CN115262994A

CN115262994A - Inverted anti-overturn locking construction device and method

Info

Publication number: CN115262994A
Application number: CN202210987564.3A
Authority: CN
Inventors: 董元滨; 李虎; 麻景瑞; 周志宇; 杨明昕; 李贵阳
Original assignee: Shandong Rail Transit Survey And Design Institute Co ltd; Jinan Rail Transit Group Co Ltd
Current assignee: Shandong Rail Transit Survey And Design Institute Co ltd; Jinan Rail Transit Group Co Ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2022-11-01

Abstract

The invention provides a flip-chip anti-overturn locking construction device and a method, relates to the field of flip-chip construction of large members, aims at the problem that the member is easy to incline when lifted during the construction of the existing flip-chip method to cause overturn, limits the maximum stroke of single movement through locking monomers arranged around a combined member, realizes the control of the inclination of the member in the construction process of the flip-chip method, avoids the overturn in the jacking process, restrains the maximum height difference of different jacking positions, reduces the influence of external wind load by arranging a locking piece close to the member, corrects the offset by combining a jacking assembly to enable the member to be in a vertical state at the jacking stroke end, and improves the construction efficiency of the flip-chip method.

Description

Inverted overturn-preventing locking construction device and method

Technical Field

The invention relates to the field of large-scale member inverted construction, in particular to an inverted overturn-preventing locking construction device and method.

Background

The construction of the flip-chip method occupies less land, has the advantages of no need of large hoisting machinery, less overhead operation, construction cost saving and the like, and is widely applied to construction. For example, the construction of a precast concrete tower tube section, the construction of a precast outer wall body of an annular building, the construction of a large absorption tower, the construction of an assembled silo and the like, in the construction process, a component is lifted upwards by hydraulic jacking, a new component is arranged below the lifted component, the connection relation of the components is established, and the height of the component is gradually lifted; at the initial stage of construction by the flip-chip method, the jacking process of the horizontal dimension of the component is larger than the vertical dimension, the height of the combined component at the initial stage is lower, and the jacking safety can be guaranteed.

Along with the continuous increase of the overall height of the combined rear component, the increase of an auxiliary structure outside the component causes the problem of uneven circumferential jacking weight, and simultaneously, the combined component is vertically lifted to incline or even cause overturning under the influence of different wind loads in the jacking process. In order to ensure the jacking safety, the conventional method adopts a wind cable fixing method to ensure the jacking safety and prevent the combined member from overturning.

The wind cable rope fixing method can achieve good fixing effect on the static combined member, but the jacking safety of the dynamic desulfurizing tower or the chimney in the jacking process is difficult to ensure; on one hand, a single jacking stroke in the construction process of the flip-chip method is small, the member of each section needs to be jacked repeatedly, the wind cable rope needs to be loosened and fixed again in each jacking stroke, the distance between the plurality of wind cable ropes arranged in the annular direction is long, the cooperative control difficulty is high, and the fixing effect of the wind cable ropes on the combined member cannot be guaranteed, so that the construction requirement cannot be met; on the other hand, the intensity of wind hawser is limited, and the wind hawser that satisfies the fixed demand of big specification component length, weight are great, and wind cable rope itself also receives the influence of external wind-load easily, leads to the wind cable rope of different positions to have great deviation to the fixed action effect of composite member, is difficult to guarantee the anti-overturning demand of developments jacking in-process.

Disclosure of Invention

The invention aims to provide an inverted anti-overturn locking construction device and method aiming at the defects in the prior art, the maximum stroke of single movement is limited by locking monomers arranged around a combined component, the control of component inclination in the construction process of the inverted installation method is realized, the overturn in the jacking process is avoided, the maximum height difference of different jacking positions is restrained, the locking piece is arranged close to the component to reduce the influence of external wind load, the deviation is corrected by combining a jacking assembly to enable the component to be in a vertical state at the jacking stroke end, and the construction efficiency of the inverted installation method is improved.

