The reduction in errors associated with ultrasonic non-destructive testing of timber arising from differential pressure on and movement of transducers

Chapman, Margaret; Norton, Brian; Taylor, Jason; Lavery, David

doi:10.1016/j.conbuildmat.2004.11.004

Cited by 6 publications

(2 citation statements)

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“…Additionally, it is necessary to conduct a strength check of each member by identifying the strength of the material through structural classification of timber. Assessments of the structural conditions and load-bearing capacities of timber roof structures are possible by structural analyses (Chapman et al, 2006;Yang et al, 2017). Thus, accurate and detailed data acquisition tools must be used to achieve consistent and complete structural assessments of historic timber-based constructions (Santos et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Automatic completion of geometric models from point clouds for analyzing historic timber roof structures

Özkan,

Pfeifer,

Hochreiner

2024

Front. Built Environ.

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Laser scanners are being increasingly utilized in the engineering community to collect accurate and dense 3D data on timber roof structures. Point clouds, which are produced by either scanning or photogrammetry, can be subsequently processed using specialized software to create geometric models of individual components of the roof structure manually. Manual modeling of each structural element in a computer-aided-design-based structural analysis software application is a labor-intensive and time-consuming process, whereas automatic modeling typically yields incomplete results in terms of the numbers and sizes of individual beams owing to shortcomings in data acquisition or data processing. In the context of structural assessment, full-scale modeling of each beam is mandatory for a holistic analysis of structural health. This study addresses the gap between automated roof-structure models and preliminary structural assessments through a hierarchical analysis and refinement of the geometric model. The proposed method was applied to two different roof structures, and structural assessments show that it is feasible to import and process the generated models in a structural analysis software application. The resulting structural models indicate that the workflow improves the months of time consumed by optional mistakes from manual contributions to less than a week without the uncertainties caused by human error.

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Section: Introductionmentioning

confidence: 99%

Automatic completion of geometric models from point clouds for analyzing historic timber roof structures

Özkan,

Pfeifer,

Hochreiner

2024

Front. Built Environ.

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“…They reported that timber beam structures were not the object of conservation and appropriate * Corresponding author repair in many countries and were suffering from neglect and alteration. Structural analysis is the only way to assess the structural condition and load-bearing capacity of the beam structure (Chapman et al, 2006), which is extremely important to the building roof conservation. The structural analysis depends highly on the as-built model close to the real situation, including various aspects of inputting parameters (geometry, materials and joint relationship).…”

Section: Timber Roof and Beam Frame Systemmentioning

confidence: 99%

Parametric Modelling of as-Built Beam Framed Structure in Bim Environment

Yang

Koehl

Grussenmeyer

2017

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:A complete documentation and conservation of a historic timber roof requires the integration of geometry modelling, attributional and dynamic information management and results of structural analysis. Recently developed as-built Building Information Modelling (BIM) technique has the potential to provide a uniform platform, which provides possibility to integrate the traditional geometry modelling, parametric elements management and structural analysis together. The main objective of the project presented in this paper is to develop a parametric modelling tool for a timber roof structure whose elements are leaning and crossing beam frame. Since Autodesk Revit, as the typical BIM software, provides the platform for parametric modelling and information management, an API plugin, able to automatically create the parametric beam elements and link them together with strict relationship, was developed. The plugin under development is introduced in the paper, which can obtain the parametric beam model via Autodesk Revit API from total station points and terrestrial laser scanning data. The results show the potential of automatizing the parametric modelling by interactive API development in BIM environment. It also integrates the separate data processing and different platforms into the uniform Revit software.

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Physical and mechanical characterization of traditional Brazilian clay bricks from different centuries

et al. 2020

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The reduction in errors associated with ultrasonic non-destructive testing of timber arising from differential pressure on and movement of transducers

Cited by 6 publications

References 1 publication

Automatic completion of geometric models from point clouds for analyzing historic timber roof structures

Automatic completion of geometric models from point clouds for analyzing historic timber roof structures

Parametric Modelling of as-Built Beam Framed Structure in Bim Environment

Physical and mechanical characterization of traditional Brazilian clay bricks from different centuries

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