Statically indeterminate structure temperature stress experiment device

Abstract

The invention belongs to the scientific teaching experimental apparatus and specially relates to a structural mechanics course experiment device, characterized by an experiment device for the statically indeterminate structure that may cause temperature stress when in temperature variation. A statically indeterminate structure temperature stress experiment device is composed of three parts as follows: the statically indeterminate structure, a heating and temperature testing system, and a strain data acquisition and display part. The statically indeterminate structure is composed of a foundation and a structural body. The experiment device is capable of thoroughly reflecting the temperature stress characteristic of the statically indeterminate structure by combining the traditional visualization feature with the quantification feature of a modern testing technology. The experiment device can be widely applied to experiment and demonstration equipment of higher engineering course schools and is also capable of providing basis for the temperature stress value simulation of the statically indeterminate structure.

Description

Technical field: [0001] The invention belongs to scientific teaching experiment instruments and equipment, in particular to an experiment device for structural mechanics courses, in particular to an experiment device for temperature stress of a statically indeterminate structure. [0002] Background technique [0003] The statically indeterminate structure refers to the structure in which the support reaction force and internal force cannot be fully determined by the static equilibrium condition alone under the action of load and other factors. Due to the good integrity of the statically indeterminate structure, which has greater strength, stiffness and stability, it has been widely used in engineering. For example, the main structure in civil engineering, water conservancy, aviation, shipbuilding and other engineering and the supporting structure in mechanical engineering are usually complex statically indeterminate structures. The statically indeterminate structure can s...

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Problems solved by technology

However, compared with the statically indeterminate structure, the statically indeterminate structure will cause the internal force of the structure when the temperature changes, and the internal force cannot be reduced by increasing the cross-sectional size of the structure.

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