Analysis of Parameters of a Rectified Tank on the Basis of In-Situ Tests

Abstract

The vertical deflection of building structures is a common problem. However, the rectification of objects is rarely carried out due to the lack of information about the parameters of objects requiring rectification. The subject of the analysis are parameters of rectified water tank 950 m3 in volume, which were investigated due to the stiffness and number of supports built into the structure. During in-situ testing, the stiffnesses of supports were determined. The model of the rectified structure was then defined and it was shown that its parameters can be described by means of three matrices: stiffness, displacement forms of the elevated object and displacement forms of supports. Absolute values of elements of the stiffness matrix increased as the stiffness and number of supports increased. At the same time, values of elements of the matrix of displacement forms of the elevated object increased. The conducted energy analysis demonstrated that the amount of energy required for the vertical displacement of the structure decreased with an increasing stiffness and number of supports. This means that placing a greater number of supports under rectified structures and ensuring more rigid supports is beneficial to the rectification. Results of the conducted analyses were confirmed during in-situ tests.

Review of methods for deflected buildings located in mining area of Upper Silesia

“…Rectification planned for a building part kept on the ground and the elevated part is based on meeting limit states in these elements. One of the most important issues is to adopt a model of the rectified structure, which indicates the method of forced displacements during rectification [13] and is used to determine characteristics of these models [14].…”

Construction and Building Materials: Masonry Structures and Reinforced Concrete Structures

“…It is satisfying that nearly all authors presented tests on different materials and types of structures (research scope) and analyses (methods), and referred to practical aspects (design aspects). A few of these papers are particularly important [12,13,16] as they present novel or incidental issues which have rarely been studied. Further, this Editorial describes the scope of particular papers by separating them into reinforced concrete or masonry structures, depending on their focus.…”

“…A unique method of repairing buildings was presented by Gromysz in the paper [12]. Based on his own experience, he described the rectification of a deflected reinforced concrete tank for water with a volume of 950 m 3 .…”

Research on the Characteristics of Jacks Used to Rectify Tilted Buildings

“…The tilt of structures from the vertical is a common phenomenon observed worldwide [1][2][3][4]. It can affect various types of objects, including residential buildings [5,6], industrial structures [7], historic towers [8][9][10], chimneys [11], churches [12], tanks [13], transmission towers [14], grain elevators [15], tall buildings [16], bridge supports [17], piles [18], high-voltage poles [19], and oil platforms [20] under construction. The most common causes of building deflection are uneven settlement of the deformable subsoil [21,22] and the uneven lowering of the ground surface due to underground mining [23,24].…”