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Standard knot jacking device and construction method for continuously and automatically jacking standard knots thereof

A jacking device and standard section technology, applied in the direction of lifting devices, etc., can solve the problems of increased total weight of steel structures, large construction site occupation, increased installation workload, etc., to achieve less auxiliary equipment, easy on-site assembly, and reduced installation work volume effect

Active Publication Date: 2014-04-23
LIUZHOU OVM MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]The existing standard-section steel frame jacking construction techniques include: ⑴Using a crane to lift stacked building blocks for construction operations, this scheme occupies a large construction site, and multiple liftings will affect the standard section The impact of the body is large, and it must be suspended in the air, which is inconvenient to operate; due to the limitation of the lifting height of the crane, the height of the tower is limited
⑵A jack is installed on both sides of the standard section for jacking. With the construction operation of the crane, this scheme is prone to eccentric loads and is not easy to correct; because there is no load conversion device, when the jack lifts the previous standard section, the next standard section Just push in, drop butt
In this way, due to the limitation of the stroke of the jack, the height of the standard section can only be lower than the full stroke length of the jack. Therefore, a tower with the same height needs several times the number of standard sections, which increases the installation workload. At the same time, the total weight of the steel structure increases and the cost also increases. high

Method used

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  • Standard knot jacking device and construction method for continuously and automatically jacking standard knots thereof
  • Standard knot jacking device and construction method for continuously and automatically jacking standard knots thereof
  • Standard knot jacking device and construction method for continuously and automatically jacking standard knots thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] A jacking device for a standard section, including a sleeve frame 1, 2 transfer beams 2, 2 load-bearing beams 3, 4 transfer beam jacks 4, 4 luffing jacks 5, 4 jacking jacks 6, and a feed platform 7. Guide rail 8, 1 feed jack 9 and base 10 (see figure 1 ,figure 2);

[0085] The frame 1 that plays a guiding and stabilizing role during the jacking process and provides load transfer support is a steel frame welded by seamless steel tubes, consisting of upper and lower layers of square steel frames, connected by high-strength bolts, in the middle of the upper layer Two conversion beam installation beams 101 with a rectangular cross section are welded symmetrically on the part, and an extension beam 102 with a circular cross section for installing the luffing jack is arranged in the middle part of the lower layer of the sleeve frame. There is a rib 103 (see image 3 );

[0086] The base 10 is a square base that is welded horizontally and vertically by steel plates and has...

Embodiment 2

[0098] A construction method for automatic jacking of a standard section steel frame, which uses the standard section jacking device and an automatic control system described in Embodiment 1 to realize the automatic jacking of a standard section steel frame, and includes the following steps:

[0099] A. Install standard section steel frame jacking device:

[0100] Assemble the standard section steel frame jacking device and place it on the existing load-bearing structure;

[0101] B. Hoisting the steel frames of the first two standard sections:

[0102] Use a crane to hoist the first and second standard section steel frames to the base in the sleeve frame and stack them up, and connect the two standard section steel frames with high-strength bolts;

[0103] C Preparations before the first jacking (see figure 1 ,figure 2):

[0104] Use the automatic control system to control the action of the jacking jack 6 and the luffing jack 5, adjust the position of the load-bearing bea...

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Abstract

A standard knot jacking device comprises a sleeve frame, a conversion beam, a force bearing beam, a conversion beam jack, an amplitude variation jack, a jacking jack, a feeding platform, a guide rail, a feeding jack and a base. The sleeve frame is installed on the base, two ends of the conversion beam are installed on the beam of the sleeve frame, connection lugs at two ends of the force bearing beam are hinged to a piston head installed on the jacking jack through pin rolls in a hinge mode, one end of the jacking jack is fixed on the base in a hinge mode through a pin roll, and the other end of the jacking jack is fixed on a force bearing beam lug plate at two ends of the force bearing beam through a pin roll. During jacking operation, the jacking device is matched with a small crane to hoist the standard knots on the feeding platform, the feeding jack jacks the feeding platform to the jacking position of the standard knots, a control device is adopted to control action of the jacking jack, the amplitude variation jack and the conversion beam jack to achieve automatic jacking of a standard knot steel frame for a journey, the jacks conduct jacking again through load conversion, the small-journey jacking jack can jack higher standard knots, and the whole construction process is simple and easy to operate.

Description

technical field [0001] The invention relates to a standard section steel frame jacking construction machine and a construction method for jacking up the standard section steel frame. Background technique [0002] The existing standard section steel frame jacking construction techniques include: ⑴ Use a crane to lift stacked building block construction operations, this scheme occupies a large construction site, and multiple liftings have a great impact on the standard section body, and it must be suspended in the air, which is inconvenient to operate; The lifting height is limited and the tower height is limited. ⑵A jack is installed on both sides of the standard section for jacking. With the construction operation of the crane, this scheme is prone to eccentric loads and is not easy to correct; because there is no load conversion device, when the jack lifts the previous standard section, the next standard section Just push it in, drop it and dock. In this way, due to the l...

Claims

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Application Information

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IPC IPC(8): B66F11/00
Inventor 李兴奎张毅甘秋萍严李荣梁利文张皓卢卫平吕振刚
Owner LIUZHOU OVM MASCH CO LTD
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