Erdal, Ferhat Akdeniz Üniversitesi - Mühendislik Fakültesi - İnşaat Mühendisliği Bölümü, Turkey

Optimum Design of Web‐Expanded Steel Beams with Sinusoidal Openings

27860

Web‐expanded beams became increasingly popular as an efficient structural form in steel construction since their introduction. Their sophisticated design and profiling process provides greater flexibility in beam proportioning for strength, depth, size and location of sinusoidal holes. The purpose of manufacturing these beams is to increase overall beam depth, the moment of inertia and section modulus, which results in greater strength and rigidity. Web‐expanded beams are used as primary or secondary floor beams in order to achieve long spans and service integration. They are also used as roof beams beyond the range of portal‐frame construction, and are the perfect solution for curved roof applications, combining weight savings with a low‐cost manufacturing process. The purpose of the current research is to study optimum design ofweb‐expanded steel beams with sinusoidal openings using stochastic search methods. The minimum weight is taken as the design objective while the design constraints are implemented from the Steel Construction Institute. Design constraints include the displacement limitations, overall beam flexural capacity, beam shear capacity, overall beam buckling strength, web post flexure and buckling, vierendeel bending of upper and lower tees and local buckling of compression flange. The design methods adopted in this publication are consistent with BS5950.

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Web‐Expanded Beams , Stochastic Search Methods , Harmony Search , Particle Search , Minimum Weight , Optimum Design of Structures

Afyon Kocatepe University Journal Of Science an‎d Engineering

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