The engineering method for unifying ground floor slab settlements

    Kęstutis Urbonas Affiliation
    ; Danutė Sližytė Affiliation
    ; Antanas Šapalas Affiliation


For industrial buildings and logistics centres truck lifts are usually used. Therefore, there are special requirements for flatness tolerance of ground floor. The ground floor settlements differences in selected distances are limited. The article reviews the behaviour of soils and the importance of the actual behaviour assessment of soils during the design of floor slab on elastic subgrade. Particular attention is given to the behaviour of floor slab areas above pile foundations that support the building’s columns. Calculation results show the impact of subgrade stiffness on the behaviour of the floor slab, especially in areas above pile foundations, where the stiffness of subgrade is much higher. The article presents a solution for achieving the required level of settlements’ differences in areas where pile foundations for the building’s columns under the ground slab are used. The paper proposes an efficient engineering method to reduce ground slab settlements differences. The results of performed calculations confirm the efficiency of presented method.

First published online 23 March 2021

Keyword : ground floor slab, subgrade reaction coefficient, settlements of the ground floor slab, settlements of piles, flatness of floor slab, numerical modelling

How to Cite
Urbonas, K., Sližytė, D., & Šapalas, A. (2020). The engineering method for unifying ground floor slab settlements. Engineering Structures and Technologies, 12(2), 46-52.
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Dec 31, 2020
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Al-Adhadh, A. R., Kadhim, Z. J., & Naeem, Z. T. (2019). Reviewing the most suitable Soil Improvement Techniques for treating soft clay soil. Journal of Engineering Research and Application, 9(8), 1–11.

Ardah, A., Chen, Q., & Abu-Farsakh, M. (2017). Evaluating the performance of very weak subgrade soils treated/stabilized with cementitious materials for sustainable pavements. Transportation Geotechnics, 11, 107–119.

Bhaduri, A., & Choudhury, D. (2020). Serviceability-based finiteelement approach on analyzing combined pile-raft foundation. International Journal of Geomechanics, 20(2).

Deutsches Institut für Normung (1991). Warehouse systems with guided industrial trucks: requirements on the ground, the warehouse and other requirements (DIN 15185). 7. (In German).

El-Garhy, B., Galil, A. A., & Mari, M. (2018). Analysis of flexible raft resting on soft soil improved by granular piles considering soil shear interaction. Computers and Geotechnics, 94, 169–183.

Elsamee, W. N. A. (2013). An experimental study on the effect of foundation depth, size and shape on subgrade reaction of cohessionless soil. Engineering, 5(10), 785–795.

European Committee for Standardization. (1992). Eurocode 2: Design of concrete structures – Part 1-1: General rules and rules for buildings (EN 1992-1-1).

Gunerathne, S., Seo, H., Lawson, W. D., & Jayawickrama, P. W. (2019). Variational approach for settlement analysis of circular plate on multilayered soil. Applied Mathematical Modelling, 70, 152–170.

Jayarajan, P., & Kouzer, K. M. (2015). Analysis of piled raft foundations. Indian Journal of Science, 16(51), 51–57.

Luo, R., Yang, M., & Li, W. (2018). Normalized settlement of piled raft in homogeneous clay. Computers and Geotechnics, 103, 165–178.

Mayne, P. W., & Poulos, H. G. (1999). Approximate displacement influence factors for elastic shallow foundation. Journal of Geotechnical and Geoenvironmental Engineering, 129(6), 453–460.

Marto, A., Latifi, N., Janbaz, M., Kholghifard, M., Khari, M., Alimohammadi, P., & Banadaki, A. D. (2012). Foundation size effect on modulus of subgrade reaction on sandy soils. Electronic Journal of Geotechnical Engineering, 17, 2523–2530.

Nejad, F. P., & Jaksa, M. B. (2017). Load-settlement behavior modeling of single piles using artificial neural networks and CPT data. Computers and Geotechnics, 89, 9–21.

Pasternak, P. L. (1954). Basics of a new method for analyzing foundations on elastic beds using two subgrade reaction coefficients. Moscow “Gosstroyizdat”.

Piskunov, V. G., & Fedorenko, Y. M. (1994) A dynamic method for monitoring layered slabs on elastic beds. Architecture and Construction in Belarus, (5–6), 10–22.

Sadrekarimi, J., & Akbarzad, M. (2009). Comparative study of methods of determination of coefficient of subgrade reaction. Electronic Journal of Geotechnical Engineering, 14, 1–14.

Sall, O. A., Fall, M., Berthaud, Y., & Ba, M. (2013). Influence of the elastic modulus of the soil and concrete foundation on the displacements of a mat foundation. Open Journal of Civil Engineering, 3(4), 228–233.

Shadravan, S., Ramseyer, C., & Kang, T. H. K. (2015). A long term restrained shrinkage study of concrete slabs on ground. Engineering Structures, 102, 258–265.

Shashkin, K. G. (1999). Using simplified foundation models for coupled analysis of a structure together with its foundation (In Russian)

Terzaghi, K.V. (1955). Evaluation of coefficient of subgrade reaction. Geotechnique, 5(4), 297–326.

The Concrete Society. (2016). Concrete industrial ground floors – A guide to design and construction (Concrete Society Technical Report No. 34).

Timoshenko, S. P., & Goodier, J. N. (1982). Theory of elasticity (3h ed.). McGraw-Hill.

Tomasovicova, D., & Jendzelovsky, N. (2017). Stiffness analysis of the subsoil under industrial floor. Procedia Engineering, 190, 365–370.

Turskis, Z., Urbonas, K., Sližytė, D., Medzvieckas, J., Mackevičius, R., & Šapalas, V. (2020). A novel integrated approach to solve industrial ground floor design problems. Sustainability, 12(12), 4809.

Urbonas, K., Sližytė, D., & Mackevičius, R. (2016). Influence of the pile stiffness on the ground slab behaviour. Journal of Civil Engineering and Management, 22(5), 690–698.

Vlasov, V. Z., & Leontiev, N. N. (1960). Beams, plates, and shells on elastic beds. Physmathgiz. (In Russian).

Winkler, E. (1867). Die Lehre von Elastizitat and Festigkeit [on elasticity and fixity]. Prague.

Xu, L., Shao, W., Xue, Y., Cai, F., & Li, Y. (2019). A simplified piecewise-hyperbolic softening model of skin friction for axially loaded piles. Computers and Geotechnics, 108, 7–16.