A limiting adjusting device suitable for steel structure rotary lifting and a construction method

Abstract

The application discloses a limiting adjusting device suitable for rotary lifting of a steel structure and a construction method, and relates to the technical field of steel structure construction. The limiting adjusting device comprises a structure end connecting joint, a limiting device and a supporting end connecting joint, the two ends of the limiting device are hingedly connected with the structure end connecting joint and the supporting end connecting joint respectively, the limiting device comprises an outer sleeve pipe, one end of the outer sleeve pipe close to the supporting end connecting joint is connected with an inner lining pipe, and a compression spring is arranged between the inner side of the outer sleeve pipe and the inner lining pipe. The device can realize dynamic adjustment of horizontal displacement of the steel structure in the process of rotary lifting, does not need additional manual operation in the construction process, effectively saves construction cost, and improves the convenience of construction. In addition, whether the structure has been rotated to the position can be clearly displayed through an additional scale disc, the construction is convenient, and the efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building steel structure, in particular to a limiting adjusting device suitable for steel structure rotating lifting and a construction method. BACKGROUND

[0002] With the rapid development of China's economy, in recent years, a large number of airports, high-speed rail stations and other transportation hub projects have been built in China. Such projects are often used as local landmark projects, with novel building shapes, special curved profiles, and characteristics of super-wide, super-deep and super-high differences, and at the same time, super-high assembly jigs and super-large construction machinery. In order to solve the construction problems brought by such special-shaped structures, rotating lifting as a green, environmentally friendly and cost-effective construction method is increasingly adopted by construction units. Due to the inconsistency between the rotating state and the design state, the upper and lower lifting points of the lifting structure are not on the same vertical line during the rotating stage, and the structure has horizontal swing during the lifting process, especially during the demolding stage. If no relevant measures are taken, the instantaneous large horizontal disturbance will cause large horizontal displacement of the structure, which may cause collision between the rod and the vertical structure, and even cause serious safety accidents. Therefore, how to limit the horizontal displacement of the structure during the rotating lifting process and ensure the safety of the structure during the rotating lifting process is of great significance. SUMMARY

[0003] The present application provides a limiting adjusting device suitable for steel structure rotating lifting and a construction method to solve the above technical problems of the prior art. The device can realize dynamic adjustment of the horizontal displacement of the steel structure during the rotating lifting process, without additional manual operation during the construction process, effectively saving the construction cost and improving the convenience of construction.

[0004] To achieve the above purpose, the technical scheme adopted by the present application is as follows: a limiting adjusting device suitable for steel structure rotating lifting, comprising a structure end connecting node, a limiting device and a support end connecting node, the two ends of the limiting device are hinged with the structure end connecting node and the support end connecting node respectively, the limiting device comprises an outer sleeve, one end of the outer sleeve near the support end connecting node is connected with an inner lining pipe, and a compression spring is arranged between the inner part of the outer sleeve and the inner lining pipe.

[0005] Further, one end of the inner part of the outer sleeve is provided with an end plate, the inner end of the inner lining pipe is provided with a sealing plate, and the two ends of the compression spring are connected with the end plate and the sealing plate respectively.

[0006] Further, the support end connecting node comprises an end fixed plate for connecting with the component, a double lug plate is arranged on the end fixed plate, a connecting lug plate is hinged on the double lug plate through a pin shaft, and a connecting plate connected with the limiting device is fixed on the connecting lug plate.

[0007] Further, the double lug plate is provided with a dial and a pointer.

[0008] Further, the structure end connecting node comprises a structure support connecting member, and the double lug plate, the connecting lug plate and the connecting plate of the same structure of the support end connecting node are connected to the structure support connecting member.

[0009] Further, the difference between the inner diameter of the outer sleeve and the inner liner is controlled to be 2mm on each side.

[0010] The structure end connecting node is mainly used for connecting the structure and the limiting device, and the lifted structure and the limiting device are connected through the double lug plate and the pin shaft. Different horizontal thrusts are provided by the internal compression spring at different rotation stages, the horizontal displacement of the structure is changed in the rotation process through the difference between the inner and outer pipe diameters, and the maximum horizontal displacement can also be limited to prevent the lifted structure from touching the lifting support structure and causing safety accidents during the stripping and rotation process. The support end connecting node mainly comprises a double lug plate with a dial and a connecting plate, which are connected with the limiting device through a pin shaft to ensure the release of the rotation angle of the structure during the rotation and lifting process. The limiting device, the pin shaft and the pointer are connected and fixed as a whole to rotate synchronously, and the rotated angle of the structure can be directly observed through the angle of the pointer corresponding to the dial during the lifting process, so that whether the structure is rotated to the position can be judged.

