Abstract: The thermal expansion properties of tension components are distinctly different． The temperature response of tension dome was analyzed based on variable layout and thermal expansion properties of tension components using Geiger type tension dome． It was shown that the ultimate temperature action of tension dome is changed with a change of prestress level but the temperature-sensibility of the tension components was almost invariant． In temperature-rise process，the thermal expansion properties of bottom tension components had great effect on temperature-sensibility of tension dome． The rigid tension components on outer ring had maximum temperature-sensibility in constant temperature field．