Filling Tests and Form-Finding to Minimize the Internal Pressure of Tubular Membranes

Study on Construction of Pavilions by Foaming Rigid Urethane Foam inside Tubular Membrane Pneumatic Structure (part 2)

Abstract

This research aims to gain knowledge on the construction of pavilions by foaming rigid urethane foam inside the tubular membrane pneumatic structure. In this paper, filling tests were carried out to investigate the effect of internal pressure on the filling efficiency. The test results shown that filling efficiency decreases as pressure increases. The form-finding were carried out to investigate the minimum internal pressure to ensure stability for the tubular membrane pneumatic structures. The analyses result shown that the structural stability are ensured at internal pressure of 10 - 15 kPa.