TEACHING VISUAL SCRIPTING IN BIM: A CASE STUDY USING A PANEL CONTROLLED BY SOLAR ANGLES

2018 ◽  
Vol 13 (1) ◽  
pp. 113-138 ◽  
Author(s):  
Karen M. Kensek
Keyword(s):  
Parametric Design ◽  
Visual Programming ◽  
Building Industry ◽  
Building Information Model ◽  
Form Generation ◽  
Building Information ◽  
Visual Scripting ◽  
Visual Programming Language ◽  
Metal Panels

Programming and scripting can be used to activate a 3D parametric model to create a more intelligent and flexible building information model. There has been a trend in the building industry towards the use of visual scripting that allow users to create customized, flexible, and powerful programs without having to first learn how to write traditional code. Using visual scripting, users graphically interact with program elements instead of typing lines of text-based code. Nodes are created and virtually wired together; they can be numbers, sliders for adjusting values, operators and functions, list manipulation tools, graphic creators, and other types. Text based coding programs such as Python can also be used for the creation of custom nodes when greater flexibility is desired. Examples from professional firms include scripts that help automate work in the office to increase efficiency and accuracy (e.g. create escape routes, renumber rooms by levels, create documentation), assist in form generation (e.g. parametric design of metal panels, rebar generation, coordination between Revit and Rhino), analyze BIM files (e.g. terminal airflow, visual loads and capacity), and provide analysis results (e.g. daylighting, thermal comfort, window optimization). One can learn the basic steps of learning a visual programming language through the use of Dynamo within Autodesk Revit. The example used is for a façade component that changes based on the sun's altitude.

scholarly journals Utilization of Building Information Modeling for Arranging the Structural Kingposts

Buildings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 323
Author(s):  
Vachara Peansupap ◽  
Pisal Nov ◽  
Tanit Tongthong
Keyword(s):  
Underground Structure ◽  
Visual Programming ◽  
Information Modeling ◽  
Construction Technology ◽  
Underground Structures ◽  
Building Information Modelling ◽  
Engineering Knowledge ◽  
Building Information ◽  
Rule Based Approach

The kingpost was a vertical element that was used to support the structural strut in the deep excavation. The structural kingpost was commonly arranged by experienced engineers who used two-dimensional construction drawings. Thus, it was still time-consuming and error-prone. Currently, an available construction program has been developed to arrange the structural kingpost by identifying the clash problems in the 3D environment. However, they have a limitation for detecting the clash that was unable to visualize the concurrent clashes between kingpost and many underground structures. Then, the engineer cannot see all the clash incidents with each kingpost and move the kingpost to avoid the clashes successfully. Since the kingpost arrangement was still an inefficient practice that was limited in the visualization aspect, this research used engineering knowledge and advanced construction technology to detect and solve the clashes between kingposts and underground structures. The methodology used engineering knowledge of kingpost arrangement to develop the system modules by using a rule-based approach. Then, these modules were developed into the system by using visual programming of Building Information Modelling (BIM). To test the system, an underground structure from building construction was selected as a case study to apply the developed system. Finally, the finding of this study could overcome human judgment by providing less interaction in the kingpost arrangement and visualization improvement of clash occurrences in the 3D model.

scholarly journals Life Cycle Environmental Assessment of Light Steel Framed Buildings with Cement-Based Walls and Floors

2020 ◽  
Vol 12 (24) ◽  
pp. 10686
Author(s):  
Mona Abouhamad ◽  
Metwally Abu-Hamd
Keyword(s):  
Life Cycle ◽  
Building Materials ◽  
Simulation Software ◽  
Life Cycle Assessment Methodology ◽  
Building Information Model ◽  
Building Information ◽  
Cold Formed Steel ◽  
Environmental Measures ◽  
Materials Used

The objective of this paper is to apply the life cycle assessment methodology to assess the environmental impacts of light steel framed buildings fabricated from cold formed steel (CFS) sections. The assessment covers all phases over the life span of the building from material production, construction, use, and the end of building life, in addition to loads and benefits from reuse/recycling after building disposal. The life cycle inventory and environmental impact indicators are estimated using the Athena Impact Estimator for Buildings. The input data related to the building materials used are extracted from a building information model of the building while the operating energy in the use phase is calculated using an energy simulation software. The Athena Impact Estimator calculates the following mid-point environmental measures: global warming potential (GWP), acidification potential, human health potential, ozone depletion potential, smog potential, eutrophication potential, primary and non-renewable energy (PE) consumption, and fossil fuel consumption. The LCA assessment was applied to a case study of a university building. Results of the case study related to GWP and PE were as follows. The building foundations were responsible for 29% of the embodied GWP and 20% of the embodied PE, while the CFS skeleton was responsible for 30% of the embodied GWP and 49% of the embodied PE. The production stage was responsible for 90% of the embodied GWP and embodied PE. When benefits associated with recycling/reuse were included in the analysis according to Module D of EN 15978, the embodied GWP was reduced by 15.4% while the embodied PE was reduced by 6.22%. Compared with conventional construction systems, the CFS framing systems had much lower embodied GWP and PE.

