1,721,024 research outputs found
Il progetto per il cantiere di restauro della Resurrezione di Piero della Francesca
No full textRicerca metodologica per la progettazione dei cantieri di restauro e progettazione del sistema di cantierizzazione e apprestamenti per il restauro dell'affresco "Resurrezione" di Piero della Francesca nel Museo Civico di Sansepolcro
Computational workspaces management: a workflow to integrate workspaces dynamic planning with 4D BIM
No full textAn effective realization of a building construction project -without incurring in congested site areas or decline of productivity- tightly depends on the construction activities planning process that, should consider and manage site workspaces availabilities. In this context, in the past couple of decades many research efforts have been spent in BIM which represents the process of preparation and use of a computer-generated Building Information Model (BIM) even if effective integrated methodologies and models to assist construction workspaces management are still missing in the field. This contribution proposes an integrated model that aims to automate the creation of a building digital prototype, BIM-based, in which real site condition, in terms of workspaces allocation, are fully simulated. The outputs of a built-in algorithm to define the on-site workspaces configuration pattern based on the space syntax analysis together with a second one to automatically model workspaces geometries with minimizes input work are presented. Those algorithm are integrated in a coherent construction workspaces management workflow and tested on a simplified BIM of an industrial building, succeeding to allocate and model 611 workspaces required to construct 98 building items the BIM is composed of
Ontologies for Knowledge modeling in construction planning: theory and application
Full text linkIl volume prende in esame la dialettica tra fatto e diritto nell’esperienza giuridica di Roma alla luce del principio di apparenza del diritto. Per ciascuna delle principali manifestazioni del principio di apparenza (erede apparente, creditore apparente, rappresentante apparente) \ue8 individuato un possibile antecedente storico nel diritto romano ( possessor pro herede, falsus creditor, falsus procurator), di cui viene proposta una dettagliata analisi sulla base delle fonti antiche e delle interpretazioni dottrinali. Sono poi esaminati i rapporti familiari di fatto (relazioni more uxorio, matrimonium iniustum e concubinato), in quanto riconducibili a loro volta al principio di apparenza. La ricerca, interrogandosi sulle ragioni dell’estensione della disciplina giuridica alla fattispecie apparente, individua una tendenza comune ai vari fenomeni che, pur eterogenei, esprimono la medesima tensione tra fatto e diritto presente negli ordinamenti giuridici di ogni epoca storica
Structural Design and Project Management: a Multi-Criteria Analysis to select the optimal seismic retrofit strategy for systems of complex buildings
No full textThe selection of the optimal strategy to seismically upgrade an existing building is a difficult problem. The difficulty increases in case of a complex buildings system with different strategic requirements in terms of organization layout and structural features. The questions concerns issues such as the complexity to combine management and technical strategies, especially in situations of comparable costs, and the selection of the optimal strategy in a range of possible solutions. It is demonstrated that the best way for influencing final cost obtaining stakeholders’ satisfaction is to intervene at the beginning of Design Stages.
In this contribution we present the implementation of a structured methodology of project management supported by Information Technology for the constructability performance evaluation of different seismic retrofit scenarios in order to choose the optimal retrofit solution in a complex buildings system. Evaluation criteria, using different constructability attributes, combined with evaluation systems are used to grade the different retrofit strategies.
The procedure intends to control building management during constructive phases since the early stage of the project. This is possible through the simulation of construction site in all the different prefigured scenarios. Managing the results in some specific tables, with a specific evaluation system it is possible to assess alternative management strategies. Similarly, taking information from a preset database, the procedure grades technical strategies. Finally combining structural and constructive strategies, the optimal retrofit solution is chosen.
