron members, braced as portal frames, with extensive window and timber infill panels forming the external walls. Though not entirely of cast iron, it is the earliest large metal framed building still standing, and a pioneer in ...

  6. Facebook Portal Go review: Blurring the line between tablet ...

    www.engadget.com/facebook-portal-go-review...

    To make matters worse, the Nest Hub Max and the Echo Show 8 have similar smart camera technology to the Portal Go, so that’s not a unique advantage for Facebook. And the $199 Go is even more ...

  7. Steel frame - Wikipedia

    en.wikipedia.org/wiki/Steel_frame

    Steel frame. Rectangular steel frame, or "perimeter frame" of the Willis building (at right) contrasted against the diagrid frame at 30 St Mary Axe (at center), in London. Steel frame is a building technique with a " skeleton frame" of vertical steel columns and horizontal I-beams, constructed in a rectangular grid to support the floors, roof ...

  8. Ladder paradox - Wikipedia

    en.wikipedia.org/wiki/Ladder_paradox

    Ladder paradox. The ladder paradox (or barn-pole paradox) is a thought experiment in special relativity. It involves a ladder, parallel to the ground, travelling horizontally at relativistic speed (near the speed of light) and therefore undergoing a Lorentz length contraction. The ladder is imagined passing through the open front and rear doors ...

  9. Bent (structural) - Wikipedia

    en.wikipedia.org/wiki/Bent_(structural)

    Bent (structural) A bent in American English is a transverse rigid frame (or similar structures such as three-hinged arches ). Historically, bents were a common way of making a timber frame; they are still often used for such, and are also seen in small steel-frame buildings, where the term portal frame is more commonly used.

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