The Subsidence Analysis of Experimental Post-Tensioned Concrete Slab Model in the Course of the Static Load Test

Abstract

This article presenting results of subsidence measurement on experimental post-tensioned concrete slab model during static load test. This subsidence measurement was realized on the large scale concrete slab model and brought important data for computer modeling by FEM (finite element method). The experiment simulated the load effect of the base plate of heavy rack. In the course of the static load test subsidence was measured by set of potentiometric gauges at the particular points in real time. The experiment continue on research activity focused on problematic of interaction between concrete structures and subsoil and was realized at the Faculty of Civil Engineering, VSB – Technical University of Ostrava, Czech Republic.

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.…”

Numerical Modeling of the Interaction of Subsoil and Reinforced Concrete Slab

“…from the point of view of concrete mixture, reinforcement, slab dimensions and its thickness or size of the load area. Process, results and conclusions of the performed loading tests are described in [6,7,8].…”

Industrial floor faults caused by volume changes in concrete and subsoil: case study

“…The influence of fibers on the properties of concrete is also discussed in [10][11][12]. Fiber-reinforced concrete shows a certain residual strength even after failure by brittle fracture [13][14][15].…”