Terrestrial laser scanning for the comprehensive structural health assessment of the Baptistery di San Giovanni in Florence, Italy: an integrative methodology for repeatable data acquisition, visualization and analysis

Heß, Michael Reinhard; Petrovic, Vid; Yeager, Mike; Kuester, Falko

doi:10.1080/15732479.2017.1349810

Cited by 30 publications

(19 citation statements)

References 47 publications

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“…Along with modeling of existing bridges, Chen et al (2012) used TLS together and simple algorithms to retrieve damage information from geometric point cloud data. Terrestrial laser scanners have also been used to measure bridge clearance (Liu et al 2012;Riveiro et al, 2013;Riveiro et al 2012;Watson et al, 2012), bridge displacement during load testing (Liu et al, 2010), and to perform structural health assessments (Hess et al 2018). Vaghefi et al (2012) assessed 12 remote sensing technologies and their potential to detect various common problems in US bridges, concluding that 3D optical technologies have considerable potential for documenting surface-related defects.…”

Section: Introductionmentioning

confidence: 99%

3D reconstruction of existing concrete bridges using optical methods

Popescu

Täljsten

Blanksvärd

et al. 2019

Structure and Infrastructure Engineering

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Routine bridge inspections usually consist of visual observations. These inspections are time-consuming and subjective. There is a need to identify new inspection techniques for infrastructure that reduce traffic disturbance, and improve the efficiency and reliability of the acquired data. This study compared the performance of three different imaging technologies for the three-dimensional (3D) geometric modeling of existing structures: terrestrial laser scanning, close-range photogrammetry, and infrared scanning. Each technology was used to assess six existing concrete railway bridges. The technologies were compared in terms of geometric deviations, visualization capabilities, the level of the inspector's experience, and degree of automation. The results suggest that all methods investigated can be used to create 3D models, however, with different level of completeness. Measurements such as span length, deck widths, etc. can be extracted with good accuracy. Although promising, a full off-site inspection is currently not feasible as some areas of the bridges were difficult to capture mainly due to restricted access and narrow spaces. Measurements based on terrestrial laser scanning were closer to the reality compared to photogrammetry and infrared scanning. The study indicates the no special training is needed for photogrammetry and infrared scanning to generate a 3D geometric model.

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Section: Introductionmentioning

confidence: 99%

3D reconstruction of existing concrete bridges using optical methods

Popescu

Täljsten

Blanksvärd

et al. 2019

Structure and Infrastructure Engineering

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“…The baptistery has an octagonal structure with eight curved ceiling panels comprising the dome of the building. While the earliest reference to the structure occurs in 897 AD; the foundations of the structure have been dated to the Roman era (Hess et al, 2018). At the present moment, the Roman foundation walls exhibit a large degree of cracking (Figure 2 (Napolitano et al, 2019c,d;).…”

Section: Baptistery DI San Giovannimentioning

confidence: 99%

“…Cloud-to-cloud alignment was used in Faro Scene to align the different scans. In addition to TLS, high-resolution photographs were taken to capture the existing damages (Hess et al, 2018). An orthographic projection of the resulting 3D model was imported into a CAD program to extract the exact geometry of the stones and mortar.…”

Section: Documentation Of Geometry and Existing Conditionsmentioning

confidence: 99%

Understanding the Effects of Documentation Detail on Diagnostics Of Historic Structures

Napolitano

Heß

Glišić³

2019

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

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<p><strong>Abstract.</strong> Before reinforcements or new construction are added to historic structures, it is important to understand how the existing damage could have arisen. Often to do this, documentation methods such as laser scanning and photogrammetry are used to capture the existing conditions and physics-based models are used to simulate the response of a facsimile structure to various responses. Something that varies quite a bit though is the level of detail used to capture the existing conditions as well as the level of detail used to represent the structure during physics-based modelling. This paper aims to understand the effects of documentation detail on diagnostics of historic structures. To do this, two masonry structures were documented with laser scanners, photographs, and thermal images. For each case study, three-dimensional models of varying fidelity were generated based on the results of simulation. The response of these models to loading conditions was then calculated using a physics-based modelling technique called finite-distinct element modelling. The results for each case study are compared to understand the impacts of geometry on diagnostics; discussion about future tools to augment current practices is included.</p>

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“…Various case studies have been carried out on the monitoring of engineering structures, including buildings [ 104 , 145 ], dams [ 113 , 122 , 126 , 130 ], bridges [ 59 , 100 , 105 , 106 , 108 , 109 , 110 , 116 , 118 , 119 , 121 , 123 , 124 , 128 , 137 , 144 ], tunnels [ 57 , 80 , 103 , 107 , 114 , 115 , 117 , 125 , 127 , 129 , 131 , 132 , 134 , 135 , 136 , 139 , 140 ], stations [ 99 , 143 ], foundation pits [ 186 ], pipe racks [ 52 ], towers [ 101 ], and many others. In addition, another main direction of studies for deformation measurement is to perform structural health monitoring of infrastructures that are in service for a long time, especially for masonry [ 99 , 144 , 187 , 188 , 189 ] and wooden struct...…”

Section: Research Topics Related To Tls In the Aec Industrymentioning

confidence: 99%

Application of Terrestrial Laser Scanning (TLS) in the Architecture, Engineering and Construction (AEC) Industry

Yuan

Yang

et al. 2021

Sensors

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As a revolutionary technology, terrestrial laser scanning (TLS) is attracting increasing interest in the fields of architecture, engineering and construction (AEC), with outstanding advantages, such as highly automated, non-contact operation and efficient large-scale sampling capability. TLS has extended a new approach to capturing extremely comprehensive data of the construction environment, providing detailed information for further analysis. This paper presents a systematic review based on scientometric and qualitative analysis to summarize the progress and the current status of the topic and to point out promising research efforts. To begin with, a brief understanding of TLS is provided. Following the selection of relevant papers through a literature search, a scientometric analysis of papers is carried out. Then, major applications are categorized and presented, including (1) 3D model reconstruction, (2) object recognition, (3) deformation measurement, (4) quality assessment, and (5) progress tracking. For widespread adoption and effective use of TLS, essential problems impacting working effects in application are summarized as follows: workflow, data quality, scan planning, and data processing. Finally, future research directions are suggested, including: (1) cost control of hardware and software, (2) improvement of data processing capability, (3) automatic scan planning, (4) integration of digital technologies, (5) adoption of artificial intelligence.

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Terrestrial laser scanning for the comprehensive structural health assessment of the Baptistery di San Giovanni in Florence, Italy: an integrative methodology for repeatable data acquisition, visualization and analysis

Cited by 30 publications

References 47 publications

3D reconstruction of existing concrete bridges using optical methods

3D reconstruction of existing concrete bridges using optical methods

Understanding the Effects of Documentation Detail on Diagnostics Of Historic Structures

Application of Terrestrial Laser Scanning (TLS) in the Architecture, Engineering and Construction (AEC) Industry

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