scholarly journals A Smart Campus’ Digital Twin for Sustainable Comfort Monitoring

2020 ◽  
Vol 12 (21) ◽  
pp. 9196 ◽  
Author(s):  
Agustín Zaballos ◽  
Alan Briones ◽  
Alba Massa ◽  
Pol Centelles ◽  
Víctor Caballero
Keyword(s):  
Information And Communication Technologies ◽  
Environmental Sustainability ◽  
Smart Cities ◽  
Geographical Area ◽  
Information Modeling ◽  
Physical Parameters ◽  
Modeling Tools ◽  
Student Activities ◽  
Increase Energy Efficiency ◽  
Building Information

Interdisciplinary cross-cultural and cross-organizational research offers great opportunities for innovative breakthroughs in the field of smart cities, yet it also presents organizational and knowledge development hurdles. Smart cities must be large towns able to sustain the needs of their citizens while promoting environmental sustainability. Smart cities foment the widespread use of novel information and communication technologies (ICTs); however, experimenting with these technologies in such a large geographical area is unfeasible. Consequently, smart campuses (SCs), which are universities where technological devices and applications create new experiences or services and facilitate operational efficiency, allow experimentation on a smaller scale, the concept of SCs as a testbed for a smart city is gaining momentum in the research community. Nevertheless, while universities acknowledge the academic role of a smart and sustainable approach to higher education, campus life and other student activities remain a mystery, which have never been universally solved. This paper proposes a SC concept to investigate the integration of building information modeling tools with Internet of Things- (IoT)-based wireless sensor networks in the fields of environmental monitoring and emotion detection to provide insights into the level of comfort. Additionally, it explores the ability of universities to contribute to local sustainability projects by sharing knowledge and experience across a multi-disciplinary team. Preliminary results highlight the significance of monitoring workspaces because productivity has been proven to be directly influenced by environment parameters. The comfort-monitoring infrastructure could also be reused to monitor physical parameters from educational premises to increase energy efficiency.

scholarly journals Towards Effective BIM/GIS Data Integration for Smart City by Integrating Computer Graphics Technique

2021 ◽  
Vol 13 (10) ◽  
pp. 1889
Author(s):  
Junxiang Zhu ◽  
Peng Wu
Keyword(s):  
Computer Graphics ◽  
Smart City ◽  
Smart Cities ◽  
Information Modeling ◽  
Data Conversion ◽  
Geography Markup Language ◽  
Building Models ◽  
Digital Twins ◽  
Gis Data ◽  
Building Information

The development of a smart city and digital twin requires the integration of Building Information Modeling (BIM) and Geographic Information Systems (GIS), where BIM models are to be integrated into GIS for visualization and/or analysis. However, the intrinsic differences between BIM and GIS have led to enormous problems in BIM-to-GIS data conversion, and the use of City Geography Markup Language (CityGML) has further escalated this issue. This study aims to facilitate the use of BIM models in GIS by proposing using the shapefile format, and a creative approach for converting Industry Foundation Classes (IFC) to shapefile was developed by integrating a computer graphics technique. Thirteen building models were used to validate the proposed method. The result shows that: (1) the IFC-to-shapefile conversion is easier and more flexible to realize than the IFC-to-CityGML conversion, and (2) the computer graphics technique can improve the efficiency and reliability of BIM-to-GIS data conversion. This study can facilitate the use of BIM information in GIS and benefit studies working on digital twins and smart cities where building models are to be processed and integrated in GIS, or any other studies that need to manipulate IFC geometry in depth.

scholarly journals Integration of Emergy Analysis with Building Information Modeling

2021 ◽  
Vol 13 (14) ◽  
pp. 7990
Author(s):  
Suman Paneru ◽  
Forough Foroutan Jahromi ◽  
Mohsen Hatami ◽  
Wilfred Roudebush ◽  
Idris Jeelani
Keyword(s):  
Life Cycle ◽  
Building Materials ◽  
Building Information Modeling ◽  
Energy Analysis ◽  
Information Modeling ◽  
Environmental Cost ◽  
Emergy Analysis ◽  
Modeling Tools ◽  
Building Information

