Multifunctional experimental device for prestressed concrete resistance

Abstract

The invention discloses a multifunctional experimental device for prestressed concrete resistance and relates to the technical field of prestressed concrete. The multifunctional experimental device comprises a compression testing machine and a base, wherein a plurality of universal wheels and a plurality of supporting mechanisms are fixed on one surface of the base; a protective shell is arrangedon the compression testing machine; the compression testing machine comprises an electric control box and a U-shaped frame; a lead screw lifting mechanism is arranged on one side face of the U-shapedframe; an oil cylinder mechanism is arranged on the other side of the U-shaped frame. The multifunctional experimental device disclosed by the invention is moved by using a handle and the universal wheels; the vibration generated by spring buffer is utilized and electric telescopic rods are used to drive corresponding supporting plates to downward move to support the base, and further the aim of stabilizing is achieved; a storage battery is used for supplying power to the compression testing machine and the electric telescopic rods; meanwhile, oil is changed and replenished by using oil pipesinside oil storage tanks and an oil pipe putting tank; the problems that an existing prestressed concrete resistance experiment device is inconvenient to move and the stability of the experimental device with the universal wheels cannot be ensured are solved.

Description

technical field [0001] The invention belongs to the technical field of prestressed concrete, in particular to a multifunctional prestressed concrete resistance test device. Background technique [0002] Prestressed concrete, in order to make up for the phenomenon of premature cracks in concrete, before the component is used, pre-stress the concrete in advance, that is, in the tension area of ​​the concrete, the steel bar is stretched by artificial force, and the steel bar is used The retraction force makes the concrete tensile area pre-stressed. This stored pre-stress, when the component bears the tensile force generated by the external load, first offsets the pre-stress in the concrete in the tensile area, and then increases with the load. The concrete is stretched, which limits the elongation of the concrete, delays or prevents cracks from appearing, which is called prestressed concrete. [0003] Existing prestressed concrete pressure testing machines are placed in a spec...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a multi-functional prestressed concrete resistance test device, by using the handle and universal wheels to move the test device, using the spring to buffer the vibration generated during the movement, and using the electric telescopic rod to drive the support plate to move downward to move the base To support the purpose of stability, the battery is used to supply power to the pressure testing machine and the electric telescopic rod, and at the same time, the oil storage tank and the oil pipe inside the oil pipe placement box are used to change the oil and replenish oil, which solves the problem of the existing prestressed concrete resistance test device. The problem that stability cannot be guaranteed during the experiment with the experimental device that is easy to move and has universal wheels

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