A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Parametric study of the behavior of steel cellular beams with various web opening diameters
Steel cellular beams are beams with circular web openings along their length which are fabricated from hot rolled steel sections. One of the main advantages of building with cellular beams is the possibility of passing electric wires and ventilation systems through the depth of the beam, which reduces the height of floors. They are mainly used as roof and floor beams to achieve long spans in excess of 12m. The objective of this master thesis is to investigate the effect of different parameters on the strength of the web-post. Many previous experimental and numerical analyses have been conducted on cellular beams; however, the focus of the thesis is placed on three parameters, namely the diameter of the web opening, the thickness of the flanges and the thickness of the web. Experimental results from testing series carried out in a previous research paper have been used to validate the proposed three-dimensional finite element model that have been created using ANSYS Workbench. In order to determine the effect of these parametric changes, 12 cases have been studied and an optimal case design is proposed in this thesis. The base model is a universal beam section UB457x152x52 with top and bottom flange thickness of 10.9mm, web thickness of 7.6mm and web-opening diameter of 315mm. After analyzing a total number of 12 cases, it is concluded that case 3a is the optimal case with top and bottom flange thickness of 10.9mm, web thickness of 11.4mm and web opening diameter of 315mm. The web-post shear capacity increased by 45.5% with this parametric combination. ; Stål cellulære bjelker er bjelker med sirkulære stegåpninger langs deres lengde som er produsert av varmvalsede stålseksjoner. En av hovedfordelene med å bygge med cellulære bjelker er muligheten for å føre elektriske ledninger og ventilasjonssystemer gjennom dybden på bjelken, noe som reduserer etasjehøyden. De brukes hovedsakelig som tak- og gulvbjelker for å oppnå lange spenn over 12m. Målet med denne masteroppgaven er å undersøke effekten av forskjellige parametere på styrken til steginnlegget. Mange tidligere eksperimentelle og numeriske analyser er blitt utført på cellulære bjelker, men fokuset for denne oppgaven er plassert på tre parametere, nemlig diameteren til stegåpningen, tykkelsen på flensene og tykkelsen på steget. ; M-BA
Parametric study of the behavior of steel cellular beams with various web opening diameters
Steel cellular beams are beams with circular web openings along their length which are fabricated from hot rolled steel sections. One of the main advantages of building with cellular beams is the possibility of passing electric wires and ventilation systems through the depth of the beam, which reduces the height of floors. They are mainly used as roof and floor beams to achieve long spans in excess of 12m. The objective of this master thesis is to investigate the effect of different parameters on the strength of the web-post. Many previous experimental and numerical analyses have been conducted on cellular beams; however, the focus of the thesis is placed on three parameters, namely the diameter of the web opening, the thickness of the flanges and the thickness of the web. Experimental results from testing series carried out in a previous research paper have been used to validate the proposed three-dimensional finite element model that have been created using ANSYS Workbench. In order to determine the effect of these parametric changes, 12 cases have been studied and an optimal case design is proposed in this thesis. The base model is a universal beam section UB457x152x52 with top and bottom flange thickness of 10.9mm, web thickness of 7.6mm and web-opening diameter of 315mm. After analyzing a total number of 12 cases, it is concluded that case 3a is the optimal case with top and bottom flange thickness of 10.9mm, web thickness of 11.4mm and web opening diameter of 315mm. The web-post shear capacity increased by 45.5% with this parametric combination. ; Stål cellulære bjelker er bjelker med sirkulære stegåpninger langs deres lengde som er produsert av varmvalsede stålseksjoner. En av hovedfordelene med å bygge med cellulære bjelker er muligheten for å føre elektriske ledninger og ventilasjonssystemer gjennom dybden på bjelken, noe som reduserer etasjehøyden. De brukes hovedsakelig som tak- og gulvbjelker for å oppnå lange spenn over 12m. Målet med denne masteroppgaven er å undersøke effekten av forskjellige parametere på styrken til steginnlegget. Mange tidligere eksperimentelle og numeriske analyser er blitt utført på cellulære bjelker, men fokuset for denne oppgaven er plassert på tre parametere, nemlig diameteren til stegåpningen, tykkelsen på flensene og tykkelsen på steget. ; M-BA
Parametric study of the behavior of steel cellular beams with various web opening diameters
2020-01-01
90
Theses
Electronic Resource
English
DDC:
690
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