scholarly journals SURVEY METHODOLOGIES AND 3D MODELLING FOR CONSERVATION OF HISTORICAL MASONRY BRIDGES

Author(s):  
I. Trizio ◽  
A. Marra ◽  
F. Savini ◽  
G. Fabbrocino

Abstract. The safeguarding and conservation of built heritage and historical infrastructures represent complex tasks, especially for administrations and stakeholders operating on peculiar and unique territories with specific cultural, social, and economic problems, such as the historical centres of Inner Areas. However, heritage conservation and management processes can be facilitated by multidisciplinary knowledge methodologies based on solutions offered by digital technologies in the field of documentation. This paper aims at defining novel procedures able to enhance available tools towards a real heritage e-government and e-conservation. The integration of laser scanning and photogrammetric survey-based techniques, as well as on the data of the multidisciplinary analysis available in a virtual environment, the implementation of the parametric model of a historical infrastructure has been investigated for assessing the issues related to the preservation and maintenance of these infrastructures, also in relation to their safety and enhancement. The application to a real case study pointed out the opportunities offered by new technologies in the integration of data coming from different research fields, and the reliability of parametric models in visual inspections and, as a consequence, in the planning of interventions of safeguard and conservation as well as those of valorisation of the historical heritage.

2019 ◽  
Vol 2019 ◽  
pp. 1-15 ◽  
Author(s):  
F. Rodrigues ◽  
J. Teixeira ◽  
R. Matos ◽  
H. Rodrigues

Nowadays the built heritage has been recognized as one of the main sectors that can support the economic and sustainable development of countries. In the last years, the built heritage has been subject to several levels of interventions, being now clear its need for a proper maintenance and conservation management. However, in several cases, the maintenance faces lack of building records, which makes the maintenance a harsh, long, and expensive process. Therefore, there is an opportunity and need to apply new technologies, like Building Information Modelling (BIM), as supporting tool to the management of historical heritage. By so, the aim of this work was the development of a management system to be used as a supporting tool to the maintenance and conservation of the existent buildings, in historical context, facilitating to the interested parties the automated and digitized information needed to carry out the most varied tasks, with the particularity to be directly connected to the 3D-BIM model of the building. But in order to test the developed system (its applicability and functionality), it was in an early phase, applied to a pilot project with the significant heritage value. This work follows a development methodology applied to the case study and had different phases: (1) the case study was modelled in Autodesk Revit software, in whose model was inserted all the parametric information and associated metadata; (2) then, a support database of the management system was developed in Microsoft SQL Server, which will support all the information exported from the BIM model; (3) a web application was developed in C# through Visual Studio 2015, which works through and application programming interface (API) allowing the communication between the web application and the BIM model, allowing not only the interaction with the parametric information of this one, but also, a persistent access to a data management system (drawings, inspection reports, specifications, etc.) that has been created. The development of the management system and its application to the case study allows us to show its potential as a tool for the historical heritage management, contributing to its permanent and constantly updated management and cross off the fragmentation and loss of information therefore reducing the consequent investment in data collection.


Author(s):  
Guo-ping Chen ◽  
Jun-san Zhao ◽  
Lei Yuan ◽  
Zun-jie Ke ◽  
Miao Gu ◽  
...  

Abstract. New technologies, such as three-dimensional laser scanning, interferometric synthetic aperture radar (InSAR), global navigation satellite systems (GNSSs), unmanned aerial vehicles (UAVs), and the Internet of Things, will provide greater volumes of data for surveying and monitoring as well as for the development of early warning systems (EWS). This research proposes solutions for the design and implementation of a geological hazard monitoring and early warning system (GHMEWS) for landslides and debris-flow hazards based on data multi-sourced from the aforementioned technologies. We describe the complex and changeable characteristics of the GHMEWS and analyze the architecture of the system, the composition of the multi-source database, the development mode and service logic, and the methods and key technologies of the system development. To illustrate the implementation process of the GHMEWS, we selected Deqin County as the case study area due to its unique terrain and diverse types of typical landslides and debris flows. First, we discuss the system's functional requirements and the monitoring and forecasting models of the system. Second, we examine the logic relations of the overall disaster process, including pre-disaster, disaster rescue, and post-disaster reconstruction, and develop a support tool for disaster prevention, disaster reduction, and geological disaster management. Third, we describe the methods for multi-source monitoring data integration and the generation and simulation of the mechanism model of geological disasters. Finally, we construct the GHMEWS for application to the dynamic and real-time management, monitoring, and forecasting of the entire hazard process in Deqin County.


