| HKU |
Defining QS-BIM in Hong Kong |
Thesis |
04/2019 |
LEE Curtise |
-- |
N.A. |
| HKUST |
Construction Lift Planning for Prefabricated Units Based on Building Information Modelng and Optimization Techniques |
FYP |
06/2017 |
LEE, Hoi Yin
LO, Kwong Ching |
In recent years, prefabricated construction has been increasingly employed in building projects, especially in vertical extension of existing building. However, current lift planning mainly relies on experience and instinct of site manager, leading to potentially poor lifting schedule that may incur extra time and costs on lifting operations. This project presents a BIM-based lift planning framework for prefabricated modules in vertical extension project that aims to optimize the lifting schedule of prefabricated modules and provide visualization for actual lifting path of the modules. The framework considers three main models: (1) information extraction and geometry simplification model to obtain the module information and simplify the shape of modules, (2) analysis model to calculate the actual lifting path distance of each prefabricated module, and (3) optimization model for the selection of ideal lifting schedule using genetic algorithm (GA). An illustrative example is presented to illustrate and evaluate the proposed framework. The results show that the proposed framework can generate the shortest lifting path for each prefabricated module automatically. The lift planning for prefabricated modules in vertical extension project can be significantly improved by the developed framework. |
N.A. |
| HKUST |
BIM Model Reconstruction and Checking Using 3D Laser Scanning and Machine Learning Techniques |
Report |
06/2020 |
LEI Ian Wang
IEONG Kuan Pui |
In this project, the semantic segmentation performance of the deep learning model PointNet on Mechanical, electrical and Plumbing (MEP) is studied. Then, data of different similarity is used to test the model and the experiment of the mechanism of PointNet is conduct. Moreover, this project aims to evaluate the feasibility of generating a generalized model for semantic segmentation of MEP based on our own MEP point cloud data. On the other hand, the data preprocessing procedure is introduced. Finally, discussion about the result and conclusion are made. |
N.A. |
| HKU |
Relations between Organizational Change and Building Information Modelling Implementation: A Social Network Analysis |
Thesis |
04/2017 |
LEUNG Hiu Lam |
-- |
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. |
| 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. |
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