Buckle tower deviation monitoring device

Abstract

The invention provides a buckle tower deviation monitoring device. The buckle tower deviation monitoring device comprises a buckle tower strut perpendicular to a base. An indium steel wire is arrangedon the axis of the buckle tower strut, a coordinatograph is fixed at the top end of the buckle tower strut, a buoy is fixed above the coordinatograph, the top end of the indium steel wire is connected to the bottom of the buoy, and the indium steel wire vertically penetrates through the coordinatograph downwards; and the coordinatograph is electrically connected to the storage battery. The indiumsteel wire is located in the protection tube and is always in a vertical tensioning state after being connected with the buoy, the device belongs to an independent working system, and is not influenced by factors such as elastic deformation, bending, and boundaries of the buckling tower and external wind and rain, and meanwhile, the plumb line coordinatograph and the buckling tower structure aresynchronously deformed, so that the center offset of the top of the buckling tower can be accurately obtained, the measurement precision is high, and the reliability and durability are good.

Description

technical field [0001] The invention relates to a monitoring device for buckle tower deviation. Background technique [0002] At present, the cable-stayed buckle-hanging method is commonly used in the construction of domestic arch bridges. This method needs to set up a cable-stayed buckle cable to pull the cantilevered arch rib, that is, one end of the buckle cable is fixedly connected to the arch rib, and the other end is anchored on the buckle tower. The back cable is installed on the other side of the tower to balance the horizontal force of the buckle cable, and the back cable is anchored in the ground anchor, or a turning pulley is used to combine the buckle and the back cable. In short, the buckle cable connects the main arch and the buckle tower, and the back cable connects the buckle tower and the ground anchor. When the horizontal force generated by the buckle and the back cable is unbalanced, the buckle tower will produce a deviation phenomenon, which will affect t...

AI Technical Summary

Problems solved by technology

[0006] (1) It is assumed that the buckle tower is a rigid body without elastic deformation, so the total length of the buckle tower is assumed to be a fixed constant in the calculation, but in fact, the buckle tower is generally as high as tens of meters, and its own length will also change accordingly after deformation If it is still calculated according to the total length of the tower in its original state, there will be a certain deviation in the result

[0007] (2) It can only monitor the offset of the buckle tower in a specified direction on the plane. Generally, it is set to monitor the offset along the bridge direction according to the focus of attention. Therefore, the offset in the transverse bridge direction on the plane cannot be monitored, that is, it cannot reflect Is there any torsion in the tower

To realize this function, a whole set of equipment needs to be added separately, which is uneconomical

[0008] (3) The special high-strength steel wire, one of the key components, is in the natural environment. Although it is suspended and tensioned by a heavy hammer, due to the large length of the overall suspension, there is a certain natural droop. At the same time, when the wind is strong, the steel wire may produce Vibration or jitter, which has a certain influence on the observation results

[0009] (4) Due to the existence of special components, the cost of the whole system is too high, and the market price is about 800,000, which is not conducive to popularization and application

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