Research on the Green Urban Morphology Based on BIM - A Case Study on the Urban Design in Nanhe City

2013 ◽  
Vol 368-370 ◽  
pp. 78-82
Author(s):  
Ping Shu ◽  
Jun Xu ◽  
Li Jun Wang
Keyword(s):  
Urban Design ◽  
Design Process ◽  
Design Patterns ◽  
Urban Morphology ◽  
Theoretical Studies ◽  
Design Practice ◽  
Building Information Model ◽  
Building Information ◽  
Spatial Morphology

Based on theoretical studies of the urban spatial morphology, this paper introduces advanced concepts and methods of BIM (Building Information Model) into the urban design in Nanhe City ,and then respectively makes innovations of the urban design practice supported by BIM technology in the process of design, optimization and implementation of the program, attempting to explore BIM-based design patterns of the urban spatial morphology to make the traditional urban design process more rational and scientific, to expect to reach the green and sustainable urban spatial morphology.

A Method for Evaluating the Daylighting of Premises Using BIM

2021 ◽  
pp. 56-60
Author(s):  
Alexander P. Konstantinov
Keyword(s):  
Calculation Method ◽  
Thermal Protection ◽  
Solid Angle ◽  
Outer Wall ◽  
Information Model ◽  
Visual Programming ◽  
Design Solution ◽  
Building Information Model ◽  
Construction Design ◽  
Building Information

The paper presents a method for assessing the daylighting of premises, which can be used directly at the stage of architectural and construction design of buildings in building information model (BIM) software complexes. The calculation method is based on the calculation of the sky factor by constructing a solid angle formed by the calculated point and the light opening of the outer wall. These operations are proposed to be performed automatically using visual programming programs that work together with the BIM complexes. Since the considered calculation method is based on the idea of the physical meaning of the daylight factor, it can be used to evaluate the daylighting according to almost any regulatory method. At the same time, all the data necessary for the calculation can be obtained directly from the building information model. The method is universal and can be used both for the calculation of side and top daylighting, considering the surrounding development. The proposed method can also be used as a tool for finding the best design solution for translucent structures of the designed building based on the requirements of thermal protection, daylighting, and safety.

scholarly journals Implementing BIM for conventional tunnels - a proposed methodology and case study

2021 ◽  
Vol 26 ◽  
pp. 643-656
Author(s):  
Amichai Mitelman ◽  
Ury Gurevich
Keyword(s):  
Application Programming Interface ◽  
Quantitative Information ◽  
Building Industry ◽  
Structural Domain ◽  
Building Information Modelling ◽  
Essential Information ◽  
Building Information ◽  
Application Programming ◽  
Guidelines And Standards

The topic of Building Information Modelling (BIM) adoption by public organizations has become a central subject of research, and a significant amount of BIM documents, guidelines, and standards have been created to meet different organizational purposes. Compared to the building industry, the application of BIM tools for tunnel project management is lagging far behind. This paper proposes a methodology for integrating BIM tools for conventional tunnelling. A fundamental distinction is made between the tunnel internal architectural domain and the external structural domain. For the former, BIM methodology can be applied similarly to the building industry. For the latter, it is suggested that a BIM model be built according to the essential information generated during tunnelling excavation. The proposed methodology was put to test for an actual tunneling project. A routine was established where the supervisor on behalf of the owner was responsible for gathering and reporting essential data in tabular form. Via REVIT's Application Programming Interface (API), a code was developed so that a BIM model was built and updated automatic to data insertion. Ultimately, the final BIM model allows managing up-to-date qualitative and quantitative information visually. Thus, human understanding and interpretation are enhanced for future uses, such as maintenance, future renovations and project post-analysis.

Representation, Design, and Management of Generative Algorithms for Architecture

2018 ◽  
pp. 243-262
Author(s):  
Massimiliano Lo Turco ◽  
Yoseph Bausola Pagliero
Keyword(s):  
Programming Language ◽  
Case History ◽  
Parametric Design ◽  
Visual Programming ◽  
Free Form ◽  
Indoor Environments ◽  
Kinematic Modelling ◽  
Generative Algorithms ◽  
Parametric Algorithms ◽  
Visual Programming Language

This chapter critically analyses free-form generative parametric design techniques to evaluate the effectiveness of VPL (Visual Programming Language) systems, applied to existing high-geometric/formal complexity artefacts. The paneling of the South facade of the Institut du Monde Arabe (IMA) in Paris, designed by J. Nouvel, was chosen as a case history. This is to examine how through a complex kinematic modelling, the sunshine of indoor environments can be effectively controlled. The chapter focuses on reproduction, through reverse engineering techniques of the façade-type panel, through the most widely-used VPL platforms that determine algorithmic relationships. The generative parametric algorithms developed for the IMA Moucharabieh, indicate that identical rules can govern different geometries; in contrast, identical geometries can arise from completely different algorithmic formulae. Finally, the integration with the most widely-used BIM applications, is used to critically evaluate interoperable workflows.