Author(s):  
Elena Berrón Ruiz ◽  
María Victoria Régil López

The increasing incorporation of new technologies in the education system demands a deep revision in the management processes of the training centers, improving their presence in social networks. The qualitative research presented in this article presents a case study carried out at the Training Center of Teachers and Educational Innovation of Avila (Spain) and pursues two objectives: the first consists in value the usefulness of different strategies to boost and disseminate the training courses through Twitter, while the second seeks to analyze the impact that such dissemination has been on the participation of teachers. The results show that the innovations introduced in the dynamization have aroused the interest of the teachers, increasing the interactions made in the social network and producing a remarkable rise of their participation in the courses.


Author(s):  
F. Carraro ◽  
M. Monego ◽  
C. Callegaro ◽  
A. Mazzariol ◽  
M. Perticarini ◽  
...  

<p><strong>Abstract.</strong> 3D survey methodologies are widely applied to the Cultural Heritage, employing both TLS and close-range photogrammetry with SfM techniques. Laser scanning produces models with high metric reliability and accuracy, whereas the main quality of the 3D photogrammetry is the result in term of photorealistic representation. Many studies have been conducted about the comparison and the integration of these different approaches and the aim of this paper is to contribute with a peculiar case study: the underground Roman bridge of San Lorenzo in Padova (Italy). The investigation regards the resulting point clouds of the intrados (or inner curve) of the central arch, comparing them and providing graphical and analytical outputs. The proposed workflow has the purpose to be a simple but valid tool to detect and evaluate geometrical differences, their significativity and the reliability of the 3D models.</p>


2019 ◽  
Vol 10 (20) ◽  
pp. 84 ◽  
Author(s):  
Enrique Nieto ◽  
Juan José Moyano ◽  
Álvaro García

<p>Building Information Modelling (BIM) is a collaborative system used extensively in the design and management of the Architecture, Engineering and Construction (AEC) industries. Current platforms manage the information as data centres (i.e. databases) related to graphical representations located in 3D parametric models. Today, these new technologies are nowadays being incorporated in heritage assets. This paper aims to establish a methodology, based on these efficient platforms, for studying built heritage, including historical and construction aspects by adding the chronology of those interventions made in the historic building. This case study is focused on the Palace of the Children of Don Gome, a historic building located in the city of Andújar, in Jaén (Spain). The interest of this case study lies in the historic innovations and areas added to this palace. Likewise, the collection and manipulation of the graphic information and data related to the interventions have been based on an interoperable 3D graphic model, which allows users to include all the related documentation from different disciplines associated with the conservation and heritage restoration processes. In this paper, the construction process carried out during the last restoration of the building is studied. Specifically, it analyses the last building intervention in 1989, in particular an area of the coffered ceiling slab in the northern nave, located on the first floor. Within this model, all the elements that constitute the roof of the tower, mudwall walls, slabs and coffered ceilings of the northern nave have been studied, using photogrammetry for data acquisition and 3D modelling, and these data are included in a 3D digital model of the building generated using ArchiCAD software. Moreover, the system will be used to improve the management of the information obtained during heritage maintenance, creating a record of the whole building life cycle. As well as the historical documentation and graphical research, and the analysis of the procedures carried out during the last refurbishment of the building, new building construction system proposals have arisen which have been modelled to fulfil the Level Of Development (LOD) 300. Further analysis of these construction solutions used provides knowledge of how large 16th century palaces were built, and the kind of restoration conducted by architects at the end of the 20th century. The results obtained show how current BIM platforms are able to record construction and evolutionary aspects of a building’s history, by identifying all the original elements and classifying them before their demolition. Also, by making a detailed inventory of the whole coffered ceiling in which the position and the temporal order (original – later addition) of the elements are included, it is possible to virtually replace those elements in their original positions, reducing the visual impact of the intervention. On the other hand, multiple errors in projects based on graphical systems of representation, mainly Computer-Aided Design (CAD), may derive from contradictions in the official sources consulted, such as the plans of the cadastre, the city council, and those produced through manual measurement procedures. However, in this paper, real graphical documentation has been generated using specific 3D surveying techniques for capturing geometry and accurate measurements, as well as by utilising the BIM system.</p>


