Concrete sample high-temperature tensile experiment device and fire simulation system thereof

Abstract

The invention relates to a concrete sample high-temperature tensile experiment device and a fire simulation system thereof. The fire simulation system comprises a supporting mechanism and a fire simulation furnace arranged on the supporting mechanism; the fire simulation furnace is formed by connecting two isometric half-square-column-shaped shells through a hinge structure and a lock; a hearth for containing a concrete tensile sample is formed inside a hollow portion obtained after the fire simulation furnace is formed by the half-square-column-shaped shells, a heat production mechanism is arranged on the half-square-column-shaped shells, a joint is formed in the connecting face of the half-square-column-shaped shells, and the middle of the joint is expanded to form a deformation measuring joint for a deformationsensor clamp; the concrete sample high-temperature tensile experiment device comprises the fire simulation system. The fire simulation system is exquisite in design, due to the hinge structure, a sample testing section can still be placed into the hearth when the opening of the hearth is smaller than a sample loaded section, the heating efficiency of the sample testing section is improved, the fire simulation cost is lowered, and the adverse effect caused by a fire on a sample clamp and the surroundings is simulated.

Description

technical field [0001] The invention relates to a fire simulation system in the field of concrete mechanical performance testing and a high-temperature tensile test device for concrete specimens using the fire simulation system. Background technique [0002] With the economic and social development and the acceleration of the urbanization process, the rapid development of high-rise buildings, the problem of fire has become increasingly prominent, and has caused heavy economic losses and casualties. In high-rise buildings, reinforced concrete structures account for more than 90%. As the main structural material, concrete will undergo a series of changes in its mechanical properties during and after high-temperature fires, such as a decrease in strength and elastic modulus, and an increase in deformation. As the load-bearing and supporting system of buildings, structures must maintain sufficient bearing capacity for a certain period of time in order to enable the safe evacuati...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a fire simulation system to solve the technical problem of the lack of a suitable fire simulation system in the high-temperature tension test device for concrete specimens in the prior art; the purpose of the present invention is also to provide a fire simulation system for concrete Specimen high temperature tension test device

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