Traditional energy analysis in Building Information Modeling (BIM) only accounts for the energy requirements of building operations during a portion of the occupancy phase of the building’s life cycle and as such is unable to quantify the true impact of buildings on the environment. Specifically, the typical energy analysis in BIM does not account for the energy associated with resource formation, recycling, and demolition. Therefore, a comprehensive method is required to analyze the true environmental impact of buildings. Emergy analysis can offer a holistic approach to account for the environmental cost of activities involved in building construction and operation in all its life cycle phases from resource formation to demolition. As such, the integration of emergy analysis with BIM can result in the development of a holistic sustainability performance tool. Therefore, this study aimed at developing a comprehensive framework for the integration of emergy analysis with existing Building Information Modeling tools. The proposed framework was validated using a case study involving a test building element of 8’ × 8’ composite wall. The case study demonstrated the successful integration of emergy analysis with Revit®2021 using the inbuilt features of Revit and external tools such as MS Excel. The framework developed in this study will help in accurately determining the environmental cost of the buildings, which will help in selecting environment-friendly building materials and systems. In addition, the integration of emergy into BIM will allow a comparison of various built environment alternatives enabling designers to make sustainable decisions during the design phase.

Developing a building information modeling–based performance management system for public–private partnerships

2020 ◽  
Vol 27 (8) ◽  
pp. 1727-1762 ◽  
Author(s):  
Jingfeng Yuan ◽  
Xuewei Li ◽  
Yongjian Ke ◽  
Wei Xu ◽  
Zhao Xu ◽  
...  
Keyword(s):  
Performance Management ◽  
Information And Communication Technologies ◽  
Management System ◽  
Building Information Modeling ◽  
Communication Technologies ◽  
Information Modeling ◽  
Performance Management System ◽  
Content Type ◽  
Other Information ◽  
Building Information

PurposeEffective performance management (PM) in public–private partnership (PPP) projects is critical to realizing value for money (VFM). This study aims to provide an in-depth understanding of problems existing in PPP PM and possible avenues for improvement, presenting an experimental system to verify that building information modeling (BIM) and other information communication technologies can improve PPP PM.Design/methodology/approachThe mixed research method adopted in this study combined empirical research with experimental research. Semistructured interviews were used to ascertain the current situation of PPP PM with the help of Nvivo software. A BIM-based performance management system (BPMS), which combines BIM with Web and Cloud technology, was then constructed to achieve performance monitoring, performance measurement, and performance-based payment. Finally, a case study was introduced to explain the function application of the proposed system.FindingsThe case demonstration verified is found to verify that the developed BIM-based execution framework for PPP PM can effectively guide stakeholders toward achieving mixed PM, promote effective PM, and improve work efficiency with the support of BIM and other information and communication technologies.Originality/valueThrough the development of a BPMS for PPP projects, the effectiveness and efficiency of PM are improved. Practical PM applications are also provided to different stakeholders, through which the key performance indicators and the behaviors of the government and private-sector partners can be monitored to form a more comprehensive and reasonable PM mechanism and promote the realization of VFM in PPP projects.

PREVALENCE AND VALUE OF BUILDING INFORMATION MODELING USES IN CONSTRUCTION

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Robert M. Leicht ◽  
Miaomiao Niu ◽  
John I. Messner
Keyword(s):  
Building Information Modeling ◽  
Technological Development ◽  
Information Modeling ◽  
Modeling Tools ◽  
Industry Sector ◽  
Building Information ◽  
The Status ◽  
Construction Tasks ◽  
Level Of Difficulty ◽  
Survey Responses

Despite the growth in interest and rapid technological development of Building Information Modeling tools and processes, the adoption of modeling uses to advance construction tasks in the field have been slow in adoption. A list of 30 modeling uses for construction are presented, based upon previous research that develops a taxonomy of modeling uses for construction specific tasks. This research presents survey responses from over 250 industry practitioners regarding the status of industry adoption, perceived value, and level of difficulty to implement for a list of 30 modeling uses specific to construction. Findings highlight the differing perspectives by industry sector and role. In addition to the providing insights into the status of adoption, the paper will introduce the concept of methods as a key differentiator of construction modeling uses that influence their adoption and value in support of construction tasks.

