A tower deformation pre-tightening and automatic deviation correction system

Abstract

The invention provides a tower deformation pre-tightening and automatic deviation correction system, comprising a tower deviation observation system, comprising a data collector and a monitoring center; the tower deformation pre-tightening and automatic deviation correction system comprises a tower deviation observation system and a tower deviation observation system. The data collector collects the data of tower offset distance and transmits it to the monitoring center. The monitoring center receives the data collected by the data collector, stores and calculates the data, and compares the data with the preset tower deviation threshold. A tower automatic deviation correction system includes an interconnected control center and a pumping station system, and a cable jack, wherein, the towerautomatic deviation correction system comprises an interconnected control center and a pumping station system; The control center is connected with the monitoring center. When the tower offset distance is greater than the tower offset threshold, the control center receives the signal and sends out an instruction to control the pump station system to open, the oil inlet circuit of the cable jack to open, and the cable jack supplies oil to tension the steel strand until the tower offset is corrected. It can dynamically collect the data of tower offset distance in real time, realize the tower deformation in time pretightening and automatically tension the stranded wire to correct the tower offset.

Description

technical field [0001] The invention relates to a tower deformation pre-tightening and automatic deviation correction system. Background technique [0002] After the founding of New China, with the rapid development of bridge construction, a large number of arch bridges have been built successively. Concrete arch bridges were first used in the construction of railway bridges in my country. The Yongding River No. 7 Bridge in Fengsha County, built in 1966 with a main span of 150m, was the largest concrete arch bridge in China at that time. The research on concrete arch bridges in my country mainly focuses on the optimization of construction methods. With the successive emergence of construction methods such as cable hoisting method without support, construction method with less support, cantilever construction method, swivel construction method, synchronous lifting method, stiff skeleton construction method and other construction methods, concrete arch bridges have ushered in...

AI Technical Summary

Problems solved by technology

[0004] 1) The arch ring of the Shatuo Bridge is constructed by hanging basket cantilever pouring. During the concrete pouring process, due to the increase in concrete weight, the tower will tilt toward the center of the bridge along the axis. If the monitoring and observation measures are not appropriate, the tower will be unstable. risk, causing serious safety and quality accidents

[0005] 2) Since the steel strand used for the buckle cable (anchor cable) is pre-tightened by a single front clamping jack, the stroke of the jack is short. Since there are many and long steel strands, the jack needs to be back-tensioned many times to meet the pretension. Tight, labor-intensive, low efficiency, high-altitude operations, increased safety risks, when a single pre-tightening, due to the inconsistent pre-tightening force of each steel strand, resulting in uneven stress on the steel strands, which actually cannot meet the requirements of each steel strand The same preload, there is a risk in the anchoring process

[0006] 3) Long construction period and low construction efficiency

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