05. Autodesk Revit & Parametric Modeling

Transcription

1 Design + Computing 05. Autodesk Revit & Parametric Modeling 4/2/2015 Digital Design I HOM3034 Spring 2015 Every Thursday 2:00 p.m. 5:50 pm Jin Kook Lee, Ph.D designit@hanyang.ac.kr Assistant Professor, Space & Design IT Lab. Department of Interior Architecture Design, Hanyang University

2 What to do today: 1 Revit file of CHE Bldg. & several screenshot jpg files Lecture: 1) Review, 2) BIM & Parametric Modeling Demos Lab Exercises: A CHE Building Modeling using Revit 1. Lab Exercise 1: Wall Object Exterior and Interior wall in Revit and its property screen shot 2. Lab Exercise 2: Door & Window Object Door/Window in Revit and its property screen shot 3. Lab Exercise 3: Stair Object and others Components in Revit screen shot 4. Lab Exercise 4: Space Object Room in Revit and its property screen shot 5. Lab Exercise 5: Floor Object Floor in Revit and its property myname_le5_l5.rvt 6. Lab Exercise 6: Section view screen shot 7. Lab Exercise 7: Building Elevation How to create an entire building floors in elevation view screen shot 8. Lab Exercise 8: Editing each floor (Elaborated) myname_le7_che_bldg.rvt Preview: Various BIM Applications 9. Lab Exercise 9: Schedule Room schedule in Revit screen shot 10. Lab Exercise 10: Exporting Revit model Geometry models & IFC FBX file and IFC file from your CHE bldg. Floor Plan CAD file from floor plan views, 3D CAD file from 3D views, etc.

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4 Review: BIM & Design Visualization Still designers people need 3d visualization

5 Modeled and Rendered in Revit, using Mental Ray (Also compatible with 3ds MAX)

6 Modeled and Rendered in Revit, using Mental Ray (Also compatible with 3ds MAX)

7 Recommended: Use Revit & MAX for better photo-realistic rendering images Revit: MAX:

8 Rendered by Mental Ray on Revit Photo-realistic rendering

9 Rendered by Mental Ray on Revit Photo-realistic rendering

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12 Review: Autodesk HomeStyler.com - A web-based parametric modeling tool (& Mobile-based) - Login using Google Account, and design your room

13 Autodesk HomeStyler

14 Autodesk HomeStyler

15 CAD vs. BIM - Export your design in.dwg, and.rvt in HomeStyler.com - Comparison between.dwg file and.rvt

16 File Save As: JPG, DWG, RVT HomeStyler Model is not a simple CAD but a simple BIM This is a Door object Not a rectangle geometry

17 AutoCAD DWG file Object: Polylines block Properties: Color, Layer, Linetype, Position X, Y, Z Revit RVT file Object: Double-Panel Door Properties: Sill height, Frame Type, Material, Finish, Head height

18 Traditional Communication in AEC-FM industry Programming: Bubble Diagram ABSTRACT 추상화 ( 抽象化 ) Sketch Your Design & idea Drafting by hand (1893) Architectural Symbols: Floor Plan, etc.

19 Let computers do this abstract, visualization, symbolization, etc. AutoCAD - This is a geometric line object - Only geometric properties - Computer does NOT know this is a Door - Only drawing & visualization - Any CAD tools can draw this wall, using Rhino, 3ds Max, SketchUP, even by this PowerPoint

20 Let computers do what we have done for new buildings Revit (BIM) - This is a door object - Door related properties - Computer does KNOW this is a Door - drawing & visualization are one of uses of this model - Only BIM authoring tools can draw this door. Not by general CAD tools for Jewelry, Textile, Machine, etc.

21 Conventional Design Computing Drafting Modeling Rendering Focusing on geometric shapes Let computers do what we have drawn Animation Visualizations

22 New direction of Design Computing: Information Modeling Focusing on information Let computers do what we have done

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24 Review: Solid Modeling in Revit

25 Basic 3d geometric modeling supported by Revit

26 Basic 3d geometric modeling supported by Revit

27 Basic 3d geometric modeling supported by Revit

28 Review: Parametric Modeling

29 Parametric & Feature-based Modeling Features are defined to be parametric shapes associated with attributes such as intrinsic geometric parameters (length, width, depth etc.), position and orientation, geometric tolerances, material properties, and references to other features. Features also provide access to related production processes and resource models. Thus, features have a semantically higher level than primitive closed regular sets. Features are generally expected to form a basis for linking CAD with downstream manufacturing applications, and also for organizing databases for design data reuse.

