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Toward the Integration of Spatial and Temporal Information for Building Construction

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Record and Request spatiotemporal information from the drawing. Cross analysis of spatiotemporal information (quantity, cost, space, and time) ... – PowerPoint PPT presentation

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Title: Toward the Integration of Spatial and Temporal Information for Building Construction


1
Toward the Integration of Spatial and Temporal
Information for Building Construction
  • Shen-guan Shih and Wei-lung Huang
  • National Taiwan University of Science and
    Technology

2
Content
  • Spatial and temporal information
  • Spatiotemporal integration
  • A prototype
  • Conclusion

3
Spatial and Temporal Information
Spatial
Temporal
Plan
Schedule
Elevation
Construction plan
Section
Specification
Cost
Designers
Engineers
4
Spatial and Temporal Information
  • Spatial information
  • Position
  • Dimension
  • Component
  • Spatial relation/topology
  • Temporal information
  • Time
  • Duration
  • Activity
  • Sequence and dependency

5
Data model
  • State, event and activity

Activity
In-activity state
Pre-activity state
Post-activity state




Starting Event
Ending Event




Duration
Process

6
Levels of integration
  • Recording and presentation of changes of objects
    over time
  • Cross analysis of spatial and temporal
    information in construction process
  • Automatic analysis of spatial relationships
    between construction activities
  • Graphical Simulation of the dynamic process of
    construction

7
LEVEL 1
The recording and presentation of sequential
changes of objects over time
8
LEVEL 2
  • Cross analysis of spatial and temporal
    information in construction process

9
LEVEL 3
  • Automatic analysis of spatial relationships
    between construction activities

10
LEVEL 4
  • To simulate the execution of the construction
    plan upon possible situations
  • Causal relationships between activities and state
    changes
  • Means of estimating how well an activity can be
    performed under a given condition

11
A Prototype
12
Linking forms and activities
Temporal information
Spatial information
JUNE
10 11 1 2 13 14 15
Rebar
Formwork
Concrete
13
Linking drawing with schedule
14
Database
15
Functions of the system
  • Record and Request spatiotemporal information
    from the drawing
  • Cross analysis of spatiotemporal information
    (quantity, cost, space, and time)
  • Graphical presentation of construction status
    with the building model

16
Spatiotemporal analysis
17
Graphical display of construction status
18
Conclusion
  • Opinions from experts
  • the system is powerful, yet not practical in
    realistic projects
  • too much work to prepare data for building model
    and construction process
  • requires tedious work to make links between
    building elements and relating activities

19
Redirection of the research
  • Toward decision-making support in the early phase
    of a project
  • Provide higher levels of abstraction in the
    design model and construction schedule
  • Need automatic process to link building elements
    and construction activities

20
A revised framework
21
Toward the Integration of Spatial and Temporal
Information for Building Construction
  • Shen-guan Shih and Wei-lung Huang
  • National Taiwan University of Science and
    Technology
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