The invention aims to provide an inverted overturn-preventing locking construction device, which adopts the following scheme:

the locking device comprises at least three locking single bodies, wherein each locking single body comprises a limiting pull rod, a fixed seat used for connecting a component and a fixed beam used for connecting a foundation, one end of each limiting pull rod penetrates through the fixed seat and is matched with a stop block abutted against the fixed seat, the other end of each limiting pull rod penetrates through the fixed beam and is connected with a limiting plate, and the limiting pull rods can drive the limiting plates to change the vertical distance between the limiting plates and the fixed beams; and in the axial direction of the limiting pull rod, the stopping block and the limiting plate restrict the maximum distance between the fixed beam and the fixed seat in the jacking process of the component.

Furthermore, all the locking monomers are arranged at intervals in the circumferential direction of the connected component, the fixing seats connected to the same component are arranged in a coplanar mode, and the fixing beams corresponding to the fixing seats are arranged in a coplanar and horizontal mode.

Furthermore, the stopping block is located on one side, away from the fixed beam, of the fixed seat, and the stopping block axially moves along the limiting pull rod to adjust the distance between the stopping block and the limiting plate.

Furthermore, a first through hole is preset in the fixing seat, and the limiting pull rod sequentially penetrates through the first through hole and the stop block.

Furthermore, the limiting plate is positioned on one side, away from the fixed seat, of the fixed beam, the limiting pull rod is matched with the locking block, and the locking block is positioned on one side, away from the fixed beam, of the limiting plate and is abutted against the fixed beam;

and the fixed beam is provided with a second through hole, and the limiting pull rod sequentially penetrates through the locking block, the limiting plate and the second through hole.

Further, the fixed beam is connected with support and pre-buried connecting piece, and the pre-buried bottom plate in the basis is connected to the support, and pre-buried connecting piece one end is pre-buried in the basis, and the other end has the retaining member after passing the fixed beam.

Furtherly, still including the jacking subassembly, the jacking subassembly corresponds with the locking monomer and arranges, drives the fixing base through external component and removes for the fixed beam.

A second object of the present invention is to provide a construction method using the flip-chip overturn prevention locking construction device as described in the first object, comprising:

locking single bodies are installed at intervals along the circumferential direction of the component, the limiting parts are attached to the fixed seat, a set distance is reserved between the limiting plate and the fixed beam, and the jacking assembly is arranged in the component;

after the member inclines, the limiting plates of part locking monomers contact the fixed beam first, so that the member in the corresponding area stops rising, the member is continuously jacked and driven to enable the limiting plates in the other areas to gradually approach and contact the fixed beam until all the limiting plates are attached to the corresponding fixed beam, and one process step is finished;

and adjusting the stop block to change the distance between the limiting plate and the fixed beam to meet the jacking height of the next working step, and repeating the jacking process and the stop block adjusting process until the space below the component meets the arrangement requirement of the next component.

Further, when the axis of the component is vertical, the fixing seats corresponding to all the locking single bodies are positioned in the same horizontal plane; all fixed beams are in the same horizontal plane.

Further, when the stop block abuts against the fixed seat and the limiting plate abuts against the fixed beam, the limiting pull rod locks the component at the position, so that the fixed seat in the area where the limiting plate does not contact the fixed beam continues to ascend.

Compared with the prior art, the invention has the advantages and positive effects that:

(1) The problem that the component is inclined easily and leads to toppling when rising when having improved present flip-chip method construction, the biggest stroke of single removal is restricted through the locking monomer that arranges around the combined member, realize the control of component slope in the flip-chip method work progress, avoid toppling in the jacking process, retrain the maximum altitude difference of different jacking positions, the locking piece is close to the component and arranges the influence that reduces external wind load, combine jacking subassembly correction skew to make the component be in vertical state at jacking stroke terminal, improve flip-chip method efficiency of construction.

(2) The three groups of locking monomers are arranged and located at non-collinear positions, the posture of the component is restrained by utilizing the three-point plane fixing principle, the component is located at a vertical posture when the fixing seat is coplanar and is located at a horizontal state, and the vertical state of the component is calibrated by combining the fixing beam connected with the limiting pull rod, so that the alignment efficiency is improved.

