scholarly journals A Case Study for 3D Modeling Process Analysis based on BIM Log File

2019 ◽  
pp. 309-313
Author(s):  
Nan Zhang ◽  
Yichen Tian ◽  
Mohamed Al-Hussein
Keyword(s):  
3D Modeling ◽  
3D Model ◽  
Process Analysis ◽  
Information Modeling ◽  
Log Files ◽  
Modeling Process ◽  
Building Information ◽  
Design Activities ◽  
Log File ◽  
Construction Efficiency

Building Information Modeling (BIM) design becomes popular with the growing needs of enhancing construction efficiency. During the design process, 3D Modeling is the foundation of generating and analyzing building information. The modeling tool, Autodesk Revit, automatically creates log files, which can record all design activities. This paper investigates and analyzes the operation data from unstructured temporal Revit log files. These data were recorded when executing the general and external command to build a 3D model of a typical residential two-story building. The objectives of this analysis were to figure out the influence elements of producing a good framing model and to give some suggestions for improving modeling efficiency. In order to extract the useful specific commands, the information in the text journal file was transferred to an excel file, before reading by a data mining tool, RapidMiner. It generated a pie chart to show the repetition amount of modeling activities. Analyzing the reasons of repeating some commands frequently, this paper contributes the possibility to reduce the useless repetition for building a good 3D model.

scholarly journals 3D SURVEYING, MODELING AND GEO-INFORMATION SYSTEM OF THE NEW CAMPUS OF ITB-INDONESIA

2016 ◽  
Vol XLII-2/W2 ◽  
pp. 97-105
Author(s):  
D. Suwardhi ◽  
S. W. Trisyanti ◽  
N. Ainiyah ◽  
M. N. Fajri ◽  
H. Hanan ◽  
...  
Keyword(s):  
Information System ◽  
3D Modeling ◽  
3D Model ◽  
Academic Staff ◽  
Point Clouds ◽  
Facility Management ◽  
Information Modeling ◽  
Building Information ◽  
Campus Activities ◽  
The University

The new campus of ITB-Indonesia, which is located at Jatinangor, requires good facilities and infrastructures to supporting all of campus activities. Those can not be separated from procurement and maintenance activities. Technology for procurement and maintenance of facilities and infrastructures –based computer (information system)– has been known as Building Information Modeling (BIM). Nowadays, that technology is more affordable with some of free software that easy to use and tailored to user needs. BIM has some disadvantages and it requires other technologies to complete it, namely Geographic Information System (GIS). BIM and GIS require surveying data to visualized landscape and buildings on Jatinangor ITB campus. This paper presents the on-going of an internal service program conducted by the researcher, academic staff and students for the university. The program including 3D surveying to support the data requirements for 3D modeling of buildings in CityGML and Industry Foundation Classes (IFC) data model. The entire 3D surveying will produce point clouds that can be used to make 3D model. The 3D modeling is divided into low and high levels of detail modeling. The low levels model is stored in 3D CityGML database, and the high levels model including interiors is stored in BIM Server. 3D model can be used to visualized the building and site of Jatinangor ITB campus. For facility management of campus, an geo-information system is developed that can be used for planning, constructing, and maintaining Jatinangor ITB’s facilities and infrastructures. The system uses openMAINT, an open source solution for the Property & Facility Management.

scholarly journals 3D Modelling, Design and Safety Management in High Rise Building u sing Bim

2021 ◽  
Vol 11 (1) ◽  
pp. 41-50
Author(s):  
Mohammed Waheed ◽  
◽  
Mahmad Naheed ◽  
Parvez Patel ◽  
Syed Mubashir Hussain ◽  
...  
Keyword(s):  
Design Process ◽  
3D Modeling ◽  
Structural Design ◽  
Safety Management ◽  
Information Modeling ◽  
Analysis And Design ◽  
High Rise ◽  
High Rise Building ◽  
Traditional Design ◽  
Building Information

In this works 3D modeling, design and safety management of high rise building using building information modeling (BIM) technology is carried out.. Initially a AutoCAD plan with all its salient features is developed following byelaws of high rise building. Then the 3D modeling and rendering of high rise building is done in the Revit architecture of the 2D plan which is imported from the AutoCAD. The analysis and design of high rise building is carried out using ETabs software. Apart from the structural design Mechanical, Electrical and Plumbing (MEP) services design is carried out using BIM technology . The layout of fire safety system is specified efficiently with use of BIM in co-ordination with MEP services. The application of BIM based design process resulted in considerable time reduction in compression with traditional design process and the holistic design of the high rise building is carried out with the compatibility of different softwares.

scholarly journals HBIM for Conservation: A New Proposal for Information Modeling

