Teaching simulation test method of pure bending beam

Abstract

The invention provides a teaching simulation test method of a pure bending beam. The teaching simulation test method comprises the following steps of: simulating the transverse direction of a beam body by a combined rigid sheet and simulating the vertical direction of the beam body by a central sheet shaft; and carrying out loading test simulation of the pure bending beam at the outer side of a support through a stress application bent handle. The method utilizes a corresponding teaching model and is used for a teaching simulation test of the pure bending beam; and the teaching simulation test method has the advantages of simple structure, light weight, convenience in transportation, capability of being randomly demonstrated in fields of classrooms, laboratories and the like, high intuition, high working efficiency, no need of energy consumption, no generation of waste materials, zero pollution, zero energy consumption and low operation cost.

Description

technical field [0001] The invention relates to a teaching simulation test method for pure bending beams. Background technique [0002] The pure bending beam test in the prior art is based on the analysis results of the solid beam body test, and the bearing capacity of the normal section of the bending member with suitable reinforcement is calculated using basic assumptions. Before and at the moment when the stress of the longitudinal tensile reinforcement reaches the yield strength, the average strain of the section basically conforms to the assumption of a plane section. After the pure bending deformation of the beam, its cross section remains flat and rotates an angle around a certain horizontal axis like a rigid sheet. Afterwards, it is still perpendicular to the axis of the beam after bending; the assumption of unidirectional force: the beam is composed of many longitudinal fibers, and there is no transverse extrusion between the fibers during pure bending deformation, ...

AI Technical Summary

Problems solved by technology

This experiment also has the above-mentioned defects. Many colleges and universities are limited by the shortage of funds and cannot take into account all students.

It has the disadvantages of long test period, high cost, high energy consumption, difficult to dispose of the damaged beam after the test, and the heavy beam itself, which is difficult to transport.

[0003] After searching for Chinese published patents, no solution identical to this patent application was found

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