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Optimal Design of a Novel Large-Span Cable-Supported Steel–Concrete Composite Floor System.
- Source :
- Buildings (2075-5309); Jan2024, Vol. 14 Issue 1, p113, 16p
- Publication Year :
- 2024
-
Abstract
- This paper optimizes the design of a novel large-span cable-supported steel–concrete composite floor system in a simply supported single-span, single-strut configuration, aiming for cost-effective solutions and minimal steel consumption. The optimization considers various cross-sectional dimensions, adhering to building standards and engineering practices, and is based on a non-linear programming (NLP) algorithm. Parameters of live loads ranging from 2 to 10 kN/m<superscript>2</superscript> and spans from 20 to 100 m are considered. The optimization results show that cable-supported composite floors with a single strut exhibit robust economic feasibility for spans of less than 80 m and live loads under 8 kN/m<superscript>2</superscript>. Compared to conventional composite floors with welded I-beams, the cable-supported system offers more cost-effective cross-sections and reduces steel consumption. The savings in economically equivalent steel consumption range from 20% to 60%. Discussion on the area ratio of cables to steel beam in the optimal cross-section reveals that the secondary load-bearing system (i.e., bending of the main beam with an effective span length of L/2) may require more steel in cases of ultra-large spans. Therefore, the economical efficiency of cable-supported composite beams with multiple struts and smaller effective span lengths warrants further exploration in future studies. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20755309
- Volume :
- 14
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Buildings (2075-5309)
- Publication Type :
- Academic Journal
- Accession number :
- 175048342
- Full Text :
- https://doi.org/10.3390/buildings14010113