30 Parametric Modeling Parametric modeling uses parameters to define a model (dimensions, for example). Examples of parameters are: dimensions used to create model features, material density, formulas to describe swept features, imported data (that describe a reference surface, for example). The parameter may be modified later, and the model will update to reflect the modification. Typically, there is a relationship between parts, assemblies, and drawings. A part consists of multiple features, and an assembly consists of multiple parts. Drawings can be made from either parts or assemblies. Related to parameters, but slightly different are Constraints. Constraints are relationships between entities that make up a particular shape. For a window, the sides might be defined as being parallel, and of the same length. Parametric modeling is obvious and intuitive. But for the first three decades of CAD this was not the case. Modification meant re-draw, or add a new cut or protrusion on top of old ones. Dimensions on engineering drawings were created, instead of shown. Parametric modeling is very powerful, but requires more skill in model creation. Parametric modeling also lends itself to data re-use. Refer to Wikipedia

31 History of computer-aided design is a history of understanding what is design The design is a drawing of the product e.g. Geometric drafting in 2D The design is a surface model of the product e.g. Geometric surface modeling in 3D This class The design is a 3D model of the product e.g. Solid modeling The design is an editable 3D model of the product e.g. Parametric modeling The design is the integrated representation of all the compositional, analytical and fabrication representations of the product (Geometry is just one part of the model) e.g. Product Data Modeling, Building Information Modeling H W D Parameters: H, W, D + Information Information Modeling

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33 Non-uniform Design of Buildings

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35 Free-form 3d shapes Parametric Modeling (Parametric Design) Feature-based modeling (Section profile + Path = Sweeping, Blend sweep )

36 Non-uniform Design, Parametric Design, and BIM Inevitable trend in recent AEC-FM industry

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38 Case Study: Gansam Architects and Partners 신사동페이토빌딩, 해군안보전시관, 프라자호텔리모델링

39 Pheyto Building BIM-enabled various curtain panel designs Angled curtain wall mullions: parametric modeling required Constructible design, even in early phase of design

40 Republic of Korea Navy Design Competition model

41 Republic of Korea Navy: Design Process Maya (obj/iges file) Rhino (sat file) Revit Mass surface panel design by Revit: - Parametric modeling - Pre-fabricated exterior panels

42 Remodeling project: Plaza Hotel Before Under the construction After

43 Remodeling project: Plaza Hotel Remodeling Project + BIM Non-uniform exterior panel design using Parametric modeling process Each panel s geometry controlled by parametrics

44 Remodeling project: Plaza Hotel

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46 A (Free) Parametric Design Tool: Autodesk Vasari

47 Autodesk Vasari, free software as of 2014 (Search Google Autodesk Vasari Project and download)

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49 Vasari User Interface (almost same to Revit) Ribbon Interface Dynamic Interface Contextual interface which is based on helping meet the user needs

50 Mere example

51 Mass modeling

52 Parametric Design using Autodesk Vasari - Curtain Panel Modeling

53 Parametric Curtain Wall Panel (Family) Building Mass - Diverse Surface Patterns - Editable Parameters (Width, Height..)

54 Parametric Curtain Wall Panel (Family) Building Surface - Editable Surface Geometry - Editable Curtain Panel Parameters

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58 Curtain Wall Panel System

59 Curtain Wall Systems Seoul City Hall, 2012 Non-uniform surface Panelized curtain wall system

60 Design models vs. As built pictures (Seoul City Hall)

61 Dali Museum

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63 Curtain Wall Panel Design Example by 3ds Max Architectural Organic, Non-uniform, Freeform For updating design, always edit geometry: Vertex, Edge, Polygons, etc. 3ds Max does NOT know what are they no parametric system. Just complex surfaces.