Author(s):  
Stephan M. Wagner ◽  
Stefan Kurpjuweit

Firms are keen to benefit strategically from startups by applying new technologies, products, or services that increase productivity of processes and competitiveness of products. Besides tapping into entrepreneurial innovations through traditional collaboration models such as corporate venture capital or R&D alliances, firms have increasingly begun engaging with startups upon supplier relationships. These buyer–supplier relationships, which are asymmetric by nature, create opportunities for both sides to access, leverage, and combine a partner’s complementary resources as well as to apply new and valuable capabilities, which may ultimately lead to a mutual competitive advantage. However, many attributes that make startups highly attractive partners for increasing the productivity of processes or the innovativeness of products create substantial challenges for buying firms when collaborating with these young firms. Recent empirical evidence suggests that startups are increasingly considered as a new supplier type, which requires the adaptation of conventional supplier management processes and practices by buying firms to achieve desired relationship outcomes. Against this background, this chapter’s purpose is to elaborate on how firms can use ‘procurement’ processes to benefit strategically from startups and how to manage startups as suppliers. The chapter identifies specific challenges that arise from these asymmetric partnerships and provides insights from an in-depth case study of the BMW Startup Garage, offering firms guidance on how to overcome these challenges. The chapter shows how the automaker establishes buyer–supplier relationships with startups and a fast track into BMW. Finally, the chapter also provides recommendations for future research endeavors.


Author(s):  
L. Zhang ◽  
A. Wang

<p><strong>Abstract.</strong> In recent years, new technologies have been developed and applied in the field of heritage conservation, such as Three-dimensional-terrestrial laser scanning (TLS). The academia pays more attention to the heritages which remain relatively intact, but neglects those destroyed. Research on information collection and restoration of sites helps to better protect the damaged sites and deepen people's understanding of the value of heritage. This study will conduct a detailed survey of the status quo of the site, providing basic information for the protection of the site. At the same time, the existing archives and documents are excavated and sorted out, and the restoration research of Qiwang Hall is carried out on the basis of the site and archives, which can make up for the shortcomings of the previous research and provide a reference of methods for the relevant research.</p>


2015 ◽  
Vol 3 (2) ◽  
pp. 201-218
Author(s):  
Francis Chuma Osefoh

Some of the renowned world tourism countries have special peculiarities in character in terms of their nature reserves and built environments; that made them stand out for their attractions and visits. These qualities range from conservation and preservation of nature reserves, built environments- epoch architectural supports over the years; historical heritage; political; religious; socio-economic; cultural; and  high technology that enhance culture. The virtues of multi- ethnic groups and multi- cultural nature gave Nigeria a rich cultural heritage, and she is blessed with natural wonders, unique wildlife, and a very favorable climate. More often than not less attention and importance are placed over the nature reserves and built environments to the detriment of tourism in lieu of other sectors. Summarily the country lacks the culture of conservation and preservation of her abundant resources to promote cultural tourism. Case study strategy was applied in the research tours with reports of personal experiences, documentaries and analyses of sites visited in Europe and Nigeria were highlighted with references to their attributes in terms of structures and features that made up the sites as relate to culture and attraction.The task in keeping rural, city landscapes and nature reserves alive stands out as the secret of communication link from the past to present and the future; which tourism developed nations reap as benefits for tourist attraction.


2013 ◽  
Vol 16 (1) ◽  
pp. 59-67

<p>The Soil Science Institute of Thessaloniki produces new digitized Soil Maps that provide a useful electronic database for the spatial representation of the soil variation within a region, based on in situ soil sampling, laboratory analyses, GIS techniques and plant nutrition mathematical models, coupled with the local land cadastre. The novelty of these studies is that local agronomists have immediate access to a wide range of soil information by clicking on a field parcel shown in this digital interface and, therefore, can suggest an appropriate treatment (e.g. liming, manure incorporation, desalination, application of proper type and quantity of fertilizer) depending on the field conditions and cultivated crops. A specific case study is presented in the current work with regards to the construction of the digitized Soil Map of the regional unit of Kastoria. The potential of this map can easily be realized by the fact that the mapping of the physicochemical properties of the soils in this region provided delineation zones for differential fertilization management. An experiment was also conducted using remote sensing techniques for the enhancement of the fertilization advisory software database, which is a component of the digitized map, and the optimization of nitrogen management in agricultural areas.</p>


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