Device and method for measuring deformation of movable formwork

Abstract

The invention discloses a movable formwork deformation measuring device and method, and the device comprises a plurality of first piers, the tops of the first piers are provided with a movable formwork, the bottom surface of the movable formwork is connected with the top surfaces of the first piers, and one side of each first pier is provided with a second pier. When the top of the movable formwork has no load, a gradienter is used for preliminarily reading a first box staff, a second box staff, a third box staff, a fourth box staff and a fifth box staff in sequence, and initial readings are obtained; after the top of the movable formwork is loaded, a gradienter is used for preliminarily reading the first telemeter rod, the second telemeter rod, the third telemeter rod, the fourth telemeter rod and the fifth telemeter rod in sequence, detection readings are obtained, and the deformation result of the movable formwork is obtained through the relative value of the difference value of the initial readings and the detection readings. The gradienter is matched with the measuring scale, so that the deformation degree of the movable formwork can be quickly measured, and meanwhile, the efficiency of measuring the deformation of the movable formwork is improved.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a mobile formwork deformation measuring device and a measuring method. Background technique [0002] At present, the cast-in-place construction of domestic bridges mostly adopts the bracket method. If the foundation is poor or the bracket cannot be installed, the mobile formwork method is generally used for construction. After the formwork is installed, a preload test is generally required. Deformation monitoring is required for the deformation of the formwork. [0003] Generally, a total station or a level is used for measurement. When using a total station for measurement, a prism needs to be placed on the formwork. The cost of precision prisms is high, and the requirements for manual installation are also high. In addition, the operation of the total station also requires professional operation. When measuring with a level instrument, it is necessary t...

AI Technical Summary

Problems solved by technology

[0003] Generally, a total station or a level is used for measurement. When using a total station for measurement, it is necessary to follow the prism on the formwork. The cost of precision prisms is high, and the requirements for manual installation are also high. In addition, the operation of the total station also requires professional operation.

When measuring with a level instrument, it is necessary to arrange measuring points on the formwork. During the measurement process, it is necessary to manually set up a tower ruler at the position of the measuring point. also difficult to implement

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