Papers by Keyword: Cultural Heritage

Abstract: The design and realization of seismic improvement interventions have proceeded a logic and temporal process: first at all the damage analysis, safety compatible and reversible actions, detailed surveys and direct and historic-documental investigations concerning typologies, geometries, materials and building’s damages; analysis of vulnerability and seismic improvement design of interventions, all approved by Regional Seismic Service and Superintendence of Cultural Heritage; lastly, realization of works according to the project and the law, the quality and the prescriptions of control authorities. The interventions have respected principal design’s purposes, in synthesis: 60% of seismic improvement to the actual laws, even if not compulsory for an heritage building; compatible materials with the originals under the mechanical, physical and chemical aspect; reversible structural interventions respectful to the artefact behaviour before the realization and focused to not modify the spatial, material and chromatic aspect of architectural complex. The principal structural interventions are: restoration, partial rebuilding and reinforcing of groin vaults, mechanical anchors and ringing elements; restoration of load bearing wall elements and improvement of their mechanical characteristics.

Abstract: Technological advances in the digital camera industry and computing resources make the use of photogrammetry a very fast, low-cost, contactless and non-destructive technique. It can represent a good alternative to obtain 3D information for monitoring and conservation of cultural heritage assets, especially where it is not possible to use 3D laser scanners and also in situations where areas to be inspected are not easily accessible [1]. Resolution generally depends on the number of images, their quality and the level of overlap between them, as well as hardware and software capabilities. Starting from 2D aerial or terrestrial photographic images, photogrammetry allows to reconstruct a 3D model in the form of a "point cloud" and also to derive accurate 3D measurements of large architectural elements.This paper is about stereo-photogrammetric scanning by drone performed by MENCI software s.r.l. aimed at the definition of the state of conservation of the “Bridge of the Towers” in Spoleto and its long term preservation without building scaffoldings. It was performed within the RoMA (Resilience enhancement of a Metropolitan Area) project, through an agreement between the “Italian National Agency for New Technologies, Energy and Sustainable Economic Development” (ENEA) and the “Italian Ministry of Cultural Heritage and Activities” (MIBACT).Photogrammetric scanning and FE modelling were applied within the project together with many other monitoring techniques in order to assess the bridge cracks pattern and its structural health by a multidisciplinary approach that allows their mutual validation [2].As one of the most important problems in the use of photogrammetric 3D reconstruction is the considerable demand in terms of hardware and software resources for images processing and data storage, thanks to the HPC (High Performance Computing) resources provided by the CRESCO infrastructure (Research Computational Centre on Complex Systems), it was possible to analyse and process a large amount of high-resolution photos in order to detect the crack pattern and to assess the actual damage state to be monitored over time [3].

Abstract: The reconstruction project of an existing masonry building will be presented in this paper. The building was erected in 1911. The building has a ground floor and three floors. Its façade is protected as cultural heritage. Due to the conversion of the building into a hotel, a lot of interventions have to be done on the existing structure, which significantly changes the properties of the structure and increases the weight of the building, and thus seismic forces. Due to structural assessment, the project was preceded by different on site structural tests. A very detailed 3D FEM model with solid elements was created on which the analysis of the structure was carried out. The results of nonlinear analysis for vertical loads, modal (eigenvalue) analysis, response spectrum analysis and push-over analysis (nonlinear construction stage analysis “sequence analysis”) will be shown. Only when carbon fibers reinforcement was included in the FEM model, the vertical loads were applied. It can be activated for earthquake forces. The comparison between the results for unreinforced and reinforced structure proves increasing carrying capacity of the stone masonry walls after reinforcement with carbon fibers was combined with the masonry walls grouting.

Abstract: Historical wooden trusses carry a lot of information about used tools, technologies or construction processes. Unfortunately they are generally threatened by many dangers, which could cause irreparable damage and loss of the carried information. Protection of historical roof trusses is an important part of efforts to protect our cultural heritage. Wood destroying insects and fungi are the most serious threats to historical roof trusses in our climatic conditions. Their spreading depends on several specific (interior) conditions. These include critical moisture content in the wood, relative humidity, temperature, etc. In addition to these commonly monitored parameters (and their critical levels) we also must not forget the influence of local geography, biotope or orientation to the cardinal. This paper describes temporal fluctuations of some of the mentioned physical parameters in a historical roof truss (in Brno, Czech Republic) with regard to external climatic conditions and orientation to the cardinal.

