This project is the result of the subject "Advanced Construction", whose main statement was to choose a project of modern technology not built, and propose a construction and structural solution. The Project chosen was Helix City, designed by architect Kisho Kurokawa in 1961. This is a project of the Metabolist movement, thinked to provide answers to the problem of urban density, population growth and increased traffic flows using two tools: the forms of nature and computing.

 

Geometry is an important point in the project, and has been parameterized using Grasshopper to have greater freedom in the design process. The proposed solution is based on a module of 128 meters high and 90 meters in diameter, height groupable. The tower structure consists of a core of concrete coated pipes of steel, and four helices that have one wider tapered oval section in the intersection points, thus reinforcing the knots. These linear structures are armed inside to prevent deformation. Boxes containing habitable spaces are supported by the helices, passing through the core. The structure of these boxes consists of two main trusses supported by steel rings foundry located in the main structure, and serve to build the forged with beams and composite slab, lightening the final weight of the building.

 

As a single envelope for each tower case there is a homeostatic facade that dynamically adjusts its balance and has mechanisms for self-regulation. It is a system that works similar to the pupil of the human eye, increasing in size by itself automatically when we have great solar incidence to protect the building and contracting alone on a cloudy day to allow the entry of light. In addition, homeostatic facades not require human action or implement a complicated and expensive automatized system to operate.

 

As a result of this construction system is achieved a tower capable of adapting to different places and situations, making possible the construction of cities as Kisho Kurokawa proposed long ago.