(3) The maximum stroke of single jacking is restrained through the locking single body, so that the maximum inclination angle of the component is restrained, the problem of overturning caused by excessive inclination is solved, the maximum stroke of single jacking can be adjusted by adjusting the positions of the stop block and the limiting plate, and the requirements of various jacking strokes and construction processes are met; simultaneously, the fixed roof beam of spacing pull rod cooperation can lock its position when the component takes place to incline, prevents to continue to rise to other regions of guide component can reach locking position gradually, accomplish the jacking and adjust the effect well.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic structural view of an inverted overturn-preventing locking construction device in

embodiment

1 or 2 of the present invention.

Fig. 2 is a schematic structural view of a locking unit in

embodiment

1 or 2 of the present invention.

In the figure, 1, a component, 2, a jacking pull rod, 3, a jacking assembly, 4, an action block, 5, a bottom plate, 6, a limit pull rod, 7, a stop block, 8, a fixed seat, 9, a locking piece, 10, a fixed beam, 11, a support, 12, a limit plate, 13, an embedded connecting piece, 14, a foundation and 15, a locking piece are arranged.

Detailed Description

Example 1

In an exemplary embodiment of the present invention, as shown in fig. 1 to 2, an inverted overturn-preventing locking construction device is provided.

As shown in FIG. 1, the inverted anti-overturning locking construction device is provided with a plurality of locking single bodies which are arranged on a member 1 which is inverted, the locking single bodies which are arranged along the circumferential direction of the member 1 can limit the maximum stroke of the member 1 in the lifting process from a plurality of positions in the circumferential direction, and the horizontal height difference of different positions of the member 1 after the stroke is limited is also limited, so that the limitation on the axis inclination angle of the member 1 is achieved.

It should be pointed out that, along with the gradual increase of combined member 1 height, the restriction of axis inclination angle can be crescent, makes the contained angle scope of member 1 axis for vertical direction reduce, when adjusting the locking monomer, makes the locking monomer reduce the biggest stroke of member 1 jacking, reaches that the absolute value of member 1 different position level difference reduces, guarantees the stability of combined member 1 behind the increase in height.

The inverted overturning-preventing locking construction device in the embodiment is suitable for multi-stage assembled components 1 constructed by an inverted installation method, such as construction of prefabricated concrete tower tube sections, construction of prefabricated outer wall bodies of annular buildings, construction of large absorption towers, construction of assembled silos and the like. In the construction process, jacking, stroke restraint and locking are carried out on the bottom of the combined component 1, the inclination in the construction process is guaranteed to be in a controllable range, the construction efficiency is improved, and the safety in the construction process is guaranteed.

As shown in figure 1, the inverted overturn-preventing locking construction device comprises at least three locking single bodies, the locking single bodies are arranged in a non-collinear mode, and an alignment reference is determined by the aid of a three-point face fixing principle.

In this embodiment, the locking units are circumferentially arranged around the connected member 1 at intervals, the fixing seats 8 connected to the same member 1 are arranged in a coplanar manner, and the fixing beams 10 corresponding to the fixing seats 8 are arranged in a coplanar and horizontal manner.

It can be understood that through setting up at least three locking monomer groups and being in non-collinear position, utilize three point face fixing principle restraint component 1's gesture, when fixing base 8 coplane and be in the horizontality, component 1 is in vertical gesture, combines the fixed beam 10 that spacing pull rod 6 connects, realizes the demarcation to component 1 vertical state, improves and adjusts positive efficiency.

The locking monomer includes limit pull 6 and the fixing base 8 that is used for connecting component 1 and the fixed beam 10 that is used for connecting basis 14, and limit pull 6 provides the axial bearing capacity, and all limit pull 6 that the locking monomer corresponds also arrange along component 1 circumference, and under initial condition, 6 axes of limit pull are vertical and parallel with component 1 axis, and when the terminal point position of jacking process this time, 6 axes of limit pull and component 1 axis all are in vertical state, reach and adjust well. It can be understood that, in the jacking process, because component 1 can incline, therefore the axis of component 1 is not constantly in vertical state, and along with component 1 asynchronous lifting component 1 axis in different positions also can incline, corresponding spacing pull rod 6 also can incline, and this is jacking transition state.

