| HKUST |
Integration of BIM and GIS for City Planning |
Report |
06/2014 |
LI Zhi |
With the popularity of 3D digital maps for computers and mobile phones, the development of 3D city models has grown substantially in the last decades. 3D maps can not only support navigation, but also allow people to perform city planning and architectural and engineering designs with the consideration of the surrounding environment. Moreover, many other advanced applications have been studied to be equipped in 3D models, like disaster management, noise and pollutant diffusion analysis and so on. Earliest research on 3D digital city models was in 1990s and now there are about a total number of 1252 3D digital city models worldwide already.
Since the early 1990’s, lots of researchers have conducted studies in creation, application and maintenance of 3D city models. The study results indicate that the modeling construction techniques and application exploitability has improved significantly in last decades. However, the level of development of existing models varies widely in view of geographic locality (either city or country), creation time and many other factors. A standardized evaluation framework of the existing 3D city models is still in need.
Based on the purpose of setting up an evaluation framework, this review work was conducted. Mainly through literature review and searching on project websites, we collected original sources of more than 70 projects of 3D city models and 23 are chosen for detailed study and analysis. These city models are mainly categorized in four continents (North America, Europe, Asia and Oceania) and in four aspects (model coverage, modeling technology, application and maintenance).
To the point, a preliminary model estimation method is created, considering the maturity of five aspects during modeling procedures, i.e. data capturing, data processing, data storing and managing, data presenting and data updating. According to the evaluation framework, city models can be categorized into four maturity levels as 3D GIS as a Scene, 3D GIS as a Service, 3D GIS as an Infrastructure and 3D GIS as a Platform. Finally, based on the analysis results, some limitations of 3D city models in current situation are summarized, and recommendations of possible resolutions are presented correspondingly. |
N.A. |
| HKUST |
Comparison of Building Management Systems and Integration of Sensors with BIM for Facility Management |
Report |
06/2018 |
LI Weixia
Zhang Yini |
In contemporary, the requirements for promoting facility management efficiency is increasing. The traditional facility management may cost too much workforce, too much energy and money. In addition, it cannot meet people’s demand of sustainable development and the requirements of offering a comfortable environment indoors.
With the rapid development of BIM and IoT technology, we would like to make use of those technology to solve this problem. In this project, based on optimizing the facility management of student residual building which located at HKUST, some superficial attempts are made. In the project, the current situation of traditional facility management and the development of BIM and Internet of Things technology are firstly studied. Then, we introduce the application of BIM and IoT technology on facility management, and its benefits as well as weakness. Then we compare some famous and widespread brands products in BMS field. Finally, this project concluded some possible improvement and some future work. Also, we describe the picture of applying this application in realistic which can show the great potential of applying BIM + IoT technology in future facility management. |
N.A. |
| HKUST |
Developing an Integrated Location-based Collaborative Building Information Modeling Framework for Building Facility Management |
FYP |
06/2018 |
LEUNG, Tsz Fung
MAN, Tsz Lok |
This project reviews some of the existing Indoor positioning system (IPS) and finds that Wi-Fi would be a suitable choice to be incorporated with Building Information Modelling (BIM) for the purpose of facility management. Indoor localization and finding of the shortest path are two major aspects which could combine with facility management and this project is going to investigate into them.
As Wi-Fi positioning is controlled by some factors like k-means clustering and the number of fingerprints, an experiment was conducted to see how these factors would affect the accuracy of indoor localization. The result would be discussed also. In an experiment of finding the shortest path, visibility graph and Dijkstra algorithm are two techniques used for path-generation and path-finding respectively. They would be written as codes and implemented into a mobile App. The App would be the product to test the above experiments and East Point City, which is a shopping mall, would be the chosen for the field test.
The simulation of the interaction between building management system and pathfinding system android devices was carried out successfully, which reveals the high possibility of the application of BIM on indoor navigation system for the purpose of facility management, which could potential enhance human productivity. |
N.A. |
| HKUST |
Rebar Prefabrication Automation Leveraging BIM Technology |
FYP |
06/2020 |
LEUNG, Jing
WONG, Ngo Nam Andrew |
The construction industry attempts to focus on innovative construction methods and the use of IT to enhance productivity. In recent years, the application of Building Information Modelling (BIM) technology is more common in the market. BIM provides a platform for data exchange of different parties without any format conversion which facilitates cross-discipline communication. The Hong Kong government has been the pioneer in applying BIM in the design of some government capital projects to foster its usage in HK. However, BIM facilitates the stage of planning and designing, there should be ways to improve the performance in the construction stage. Dynamo is a built-in software of Revit to be used in this project to develop the construction information technology.
The objectives of this report are to introduce the use of Dynamo scripts for the generation of BVBS code, barcode, schedule, and drawings for automatic rebar fabrication with the assistance of Dynamo to a Revit BIM model. With the automatic generation and implementation of IT, time can be shortened and accuracy can be enhanced. By running the Dynamo scripts in this research, standardized detailed drawings and bar bending schedules can also be obtained automatically. |
N.A. |
| HKUST |
Automatic Generation of BIM Models Based on Photogrammetry and Laser Scanning Point Cloud Data |
FYP |
06/2019 |
LEUNG, Chi Ching
SONG, Changhao |
As-built drawings are essential to provide information about the most updated configuration of a facility or a structure for project delivery and facility management. Yet, it is stated that approximately 55% of the as-built drawings was found mismatching with the updated configuration of the building, incurring an additional cost of $4.8 billion for verification of the as-built drawings. This paper aims to develop a more advanced method towards automated generation of BIM model using point cloud data from laser scanning based on that developed previously by our research team, reducing labour, cost and time consumed in modelling processes. Geometry information extraction was conducted to each category of the point cloud data with the aim to obtain parameters for automated parametric modelling using Dynamo command networks. The proposed approach was validated by successfully generating as-built Revit models for 3 different sites. |
N.A. |
| HKU |
Relations between Organizational Change and Building Information Modelling Implementation: A Social Network Analysis |
Thesis |
04/2017 |
LEUNG Hiu Lam |
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N.A. |
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