Journal Entry For
Module 7 - Study Your Options
Link to Student
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Step 1 - Generative Design Framework
- Structural Design - Column/Beam Framing Spacing
- Design Variables
- Column Spacing (could potentially vary in X/Y directions, this also determines girder locations)
- Beam/Bay Spacing for floors
- Available beam span lengths
- Irregular Column spacing pattern
- Beam/Column sizes
- Beam/Column material
- Area Load/Purpose of structural frame
- Framing material (steel, reinforced concrete, mass timber)
- Evaluators
- Number of columns used
- Number + Length of beams used
- Beam deflections
- Required Footing sizes to carry load
- Structure Weight
- Architect satisfaction/workability
- Construction complexity
- Carbon footprint of material used
- Most Important Tradeoffs to Consider
- Longer bays = longer beam lengths, which will increase beam and slab deflections, lowering structural performance
- Fewer columns = better architecturally for more open floor plans, but affects amount of load per footing, increasing costs/material
- Material such as mass timber = lower carbon footprint material but may need more volume/cost of material to achieve similar structural performance as steel/reinforced concrete
- Construction complexity based on number of joints of the columns, girders, and beams, where less columns and longer bays can decrease the construction costs
- Architectural Design - Facade
- Design Variables
- Ratio of window area to wall area
- Glass material type/opacity
- Evaluators
- Amount of heat entering window
- Glare from glass material
- Material cost
- Views for occupants
- Most Important Tradeoffs to Consider
- Higher ratio of Window to Wall area will provide more views, but increases amount of heat gain
- Glass material type with more efficient glazing will increase material costs
- Sustainability - Natural Ventilation
- Design Variables
- Area of Window that can be opened
- Floor plan area with window access
- Location of window ventilation in room
- Evaluators
- Less energy usage for AC/Heater
- Air quality
- Outdoor noise
- Air exchange rate, how much actually enters the building
- Most Important Tradeoffs to Consider
- More ventilation from window area lowers energy use but increases noise intrusion
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Step 2 - Generative Design Study
I decided to work with the Structural Framing design decision since I have more background in this area. The goal is to create an ideal framing model that will minimize material cost while maximizing open floor plan area and structural performance. The model will be of a 1-story frame, where the constant will be its footprint area and structure height. The 4 design variables will be column spacing, beam spacing, area loading values, and steel section weight. The 4 Evaluators will be beam deflections, structural weight, largest area between adjacent columns (to analyze how open the space is), and construction complexity based on number of member joints.
- Use the Generative Design Framework structure to explain how you’ve set up your Generative Design Study to keep it consistent.
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Step 3 - Generative Design Study Results
- The screenshot of the Scatterplot or Parallel Coordinates Graph illustrating the tradeoff that you chose to model and study.
- Provide a brief explanation of what’s being shown in the Scatterplot or Parallel Coordinates Graph and how the tradeoff being illustrated would impact the design decision. What would you do with this info?
- An image of your Dynamo Study Graph (showing all your nodes and the connecting logic) -- You can use the File > Export Workspace As Image... command in Dynamo to save a PNG image to upload with your posting.