Flexure behavior of hollow steel beams strengthening with ferrocement
نویسندگان
چکیده
Abstract Experimental and numerical studies are carried out to investigate the flexural behavior of precast lightweight composite beams composed a hollow steel beam strengthened with ferrocement layer. This comprises slender cold-formed section dimension (140 × 180 mm) different thicknesses surrounded by is named (FCH). Nine span 1500 mm were tested under four-point bending system evaluate their strength. Four parameters have been examined, which spacing shear connectors, thickness, effect surface friction. The test results showed that presence 30 layer increased capacity 18% compared control specimen. connectors increases 30%. Increasing cross-section increase 16–33% finally, increasing friction has very small on capacity, can be neglected. finite element models developed validated results; show close agreement between experimental results. Extensive investigated, mortar compressive strength (f' c ) position connectors. indicated ranging 11% 18%. connector in web lower flange an insignificant effect.
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ژورنال
عنوان ژورنال: Journal of Engineering and Applied Science
سال: 2022
ISSN: ['2536-9512', '1110-1903']
DOI: https://doi.org/10.1186/s44147-022-00123-2