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Wood and Steel Rope: A Rational Combination in Floor Beams

2022; Springer Nature; Linguagem: Inglês

10.1007/978-3-030-85236-8_40

2366-2557

Artem Koshcheev, Светлана Рощина, Михаил Лукин, Nikolai Vatin,

Tree Root and Stability Studies

The article is devoted to the experimental study of the method of reinforcing wooden beams with steel wire ropes. The presented reinforcement technology can be used in roof and floor beams of building structures. The process of pulling out the archy glued auxiliary bars made of the double-lay steel wire rope about 8 mm in diameter has been investigated. The investigations have been carried out on the symmetrical double faced samples with local wood reinforcement 100 × 400 × 50 mm in size, with 140 mm in the reinforcement working length. Numerical calculation has revealed the amplitude of the reinforcement trajectory vibration influence on the wooden beam ruggedness. With the reinforcement trajectory amplitude contraction from 35 to 15 mm, the force corresponding to the destruction of the wire rope-wood connection increases from 5 to 23 kN. The researchers have described the manufacturing technique of the control samples, which consists of wooden blanks planing and calibration stages, marking the milling lines, performing milling with the fillet grooved U-shaped cutters, preparation and gluing of the reinforcing elements. The materials of the tests progress photographic evidence have been presented. The results of the experiment have shown that a decrease in the vibration amplitude of the S-shaped form of the reinforcement to 15 mm leads to an increase in the strength of the entire gluing in by 28% in comparison with the rectilinear form. Conclusions on the step-like increase in the ruggedness of the S-shaped gluing in with the decrease in the reinforcement trajectory amplitude have been made.