scholarly journals BIM-Based Visualization Research in the Construction Industry: A Network Analysis

2019 ◽  
Vol 16 (18) ◽  
pp. 3473 ◽  
Author(s):  
Zezhou Wu ◽  
Changhong Chen ◽  
Yuzhu Cai ◽  
Chen Lu ◽  
Hao Wang ◽  
...  
Keyword(s):  
Building Information Modeling ◽  
Visual Programming ◽  
Information Modeling ◽  
Scientometric Analysis ◽  
Research Status ◽  
Holistic Understanding ◽  
Building Information ◽  
The Status ◽  
Research Findings ◽  
Visual Programming Language

Visualization is one of the main features of Building Information Modeling (BIM). It has many advantages throughout the lifecycle of a construction project, and it has become a timely research topic in recent years. However, no attempt has been made to give a holistic understanding of the existing BIM-based visualization research status. Thus, this study aims to conduct a scientometric analysis of the existing BIM-based visualization literature and to gain a snapshot of the research status during the period 2010–2019. A total of 255 articles were abstracted from the Scopus database. Then, the VOSviewer program was employed to visualize the research status from the perspectives of scholars, countries/regions, journals, articles, and co-occurring keywords. Results revealed that Wang X. published the greatest number of articles, while Cheng J.C.P. received the greatest average normalized citations. Furthermore, Automation in Construction was identified as the most influential journal and the article “Building information modeling (BIM): trends, benefits, risks, and challenges for the AEC industry” was the most cited paper. Through the keywords co-occurrence analysis, “virtual reality” and “visual programming language” were identified as the emerging themes in this field. The research findings can provide both researchers and practitioners with a better understanding of the status quo and trends of the BIM-based visualization research.

Preservice Teachers’ Design of Technology–Based Reading Texts to Improve Their TPACK

2020 ◽  
pp. 002205742096676
Author(s):  
Meral Gozukucuk ◽  
Nilgun Gunbas
Keyword(s):  
Preservice Teachers ◽  
Visual Programming ◽  
School Students ◽  
Pedagogical Content ◽  
Study Approach ◽  
Whole Process ◽  
Teachers Beliefs ◽  
Visual Programming Language ◽  
Reading Activities

The purpose of this study is to contribute to preservice teachers’ technological pedagogical content knowledge (TPACK). For this purpose, preservice teachers ( n = 8) learned visual programming language, designed technology-based reading activities, and observed students completing these activities. A case study approach was employed, and preservice teachers’ views about the process were taken. Results showed that the preservice teachers’ beliefs in technology integration in education positively changed. They believe they learned teaching reading skills to elementary school students in an untraditional approach. They believe the whole process contributed to their personal and professional development. Implications are made based on the TPACK framework.

scholarly journals Detailed Assessment of Embodied Carbon of HVAC Systems for a New Office Building Based on BIM

2020 ◽  
Vol 12 (8) ◽  
pp. 3372 ◽  
Author(s):  
Christina Kiamili ◽  
Alexander Hollberg ◽  
Guillaume Habert
Keyword(s):  
Environmental Impact ◽  
Hvac Systems ◽  
Visual Programming ◽  
Office Building ◽  
Building Sector ◽  
Carbon Reduction ◽  
Embodied Carbon ◽  
Building Information ◽  
Detailed Assessment ◽  
Visual Programming Language

The global shift towards embodied carbon reduction in the building sector has indicated the need for a detailed analysis of environmental impacts across the whole lifecycle of buildings. The environmental impact of heating, ventilation, and air conditioning (HVAC) systems has rarely been studied in detail. Most of the published studies are based on assumptions and rule of thumb techniques. In this study, the requirements and methods to perform a detailed life cycle assessment (LCA) for HVAC systems based on building information modelling (BIM) are assessed and framed for the first time. The approach of linking external product data information to objects using visual programming language (VPL) is tested, and its benefits over the existing workflows are presented. The detailed BIM model of a newly built office building in Switzerland is used as a case study. In addition, detailed project documentation is used to ensure the plausibility of the calculated impact. The LCA results show that the embodied impact of the HVAC systems is three times higher than the targets provided by the Swiss Energy Efficiency Path (SIA 2040). Furthermore, it is shown that the embodied impact of HVAC systems lies in the range of 15–36% of the total embodied impact of office buildings. Nevertheless, further research and similar case studies are needed to provide a robust picture of the embodied environmental impact of HVAC systems. The results could contribute to setting stricter targets in line with the vision of decarbonization of the building sector.

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