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The design is created by crossing the strips to form a grid or weave. [1] Latticework may be functional – for example, to allow airflow to or through an area; structural, as a truss in a lattice girder; [2] used to add privacy, as through a lattice screen; purely decorative; or some combination of these.
A lattice girder, like any girder, primarily resists bending. The component sections may typically include metal beams, channel and angle sections, with the lacing elements either metal plate strips, or angle sections. The lacing elements are typically attached using either hot rivets or threaded locator bolts.
The design was patented in 1820 by architect Ithiel Town. Originally a means of erecting a substantial bridge from mere planks employing lower–skilled labor, rather than heavy timbers and more expensive carpenters and equipment, the lattice truss has also been constructed using many relatively light iron or steel members.
The original superstructure consisted of the two wrought-iron arched girders with lattice webbing and a timber floor system. The arch girders are made up of a pair of Z-shaped bars riveted to a central plate diaphragm. Diagonal lattice members fill the web between the upper and lower portions of the plate.
Girder and Panel building sets; L. Lattice girder; M. Meccano; P. Plate girder bridge This page was last edited on 9 November 2021, at 16:20 (UTC). Text is available ...
A girder (/ ˈ ɡ ɜːr d ər /) is a beam used in construction. [1] It is the main horizontal support of a structure which supports smaller beams. Girders often have an I-beam cross section composed of two load-bearing flanges separated by a stabilizing web , but may also have a box shape, Z shape, or other forms.
The use of laced struts within a lattice girder can be seen in the two photographs of the c1860s lattice girder bridge at Llandeilo. The first table lists these early examples. (Note that some bridges, for example the New Clyde Viaduct (or Second Caledonian Bridge) in Glasgow, appear to be of lattice construction whereas in fact the latticing ...
Truss sections stabilize this building under construction in Shanghai and will house mechanical floors. In addition to carrying the static forces, the members serve additional functions of stabilizing each other, preventing buckling. In the adjacent picture, the top chord is prevented from buckling by the presence of bracing and by the ...