The Use of Surface Laser Scanning for Creation of a Three-dimensional Digital Model of Monument

Кузнецова, И. А.; Kuznetsova, Darya A.; Rakova, Xeniya Mikhailovna

doi:10.1016/j.proeng.2015.01.536

Cited by 7 publications

(7 citation statements)

References 11 publications

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“…The monitoring of linear strains is described in [28] and that of non-linear surfaces is stated in [29]. The control over the strains may be carried out by different ways: laser scanning [30][31][32] (which allows the determination of seismic loadings, according to [33]); photogrammetry [34]; determination of drill-hole inclination and direction [35] and tachymetry survey [36].…”

Section: Discussionmentioning

confidence: 99%

Selection of tachymetry spacing in the process of monitoring of construction projects

2019

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The urbanization of territories and the increase in density of urban development cause the necessity of introduction of improved structural solutions into the construction practice. This is also connected with both the erection of higher buildings with longer span structures and the use of non-standard methods for the analysis of structures. The introduction of modern structural patterns lessens considerably the weight of structures, reduces the consumption of materials and cuts the construction production costs. At the same time, the responsibility for the construction projects enhances. A systematic control over the state of structures including a quasi-continuous one, allows us to reveal the very beginning of destructive processes and to take measures for their liquidation. One of monitoring methods is the tachymetry survey of positions of a number of adjusting marks fixed at the structural elements. The non-reflection mode of operation of tachymetry survey allows lifting the restrictions for the number of points under observations. The combination of the afore-said factors determines the urgency of the use of the tachymetry as a tool for monitoring the state of the construction project. The subject of the study: the subject of the present research work is the methodology of selection of tachymetry spacing during the deformation monitoring of a construction project. The tachymetry can be carried out both in the mode of focusing on pre-established marks, and in the non-reflection mode through the points on the structure. The disadvantage of the first method is the need of installation of light-reflecting marks, which is not always possible due to some technical and/or aesthetic reasons and may lead to a significant increase in the cost of monitoring. The disadvantage of the second method is a reduced accuracy of the measurements. A wide incremental step may lead to the failure of detection of deformation processes, a narrow step means a considerable increase in the monitoring time and an unjustified rise in the cost of monitoring. Objectives: the purpose of this research work is the optimization of tachymetry spacing, which will reveal all deviations of structural elements from their permanent positions by a value exceeding the accuracy of measurements. Materials and methods: the initial material for the study included the results of geodetic observations carried out at various construction projects, in particular, the tachymetry results. The method of study includes the comparing of the limiting admissible curvature value to the minimum deformation value measured with the tachymeter accuracy. Results: a methodology is suggested for the selection of the tachymetry survey step. On its basis, a formula for the determination of a step value is offered that takes into account the geometry of the structure, the strain capacity of the material and the accuracy of the survey. Conclusions: the obtained results allow us to optimize the number of the observation points during the tachymetry survey and to ensure the detection of all destructive effects associated with structural geometry changes at the construction project. The descriptions of the methodology are recommended for their application in the development of geodetic monitoring programmes.

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Section: Discussionmentioning

confidence: 99%

Selection of tachymetry spacing in the process of monitoring of construction projects

2019

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“…); x graphic and / or photographic images of the locations and nature of defects and damage (in the case of performing photo fixation necessarily drawn a scheme indicating points and photographing direction) [10]; x conducting field structural testing (if necessary); x determining the actual strength and deformation characteristics of the materials from which made the main building constructions and their elements; x determining the actual operating loads and impacts that perceived by the constructions at the time of the survey, as appropriate, taking into account the possible influence of the soil strain base; x determining the actual design scheme of the building or structure and its individual construction elements; x definition of calculating forces in constructions, that perceive current loads, and, in the case of building adaptation, additional projected operating loads; x calculation of the bearing capacity of constructions and parts of the building taking into account the results of the survey; x cameral processing and analysis of the survey results and calibration calculations; x determining the causes of defects and damages in constructions; x compose technical conclusion with findings about the technical condition of constructions on the results of the survey; x diagnostics of the construction materials condition; x the results of engineering and environmental studies. c. Measuring work at the engineering and technical researches [6].…”

Section: The Methods Used To Study the Technical Condition Of The Objmentioning

confidence: 99%

Scientific aspects of the survey and evaluation of the technical state in implementation of preservation projects of cultural heritage objects

Akristiniy

2017

MATEC Web Conf.

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Abstract. The article examines the basic provisions that regulate the composition and volume of complex engineering and technical studies needed for the definition of a technical condition, implementation of repair and restoration projects, conservation and adaptation for the modern use of cultural heritage objects, as well as to obtain reliable data on occurrence of the causes of deterioration and developing recommendations to ensure their preservation.

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“…The number of destroying monuments of historical heritage is quite large with limited financial resources allocated for the implementation of conservation programs, in connection with which the solution of this problem is the most urgent problem for now [5,11].…”

Section: Matec Web Of Conferences 193mentioning

confidence: 99%

The organizational mechanism for the formation of programs for the renovation of cultural heritage objects on the basis of the value approach

Akristiniy

2018

MATEC Web Conf.

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Abstract. The article discusses the issues of preservation of cultural heritage objects due to their mass loss by creating a mechanism for the efficient selection of objects subject to renovation. The algorithm for the calculation of the degree of deterioration of the building and the integral index of value is proposed. The problem of definition of the objective function with respect to which is characterized by the objective function of the optimal feature set and the problem of definition of the target functions of state programs of renovation are solving preservation.

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The Use of Surface Laser Scanning for Creation of a Three-dimensional Digital Model of Monument

Cited by 7 publications

References 11 publications

Selection of tachymetry spacing in the process of monitoring of construction projects

Selection of tachymetry spacing in the process of monitoring of construction projects

Scientific aspects of the survey and evaluation of the technical state in implementation of preservation projects of cultural heritage objects

The organizational mechanism for the formation of programs for the renovation of cultural heritage objects on the basis of the value approach

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