[0011] After the installation of the lifted structure is completed, the limiting device is arranged on the structure corresponding to the position of the lifting support structure, and the limiting device needs to be ensured to be horizontal and fixed on the lifting support structure through the support end node. After the lifted structure is stripped, the change of the support condition will cause the horizontal movement of the whole lifted unit, at this time, the internal compression spring of the limiting device begins to be stressed, and after the compression spring is compressed to a certain extent, the horizontal movement stops and rebounds, and finally balances after repeated reciprocation, achieving the limiting function. Subsequently, with the rotation and lifting, the structure shape changes continuously, and the compression length of the internal spring of the limiting device also changes continuously, and always balances. At the same time, the support end releases the rotation angle through the pin shaft node to ensure the smooth progress of the rotation process. According to the pointer and the dial, whether the structure is rotated to the position is judged and measured and confirmed, and the rotation and lifting of the structure are completed.

[0012] The specification of the compression spring of the limiting device should be calculated to ensure that it is within the normal stress range and prevent the spring from failing due to excessive horizontal force.

[0013] The limiting device needs to be ensured to be horizontal during installation to ensure that the angle shown by the pointer after rotation is the rotation angle. If it cannot be completely horizontal due to the site conditions, the initial scale value should be recorded, and the difference between the final scale and the initial scale is the rotation angle value.

[0014] The construction method of the above-mentioned limiting adjusting device mainly comprises the following steps:

[0015] (1) According to the calculation analysis result of structure lifting correlation, the suitable internal compression spring, outer sleeve and inner lining tube of the project are determined;

[0016] (2) The three parts of the limiting device are assembled on the ground, first, the end plate and the compression spring are welded to form a whole, then the end plate, the outer sleeve and the connecting lug plate are welded into one, at the same time, the inner lining tube, the sealing plate, the connecting plate and the connecting lug plate are welded into one;

[0017] (3) First, the combination of the compression spring and the end plate is put into the outer sleeve, then the inner lining tube is embedded in the inner part of the outer sleeve to form the limiting device;

[0018] (4) The structure end connecting node and the support end connecting node are set, the connecting double lug plate is welded on the lifted structure, and the double connecting lug plate and the end plate are assembled to support the end connecting node and welded on the lifting support structure;

[0019] (5) The limiting device is put into the double lug plate inside the two end nodes, the pin shaft is penetrated, and at the same time, the pin shaft, the limiting device and the pointer are fixed into a whole at the support end;

[0020] (6) After the limiting device is leveled, the support end node is fixed on the lifting support structure;

[0021] (7) The structure is rotated and lifted, and in the process, the limiting device is stretched and contracted according to the actual stress condition;

[0022] (8) The pointer is observed, and after the rotation and lifting angle is reached, the process is stopped;

[0023] (9) The data is rechecked, and after no error is found, the rotation and lifting is completed.

[0024] Compared with the prior art, the present application has the following beneficial effects:

[0025] (1) The construction method of the present application solves the problem of horizontal displacement during rotation and lifting, especially during the stripping process, and does not require additional operation during the process, and has good construction convenience;

[0026] (2) The construction method of the present application can directly know the rotation angle and judge whether the rotation is in place, avoiding multiple measurements and improving the construction efficiency;

[0027] (3) The device of the present application is simple, easy to install and remove, and can be reused;

[0028] (4) The present application has high applicability, the structure connecting end node can be set at any position of the structure, including the net rack welded ball, the upper and lower chords of the truss, etc., and can also be set at the position without original structure members through the conversion device, so that it is suitable for rotation and lifting of almost all structure types. BRIEF DESCRIPTION OF DRAWINGS

[0029] Fig. 1 Figure 2 is a side view of the limiting device of the present application;

[0030] Fig. 2 Figure 3 is a cross-sectional view of the limiting device of the present application. DETAILED DESCRIPTION

[0031] Reference Figs. 1-2 The present application is further described in detail with reference to the embodiments of a limiting device and construction method suitable for the rotation and lifting of steel structures.

[0032] A limiting device suitable for the rotation and lifting of steel structures, mainly comprising the following parts: a structure end connecting node, a limiting device, and a support end connecting node. The structure end connecting node mainly comprises a structure support connecting component 1, a connecting double lug plate 7, and a pin shaft 8; the limiting device comprises an outer sleeve 4, an inner lining tube 5, two end connecting lug plates 2, and an internal compression spring 11. The internal compression spring 11 is welded with an end plate 14 at the end to form a whole, which is directly placed in the outer sleeve 4. The inner lining tube 5 is provided with an end plate 12 at the end, which is used for the compression spring 11 to contact and bear force; the support end connecting node mainly comprises a pin shaft 8, a pointer 6, a double lug plate 7, and an end fixed plate 9. A scale disc 13 is provided on the double lug plate 7, and the pointer 6 horizontally shows the scale of 0°, which can show the rotation angle upward and downward.