64 Geometric VS. Parametric modeling Geometric Modeling e.g. 3ds Max Design Design Geometry-centered, some parametrics For editing: update vertex, edge, polygon Vertex (Point) Edge (Line) Face (Surface) Shell (Space) Parametric Modeling e.g. Revit Topology (Geometry) Part (Component, Family, Object) Design (could be a part of bigger design) Object-oriented modeling & design For editing: update information

65 What s different? Pros & Cons? Geometric Curtain Panel modeled by 3ds Max (& other geometry modeling tools): - Just a set of dummy geometry - Pros: - Free to edit each geometric sub-component: Point, Line, Polygons - Good to visualize (rendering in Max etc.) - Cons: - Just a design model. Not reusable parts. Not BIM supportive Parametric Curtain Panel modeled by Autodesk Vasari (& othe BIM/Parametric tools): - Parametrically editable by building element: edit Width and Height, etc. - Pros: - Freely applicable to any building surfaces - Reusable parts to other design models, engineering and construction models - Building Information Modeling supportive - Cons: - Comparatively hard to edit geometric shape - Not good to visualize ( export geometry to 3ds Max and render)

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67 Parametric Modeling Demo in Bentley Architecture Curtain Wall example 2

68 Example. Kawneer 2800 TRUSSWALL

69 Component-oriented approach for 2800 TRUSSWALL Sub components for other components / reference line 1. Basic Section 4. Main Assembly 5. Final component 2. Basic components 3. Sub components Various applications

70 Constraints of basic mullion assembly 3. Array of Web following Mullion Height & their distance 1. Height of Vertical Mullion Component Assembly 2. Same Height constraint for rear mullion

71 Constraints of curved arc angle / distance 1. Angle of Mullion to path 1. In case of A_1 = 360 degree 2. Angle of Path line & point A_1 = 350 = A_2 = A_3 3. Mullion s Horizontal Distance ML_1 = 4 00 = ML_2 = ML_3 4. Array distance of Mullions As same as ML_1 2. In case of ML_1 = 3 Array distances were changed simultaneously

72 Constraints for Horizontal mullion & Edge cutting 1. Height & Relation of Intermediate Horizontal e.g: HM_Height = (Main.height / 4) M.offset 2. Paralleled cut of horizontal mullion by bended angle w.g: bend.angle = (360-curved.angle)/2

73 Horizontal Mullion B d a b C c Curtain wall path A Length: a = b = c = d Angle: Center point of arc A = B C = B/2 = A/2

74 d B a b C A Length: a = b = d Angle: Center point of arc A = B C = B /2 = A /2

75 d a B C b A Length: a = b = d Angle: Center point of arc A = B C = B /2 = A /2

76 Constraints for angled cut A2 A1 L1 B d a b C HM_A1 A2 = 540-A1 A1 = 270+(360-HM_A1)/2 A

77 Constraints for angled cut

78 Curved 2800 TRUSSWALL component could be defined another component using its variables e.g. curtainwall system using different angle, distance and different anchor point Constraints in PC Studio - Length - Angle - Semi diameter of circle - Coincidence on a point or path line - Sweeping along path - Array along path - drop first or last array - distance of array

79 Ready to use in BA s User defined object dialog box

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81 BIM & Design Applications We do design using Revit. What s next?

82 Space Program Review 조지아텍에서연구, 개발한 BIM 기반설계품질리뷰및검증도구 GT-GSA Modules - General spatial validation - Compare to the program - Area by Floor, Occupants, etc - ANSI/BOMA based area calc - Reusable Excel reporting Circulation & Security Rule Checking - Checking over 180 rules - Evaluates thousands of paths - Reporting problematic paths - Reporting valid paths - PDF reporting with images 법원청사건물 IFC 모델 Preliminary Energy Analysis - Creating energy zones - Creating windows / shadings - Analysis by rotated-direction - Export to Energy Plus - Reporting several results 다른설계품질검토항목에확대적용가능 Preliminary Cost Estimation - PACES-based Cost DB - GSA CH specific cost data - Location-based cost data, etc

83 Advanced spatial validation Space Program Review Using CAD: Typical area calculation (Net Area) Using BIM: - Net Area - ANSI/BOMA area - Usable area - Rentable area - Circulation factor -

84 Circulation checking All circulation between Space A and B: zero or many cases. A circulation path has: - Metric distance - Spatial depth - Number of turn - Horizontal/vertical circulation - Area of circulation spaces, number of windows, area of windows, height

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86 Lab Exercises

87 Next Class Track 2: Theories in 3d graphics & tool Design Visualization: - Renderers: Vray & Mental Ray Track 4: 3d Graphics Lab SketchUP & 3dsMAX