6 one end of spacing pull rod passes and cooperates backstop 7 that has butt fixing base 8 behind the fixing base 8, further promotion to the fixing base 8 position is carried on spacingly, the other end passes and connects limiting plate 12 behind the fixed beam 10, the biggest stroke of limiting plate 12 cooperation fixed beam 10 restraint spacing pull rod 6 bottom, spacing pull rod 6 can drive limiting plate 12 and change the vertical interval with fixed beam 10 simultaneously, when 7 laminating fixing bases of backstop 8, the regional biggest promotion stroke that is component 1 this position between limiting plate 12 and fixed beam 10.

Along the axial direction of the limiting pull rod 6, the stop block 7 and the limiting plate 12 restrict the maximum distance between the fixed beam 10 and the fixed seat 8 in the lifting process of the component 1.

As shown in fig. 2, the maximum stroke of single movement is limited by the locking single bodies arranged around the combined member 1, so that the inclination of the member 1 in the construction process of the flip-chip method is controlled, and the overturning in the jacking process is avoided; meanwhile, the maximum height difference of different jacking positions is restrained, the locking piece is arranged close to the component 1 to reduce the influence of external wind load, the jacking assembly 3 is combined to correct the deviation to enable the component 1 to be in a vertical state at the jacking stroke end point, and the construction efficiency of a flip-chip method is improved.

For the structure of the locking single body, with reference to fig. 1 and 2, a stop block 7 and a fixed seat 8 which are positioned at the upper part of the locking single body are correspondingly arranged, the stop block 7 is positioned at one side of the fixed seat 8 far away from a fixed beam 10, and the downward displacement along the axial direction of the limit pull rod 6 is restrained.

It should be noted that after finishing a lifting action, the distance between the stop block 7 and the limiting plate 12 needs to be adjusted to reserve a next lifting stroke, the stop block 7 can axially move along the limiting pull rod 6 to adjust the distance between the stop block 7 and the limiting plate 12, before and after the movement, the cooperation between the stop block 7 and the limiting pull rod 6 is in a stable state, and the stop block 7 can be kept in the position to bear the load of the resisting component 1 toppling further.

In the embodiment, the stop block 7 can adopt a pin structure, the limit pull rod 6 is provided with a pin hole, and the pin hole is inserted by a pin to form locking, so that the limit pull rod 6 and the fixed seat 8 are restrained from sliding relatively; the arrangement of a plurality of pin holes enables adjustment of the fitting position. Also can adopt the screw-thread fit form, backstop 7 adopts the nut, cooperates the last predetermined screw thread section of spacing pull rod 6, forms spacing and bearing effect through screw-thread fit, can adjust the relative position of backstop 7 and spacing pull rod 6 simultaneously.

In other embodiments, the stop block 7 with other structures can be configured or selected to meet the requirements of limit bearing and position adjustment.

Specifically, as shown in fig. 2, a first through hole is preset on the fixed seat 8, and the limit pull rod 6 sequentially passes through the first through hole and the stop block 7; meanwhile, the limiting plate 12 is located on one side, far away from the fixing seat 8, of the fixing beam 10, the limiting pull rod 6 is matched with a locking block, and the locking block is located on one side, far away from the fixing beam 10, of the limiting plate 12 and is abutted to the fixing beam 10.

The fixed beam 10 is provided with a second through hole, and the limiting pull rod 6 sequentially penetrates through the locking block, the limiting plate 12 and the second through hole.

To first through-hole and second through-hole, the configuration is the unthreaded hole, and the diameter all is greater than spacing pull rod 6, but first through-hole can block backstop piece 7 and pass through, and the second through-hole can block limiting plate 12 and locking piece and pass through to satisfy and bear the weight of the demand.

It can be understood that the locking block cooperates with the limiting plate 12 to increase its load carrying capacity and to increase its contact area with the limiting plate 12 to reduce the concentrated pressure. Likewise, the locking block may be configured as a pin structure, nut structure, or the like, similar to the stop block 7, to engage the retaining tie rod 6 in a corresponding manner.

