Exploring the Potential of Free-Form Surfaces for Air Particulate Removal - A Case Study of Atrium Space

Abstract

Air particulate pollution has become a major issue for environmental health in various countries As a shelter for people a building plays the role of protection and security The inhibition ability of the building to the particles is directly related to the harm degree of the particles to human body However the design method of preventing particles from entering the building violates the basic mode of building lighting and ventilation This study looks for the regularity of airflow in speed and direction guided by curved surfaces and try to achieve the result of physical separation Then an appropriate opening design is used to analyze the design method for slowing the entry of particles into the space This study takes the building atrium as the design object and proposes a design strategy for the atrium ceiling in response to the air pollution problem The purpose is to separate the air flow which containing the source of traffic pollution from the human use space And use the curved surface to change the cross-sectional area of the wind tunnel When the wind speed drops there is an opportunity to precipitate particles and achieve passive physical slowdown effect So the core goal of this study is to generate the best atrium curved ceiling design for particulate matter Using the curved surface as a physical separation method can make the building a good combination of spatial form and function but curved surface construction has always been a more difficult construction issue Therefore this study introduces the weaving structure as a design method for curved surface construction Weaving structure is a new freeform construction system It can respond to various surface design conditions and propose systematic optimization meshes mechanical simulation and structural generation It has the advantages of light weight structure convenient construction energy saving and environmental protection

Date of Award	2020
Original language	English
Supervisor	Yaw-Shyan Tsay (Supervisor)