VIETNAM NATIONAL UNIVERSITY HO CHI MINH CITY HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY DO DUY LINH COMBINING BUILDING INFORMATION MODELING (BIM) AND CHOOSING BY ADVANTAGES (CBA) METHOD TO SELECT DESIGN-CONSTRUCTION SOLUTIONS TOWARD SUSTAINABLE CONSTRUCTION IN VIETNAM Major: CONSTRUCTION MANAGEMENT Major code: 8580302 MASTER’S THESIS HO CHI MINH CITY, July 2023 THIS THESIS IS COMPLETED AT HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY – VNU-HCM Supervisor: Assoc. Luong Duc Long Examiner 1: Assoc. Tran Duc Hoc Examiner 2: Dr. Chu Viet Cuong This master’s thesis is defended at HCM City University of Technology,VNU- HCM City on 13th July 2023 Master’s Thesis Committee: 1.
Nguyen Anh Thu - Chairman 2. Huynh Nhat Minh - Secretary 3. Tran Duc Hoc - Reviewer 1 4. Chu Viet Cuong - Reviewer 2 5.
Dang Ngoc Chau - Member Approval of the Chairman of Master’s Thesis Committee and Dean of Faculty of Civil Engineering after the thesis being corrected (If any). CHAIRMAN OF THESIS COMMITTEE HEAD OF FACULTY OF CIVIL ENGINEERING Dr. Nguyen Anh Thu i VIETNAM NATIONAL UNIVERSITY - HO CHI MINH CITY SOCIALIST REPUBLIC OF VIETNAM HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY Independence – Freedom - Happiness THE TASK SHEET OF MASTER’S THESIS Full name: Do Duy Linh Student ID: 2170311 Date of birth: 21/10/1993 Place of birth: Khanh Hoa Major: Construction Management Major ID: 8580302 I. THESIS TITLE (In Vietnamese): Kết hợp mô hình thông tin xây dựng (BIM) và phương pháp lựa chọn theo ưu điểm (CBA) để lựa chọn các giải pháp thiết kế và thi công hướng đến xây dựng bền vững tại Việt Nam.
THESIS TITLE (In English): Combining Building Information Modeling (BIM) and Choosing By Advantages (CBA) method to select Design-Construction solutions toward sustainable construction in Vietnam. TASKS AND CONTENTS: Building a predictive model of energy consumption for buildings using Building Information Modeling (BIM), Building Energy Modeling (BEM) and Machine Learning; Determining the factors affecting the decision to choose the design and construction option towards sustainable construction and the importance level of those factors; Developing a method for choosing optimal design and construction options by Choosing By Advantages (CBA) method. THESIS START DAY: March 2023 V. THESIS COMPLETION DAY: 10th June 2023 VI.
Luong Duc Long Ho Chi Minh City, date ……… SUPERVISOR HEAD OF DEPARTMENT (Full name and signature) (Full name and signature) Assoc. Luong Duc Long DEAN OF FACULTY OF CIVIL ENGINEERING (Full name and signature) Note: Student must pin this task sheet as the first page of the Master’s Thesis booklet ii ACKNOWLEDGEMENTS In order to complete this thesis, first of all, I would like to express my sincerest thanks to Associate Professor, Dr. Luong Duc Long, who has enthusiastically guided, oriented and imparted valuable experiences to me during the process of making this thesis. Next, I would like to thank the teachers of the Department of Construction Management, Faculty of Civil Engineering for their dedication in teaching and imparting specialized knowledge during their study at the school.
I also would like to thank the group of experts, colleagues and friends who have given their comments, participated in surveys as well as shared valuable knowledge and experiences and supported me in the process. perform this research. Finally, I would like to thank my family and relatives for always supporting and encouraging me during my study and thesis completion. In the process of conducting research, errors cannot be avoided.
Therefore, I look forward to receiving your understanding and comments to improve. Sincerely, Ho Chi Minh City, 31st July 2023 DO DUY LINH iii ABSTRACT Energy efficiency buildings are becoming more and more important in order to address the current energy problem and advance in line with the sustainable trend of the construction industry. The potential for energy savings in buildings is relatively large when design-construction options are used to increase energy efficiency. This has many tangible advantages for the socio-economy, including increased energy efficiency, improved quality of life, and a favorable effect on the environment.