2019 ◽  
Vol 11 (15) ◽  
pp. 1751 ◽  
Author(s):  
Nazarena Bruno ◽  
Riccardo Roncella
Keyword(s):  
Time Management ◽  
3D Model ◽  
Information Modeling ◽  
Web Interface ◽  
User Friendliness ◽  
Geometric Information ◽  
Historical Building ◽  
Semantic Data ◽  
Desktop Application ◽  
Building Information

Thanks to its capability of archiving and organizing all the information about a building, HBIM (Historical Building Information Modeling) is considered a promising resource for planned conservation of historical assets. However, its usage remains limited and scarcely adopted by the subjects in charge of conservation, mainly because of its rather complex 3D modeling requirements and a lack of shared regulatory references and guidelines as far as semantic data are concerned. In this study, we developed an HBIM methodology to support documentation, management, and planned conservation of historic buildings, with particular focus on non-geometric information: organized and coordinated storage and management of historical data, easy analysis and query, time management, flexibility, user-friendliness, and information sharing. The system is based on a standalone specific-designed database linked to the 3D model of the asset, built with BIM software, and it is highly adaptable to different assets. The database is accessible both with a developed desktop application, which acts as a plug-in for the BIM software, and through a web interface, implemented to ensure data sharing and easy usability by skilled and unskilled users. The paper describes in detail the implemented system, passing by semantic breaking down of the building, database design, as well as system architecture and capabilities. Two case studies, the Cathedral of Parma and Ducal Palace of Mantua (Italy), are then presented to show the results of the system’s application.

scholarly journals Behavior and Performance of BIM Users in a Collaborative Work Environment

2020 ◽  
Vol 10 (6) ◽  
pp. 2199
Author(s):  
Eric Forcael ◽  
Alejandro Martínez-Rocamora ◽  
Javier Sepúlveda-Morales ◽  
Rodrigo García-Alvarado ◽  
Alberto Nope-Bernal ◽  
...  
Keyword(s):  
Average Rate ◽  
Collaborative Work ◽  
Training Needs ◽  
Information Modeling ◽  
Further Training ◽  
Log Files ◽  
Collaborative Environment ◽  
Building Information ◽  
And Performance ◽  
E Mail

Collaborative work in Building Information Modeling (BIM) projects is frequently understood as the interaction of modelers in an asynchronous way through modification requests or via e-mail/telephone. However, alternative work methodologies based on creating a common and synchronous environment allow solving issues instantaneously during the design process. This study aimed to analyze the behavior and performance of BIM users with different specialties who were subjected to an experimental exercise in a collaborative environment. For this purpose, a process was devised to collect, sort, and select the data from the log files generated by the BIM software. A timeline of the experiment was populated with data on the intensity and types of commands used by each specialist, which allowed determining behavioral patterns, preferred commands, indicators of their experience, further training needs, and possible strategies for improving the team’s performance. In the experiment, the mechanical designer’s performance was 49% and the rest approximately 64%, with respect to that of the architect. An average rate of 1.66 necessary or auxiliary commands for each contributory command was detected. The average performance was 200–400 commands per hour, which intensified by the end of the experiment. Further training needs were detected for the plumbing designer to reduce the use of backwards commands. Conversely, the electrical designer showed a positive evolution regarding this aspect during the experiment. The analysis methods here described become useful for the aforementioned purposes. Nevertheless, combinations with methods from existing research might improve the outcomes and therefore the specificity of recommendations.

scholarly journals Deep Belief Network Based 3D Models Classification in Building Information Modeling

2015 ◽  
Vol 11 (5) ◽  
pp. 57
Author(s):  
Li Wang ◽  
Zhi-kai Zhao ◽  
Na Xu
Keyword(s):  
3D Model ◽  
Building Information Modeling ◽  
3D Models ◽  
Deep Belief Network ◽  
Information Modeling ◽  
Layer By Layer ◽  
Restricted Boltzmann Machines ◽  
Belief Network ◽  
Model Library ◽  
Building Information

3D models classification is a critical process of Building Information Modeling (BIM). A Deep Learning Approach is proposed to classify 3D models in BIM environment. The ray based feature extraction algorithm is used to extract features of 3D models and form features matrix. The Deep Belief Network constructed by Restricted Boltzmann Machines applies the features matrix and classifies the models adopting the effective training process. The process of training DBN is layer by layer. Experiments were taken on the public 3D model library of PSB model database. The results show that compared with several commonly used classification method, the proposed method of this paper has achieved good results in the 3D model classification for efficiently BIM.

