AbstractAbout AuthorsReferences
When erecting the structures of great length made of Portland cement concrete, temperature-shrinkage joints are executed. The large number of joints in structures over 100 m is not technological when foundation slabs of ceiling floors are used in such facilities as warehouses, shopping centers, hotel complexes. That’s why the technology of erection of jointless structures of large length has been developed. The whole surface is divided into hooks and inserts. Hooks are strips of 30–50 m width and inserts are made of self-stressing concrete. After stabilization of shrinkage deformations of conventional concrete, inserts are concreted. When inserts are enlarging, the elastic compression of hooks concrete takes place that provides the seamlessness and crack resistance of the structure as a whole. The magnitude of shrinkage and enlargement deformations depends on many technological and structural fac- tors. Methods for calculation of the required size of inserts with due regard for these factors impact has been developed
S.B. KRYLOV, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
L.A. TITOVA, Candidate of Sciences (Engineering),
A.I. ZVEZDOV, Doctor of Sciences (Engineering)
L.A. TITOVA, Candidate of Sciences (Engineering),
A.I. ZVEZDOV, Doctor of Sciences (Engineering)
NIIZHB named after A.A. Gvozdev, JSC Research Center of Construction (6, bldg 5, 2nd Institutskaya Street, 109428, Moscow, Russian Federation)
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2. Titova L.A., Titov M.Yu., Krylov S.B., Haritonov V.A. Seamless designs of big extent from the straining concrete with development of mathematical model. Promyshlennoe i grazhdanskoe stroitel’stvo. 2017. No. 1, рр. 45–49.
3. Mikhaylov V.V., Litver S.L. Rasshiryayushchiisya i napryagayushchii tsementy i samonapryazhennye zhelezobetonnye konstruktsii [The extending and straining cements and self-intense reinforced concrete designs]. Moscow: Stroyizdat. 1974. 312 p.
4. Kuznetsova T.V. Ayuminatnye i sul’foalyuminatnye tsementy [Alyuminatnye and sulfoalyuminatny cements]. Moscow: Stroyizdat, 1986. 208 p.
5. Titov M.Yu. Efficiency of use of the expanding additives for waterproof designs. Beton i zhelezobeton – vzglyad v budushchee. Nauch. tr. III Vserossiiskoi (II Mezhdunarodnoi) konferentsii po betonu i zhelezobetonu. Moscow, 2014. Vol. 6, рр. 63–70. (In Russian).
6. Lesovik V.S., Gridchina A.A. Monolithic concrete on the basis of the expanding additives and chemical modifiers. Stroitel’nye materialy [Construction materials]. 2015. No. 8, pp. 81–83.
7. Karpenko N.I. Obshchie modeli mekhaniki zhelezobetona [General models of mechanics of reinforced concrete]. Moscow: Stroyizdat. 1996. 416 p.
8. Hodzhayev S.A. Features of physicomechanical properties of the straining concrete in combined and monolithic designs. Beton i zhelezobeton. 2001. No. 4, pp. 20–23.
9. Jacobson M.Ja., Tropin V.V., Zeyfer A.R., Pochinkin I.I. High-speed technology of construction of industrial buildings from the wide-span previously strained reinforced concrete designs. Sistemnye tekhnologii. 2016. No. 19, pp. 132–136.
10. Zvezdov A.I., Titov M.Yu. Concrete with the compensated shrinkage for construction of crack-proof designs of big extent. Beton i zhelezobeton. 2001. No. 4, pp. 17–20.
For citation: Krylov S.B., Titova L.A., Zvezdov A.I. Calculation of dimensions of self-stressing concrete inserts when constructing jointless reinforced concrete structures of great length. Stroitel’nye Materialy [Construction Materials]. 2017. No. 3, pp. 65–67. DOI: https://doi.org/10.31659/0585-430X-2017-747-4-65-67. (In Russian).