Concrete bearing device and testing method thereof

Abstract

The invention relates to the field of engineering material testing, and particularly relates to a concrete bearing device and a testing method thereof. The device comprises an upper bearing plate, a lower bearing plate and screws evenly distributed at edges of the upper bearing plate and the lower bearing plate; each of the screws sequentially penetrates through the upper bearing plate and the lower bearing plate and can move relative to each other; the device is characterized in that: the lower bearing plate is further provided with a bottom at the lower end, the screw sequentially penetratesthrough the upper bearing plate, the lower bearing plate and the bottom plate, the lower end of the screw rod is fixed to the bottom plate, an elastic device is arranged between the lower bearing plate and the bottom plate; a plurality of concrete test pieces are vertically stacked between the upper bearing plate and the lower bearing plate, and the top of the uppermost concrete test pieces is attached to the bottom of the lower bearing plate, and a concrete pressing block is arranged at the upper end of the upper bearing plate; the concrete test piece is detected by extruding the concrete pressing block in a vertical direction through an external force. The device is simple in structure, easy to operate, convenient to assemble and disassemble.

Description

technical field [0001] The invention relates to the field of engineering material testing, in particular to a concrete load-holding device and a testing method thereof. Background technique [0002] The durability of concrete plays an extremely important role in the use of the entire construction project. Many buildings lose their practical value due to insufficient durability, thus losing a lot of material and financial resources. Therefore, improving the durability of concrete has extremely high significance for the service life of construction projects, and reduces the cost of later maintenance, thereby reducing the cost of the project on the other hand. [0003] Environmental factors and loads such as freeze-thaw and corrosion are important factors affecting the durability of concrete. At present, most of the studies on the durability of concrete are based on single-factor research, while the coupling effect of load and environmental factors is closer to the actual proje...

AI Technical Summary

Problems solved by technology

Most of the load-bearing devices with jacks as the main body are relatively complex in design, and there are certain difficulties in the assembly process; the value of the load applied to the load-bearing devices that determine the load through the movement of air bubbles cannot be too large, otherwise the normal operation of the force-transmitting object cannot be guaranteed; through direct Although the structural design of the load-holding device for tightening the bolts to apply the load is simple and convenient, it is extremely difficult to tighten the bolts. On the other hand, it is difficult to ensure uniform load application in this tightening method

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