Retrain the biggest stroke of single jacking through the locking monomer to retrain the biggest inclination of component 1, reach and prevent that excessive slope from arousing the problem of toppling, and can adjust the biggest stroke of single through adjusting backstop piece 7, limiting plate 12 positions, satisfy multiple jacking stroke, work progress's demand.

Meanwhile, the position of the limiting pull rod 6 can be locked when the component 1 inclines by matching with the fixed beam 10, continuous rising is prevented, other areas of the component 1 can be gradually guided to reach the locking position, and the jacking and aligning effects are completed.

As for the structure of the fixed beam 10, a square steel structure as shown in fig. 2 may be adopted, and other forms such as i-shaped steel, steel pipe, and steel plate may also be adopted, so that the requirement of the pulling resistance in the overturning resistance process can be met. Simultaneously, with fixed beam 10 stable mounting in basis 14, the resistance to plucking that resists the toppling provides through basis 14, fixed beam 10 is connected with support 11 and pre-buried connecting piece 13, and support 11 connects pre-buried bottom plate 5 in basis 14, and pre-buried connecting piece 13 one end is pre-buried in basis 14, and the other end passes fixed beam 10 after the cooperation have retaining member 9.

Above-mentioned retaining member 9 can be chooseed for use like the nut of stopper, locking piece 15, elements such as pin, in this embodiment, in order to satisfy the bearing capacity demand, can adopt superimposed two nut structures as retaining member 9, and the reduction pine takes off the problem.

As shown in fig. 1, in this embodiment, the jacking assembly 3 is further included, the jacking assembly 3 is arranged corresponding to the locking unit, the fixing base 8 is driven by the external component 1 to move relative to the fixed beam 10, the jacking assembly 3 can adopt hydraulic jacking elements such as an existing hydraulic jack, the action block 4 arranged on the inner wall of the component 1 is connected through the jacking pull rod 2, and the jacking force is provided for the movement of the component 1.

It will be appreciated that the hydraulic jack is of a through-the-center design. When the jack jacks up, the ascending clamping head is clamped, the descending clamping head is released, and the component 1 ascends along with the hydraulic jack; when the jack retracts, the upper clamping head is loosened, the lower clamping head is clamped, the component 1 cannot slide downwards, the clamping position is adjusted to the lower part, and therefore the component 1 is gradually lifted.

Example 2

In another exemplary embodiment of the present invention, as shown in fig. 1 to 2, a construction method of an inverted overturn-preventing locking construction device is provided.

With the inverted anti-overturn locking construction device in embodiment 1, the construction method includes:

locking single bodies are installed at intervals along the circumferential direction of the member 1, a set distance is reserved between the limiting part attaching fixing seat 8, the limiting plate 12 and the fixing beam 10, and the jacking assembly 3 is arranged in the member 1;

when the axis of the component 1 is vertical, the fixing seats 8 corresponding to all the locking single bodies are positioned in the same horizontal plane; all the fixed beams 10 are positioned in the same horizontal plane;

the jacking assembly 3 jacks the member 1, after the member 1 inclines, part of the limiting plates 12 of the locking single body contact the fixed beam 10 first, so that the member 1 in the corresponding area stops rising, the member 1 is continuously jacked and driven to enable the limiting plates 12 in the rest areas to gradually approach and contact the fixed beam 10 until all the limiting plates 12 are attached to the corresponding fixed beam 10, and one working step is completed;

and adjusting the stop block 7 to change the distance between the limiting plate 12 and the fixed beam 10 to meet the jacking height of the next step, and repeating the jacking process and the process of adjusting the stop block 7 until the space below the component 1 meets the arrangement requirement of the next component 1.

In addition, when the stop block 7 abuts against the fixed seat 8 and the limit plate 12 abuts against the fixed beam 10, the limit lever 6 locks the member 1 in this position, so that the fixed seat 8 continues to rise in the area where the limit plate 12 does not contact the fixed beam 10.