The use of parametric modeling as the geological description of the surrounding rocks in the workings.

2020 ◽  
Author(s):  
Vitali Shekov ◽  
Andrei Ivanov
Keyword(s):  
Information Model ◽  
Parametric Modeling ◽  
Parametric Models ◽  
Information Modeling ◽  
Physical Parameters ◽  
Planar Surfaces ◽  
Parametric Data ◽  
Building Information ◽  
Parametric Description ◽  
State Models

<p><strong>Abstract. </strong> The use of parametric modeling, similar to BIM (Building Information Model) technology, widely used now in the building construction industry, and very interesting to use this approach in documenting and modeling underground space.</p><p>Unlike construction sites, not reinforced tunnels and underground workings have a very large specific associated with the properties of the surrounding rocks, which are described by specific technical and physical parameters, taking into account their resistance over a long period while using them for the purpose of extracting a useful fossil.</p><p>Geotechnical modules built into Autodesk products are designed to solve specific problems in the construction of concrete tunnels and other facilities related to the bowels. A geological model in that module is a collection of AutoCAD® Civil 3D® triangulation models (planar surfaces) that display the top and bottom of geological layers, indicating the thickness of the geological layer and tracing the boundaries of the surfaces. Solid-state models are formed only at the locations of geological wells, illustrating their composition using conditional 3D AutoCAD® bodies constructed in accordance with good patterns.</p><p>Authors of this presentation propose the primitive families for the description of the geological and structural composition of rocks around the not reinforced tunnels are being developed for the Autodesk Civil 3D and Revit program.</p><p>At the same time the use of the FreeCAD program, which supports the exchange of parametric data in the IFC (Industrial Foundation Classes) format, can be also very promising, which means that the primitives developed in this program can be used in the Autodesk software too.</p><p>Parametric models of rock in the workings can play the role of the information model while calculating the stress, deformations, heat distribution and other physical fields for different technical applications. As an Open Source software with sufficiently developed tools for modeling and parametric description of models based on information modeling, with a certain adaptation, FreeCAD program can be used for this tasks, it can also be used as the basis for creating a unified information system for underground laboratories at different scale of accuracy needed for any calculations.</p>

scholarly journals Semantic VPS for Smartphone Localization in Challenging Urban Environments

Sensors ◽  
2021 ◽  
Vol 21 (18) ◽  
pp. 6137
Author(s):  
Max Jwo Lem Lee ◽  
Li-Ta Hsu ◽  
Hoi-Fung Ng
Keyword(s):  
Smart Cities ◽  
Satellite System ◽  
Urban Environments ◽  
Position Estimation ◽  
Information Modeling ◽  
Position Information ◽  
Precise Position ◽  
Segmented Images ◽  
Building Information ◽  
Global Navigation Satellite

Accurate smartphone-based outdoor localization systems in deep urban canyons are increasingly needed for various IoT applications. As smart cities have developed, building information modeling (BIM) has become widely available. This article, for the first time, presents a semantic Visual Positioning System (VPS) for accurate and robust position estimation in urban canyons where the global navigation satellite system (GNSS) tends to fail. In the offline stage, a material segmented BIM is used to generate segmented images. In the online stage, an image is taken with a smartphone camera that provides textual information about the surrounding environment. The approach utilizes computer vision algorithms to segment between the different types of material class identified in the smartphone image. A semantic VPS method is then used to match the segmented generated images with the segmented smartphone image. Each generated image contains position information in terms of latitude, longitude, altitude, yaw, pitch, and roll. The candidate with the maximum likelihood is regarded as the precise position of the user. The positioning result achieved an accuracy of 2.0 m among high-rise buildings on a street, 5.5 m in a dense foliage environment, and 15.7 m in an alleyway. This represents an improvement in positioning of 45% compared to the current state-of-the-art method. The estimation of yaw achieved accuracy of 2.3°, an eight-fold improvement compared to the smartphone IMU.