scholarly journals Design skills assessment in teaching 3D modeling

2019 ◽  
Vol 66 ◽  
pp. 01013
Author(s):  
Vladimir Lokalov ◽  
Igor Klimov
Keyword(s):  
3D Modeling ◽  
Statistical Significance ◽  
Three Dimensional ◽  
Assessment Method ◽  
Skills Assessment ◽  
Three Dimensional Modeling ◽  
Modeling Process ◽  
Special Software ◽  
Design Activities ◽  
Design Skills

The article discusses the design skills assessment method, which was developed and used to teach basics of three-dimensional modeling. This method is necessary because the creation of a virtual 3D model usually does not include the design phase as a separate phase with own specifications and design documentation and all design activities are performed in mind without any preliminary sketches. The offered method allows assessing the quality of the student's mental design operations based on the analysis of the 3D modeling process tracking. The student's activity in the 3D modeling environment was captured using special software. The obtained data allow to identify the essential parameters of the students' actions (correctness, optimality, etc.), which were used to quantify their design skills. The construct validity of the proposed method and its statistical significance of the assessment were confirmed.

scholarly journals Assessment of the Capabilities of Commercial Tools to Develop 4D/5D Models

2019 ◽  
Vol 2018 (1) ◽  
Author(s):  
M. Yeşilyurt ◽  
E. Ergen
Keyword(s):  
Software Package ◽  
3D Model ◽  
Information Modeling ◽  
Test Case ◽  
Construction Sector ◽  
Advantages And Disadvantages ◽  
Software Packages ◽  
Simulation Based ◽  
Building Information ◽  
Modeling Software

Building Information Modeling (BIM), which is developed for improving the collaboration and interoperability in the construction sector has many dimensions. While “3D model” is developed to visualize the buildings, simulation-based “4D model” integrates 3D model with time and “5D model” is attained as a result of including cost in the 4D model. The purpose of this study is to define 5D modeling in detail and to assess the capacities of 4D/5D modeling software packages via comparison. To assess the capacities of 4D/5D modeling software packages, a test case was developed. A 3D model of a project was created in Autodesk Revit 2017 and 4D/5D models of the building were developed by using Autodesk Navisworks Manage 2017, Synchro Pro 2016.2 and Trimble Vico Office R6.0 software packages. In the test case, the stages and their durations when preparing 4D/5D models were identified and the advantages and disadvantages of each software package were determined. The results of the study could be used as a guide by the companies desiring to conduct 4D/5D application in the sector.

scholarly journals ADVANCED 3D MODELING VERSUS BUILDING INFORMATION MODELING: THE CASE STUDY OF PALAZZO ETTOREO IN SACILE (ITALY)

2019 ◽  
Vol XLII-2/W11 ◽  
pp. 1137-1143 ◽  
Author(s):  
D. Visintini ◽  
E. Marcon ◽  
G. Pantò ◽  
E. P. Canevese ◽  
T. De Gottardo ◽  
...  
Keyword(s):  
3D Modeling ◽  
Laser Scanning ◽  
Building Information Modeling ◽  
Information Modeling ◽  
Morphological Evaluation ◽  
Laser Scanners ◽  
Building Information ◽  
Alternative Approaches ◽  
Definition Of

<p><strong>Abstract.</strong> This paper presents an experience of 3D modeling starting from laser scanning data and following two alternative approaches: the first one, called “Advanced 3D modeling”, based on an original meshing algorithm, while the second make use of Revit BIM software.</p><p>The case study in Palace Ettoreo in Sacile (Pordenone, Italy), constructed in Renaissance Venetian style in the 16th century: it has a trapezoid plan and is developed on three floors, with the ground one endowing a portico on two façades.</p><p>The palace has been surveyed by two terrestrial laser scanners: a Riegl Z420i for 5 external scans and a FARO Photon 120 for 53 internal scans; also a topographic surveying of 270 targets have been carried out. The final TLS cloud has 1,4 billions of points.</p><p>The Advanced 3D modeling has produced a “smart” mesh, allowing also to model the elements with deformations (out of plumb, bulges and troughs). Moreover, this model drastically reduce the stored data: the whole palace is modeled by 111.496 polygons only.</p><p>The modeling with Revit follows the classical flowchart where the principal architectonical elements are gradually composed: this HBIM process has required a strong manual work in exploiting the available parametric objects and/or in the definition of new objects.</p><p>Comparing the two models with respect the points cloud, both have evidenced advantages and limitations: therefore, the best solution is a process involving their combination. At the beginning, the Advanced 3D modeling is performed onto the points cloud, so well exploiting the segmentation tools and the smart meshing of the surfaces preserving any geometrical irregularity. Such obtained model allows metrical and morphological evaluation on the various structural and architectonical elements. Afterwards, this very light model becomes the entry data for the modeling in BIM environment, where also the shape of irregular elements are so imported.</p>

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