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Contents of the issue
E.O. Paton Electric Welding Institute of the NAS of Ukraine.
11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: email@example.com
Joining building rebars is a labour-consuming critical process. Arc welding processes are of little use in the cases of application
of heat-strengthened building rebars, or such which have a protective layer. It is shown that use of steel couplers, compressed
by explosion, allows obtaining strong and reliable joints of building rebars for various applications. Coupler parameters are
calculated under the condition of equal strength with the rebar steel. Rupture testing revealed a higher strength of the coupler
joint, compared to the strength of rebar beyond which rupture took place. Cyclic fatigue life testing showed that fatigue
resistance of coupler joints is higher than what is required by normative documentation. There is experience of application of
explosives in large construction sites and in operating industrial facilities. 7 Ref., 2 Tabl., 5 Fig.
Keywords: building reinforcement, reinforcement joint, coupling, fatigue resistance, strength, explosion compression
1. DSTU B V.2.6-168:2011. Welded rebars and embedded
products, welded joints of rebars and embedded products of
concrete structures. General technical conditions [in Ukrainian].
2. DSTU B V.2.6-169:2011. Welded joints of rebars and embedded
products of concrete structures. Types, structures
and dimensions [in Ukrainian].
3. DSTU 3760L:2019. Reinforcing bars for concrete structures.
General technical conditions [in Ukrainian].
4. Petushkov, V.G. (2005) Application of explosion in welding
technology. Kyiv, Naukova Dumka [in Russian].
5. DBN V.2.3-14:2006. Bridges and pipes. Design rules [in
6. (2013) Safety rules when handling explosive materials for industrial
purposes. Kyiv, Okhorona Pratsi [in Ukrainian].
7. Lobanov, L.M., Bryzgalin, A.G., Dobrushin, L.D. et. al.
(2009) Widening of technological capabilities of explosion
treatment for reducing residual stresses in welded joints on
up to 5000 m3 decomposers. The Paton Welding J., 11, 46-48.