[0033] The main steps of the installation and use method of the device are as follows:

[0034] (1) According to the calculation and analysis results related to the structure lifting, the internal compression spring 11, the outer sleeve 4, and the inner lining tube 5 suitable for the project are determined;

[0035] (2) The three parts of the limiting device are assembled on the ground. First, the end plate 14 and the compression spring 11 are welded to form a whole, and then the connecting plate 3 (structure end), the outer sleeve 4, and the connecting lug plate 2 are welded into one body, and at the same time, the inner lining tube 5, the end plate 12, the connecting plate 3 (support end), and the connecting lug plate 2 are welded into one body;

[0036] (3) First, the combination of the compression spring 11 and the end plate 14 is placed in the outer sleeve, and then the inner lining tube 5 is embedded in the inner part of the outer sleeve 4 to form the limiting device;

[0037] (4) The structure end and the support end connecting nodes are set. The double lug plate 7 is welded on the lifted structure (structure end), and the double connecting lug plate 7 and the end fixed plate 9 are assembled to form the support end connecting node, which is welded on the lifting support structure 10 (support end);

[0038] (5) The limiting device is placed in the double lug plate inside the two end nodes, and the pin shaft 8 is inserted, and at the same time, the pin shaft 8, the limiting device, and the pointer 6 are fixed into a whole at the support end;

[0039] (6) After the limiting device is leveled, the supporting end node is fixed on the lifting supporting structure 10;

[0040] (7) The structure is rotated and lifted, and the limiting device is stretched or contracted according to the actual stress condition in the process;

[0041] (8) The scale is observed by the pointer 6, and the rotation and lifting are stopped after the rotation and lifting angle is reached;

[0042] (9) The data is rechecked, and the rotation and lifting are completed after no error is found.

[0043] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments only. Any technical scheme falling within the idea of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principle of the present application should also be considered as the protection scope of the present application.

Claims

1. A position limiting and adjusting device suitable for the rotary lifting of a steel structure, characterized in that: The application relates to a structure end connecting node, a limiting device and a support end connecting node, the two ends of the limiting device are hingedly connected with the structure end connecting node and the support end connecting node, the limiting device comprises an outer sleeve, one end of the outer sleeve is connected with an inner lining tube, a compression spring is arranged between the inner part of the outer sleeve and the inner lining tube, and the difference between the inner and outer diameters of the outer sleeve and the inner lining tube is controlled to be 2mm on each side. The support end connecting node comprises an end fixing plate for connecting with a component, double-ear plates are arranged on the end fixing plate, connecting ear plates are hingedly connected with the double-ear plates through pin shafts, and connecting plates connected with the limiting device are fixed on the connecting ear plates. A scale disc is arranged on the double-ear plate, and a pointer is arranged at the end of the pin shaft. The structure end connecting node comprises a structure support connecting component, double-ear plates, connecting ear plates and connecting plates which are the same as those of the support end connecting node are connected to the structure support connecting component. An end plate is arranged at one end of the inner part of the outer sleeve, an end plate is arranged at the inner end of the inner lining tube, and the two ends of the compression spring are connected with the end plate and the end plate respectively.

2. The method of installing a position regulating device of claim 1, wherein, The application mainly comprises the following steps: (1) according to the calculation and analysis results of structure lifting, the internal compression spring, the outer sleeve and the inner lining tube of the project are determined; (2) the three parts of the limiting device are assembled on the ground, the end plate and the compression spring are welded to form an integrated body, then the end plate, the outer sleeve and the connecting ear plate are welded to form an integrated body, and the inner lining tube, the end plate, the connecting plate and the connecting ear plate are welded to form an integrated body; (3) the combination of the compression spring and the end plate is put into the outer sleeve, then the inner lining tube is embedded into the inner part of the outer sleeve to form the limiting device; (4) the structure end connecting node and the support end connecting node are arranged, the connecting double-ear plate is welded on the lifted structure, and the other connecting ear plate and the end fixing plate are assembled to form the support end connecting node which is welded on the lifting support structure; (5) the limiting device is put into the double-ear plate of the two end nodes, the pin shaft is penetrated, and the pin shaft, the limiting device and the pointer are fixed to form an integrated body at the support end; (6) after the limiting device is leveled, the support end node is fixed on the lifting support structure; (7) the structure is rotated and lifted, and the limiting device is stretched according to the actual stress condition in the process; (8) the pointer is observed, and the rotation and lifting are stopped when the rotation and lifting angle is reached; (9) the data is rechecked, and the rotation and lifting are completed when the data is correct.

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