scholarly journals BUILDING INFORMATION MODELING (BIM) CONTRIBUTION TOWARDS SUSTAINABILITY: AWARENESS OF MALAYSIAN CONTRACTORS

2020 ◽  
Vol 10 (1) ◽  
pp. 16-25
Author(s):  
Syed Zakaria Sharifah Akmam ◽  
Abdul Rahim Nur Soleha
Keyword(s):  
Construction Industry ◽  
Environmental Sustainability ◽  
Building Information Modeling ◽  
Information Modeling ◽  
Construction Process ◽  
Building Information Modelling ◽  
The World ◽  
Building Information ◽  
Available Technology ◽  
Realistic Information

Building Information Modelling (BIM) has become an attention-grabbing topic among researchers and industry players around the world including Malaysia. As the construction industry always plaguing with issues related to massive waste generated from construction and demolition process, encouraging BIM implementation is considered as one of the available technology-based alternatives to encounter these issues. BIM is a type of technology that offers the development of construction project before the real construction process, which allows the identification of any issues earlier, throughout the design and planning phases. Currently, numerous researches have been focusing on the benefits offered by BIM to the construction industry. However, there are still several construction players who lack awareness of BIM's contribution, especially towards sustainability. The purpose of this paper is to explore the awareness of contractors in Malaysia on the contribution of BIM towards sustainability, namely economic, environmental and social. A total of 133 contractors from grade G1 to G7 were involved in a survey. The results revealed that majority of the respondents were aware on BIM contributions towards environmental sustainability, besides other two sustainability pillars, economic and social. Thereby, there is a need to educate and provide realistic information to the construction industry stakeholders, as a process to create a better understanding and wider exposure, and to convince them to implement BIM technology.

A review of currently applied building information modeling tools of constructions in China

2018 ◽  
Vol 201 ◽  
pp. 358-368 ◽  
Author(s):  
Jingming Li ◽  
Nianping Li ◽  
Jinqing Peng ◽  
Haijiao Cui ◽  
Zhibin Wu
Keyword(s):  
Building Information Modeling ◽  
Information Modeling ◽  
Modeling Tools ◽  
Building Information

scholarly journals BIM Approach for Smart Infrastructure Design and Maintenance Operations

2020 ◽  
Author(s):  
Salvatore Antonio Biancardo ◽  
Nunzio Viscione ◽  
Cristina Oreto ◽  
Francesca Russo
Keyword(s):  
Cross Sections ◽  
Smart Cities ◽  
Digital Terrain Model ◽  
Information Modeling ◽  
Pavement Maintenance ◽  
Terrain Model ◽  
Road Pavement ◽  
Road Design ◽  
Digital Terrain ◽  
Building Information

In the age of the Internet-of-Things and Big Data, Building Information Modeling (BIM) is being expanded into sectors for which it was not originally designed, such as the infrastructure sector, and becomes a necessity for the planning and management of smart cities. The digitization of the urban environment, its building and infrastructural heritage and its services is at the center of the concept of smart city, and this appears strongly linked to the use of BIM on an increasingly extended scale as an enabling tool for planning cities that are increasingly intelligent, sustainable, interconnected and above all liveable. In this chapter a creation process for the digitalization of existing roads, as well-known as reverse engineering method, will be shown as follows: a) modeling 3D digital terrain model; b) creating the horizontal alignment, vertical profiles and editing cross-sections; c) modeling the 3D corridor. As a response to long-term development between BIM and road engineering, this chapter will contribute also by offering innovative and practical solutions for integration of road design and pavement analysis, for a better management and optimization of road pavement maintenance.

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