Wednesday, April 9, 2014

Building Information Modeling BIM

BIM process supports the ability to coordinate, update, and share design data with team members throughout the design, construction, and management phases of a building's life


When a change is made anywhere in the model, all of the views update automatically
If you add an element in plan view, it displays in the related section and schedule views

Workflow

BIM has changed the process of how a building is designed


Plans, Elevations, Sections are simply 2D versions of the 3D Model
Changes made in one view automatically update in all views
Even Construction Documents update automatically with callout tags in sync with the sheet numbers

Start-up


Easier way to access to projects and families
Including recently open and template

Interface

Quick Access Toolbar

Access to commonly used commands, such as Open, Save, Undo, Redo, Dimension, 3D view

Application Menu


Access to file commands, settings and documents

Ribbon


Contains tools in a series of tabs and panels
The panel contain a variety of commands


When start a command, or select an element
Ribbon displays Modify|contextual tab

Options bar


Displays options that are related to the selected command or element

Properties palette


Make extensive modifications to views and elements
Parameters that can be set for individual element

Type Properties
Properties palette - Edit Type - Type Properties


Parameters that are common to all of the elements in a specific family
If you modify these parameters, all elements of the same type change 

Project Browser


List the views that can be opened in the software

View Control bar


Control aspects of that view, such as Scale, Detail Level, Hide/ Isolaate Elements

Status bar


Provides information about current process


Terminology


Host
Build-in-place construction elements
They can standalone in the project
Such as Floors, Walls, Roofs, Ceilings, Stair, Ramps

Components
Elements that need to ne attached to host elements
Such as Doors, Windows, Railings
As well as stand alone items - Furniture , Equipment

Views
Display and manipulate the project
Such as Fkoor Plan, Ceiling Plan, Elevation, Section, Schedule, 3D view

Datum
Elements that define the project context
Such as Level, Grid, Reference Plane

Annotation
2D elements that are placed in views
Such as Dimension, Text, Tag, Symbol

Setting Up Levels

Levels define stories and other vertical heights (like roof or parapet)
Levels can create on either elevation or section view
Elements create on levels are constrain, if level moves, element will follow

Project Browser - Elevations (Building Elevation) - North
The project has 2 existing levels: Level 1 and Level 2
Zoom-in to the level name



Click on the level name and rename it to 1st Floor
Rename the corresponding views - Click Yes
Rename Level 2 to 2nd Floor, change the level height to 5450mm

Architecture tab > Datum panel > Level
Draw panel > Pick Lines
Options bar - Offset: 3650

Move the cursor to 2nd Floor
Make sure the offset dotted line is above the level
Continue creating level until total of 10 levels

Options bar - Clear the Make Plan View option, Height: 1220
Ceate 1 additional level above the highest level
This level does not need a plan view
Click Modify to end the command



Rename the top level to Parapet, the level below to Roof
Continue to rename the other level to 3rd Floor, 4 Floor .... 8th Floor

Add another 2 level below 1st Floor



Rename them to Basement and T.O. Footing
Change the level height to -3000 and -3600

Import CAD File

Many renovation projects start with existing drawings
Instead of redrawing from scratch, import or link the CAD file

Activate 1st Floor Plan
Insert tab > Import panel > Import CAD
Navigate to the folder/ Hotel-Lobby-Floor-Plan-M.dwg

Set the following options:
Check Current view only
Color: Black and White
Layers: All
Import Units: Auto Detect
Positioning: Auto-Origin to Origin
Click Open
The imported CAD file is placed in the project on 1st Floor Plan only

Select the imported CAD file - Right-click - Override Graphic in View > By Element ...
View-Specific Element Graphics dialog box - Halftone
Click OK



The imported file displays in halftone

Activate 2nd Floor
Import CAD file Hotel-Typical-Guest-Floor-Plan-M.dwg 
Same options as 1st floor
Override the graphics and set the imported file to halftone

Create Structure Grids

Grids can be placed anytime in the design process
Grids are the basis for architectural and structural column locations
Archtectural column can be view as placeholder or decorative element
Structural column include more precise information related to industry standard

Architecture tab > Datum panel > Grid
Draw panel > Pick Lines
Select the left side 1st vertical line, change the grid number to A
Continue select all the other vertical lines one by one

Select the top horizontal line, change the letter to 1
Continue select all other horizontal lines one by one



Click Modify to end the command


Add Columns

Architectural Columns can be viewed as placeholder or decorative elements
Structural Columns include more precise information related to industry standard

Architecture tab > Build panel > Column - Structural Column
Type Selector - M_Concrete-Square-Column: 300x300mm
Options bar - Height: 2nd Floor
Multiple panel > At Grids
Cross-select all grid lines, then click Finish
Click Modify to end the command


Delete columns at A1, A2, A4, B1, B4

Structural columns remain separate even material same with walls
Delete a grid or wall does not delete the column
Columns move with nearby grids by default

Change to 3D view



Select any column, right-click - Select All Instances - Visible in View
Properties palettes:
Base Level: T.O. Footing
Top Level: Roof

Tuesday, April 8, 2014

Create Exterior Shell

Walls are full 3D elements in Revit that show height, thickness, materials among other things

Different wall types for different needs:


  • Exterior walls with Block and Brick
  • Corridor walls with block (higher fire rating)
  • Interior walls for partition

To show the hatching of the wall



Set the Detail Level to Medium or Fine


Add Walls by Pick Line

Activate 1st Floor
Architecture tab > Build panel > Wall
Type Selector - Exterior - Brick and CMU on Mtl Stud
Options bar - Height: Parapet, Location Line: Finish Face: Exterior
Properties palettes - Top and bottom offset: 0.0

Draw panel > Pick Lines
Hover one of the exterior walls
Make sure the dashed line display inside the wall, then click to select
Continue select all exterior walls, except the curved curtain walls
If there is a door, don't add 2 walls
Click Modify to end the command
Press spacebar to flip the wall when necessary



Select the wall, use Drag Wall End control to lengthen the wall


Add Curtain Walls

Architecture tab > Build [anel > Wall
Type Selector - Curtain Wall: Exterior Glazing
Options bar - Height: Roof
Properties palettes - Top Offset: -1850

Draw panel > Pick Lines
Tab-select all the curved lines
Click Modify to end the command
Change to 3D view
View Control bar - Visual Style: Consistent Color


Add Parapet

Activate Floor Plan: Roof
Select the small curved wall at the north-east corner


Right-click - Disallow Join
Repeat the same steps on the other join with curtain wall

Architecture tab > Build panel > Wall
Type Selector - Exterior - Brick on Mtl Stud - Parapet


Warning appear
Revit remember the last settings
Click Reset constraints

Properties palette:
Location Line: Wall Centerline
Base Constraint: Roof
Base Offset: -1850
Top Constraint: Up to Level: Parapet
Top Offset: 0.0

Draw panel > Pick Lines
Pick all the curtain walls


Change to 3D view
Parapet walls add on top of the curtain walls