Finding a design- construction alternative for the building that is truly beneficial in terms of both technical and economic criteria, however, is proving to be very challenging. The goal of this thesis is to help solve this issue. To accomplish this task, Building Information Modeling (BIM) and software in this ecosystem are not only used for modeling (3D), time simulation (4D), quantity measurement (5D) but also for energy consumption simulation (6D). This thesis focuses on using BIM-based energy simulation software to simulate energy consumption for various types of building design and combining BIM 6D with the Choosing by Advantages (CBA) method, a multi-criteria decision-making method that has been widely applied in selecting design options, materials, and contractors related to sustainable construction.
In addition, besides using energy software to simulate and generate a data set of energy consumption for the building, this thesis introduces a method to predict energy consumption by using Learning Machine based on output datasets from the generating process. Keywords: Building Information Modeling (BIM), BIM 6D, Choosing by Advantages (CBA), sustainable construction, Machine Learning iv TÓM TẮT LUẬN VĂN THẠC SĨ Các tòa nhà sử dụng năng lượng hiệu quả ngày càng trở nên quan trọng hơn nhằm giải quyết vấn đề năng lượng hiện nay và tiến tới phù hợp với xu hướng phát triển bền vững của ngành xây dựng. Tiềm năng tiết kiệm năng lượng trong các tòa nhà là tương đối lớn khi các phương án thiết kế-xây dựng được sử dụng để tăng hiệu quả sử dụng năng lượng. Điều này mang lại nhiều lợi ích hữu hình cho nền kinh tế xã hội, bao gồm tăng hiệu quả sử dụng năng lượng, cải thiện chất lượng cuộc sống và tác động tích cực đến môi trường.
Tuy nhiên, việc tìm kiếm một phương án thiết kế-xây dựng cho tòa nhà thực sự có lợi về cả tiêu chí kỹ thuật và kinh tế đang tỏ ra rất khó khăn. Mục tiêu của luận án này là giúp giải quyết vấn đề này. Để thực hiện nhiệm vụ này, Mô hình thông tin xây dựng (BIM) và phần mềm trong hệ sinh thái này không chỉ được sử dụng để mô hình hóa (3D), mô phỏng thời gian (4D), đo lường khối lượng (5D) mà còn dùng để mô phỏng tiêu thụ năng lượng (6D). Luận văn này tập trung vào việc sử dụng phần mềm mô phỏng năng lượng trên nền BIM để mô phỏng mức tiêu thụ năng lượng cho các loại thiết kế công trình và kết hợp BIM 6D với phương pháp Lựa chọn theo Ưu điểm (CBA), một phương pháp ra quyết định đa tiêu chí đã được áp dụng rộng rãi trong việc lựa chọn thiết kế, vật liệu và nhà thầu liên quan đến xây dựng bền vững.
Ngoài ra, bên cạnh việc sử dụng phần mềm năng lượng để mô phỏng và tạo bộ dữ liệu tiêu thụ năng lượng cho tòa nhà, luận văn này giới thiệu phương pháp dự báo mức tiêu thụ năng lượng bằng cách sử dụng Learning Machine dựa trên bộ dữ liệu đầu ra từ quá trình mô phỏng năng lượng. Từ khóa: Building Information Modeling (BIM), BIM 6D, Choosing by Advantages (CBA), sustainable construction, Machine Learning v THE COMMITMENT OF THE THESIS’ AUTHOR The undersigned below: Student full name: DO DUY LINH Student ID: 2170311 Place and date of born: Khanh Hoa, Vietnam, 21st October 1993 Address: Di An City, Binh Duong With this declaration, the author finishes his master’s thesis entitled “COMBINING BUILDING INFORMATION MODELING (BIM) AND CHOOSING BY ADVANTAGES (CBA) METHOD TO SELECT DESIGN- CONSTRUCTION SOLUTIONS TOWARD SUSTAINABLE CONSTRUCTION IN VIETNAM” under the advisor's supervision. All works, ideas, and materials that was gain from other references have been cited correctly. Ho Chi Minh City, 31st July 2023 DO DUY LINH vi TABLE OF CONTENTS CHAPTER 1: GENERAL INTRODUCTION.