Business Intelligence –mathematical models and decision making systems- applied to BIM technology for optimizing construction process during design phase is further future development in the industrial perspective
Application of Smart Technologies for Assessing Users’ Well-Being for Immersive Design Strategies: A State-of-the-Art Review
Full text linkAs never before, during the COVID-19 pandemic, the effectiveness of the digital design strategies on the user’s well-being has been questioned. However, a research branch astride digital design and neuroscience able to overcome net discipline borders to analyse users’ well-being seems to be lacking. Today mainly qualitative data are used in the design field for the investigation of users’ quality experience. Although fundamental, they also have great disadvantages such as unanswered questions, unconscientious responses, and respondents’ biases. As such, a systematic state of art review is presented to find methodologies and tools currently used in medicine to identify the impact of digital design strategies (XR) on users’ well-being through quantitative and objective data. The main technologies used for this purpose have been synthesized in a schematic chart by reporting the principal related biometric data (skin conductivity, heart rate metrics and breathing rates), as well as other technologies such as video/images/audio analysis based on sensors and machine learning to reach out mass numbers. In conclusion, gaps and future applications of this innovative approach within the virtual environment have been identified by the author
A Decision Support System (DSS) for constructability assessment in seismic retrofit of complex buildings
Full text linkChoosing the optimal strategy for the seismic retrofit of an existing building is a difficult problem. This difficulty increases in the case of complex buildings systems with different strategic requirements in terms of organization layout and structural features. This paper contributes to solving this complexity by combining management and technical strategies, especially in situations of comparable times and costs. It is demonstrated that the best way to obtain final results that are consistent with the initial requirements is to intervene at the beginning of the design stage. To this end the implementation of a Decision Support System (DSS) aided by Information Technology (IT) is presented for making a constructability assessment of the seismic retrofit of complex buildings. Different seismic retrofit scenarios compete to be the optimal retrofit solution. Several evaluation systems are combined with classic constructability-based tools to produce an organic framework. A rule-based engine that utilizes this framework can be implemented on top of user-friendly software. The DSS intends to control building management by prefiguring a real ongoing building execution after the early stages of the project. This is made possible by using the simulation of site safety layout in all compatible scenarios. By managing the output data of IT models it is possible to assess both management and structural strategies. In the end the DSS combines them to choose the most favorable overall solution. Looking towards future development, it can be seen that applications of a BIM Platform integrated with the proposed DSS have considerable potential in construction management practice
Planning, management and administration of HS contents with BIM and VR in construction: an implementation protocol
No full textPurpose: Building construction is considered a complex, dynamic and highly hazardous process, which embraces many factors that are potentially dangerous to workers. Many studies proved that the improvement of preventive and proactive measures – dynamically included in the building design, planning and construction – could reduce site accidents as well as increase the site productivity. In this context, process management models and information visualization techniques such as building information modeling (BIM) and virtual reality (VR) seem to be devoted to strongly contribute to the advancement of the current safety management practices. For these reasons, the presented contribution is based on the assumption that a more nuanced approach for construction worker's safety training is warranted and the authors propose a safety training protocol based on BIM-enabled VR activity simulations. Design/methodology/approach: The methodology comprised a safety training protocol based on BIM-enabled VR activity simulations. The protocol addresses three methodological issues: (1) Planning in terms of training typologies and related health and safety contents to be implemented in the VR construction site scenarios; (2) Management regarding the solution to integrate BIM and game technologies to deliver VR training experiences; (3) Administration in terms of definition of standardized rules to define a safety training schedule in a given construction project. Findings: This work contributes to provide a standardized protocol for a viable integration of BIM and VR technologies for construction safety training in real projects. Practical implications: The VR training protocol was applied to a construction project based in Italy that served as case study for the development of the training sessions' contents and their implementation. This case demonstrated the feasibility of the protocol's implementation and pointed out the drawbacks and limitations on which further efforts need to be spent in order to take the proposed protocol from a prototypical stage to a maturity for its larger-scale adoption from the practitioners involved in construction safety training. Originality/value: The research gives a contribution to reduce the currently existing knowledge gap regarding how BIM and VR can be simultaneously integrated in real projects for construction safety training by using standardized rules to be extensively reproduced in different construction projects. It uses a customized toolkit with a mobile smartphone solution to administer Safety Training Scenarios which increases its portability in construction site compared to PC-based VR solutions
Constructability and safety performance based design: a design and assessment tool for the building process
No full textThe theme of this contribution fits astride two strands of Construction Management Studies: “health and safety risk management” on construction site and “constructability” design approach. Specifically we faces two problems usually considered separately: the lack of specificity, synergy, effectiveness between safety planning and construction process and the lack of concurrence between design and construction process. The proposed approach assigns to design the key role of optimizing both constructability and safety planning in a unique and simultaneous procedure. The purpose is to improve “working plan” design level by specific construction simulation and the related safety assessment in the perspective of the better constructability performance and final building results. The proposed method is a Construction Management Approach supported by design tool based on working directly on design drawings. Starting from the representation of construction details, their construction can be simulated. This is obtained analyzing construction details by means of progressive drawings that express and simulate the breakdown of construction phases, chronologically processed and logically related. In these specific drawings all the elements of the construction site are graphically placed. The procedure allows both to perform the specific and detailed safety assessment for the realization of construction detail components, and to verify the constructability of them. The safety and constructability analysis is so performed in a graphical way during the design process not waiting the construction phase. So we are still able to intervene, if necessary, with amendments under the designer control
On-demand generation of as-built infrastructure information models for mechanised tunnelling from TBM data: a computational design approach
Full text linkWhen dealing with complex curved geometries and massive datasets linked to linear infrastructures, manual generation and maintenance of related multidisciplinary BIM models and documentation are yet to be fully automated. This research focused on the integration of BIM and computational design into an intuitive approach for the generation of as-built models of mechanised tunnelling projects, leveraging the use of the real-time data collected by TBM. A preliminary study of the parameters was conducted to describe the curved geometry of the tunnel, then their mutual alignment was followed by the identification of additional relevant information. To automate the tunnel's BIM-based modelling process, a system of four coupled algorithms was developed and tested with a sample TBM dataset. The results demonstrate how the adoption of computational design methods drastically enhances the modelling process for infrastructure projects, allowing for the on-demand generation of as-built BIM models, reducing time and errors
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