With reference to embodiment 1 and fig. 1 and 2, the construction method specifically includes:

each component is checked before jacking, the lower end of a limiting pull rod 6 falls onto a foundation 14, a stop block 7 is attached to a fixed seat 8, a limiting plate 12 is located below a fixed beam 10 and keeps a distance with the fixed beam 10, and in the embodiment, the distance is set to be 10cm;

jacking subassembly 3 accomplishes a jacking stroke, and limit pull rod 6 can rise 10Cm together, and the stopper unblock moves along limit pull rod 6, and limit pull rod 6 descends to loosen the stopper again on the basis 14, and the jacking of next stroke is accomplished together with jacking subassembly 3 after making limit pull rod 6 descend 10 Cm. So as to reach the required jacking height of the component 1;

when the jacking height meets the requirement, the locking assembly keeps locking the component 1, so that the locking assembly is in a working state, and the static overturn prevention safety of the combined component 1 is ensured.

It should be noted that, the jacking assembly 3 is influenced by wind load or uneven stress caused by the installation of the tower member 1 during jacking, and the member 1 may be inclined during jacking. The region with small load of the member 1 can be lifted firstly, and when the position of the region is lifted to 10cm, the region with large load can be lifted.

When the first lifting region of the component 1 continues to ascend, the limiting plate of the locking assembly and the fixed beam 10 are stressed, the limiting hook and the fixed seat 8 are used for forcibly restraining the region of the component 1 from ascending any more, and the region is located in place; and the forced jacking assembly 3 drives other non-in-place areas of the member 1 to lift in the direction until all the parts are formed to the maximum, and a jacking stroke is completed. The member 1 is kept in a vertical state, and the overturning prevention effect is achieved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The inverted overturn-preventing locking construction device is characterized by comprising at least three locking single bodies, wherein each locking single body comprises a limiting pull rod, a fixing seat for connecting a component and a fixed beam for connecting a foundation, one end of each limiting pull rod penetrates through the fixing seat and is matched with a stop block abutted against the fixing seat, the other end of each limiting pull rod penetrates through the fixed beam and is connected with a limiting plate, and the limiting pull rods can drive the limiting plates to change the vertical distance between the limiting plates and the fixed beams; and in the axial direction of the limiting pull rod, the stopping block and the limiting plate restrict the maximum distance between the fixed beam and the fixed seat in the jacking process of the component.

2. The inverted overturn-preventing locking construction device as claimed in claim 1, wherein all the locking units are circumferentially spaced around the connected member, the fixing seats connected to the same member are arranged in a coplanar manner, and the fixing beams corresponding to the fixing seats are arranged in a coplanar horizontal manner.

3. The inverted overturn-preventing locking construction device as defined in claim 1, wherein the stop block is located on a side of the fixed base away from the fixed beam, and the stop block is axially moved along the position-limiting pull rod to adjust a distance from the position-limiting plate.

4. The apparatus as claimed in claim 1, wherein the fixing seat is pre-provided with a first through hole, and the limit rod sequentially passes through the first through hole and the stop block.

5. The inverted overturn-preventing locking construction device as claimed in claim 1, wherein the limiting plate is located on one side of the fixed beam away from the fixed seat, the limiting pull rod is fitted with a locking block, and the locking block is located on one side of the limiting plate away from the fixed beam and abuts against the fixed beam;

6. The inverted anti-overturning locking construction device as claimed in claim 1, wherein the fixed beam is connected with a support and an embedded connecting piece, the support is connected with a bottom plate embedded in the foundation, one end of the embedded connecting piece is embedded in the foundation, and the other end of the embedded connecting piece is matched with a locking piece after penetrating through the fixed beam.

7. The inverted anti-overturning locking construction device according to claim 1, further comprising a jacking assembly, wherein the jacking assembly is arranged corresponding to the locking single body, and the fixed seat is driven by an external component to move relative to the fixed beam.

8. A construction method of a flip-chip overturn prevention locking construction device as defined in any one of claims 1 to 7, comprising:

9. The construction method according to claim 8, wherein when the axis of the member is vertical, the corresponding fixed seats of all the locking units are in the same horizontal plane; all fixed beams are in the same horizontal plane.

10. The method of claim 8, wherein when the stop abuts the anchor and the stop plate abuts the anchor beam, the position of the stop lever locking member causes the anchor to continue to rise in the area of the stop plate not contacting the anchor beam.