Adjustable type forced centering device for sectional beam short ling method prefabricated measurement

Abstract

The invention relates to an adjustable type forced centering device for sectional beam short ling method prefabricated measurement, and belongs to the field of bridge engineering. The device comprises a three-groove centering plate, a center bolt, a tray and horizontal fine adjustment embedded bolts; the three-groove centering plate is a round plate, the center bolt is a lengthened type general adapter, and penetrates the center of the three-groove centering plate, the center bolt and the interior of the three-groove centering plate are connected into a whole, the center bolt is fixedly connected with the try through a fastening bolt arranged at the bottom, the tray is a rectangular plate, the four corners of the tray are each provided with a pin hole, a round-angle rectangular notch is formed in the center of the tray, the horizontal fine adjustment embedded bolts penetrate the pin holes of the tray, adjusting bolts are arranged and are used for adjusting the three-groove centering plate to be horizontal, and the adjusting bolts and the tray are fixedly connected; the adjustable type forced centering device has the beneficial effects that generality is high, the centering precision is high, adjusting is convenient, the cost is low, through the notch and the horizontal fine adjustment embedded bolts on the tray, the station instrument point position and the station instrument face level can be rapidly and precisely adjusted, repeated adjustment caused by the ultralimit of the deviation of a fixed end mold and a measuring tower is avoided, the sectional beam prefabricated measurement error is effectively reduced, and meanwhile the construction efficiency is obviously improved.

Description

[0001] Technical field: [0002] The invention relates to an adjustable forced centering device for segmental beam short-line method prefabrication measurement, which belongs to the field of bridge engineering. [0003] Background technique: [0004] At present, during the prefabrication measurement construction of the segmental beam short-line matching method, due to external factors such as the foundation, the measurement tower and the fixed end formwork have displacement and uneven settlement. In order to make the measurement accuracy meet the requirements, the measuring tower or the fixed end mold must be adjusted, but the adjustment work of the measuring tower or the fixed end mold is relatively cumbersome in the field construction. If the welding points of the end mold are cut and adjusted to the correct position before welding, the The stability of the fixed end formwork structure will become worse and worse, and the production progress of the segmental beam will be grea...

AI Technical Summary

Problems solved by technology

[0004] At present, during the prefabrication measurement construction of the segmental beam short-line matching method, due to external factors such as the foundation, the measurement tower and the fixed end formwork have displacement and uneven settlement.

In order to make the measurement accuracy meet the requirements, the measuring tower or the fixed end mold must be adjusted, but the adjustment work of the measuring tower or the fixed end mold is relatively cumbersome in the field construction. If the welding points of the end mold are cut and adjusted to the correct position before welding, the It will make the stability of the fixed end formwork structure worse and worse, and greatly affect the production progress of the segmental beam

Therefore, in the case of no adjustment, the surveyors mostly correct the coordinates of the stakeout points according to the deviation value of the fixed end mold, which not only requires a large amount of calculation, but also causes errors due to repeated data corrections, resulting in relatively large deviations in the plane position and elevation positioning of the matching beam. Large, poor prefabricated line shape of segmental beams, which affects the later assembly effect

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