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Precast beam hoisting positioner and precast beam hoisting construction method

A positioning device and prefabricated beam technology, which is applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of difficult one-time accurate positioning, time-consuming, complicated operation process, etc., so as to avoid the displacement adjustment process and save construction period Effect

Active Publication Date: 2016-04-20
CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

During the hoisting of prefabricated beams, several surveyors and workers are required to measure and direct the positioning on the top of the pier. The driver of the hoisting equipment needs to continuously adjust and hoist large prefabricated beams according to the instructions of the surveyors to meet the requirements of precise positioning. The operation process is complicated , it is not easy to accurately locate at one time
Because the adjustment process takes a lot of time, and it is easy to cause on-site safety accidents

Method used

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  • Precast beam hoisting positioner and precast beam hoisting construction method
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  • Precast beam hoisting positioner and precast beam hoisting construction method

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0035] see figure 1 and figure 2 As shown, the present invention provides a prefabricated beam hoisting and positioning device, which includes a positioning sand box 1 , a pre-embedded device 2 and an adjusting device 3 . Wherein the pre-embedded device 2 is fixed at the bottom of the prefabricated beam, and the positioning sand box 1 is fixed beside the support at the top of the pier. The adjusting device 3 is located between the bottom of the positioning sand box 1 and the pier.

[0036] see also image 3 and Figure 4 As shown, the embedded device 2 is made of a complete stainless steel plate, which includes an arc guide part 21 and embedded bolts 22 . The pre-embedded bolts 22 are firmly welded to the arc-shaped guide part 21, and the top of the arc-shaped guide part 21 is also provided with a positioning groove 23 consistent with the concave direct...

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Abstract

The invention discloses a precast beam hoisting positioner and a precast beam hoisting construction method thereof, and relates to the bridge field; the positioner comprises a positioning sandbox fixed on the top of a bridge pier; the positioning sandbox comprises a piston and a sleeve; the piston is contained in the sleeve, and comprises a convex surface having a boss; one end of the sleeve is provided with a bottom plate; a sand layer is arranged between the bottom of the piston and the bottom plate; the side face of the sleeve is also provided with a sand discharge device; the positioner also comprises a pre-buried device fixed on the bottom of the precast beam and positioned between two adjacent bridge piers; the pre-buried device comprises an arc-shape guide piece; the top of the arc-shape guide piece is also provided with a positioning sleeve having a recessing direction consistent with the arc-shape guide piece; the arc-shape guide piece is matched with the convex surface, and guides the precast beam to slide in the boss direction. The precast beam hoisting positioner can fast hoist the precast beams, can realize contraposition by deadweight, and the precast beam position needs not to be repeatedly adjusted; the precast beam hoisting construction method is simple, convenient, and can save construction period.

Description

technical field [0001] The invention relates to the field of bridges, in particular to a prefabricated beam hoisting positioning device and a prefabricated beam hoisting construction method thereof. Background technique [0002] The traditional large-scale prefabricated beam transportation, hoisting, and positioning process mainly use the beam transport trolley to transport the large prefabricated beam to the pier, and then use the hoisting equipment to hoist the prefabricated beam. During the hoisting of prefabricated beams, several surveyors and workers are required to measure and direct the positioning on the top of the pier. The driver of the hoisting equipment needs to continuously adjust and hoist large prefabricated beams according to the instructions of the surveyors to meet the requirements of precise positioning. The operation process is complicated , it is not easy to accurately locate at one time. Because the adjustment process takes a lot of time, it is very ea...

Claims

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Application Information

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IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 邱攀黄辉李成全潘东发覃勇刚万成钢毛伟琦涂满明马涛陈治任
Owner CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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