Objectives of the topic. Scope of study:. Scientific and practical significances. 2 CHAPTER 2: THEORETICAL BASIC AND RELATED RESEARCH.
Definitions and concepts. Energy-Efficient building. Building Information Modeling (BIM). Multiple-criteria decision-making (MCDM) methods:.
Choosing by Advantages (CBA) methods:. Artificial Intelligence and Machine Learning. Data Analysis Tools. Energy simulation software: DesignBuilder.
Random Forest Algorithm. The process of building a Random Forest model. The advantages of Random Forest Algorithm. Evaluate the accuracy of the RF model.
Building a model to predict energy consumption. Software used in the study. 30 CHAPTER 4: DETERMINING FACTORS - DATA COLLECTION AND ANALYSIS. Determining the factors.
Analyzing the characteristics of the study sample. Testing the reliability of the scale. One sample T-Test. Multi-sample testing.
39 CHAPTER 5: BUILDING A MODEL OF ENERGY CONSUMPTION. Simulation of building energy consumption using DesignBuilder. Procedure of building an energy simulation model. Defining design variables and input data to DesignBuilder.
Simulation of building energy consumption using Random Forest Algorithm by Python Programming Language. Procedure of creating an energy prediction model. Data and parameter for RF model. Checking results of prediction model.
Optimal design variables. Pareto frontier result from DesignBuilder. Pareto frontier result from Prediction model and comparison. 61 CHAPTER 6: DECISION ON DESIGN OPTIONS BY CBA METHOD.
CBA procedure and result. Defining criteria for each factor. Describing the attributes of each alternative. Deciding advantages of alternatives & Decide the importance of advantages 73 6.
Evaluating cost data. Finding the most optimal alternative by pareto frontier. Method of using aggregate values without units of measurement to rank alternatives. 81 CHAPTER 7: CONCLUSION AND SUGGESTION.
87 ix TABLE INDEX Table 2.1: Summary of some previous relative researches .1: Statistics on the amount of data collected .2: Meaning of Cronbach’s Alpha coefficient values .3: List of software used in the study .1: Factors affecting to decision of choosing design-construction options .2: Percentage of participants who have ever joined in Green Building projects or energy efficient buildings .3: Years of experience of the survey participants .4: Expertise of the survey participants .5: Roles of the survey participants .6: 1st results of reliability testing .7: 2nd results of reliability testing .8: Ranking factors through Mean values.9: Results of One-sample T-Test .10: Mean difference analysis for the experience of the respondents .11: Mean difference analysis for the expertise of the respondents .12: Mean difference analysis for the role of the respondents .1: Define design variables .2: Design variables data .3: Simulation results in DesignBuilder .4: Procedure of creating a prediction model for energy consumption .5: Comparison of electricity consumption results generated by Prediction model and DesignBuilder .6: Comparison of Discomfort hour results generated by Prediction model and DesignBuilder .7: Comparison of CO2 emission results generated by Prediction model and DesignBuilder .8: Pareto frontier result from DesignBuilder.9: Pareto frontier result from Prediction model .10: Duplicated pareto variable sets between simulation by DesignBuilder and Prediction model .2: Factors and their importance score .3: Factors and their criteria .4: Properties of materials .5: Points of materials .6: Attributes of alternatives .8: Material unit rates.9: Cost of Alternatives .11: Detail evaluation of Method of using aggregate values without units of measurement .83 xi FIGURE INDEX Figure 2.2: Working process with Machine Learning .2: Data collecting procedure .3: One-way ANOVA analyzing process .4: Process of building a Random Forest model .5: Procedure of building a model to predict energy consumption .1: Procedure of building an energy simulation model in DesignBuilder .2: Input weather data .3: Design variables setting in DesignBuilder.4: Objectives and Outputs setting .5: Example of a Pareto front .6: Pareto frontier result from DesignBuilder .7: Pareto frontier result from Prediction model .1: CBA Score comparison.2: CBA Score and Cost Comparison .