Abstract: In order to study the mechanical properties of rubber materials used for seismic isolation devices in construction projects under high temperatures, this paper conducted mechanical tests on the tensile, shear, and compressive properties of rubber materials at room and high temperatures, and obtained the damage law of mechanical properties of rubber materials at high temperatures. By fitting experimental data, the high-temperature constitutive relationship and related parameter calculation formulas of rubber materials were obtained, providing a basis for the real basic mechanical performance parameters under high temperature for numerical simulation analysis of isolation devices in the future.

Key words: seismic isolation devices for construction projects, vulcanized rubber, mechanical property test, constitutive model