Device for marking central axis of arch rib of concrete-filled steel tube arch bridge

Abstract

The invention provides a marking device for the central axis of an arch rib of a concrete-filled steel tube arch bridge, which belongs to the field of building equipment and comprises a vertical horizontal bubble device, a horizontal bubble device, a midpoint indicator and an arc-shaped clamping plate device corresponding to the radius of a steel tube, and the midpoint indicator is arranged in the middle of the front end of the arc-shaped clamping plate device corresponding to the radius of the steel tube. The horizontal bubble device is horizontally arranged at the upper end of the arc-shaped clamping plate device corresponding to the steel pipe radius, the vertical horizontal bubble device is vertically arranged at the upper end of the arc-shaped clamping plate device corresponding to the steel pipe radius, and the arc-shaped clamping plate device corresponding to the steel pipe radius is placed on a steel pipe of an arch bridge rib. According to the method, the top central axis and the waist central axis of the steel pipe can be quickly and accurately found in steel pipe arch bridge construction. The device is simple in structure, convenient to use, capable of providing convenience for measuring and controlling line type and elevation, capable of achieving rapid and accurate construction and convenient to engineering, has very good application value, and greatly accelerates the efficiency of bridge building measurement.

Description

technical field [0001] The invention relates to the field of construction equipment, in particular to a device for marking the central axis of an arch rib of a concrete-filled steel tube arch bridge. Background technique [0002] With the development of society, large-scale steel bridges emerge one after another. In the construction of the steel pipe arch bridge, the diameter of the steel pipe is relatively large, and it is necessary to find the central axis of the steel pipe to measure the line type and elevation of the steel pipe. In the process of traditional large-scale steel structure bridge construction, the measurement of the line and elevation of the steel pipe is very complicated, and the accuracy cannot be well controlled. Therefore, it is necessary to design a device that can simply and quickly mark the central axis of the arch rib of the arch bridge. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a CFST arch bridge arch r...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a marking device for the central axis of the arch rib of a concrete-filled steel pipe arch bridge, which solves the existing technical problem of finding the central axis of the steel pipe during vertical assembly in the construction of a steel arch bridge, and facilitates the measurement and control of the line shape and elevation device of the arch bridge.

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