Abstract: The main goal of this work is to present a complete review of rising damp treatment in building heritage using a technique developed in our group to estimate and mitigate the height of the rising damp front and to predict the improvements of some experimental treatment techniques. The paper present a mathematical and a numerical analyse of the problem; an experimental and a practical application of the technique developed. This work is distributed into six main sections, in addition to this general Introduction: This book chapter is divided in several sections. Initially, it is presented the “state of the art” synthesis, where it is studied the techniques traditionally used for the rising damp treatment, showing the existing limitations on its application in monumental heritage and in old or ancient buildings, with specific characteristics. Then, it is performed the idea and the operating principle of the new technique, known as the wall base ventilation system, on the basis of previously conducted studies. An analytical, numerical and “in-field” study it is presented based in a case study described in detail. Finally, it is done a critical analysis of the results obtained, projecting the future work.

Abstract: This paper presents a study of the process of virtualization or a cultural heritage modeling of Joglo house, an old Javanese house, through observation method. The method consists of three aspects as the following: (1) to observations and measurements, (2) to create a virtual image of the cultural heritage and (3) to integrate the all component of the cultural heritage house, so that the final image is expected to be the replicate of the original house. Additionally, in the process of making traditional Joglo house model, there is another aspect that has been conducted, it was to create harmony between the display of a merger of two and three-dimensional photorealistic models which was made with the help of computer-based applications, namely Computer Aided Design (CAD). As such, by implementing these methods, the reconstruction of cultural heritage of the Joglo house, the Kartasura, can be realized.

Abstract: The paper deals with the stabilization, conservation and strengthening of historic plaster fabrics based on nanofibres. As a result of degradation processes, especially of a chemical nature accompanied by increased humidity historic masonry, there is a loss of cohesion and disturbance od the surface finish and plaster. Traditional remediation techniques and methods normally lead to a reduction of diffuse permeability in multiphase structure and create different expansion properties under the plaster. The undesirable features of these methods are their irreversible character. Currently, there are primarily preferred procedures which stabilize the structure of the external finishes and at the same time preserve the original features of the historical plasters. The paper will be listed in the partial results of the ongoing in-situ and laboratory research applications of fabric based on nanofibres, which are formed by the supporting layer and spinning polymer.

Abstract: This paper aims to focus on the attitude and responses of the stakeholders on the importance of preserving the non-use value of cultural heritage for George Town, Penang World Heritage Site (GPWHS) conservation. This research has examined the possibilities of several attitudes of the stakeholders in explaining the importance of preserving the non-use value for the GPWHS conservation. Pearson’s Correlation and Multiple Linear Regressions were used in predicting the dependent variable using a set of several independent variables. The purpose of the correlation test was to prove whether the correlation between the dimensions of the independent variables has had any influence on the non-use value of cultural heritage for the GPWHS conservation. A face-to-face interviewing technique using the structured CV questionnaire aided by photo images-supported was applied in this survey. The numbers of completed questionnaires were 294 from local residents and 147 from tourists (domestic and foreign) in GTWHS. This paper reveals that there was a relationship between the local stakeholders’ attitude and responses on the importance of preserving the non-use value and the WTP value for the GTWHS conservation.

Abstract: In the process of the economy’s transit into the post-industrial societies to reach sustainability, the tourism industry has been growing through the past half century and has become one of the fastest-growing and largest sectors in the economy. Stability of this source of income demands crucial attempts in diversifying attractiveness of destinations for the purpose of both attracting more visitors as well as increasing their length of stay. In this regard, historic urban heritage has a significant potential and is an important asset, capable of boosting heritage tourism. Rapid development in Malaysia, has resulted in the formation of a global, identical and new image for its cities, particularly, Kuala Lumpur. Urbanization also leads to the deterioration of the Kuala Lumpur historic urban areas so that, the identity and historic image of city is being dominated by modernity. Therefore, this capacity of attraction is being marginalized in competition with other sources of attraction. This paper reports the finding of a study in which reviewing the current literature in addition to analysing the tourism trend and statistics in Malaysia resulted in the conceptualization of a proposed idea. This idea suggests proper consideration for enhancing the capability of Kuala Lumpur historic urban heritage besides its other attractiveness in advocating the tourism industry.

Abstract: Bali is well known as the Paradise Island on the earth. Its unique landscape and culture attract large number of tourists from all over the world. Due to large number of tourist’s inflow several new developments are taking place in Denpasar city to support tourism activities especially in the tourism zone. Sanur beach attracts thousands tourist each year, and the new development of this beach is undeniable. The beach borderline has been declared as one of the cultural heritage in Bali, where the traditional Hindu ceremony took place. But nowadays, the border has interrupted with commercial activity for tourism purposes. Based on empirical research which employed a case study of public open space along the beach, the paper draws on the Balinese experiences with particular reference to Sanur Beach. This paper explores the perception of two different stakeholders with the practices on use of public open space. It argues that global economic have raised new issues for decisions relating to ownership and management of public open spaces and consequently brought effects on cultural heritage. This is reflected that role of government, private sectors involvement and the local community should be urgently improved.