Experimental and Numerical Analysis of Interaction Between Subsoil and Post-Ensioned Slab-on-Ground

Abstract

Graphical abstract AbstractThe paper presents the process of a static load test on post-tensioned concrete industrial floor model in the first part and a numerical model of this task in the second part. The experimental model was designed as a cutout of a post-tensioned concrete industrial floor and the static load test was conceived as a simulation by loading the base plate of a heavy rack. The described static load test was part of a series of experiments focused on the problematics of interaction between concrete structures and subsoil and was realized at

Numerical Solution of Prestressed Foundation - Subsoil Interaction Using FEM

“…If tendons and prestressing force are sized well, it is possible to design relatively thin foundation, maintaining the same structure stiffness with the increased crack resistance, shear and push-through bearing capacity. Experimental tests also confirm a significant increase in resistance of prestressed foundation slabs [7], [8], [9], [10], compared with fiber concrete or reinforced concrete foundations [20], [21].…”

“…The prestressed structures rank among advance construction methods [1], [2], [3], [4], [5]. If compared prestressed [6], [7], [8], [9], [10] with non-prestressed foundations [11], [12], [13], [14], [15], [16] they offer also a number of advantages. Key benefits include thinner plate thicknesses, lower consumption of reinforcement, higher crack resistance, higher stiffness and push-through bearing capacity against upper structure columns.…”

Experimental Analysis of Stresses in Subsoil below a Rectangular Fiber Concrete Slab †

“…The bearing capacity of slabs G05 (25 kg of fibers per m 3 ), G06 (50 kg of fibers per m 3 ), and G07 (75 kg of fibers per m 3 ) corresponded to 478 kN, 550 kN, and 635 kN, respectively. This paper is primarily focused on the soil stress analysis below the slab, and additional detailed information relating to slab behavior during the mentioned experimental works have been explored in other papers [24][25][26]. The comparison of stresses below the three investigated slabs-G05, G06, and G07-related to the loading of 125 kN (before the slab uplift) is presented in Figure 9.…”

Experimental Testing of Punching Shear Resistance of Concrete Foundations

“…Aforementioned tests are performed on the steel frame test equipment (Figures 1 and 2) which is placed outside the premises of the Faculty of Civil Engineering in Ostrava (Czech Republic) (Cajka, 2014;Cajka et al, 2016a,b;Mynarcik et al, 2016;Buchta et al, 2016). The basic principle on this equipment is clear from Figures 1 and 2.…”