Experiment model for continuous beam

Abstract

The invention relates to an experiment model for a continuous beam. The experiment model comprises the continuous beam, continuous beam supporting seats and loading supports. The continuous beam is installed on the continuous beam supporting seats through fastening pieces along the length direction at intervals of certain distance to form a continuous beam on many supports, and the continuous beam supporting seats are fixed on the loading supports. Foil gauges are adhered to positions among supports of the continuous beam and continuous beam supporting seat positions, and load loading points are arranged among the supports of the continuous beam. The experiment model achieves transition from theory to practice, can reflect stress and deformation of the continuous beam under different loading conditions among different supports visually and objectively, enables students to understand and master design theory and a design method better on the basis of an experiment of the model, and promotes improvement of theoretical teaching level and quality.

Description

technical field [0001] The invention belongs to the design of mechanics teaching models, in particular to a continuous beam experimental model in the design of cast-in-place reinforced concrete floor slabs in structural engineering. Background technique [0002] Cast-in-place reinforced concrete floor slabs refer to the floor slabs manufactured on site according to the design position, by setting up formwork, binding steel bars, pouring concrete, curing, and removing formwork. Its mechanical model is usually simplified to a continuous beam model. Under the action of lateral load, positive bending moment occurs in the mid-span of the continuous beam, and negative bending moment occurs at the support. The bending moment envelope diagram of the continuous beam is closely related to the combination of loads in different spans. [0003] In the teaching process, theoretical methods are usually used to describe the internal force and deformation laws of continuous beams, and there...

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Problems solved by technology

[0003] In the teaching process, theoretical methods are usually used to describe the internal force and deformation laws of continuous beams, and there are no experimental items related to such structures. It is difficult for students to understand the load combination method of continuous beams, which restricts the understanding and understanding of design theory and design methods. master

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