The automatic control method of verticality in the construction of high bridge piers

Abstract

The invention discloses a method for automatically controlling bridge high pier construction perpendicularity. A plumb aligner control device is used, after concrete is poured to one section of a pier body, the deviation situation of a formed concrete pier body is detected, a laser plumb aligner is installed, a vertical line is provided when a next formwork is corrected, the formwork is accurately corrected, operation control is conducted in this way in a reciprocating mode until a pier column is constructed. By means of the method for bridge high pier perpendicularity construction, based on the principle that upward laser rays of the laser plumb aligner are parallel to the pier body, the deviation situation of the formwork can be clearly and visually observed through a top end formwork laser target; due to protective measures, instruments do not need to be erected multiple times in a whole high pier construction project, operating errors of the instruments are reduced, observation can be achieved at any time every day, labor intensity of measurement personnel and the number of staff are reduced, and meanwhile construction progress and pier body perpendicularity quality are guaranteed.

Description

technical field [0001] The invention relates to a bridge construction method, in particular to an automatic control method for verticality of high bridge pier construction. Background technique [0002] The traditional construction methods of high bridge piers mainly include turning formwork, climbing formwork, sliding formwork, bracket method and the latest roller formwork construction. The construction conditions in areas such as Sichuan, Guangxi, Yunnan, and Chongqing are becoming more and more difficult, and the geological conditions are becoming more and more complex, and these areas must open up land economic development channels, which will bring various impacts on bridge construction in complex areas , one of the important aspects is the impact on the construction of high piers. The verticality control of high piers has always been a cumbersome task for surveyors to control high piers. The verticality control of traditional high piers generally uses the hanging wire...

AI Technical Summary

Problems solved by technology

[0007] Now the owner requires that the construction progress is getting faster and faster. Basically, each working face is constructed with multiple high piers at the same time, and the measurement workload is correspondingly greater. It is necessary to have enough surveyors to meet the construction needs, and when adjusting the formwork, they must be on hand. During the day, the surveyors have to observe several high pier controls at the same time, which brings a lot of workload and data processing difficulties to the surveyors. Sometimes it is easy to cause deviation when explaining and adjusting the data. The traditional method can no longer meet the current construction method and construction progress.

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