Kinetic Facade Library

ARCH 4101 Design Studio, 1st Semester · Academic

by Clark Cheng


Rhino 3ds Max Illustrator Photoshop InDesign Grasshopper

This project proposes a public library enclosed by a continuous, mounded shell whose surface is covered in hundreds of individually actuated facade fragments. Each fragment pivots on a rack-and-pinion mechanism, opening and closing in response to solar exposure — shading the reading spaces beneath the shell during peak sun while opening to admit daylight and ventilation as conditions change. The result is a building envelope that behaves less like a static wall and more like a responsive skin, tied directly to an energy simulation of the site's solar path.


Kinetic Facade Mechanism

Each facade fragment is driven by a simple rack-and-pinion assembly: a motor-driven pinion gear rides along a toothed rack fixed to the fragment's frame, rotating the outer panel open or closed. Multiplied across the shell's curved surface, this single mechanism produces the building's overall kinetic pattern.

Kinetic facade fragment mechanism, exploded axonometric

Animation of the facade fragments actuating across the building's shell:



Facade fragment structure rendering Facade fragment structure rendering, alternate pass Facade fragment structure, ambient occlusion

Massing & Program

The building's mounded form grew out of a sectional analysis of the library's program — stacking reading rooms, stacks, and gathering spaces beneath a single undulating datum that rises and falls with the roof shell above.

Sectional program analysis diagram

Floor Plan

Floor plans

Site Plan & Sections

Site plan rendering Site plan, ambient occlusion Site plan, 1:64 Site plan tree study Longitudinal section, 1:32 Section through site tree

Final Renderings

The completed design: a concrete shell library whose kinetic shading fragments crest across the roofline like scales, set within a wooded urban site.

Final rendering 1, exterior

Final rendering 1, edited
Final rendering 2 Final rendering 3 Final rendering 4 Final rendering 5 Final rendering 6

Final Presentation

The final pin-up boards, and the assembled presentation deck:

Pin-up board, page 1

Pin-up board, page 2