Effect of the joint type on the bearing capacity of a multi–drum column under static load

Buzov, Ante; Radnić, Jure; Grgić, Nikola; Baloević, Goran

doi:10.1080/15583058.2017.1396380

Cited by 11 publications

(9 citation statements)

References 20 publications

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“…is issue was investigated by Buzov et al [13] for static loads. e height of the columns was approximately 1200 mm, and their slenderness l was approximately 35. e mass at the top of the column (m 500 kg), which is centrally positioned in relation to its axis, was formed from a rigid concrete block with dimensions of 0.8 × 0.8 × 0.33 m.…”

Section: Tested Columnsmentioning

confidence: 90%

“…e blocks were made of concrete with a compressive strength of 53.55 MPa, obtained on the cylinder according to [14]. Although the subject of this study is stone columns, concrete blocks were used instead of stone blocks for several reasons [13,15]: (i) unreliability of the uniformity of the stone quality (the probable presence of anomalies in the stone), (ii) great similarity of stone and concrete properties (arti cial stone), (iii) low level of maximum stress in the blocks (the collapse of a column is due to the loss of its stability), and (iv) lower research costs. is approach did not greatly inuence the given conclusions of this study.…”

Section: Tested Columnsmentioning

confidence: 99%

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Effect of the Drum Height on the Seismic Behaviour of a Free‐Standing Multidrum Column

Buzov

Radnić

Grgić

et al. 2018

Advances in Materials Science and Engineering

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e results of a shake-table study on the effect of the drum height on the seismic behaviour and bearing capacity of small-scale free-standing multidrum columns are presented. Columns of equal height with one, three, and six drums through their height were considered for the case of their self-weight only and for the case with an additional weight on the top of the column. e columns were exposed to a horizontal base acceleration of three accelerograms by successively increasing the maximum acceleration to their failure. e characteristic displacements and accelerations of the column were measured. It was concluded that an increase in the number of blocks in the column can significantly increase or decrease its ultimate bearing capacity, depending on the type of the applied accelerogram. It is expected that the experimental database can be useful in the validation of nonlinear numerical models for the dynamic analysis of multidrum columns.

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Section: Tested Columnsmentioning

confidence: 90%

Section: Tested Columnsmentioning

confidence: 99%

Effect of the Drum Height on the Seismic Behaviour of a Free‐Standing Multidrum Column

Buzov

Radnić

Grgić

et al. 2018

Advances in Materials Science and Engineering

Self Cite

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“…Until now, studies on vertical displacement have been limited in civil engineering to structural elements, with regard to the lift-slab technology [29,30]. The issue of stability of the reinforced concrete columns being compressed was mainly addressed in the investigations [31,32], where the effect of elements forming the stack on its bearing capacity was examined. Moreover, the investigations of eccentrically loaded walls with the filled joints [33] and of masonry structures with dry contacts points are known [34].…”

Section: Introductionmentioning

confidence: 99%

In Situ Experimental Study on the Active Support Used for Building Rectification

Gromysz

2020

Materials

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There are many vertically deflected building structures in the world that require rectification. Temporary supports installed in the building bearing walls can be used to perform such a rectification. The supports consist of a hydraulic piston jack, a stack of parallelepiped steel elements, and a concrete grout. The structure is unevenly raised and reaches the desired vertical position using such supports. The support in which the piston extension is forced at the given time is an active support. The aim was to determine the stiffness of an active support. The investigations were performed in in situ conditions during experimental building rectification. No such investigations have been performed to date. It has been demonstrated that the stiffness of the investigated support results from the stiffness of the serially connected elements forming the support. In general, the support stiffness depends on the value of the force occurring in the support and is rising linearly along with the load for the investigated range. It was also shown that the force existing in the active support also depends on the stiffness of the building being rectified. The investigations carried out show that it is advantageous to use supports with smaller stiffness for rectification, as forces with smaller values must be induced in them. The application of forces with lower values also allows the avoidance of unfavorable penetration of the unlifted part of the building into the ground.

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“…The bearing capacity of a stack of defined height was demonstrated to decrease along with an increasing number of elements forming that stack [ 5 ]. The test described in the paper [ 6 ] found that reduced transverse strain in elements of the stack increased its bearing capacity. It was demonstrated in the paper [ 7 ] that supporting surfaces of the stack element should be inclined at the angle narrower than 30 degrees.…”

Section: Introductionmentioning

confidence: 99%

Effect of Eccentricity of Applied Force and Geometrical Imperfections on Stiffness of Stack of Cuboidal Steel Elements

Smolana

Gromysz

2020

Materials

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Experimental tests were performed on a stack of cuboidal steel elements and its mathematical model was developed. Each cuboidal element was made of rolled profiles. Such stacks are the part of temporary supports that can be used to eliminate deflections of buildings. Stacks were loaded eccentrically through the inaccurate position of a jack. Moreover, two types of geometrical imperfections could be noticed. They included inaccurate contact between the stack elements and initial relative displacements of profiles that formed cuboidal elements. A mathematical model was developed to describe deformations of the stack and its parameters were determined by analysing test results. The eccentricity of the applied force had a slight impact on the stack stiffness, which was considerably reduced by geometrical imperfections. The imperfection covering initial relative displacements of rolled profiles inside cuboidal elements had the greatest impact on the stiffness. It could cause even a 10-fold drop in the stack stiffness when compared with the theoretical stiffness resulting from the stiffness of the stack section, and the stiffness dropped by ca. 3.5 times when the imperfection included the inaccurate contact between the cuboidal elements. Finally, the occurrence of both types of geometrical imperfections generated the real stiffness more than ten times lower than the theoretical stiffness that did not take into account imperfections.

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Effect of the joint type on the bearing capacity of a multi–drum column under static load

Cited by 11 publications

References 20 publications

Effect of the Drum Height on the Seismic Behaviour of a Free‐Standing Multidrum Column

Effect of the Drum Height on the Seismic Behaviour of a Free‐Standing Multidrum Column

In Situ Experimental Study on the Active Support Used for Building Rectification

Effect of Eccentricity of Applied Force and Geometrical Imperfections on Stiffness of Stack of Cuboidal Steel Elements

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