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A hollow structural section (HSS) is a type of metal profile with a hollow cross section. The term is used predominantly in the United States, or other countries which follow US construction or engineering terminology. HSS members can be circular, square, or rectangular sections, although other shapes such as elliptical are also available.
As hollow structural sections, (developed by Stewarts and Lloyds and known in the UK as Rectangular Hollow Section (RHS)) had only become widely available in the early 1970s, high-tech architecture saw much experimentation with this material.
Rectangular hollow section, a type of metal profile; Retired husband syndrome; Revue d'histoire de la Shoah, an academic journal about the Holocaust (Shoah) published in France; Right-hand side of an equation; Royal Horticultural Society; Rural Housing Service, in the USDA Rural Development Agency
Further innovations: space frame roof structures derived from WWII aircraft hangar roofs, Rectangular Hollow Section (RHS) (to include Square Hollow Section) steel, known in the US as Hollow Structural Section (HSS) developed in the UK by Stewarts & Lloyds Ltd in the late 1950s and early 1960s, and advances in 'Patent Glazing' during the same ...
Non-circular cross-sections always have warping deformations that require numerical methods to allow for the exact calculation of the torsion constant. [ 2 ] The torsional stiffness of beams with non-circular cross sections is significantly increased if the warping of the end sections is restrained by, for example, stiff end blocks.
The parallel axis theorem can be used to determine the second moment of area of a rigid body about any axis, given the body's second moment of area about a parallel axis through the body's centroid, the area of the cross section, and the perpendicular distance (d) between the axes. ′ = +
In solid mechanics and structural engineering, section modulus is a geometric property of a given cross-section used in the design of beams or flexural members. Other geometric properties used in design include: area for tension and shear, radius of gyration for compression, and second moment of area and polar second moment of area for stiffness .
EN10219-1 specifies the technical delivery conditions for cold formed welded structural hollow sections of circular, square or rectangular forms and applies to structural hollow sections formed cold without subsequent heat treatment. Requirements for S275JOH pipe tolerances, dimensions and sectional s275 pipe properties are contained in EN 10219-2.