An assembled measuring tower and its installation method

Abstract

A prefabricated measuring tower and its installation method relate to the field of engineering surveying and include a plurality of segments stacked up and down. The segments are reinforced concrete structures, and the segment at the bottom is detachably fixed to the ground; any upper segment The segments are aligned and fixed on the lower segment; each segment is in the shape of a horizontal rectangular tube, which includes a bottom plate, a top plate and two side plates; a vertical ladder is installed on one of the side plates of each segment, and the ladder is connected to the The side plates are of the same height, and the ladders of multiple segments are connected into one; the upper surface of the top plate of the segment at the top is vertically installed with a steel column, and the top of the steel column is equipped with a centering plate, and the centering plate is in a horizontal state. The purpose of the present invention is to provide an assembled measuring tower and its installation method, which can realize height adjustment and partial replacement, and can be disassembled and used repeatedly.

Description

technical field [0001] The invention relates to the field of engineering measurement, in particular to an assembled measurement tower and an installation method thereof. Background technique [0002] In the manufacturing and acceptance process of structural parts in shipbuilding factories and bridge superstructure prefabrication factories, it is necessary to measure and set out the lines first, and then measure and check the alignment. The acceptance accuracy of the two needs to reach 3 mm or even higher. However, in the prior art, a steel structure measuring tower is usually used as a positioning reference when performing linear measurement. However, the existing steel structure measuring tower has the following disadvantages: [0003] 1. The height of the steel structure measuring tower is limited and cannot be increased or lowered. [0004] 2. The steel structure measuring tower is prone to permanent deformation, resulting in an error in the reference point, which canno...

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Problems solved by technology

[0003] 1. The height of the steel structure measuring tower is limited and cannot be increased or lowered

[0004] 2. The steel structure measuring tower is prone to permanent deformation, resulting in errors in the reference point, which cannot accurately provide the basis for measurement and positioning reference, and often needs to be replaced as a whole when replacing

[0005] 3. After the steel structure measuring tower is shaken by the surrounding construction, the amplitude is relatively large, which will cause the measuring instrument to be unable to accurately measure the results, and the measurement accuracy is low

[0006] 4. Due to the performance of steel, the steel structure measuring tower is easily affected by environmental factors such as temperature and wind, which makes the measuring tower itself produce a temperature shrinkage effect, so that it cannot accurately provide the basis for measurement

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