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, material tests were carried out to investigate the mechanical properties of the rigid urethane foam used in the structure of pavilions. The test results were as follows, 1) The Young's modulus and strength in tensile tests were higher than those in compression tests. 2) Stiffness and strength in bending tests agree with estimates based on tensile test results.