Thursday, April 27, 2017

ARCH 655, Final Project

This is a follow up on the first project of modeling Tadao Ando's Opers House using Grasshopper.
The model has been developed by adding curtain walls on four sides and then using the Ladybug plugin, the solar radiation analysis has been studied in order to find the optimum shading device.



First the curves on both sides of the opening were selected and joined.








However, since it made a deflection when selected all together, I had to retrieve the points on each curve and join them on the top, middle and bottom part separately.



Next they were lofted to make the surface that covers the openings on sides.




By using Quad Panels component from Lunchbox plugin, a grid is made over the surface that we just made. 


 

After that, as can be seen in image below the mullions are created by selecting edges, making curves, and using the sweep component.


The transparency is added to the surface using the following components.




The grids are made on all four sides using the same method.


Next step is to perform a solar radiation analysis in order to figure the amount of solar exposure on each floor and then design the shading devices accordingly.


First, the EPW file is imported from the EPW map website: http://www.mostapha.io/epwmap/

reference: http://www.mostapha.io/epwmap/

reference: http://www.mostapha.io/epwmap/

Second, using Ladybug's Radiation Analysis component and with the Brep set to the first and 2nd floor, the radiation on these two floors is measured.



As can be seen in the above image, the amount of radiation on the 2nd floor is more than first floor, so that shading devices should be designed in a way to achieve the optimum radiation on each level.

Finally, using Sunpath component from Ladybug, the temperature and global horizontal radiation would be studied and shading devices would be generated accordingly.

As shown in the image below, with the use of epw file, and Sunpath component, two diagrams for heat and global horizontal radiation are made. The diagrams show the time and dates in which temperature is over 28 C and radiation is over 644 wh/m2.


Then, with the use of Ladybug, Shading Designer component, shading devices are made according to the sun vector and building's orientation to get the optimum sunlight from the windows on the sides.


you can find the video here : 














Tuesday, March 28, 2017

ARCH 655

Project 1


In this project the objective was to create a landmark using Grasshopper and Rhino.

My selected project is Toyo Ito's Taichung Metropolitan Opera House :




Reference:      http://www.curbed.com/2016/9/30/13126548/toyo-ito-taichung-metropolitan-opera-house-taiwan


Reference:      http://www.curbed.com/2016/9/30/13126548/toyo-ito-taichung-metropolitan-opera-house-taiwan

Reference:      http://www.curbed.com/2016/9/30/13126548/toyo-ito-taichung-metropolitan-opera-house-taiwan


I started by making one of the modules that make up the building.


In order to do so, I drew a rectangle as a base plane using the grasshopper node : Rectangle


Next, the rectangle's vertices and its center should be found to be used as centers of the polygons. (Polygons are to be subtracted from the base plane) 

Using the Explode and Area nodes, we can obtain vertices and midpoint respectively.






In the above image you can see the rectangle plane and polygons made by the Polygon node.


After that, by the use of Surface Split node, we can subtract the polygons from the base plane.



Then, by the use of Brep node, we can find the curves resulted from the intersection of the two aforementioned forms.


The curves should be joined, then each one of them needs to be called out, moved in the z direction and scaled to make the loft.

After joining the curves, by the use of List Item and Number Slider node, we are able to select the targeted curve among the others, the same procedure should be done for the points and relative point can then e found to work as a center when scaling the curve.








The same process is repeated for other curves and other lofts are made:



One important thing to mention is that all Move nodes should be connected to the same set of nodes which is a Multiplication of unit Z. The reason for that is to be able to move all the parts in Z direction accordingly.



For the second floor, we can create the base surface by moving the rectangle 1 unit in Z direction and subtracting the curves from it by the use of surface split.




On the second surface though, we need to find the midpoint of each strait line between two curves which will be used as a center for making the new curves.

The midpoints can be selected by the use of Point on Curve node, set to 0.5. We can use the rectangle in the first floor to find the points and then move them to the 2nd floor. By using Polygon node, and the points as centers we can get the model below.


The polygons are subtracted from the surface using the same process that was mentioned above.



The curves are moved, scaled and lofted in the same way.




The 3rd floor can be made by simply moving the 2nd floor in Z direction, or subtracting the curves from the rectangle plane as shown in the image below.



The 4th floor is made by basically using the same nodes as the ones used for the first floor.


If all Move nodes are related to each other, then by changing the slider number, the whole model can flex together.





The Model's Creation Process Video by Me:
https://youtu.be/JW-z6PiG0DE