Installation of portals in the sections of the column demolition during the re-equipment of Tagmet JSC workshops

Introduction. The article presents the materials on the activities, carried out in the pipe rolling shops of the Tagmet JSC during the modernization period, starting from 2007. The Research Institute of Building Constructions named after V.A. Koucherenko, conducted prolonged surveys of plant workshop structures in order to issue conclusions on their industrial safety and recommendations for the repair and strengthening of damaged elements in building structures for their further safe operation, including workshops, where the technological process has been changed due to the installation of new equipment.

Aim. To demonstrate one of the ways to reconstruct industrial buildings using the example of workshops, located in the territory of the Tagmet JSC, based on a survey of combined structures, calculations and analyzes of their bearing capacity margins.

Materials. The article provides the drawings of original metal structures and photographs of steel structures, already built to reinforce them and change the existing parameters of the building frame to suitable ones for new operating conditions.

Results. Recommendations for structural strengthening, applicable for similar activities, are given. Due to the scientific and technical support for the design and construction of three modernized Tagmet workshops, the plant continuously increased its productivity in subsequent years.

Conclusions. No defects and damage, which exceed the values, established by the current regulatory documents, and affect the operational suitability of buildings, were revealed during the inspection and operational safety examination of Tagmet plant structures. The results of the calculations, performed to the portal structures at the column demolition sections of the plant workshop building frames, proved the assurance of their strength and stability. The design solutions were successfully implemented during the reconstruction of workshops at the Tagmet JSC.

1. RD 11-589-03. Regulations on the examination of industrial safety of hazardous metallurgical and coke-chemical production facilities”. Moscow: STC “Industrial Safety”; 2004. (In Russian).

2. <i>Vedyakov I.I., Farfel M.I., Gukova M.I., Kondrashov D.V., Yarovoy S.N.</i> Inspection of structures of buildings and structures of the Tagmet plant. Structural Mechanics and Analysis of Constructions. 2013;(1):58–64. (In Russian).

3. <i>Vedyakov I.I., Uritsky M.R., Gukova M.I., Farfel M.I., Donchenko O.N.</i> Industrial safety expertise in ensuring long-term operation of buildings and structures. Fuel and energy complex. Bezopasnost’ ob”ektov toplivno-energeticheskogo kompleksa = Safety of facilities of the fuel and energy complex. 2013;(2):126–130. (In Russian).

4. State Standard 27772-88. Rolled products for structural steel constructions. General specifications. Moscow: Standartinform Publ.; 2006. (In Russian).

5. SNiP II-23-81*. Steel structures. Design standards. Moscow: Central Institute standard design; 1990. (In Russian).

6. SNiP 52-01-2003. Concrete and reinforced concrete structures. Principal rules. Moscow; 2004. (In Russian).

7. SNiP 2.02.01-83*. Soil bases of buildings and structures. Moscow: FSUE CCI; 2004. (In Russian).

8. SNiP 3.02.01-87. Earthworks, foundations and foundations. Moscow: FSUE CCI; 2007.

9. SNiP 2.01.07-85*. Loads&actions. Moscow: FSUE CCI; 2005. (In Russian).

10. Manual on the design of steel structures (to SNiP II-23-81*). Moscow: Central Institute of Standard Design; 1989. (In Russian).

11. SP 53-102-2004. General rules for steel structure design. Moscow; 2005. (In Russian).

12. SNiP 3.03.01-87. Load-bearing and enclosing structures. Moscow: FSUE CCI; 2007. (In Russian).

13. State Standard 7798-70*. Hexagon bolts, product grade В. Construction and dimensions. Moscow: Standartinform Publ.; 2010. (In Russian).

14. State Standard 10178-85. Portland cement and portland blastfurnace slag cement. Specifications. Moscow: Publishing house of standards; 2005. (In Russian).