Wrapping and hanging device with arch bridge suspenders convenient to replace

Abstract

The invention relates to a wrapping and hanging device with arch bridge suspenders convenient to replace. The wrapping and hanging device comprises a pair of wrapping and hanging mechanisms and a monitor mechanism. The monitor mechanism comprises a static strain collection instrument and a computer. The wrapping and hanging mechanisms comprise six supporting beams, four through jacks and two or more steel rods. A dial indicator arranged on each through jack and a strain gage pasted on each upper steel rod are connected with the static strain collection instrument through wires. An output port of the static strain collection instrument is communicated with the computer through a wire. In the use process, the two wrapping and hanging mechanisms are arranged at the positions, on the two sides of suspender components needing to be replaced, of an arch bridge; corresponding data are displayed by the computer through the static strain collection instrument; the control force of the two wrapping and hanging mechanisms is adjusted; the suspender components are replaced safely and conveniently. According to the wrapping and hanging device, operation is convenient, and difficulty and danger of high-altitude work are reduced; real-time monitor is facilitated, and control over force in the stretch-draw process is more accurate; data can verify one another in the replacement process through multivariable control, and the device is safer.

Description

technical field [0001] The invention belongs to the technical field of bridge maintenance, and in particular relates to a replacement device for arch bridge suspenders. Background technique [0002] According to the relevant design specifications of highway bridges in my country, the benchmark service life of highway bridge and culvert design is 100 years, and for most arch bridges, the original suspenders need to be replaced many times. Due to the lack of anti-corrosion and fatigue resistance in the structure of the early arch bridge suspenders, with the advancement of technology, the suspenders of the old structure will be replaced by new suspenders with better performance. Compared with the new boom replacement components, the early hoisting system needs to install jacks and other devices on the top of the arch bridge, which is more complicated in construction and is not conducive to the observation of force conversion. If the bridge steel structure is reamed, the old tu...

AI Technical Summary

Problems solved by technology

Compared with the new boom replacement components, the early hanging system needs to install jacks and other devices on the top of the arch bridge, the construction is more complicated and it is not conducive to the observation of force conversion

When reaming bridge steel structures, the old tubes must be removed and replaced with new larger bore tubes, which also destroys structural integrity

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