WO2023071660A1

WO2023071660A1 - End portion separating device for multi-rod piece fixing structure, and tensioning method

Info

Publication number: WO2023071660A1
Application number: PCT/CN2022/121367
Authority: WO
Inventors: 王冲; 曹洲; 罗疏; 闵祥利; 向阳
Original assignee: 中建三局第一建设工程有限责任公司
Priority date: 2021-10-26
Filing date: 2022-09-26
Publication date: 2023-05-04
Also published as: CN113882373B; CN113882373A

Abstract

An end portion separating device for a multi-rod piece fixing structure, and a tensioning method. The end portion separating device comprises: a tensioning piece (10) connected to a free end (102); and a driving piece (20) connected to the tensioning piece (10), wherein the driving piece (20) can drive the tensioning piece (10) to act so as to separate the portions, located at the free end (102), of a plurality of anchor rods (100). According to the separating device and the tensioning method, the driving piece (20) drives the tensioning piece (10) to separate, by means of tensioning, the portions located at the free end (102). In this way, the portions, located at the free end (102), of the plurality of anchor rods (100) do not need to be broken apart manually and forcibly, such that the problems that labor costs are high, and broken portions of the plurality of anchor rods (100) are prone to rebound are solved, thereby reducing the costs and risk of site construction operation, and also ensuring that a follow-up steel bar bending machine can bend the portions, located at the free end (102), of the plurality of anchor rods (100) so as to satisfy the site construction operation requirements of anti-floating anchor rods.

Description

An end separation device and tensioning method for a multi-bar fixed structure

technical field

The invention relates to the technical field of on-site construction equipment for anti-floating anchor rods, in particular to an end separation device and a tensioning method for a multi-bar fixing structure.

Background technique

At present, more and more projects are developing in the direction of high, deep and large. Most underground structures use anti-floating anchors as the anti-floating measures of the project. The anti-floating anchors are generally in the form of a combination, that is, multiple anchors are welded on Together as an anti-floating anchor, the free end of the anti-floating anchor needs to be bent and anchored to the base plate. According to the construction process, it is necessary to construct the waterproof and protective layer after the installation of the anchor rod is completed. If the anchor rod is bent and inserted into the anchor rod hole in advance, the bent anchor rod head will cross due to the long anchorage length, and the distance between the anchor rods will be relatively close, which will make subsequent waterproofing and protective layer construction very difficult. The backbending method is required for construction, and the steel bar bending machine can be used to bend the anchor rod.

However, since the distance between multiple anchors is relatively close after the multiple anchors are fixed and welded (multiple anchors need to be welded as a whole in advance, and the anchor holes cannot be welded), the steel bar bending machine cannot extend in, and usually manually The parts at the free ends of multiple anchors are manually broken apart, often requiring multiple people to break apart, resulting in high labor costs and the potential safety hazard of anchor springback.

Contents of the invention

In view of the above-mentioned problems in the prior art, the present application proposes an end separation device and a tensioning method for a multi-bar fixed structure, which solves the problem caused by manually breaking apart the parts of the free ends of multiple anchor bars. The problem of high labor costs.

The end separation device for a multi-bar fixing structure of the present invention, the multi-bar fixing structure has a fixed end where a plurality of anchor rods are fixed together and a free end where a plurality of anchor rods are closed together, and the end separation device includes: The tension member is connected to the free end; the driving member is connected to the tension member; wherein, the driving member can drive the tension member to move so as to separate the parts of the plurality of anchor rods at the free end.

In one embodiment, the free end includes a plurality of tension ends, the tension member includes a plurality of tension ropes, and one end of the plurality of tension ropes is connected to a plurality of tensioned ends in a plurality of tension ends in one-to-one correspondence. on the tension end. Through this embodiment, the driver can apply tension to multiple tension ropes at the same time, and multiple tension ropes can simultaneously tension multiple tension ends to be tensioned, thereby improving the working efficiency of the end separation device , thereby improving the field operation efficiency of the anti-floating anchor rod.

In one embodiment, the driver includes one or more tensioners. Through this embodiment, the wire tensioner is easy to operate and can be operated by only one person, thereby reducing the cost of on-site construction operations.

In one embodiment, when there are multiple wire tensioners, the other ends of the multiple tension ropes are connected to the multiple wire tensioners in a one-to-one correspondence. Through this embodiment, a plurality of wire tensioners can simultaneously tension a plurality of tension ropes to stretch apart a plurality of tension ends to be tensioned, thereby improving the tension efficiency of the end separation device.

In one embodiment, when there is one wire tensioner, there are two tension ropes, and the end separation device also includes a guide beam, and the two tension ropes are respectively wound around the two ends of the guide beam, so that the wire tensioner can Simultaneously stretch the two tensioning ropes. Through this embodiment, the guide beam has a guiding function, which can ensure that the wire tensioner applies tension to the two tension ropes at the same time, so that the two tension ropes tension the two tension ends in opposite directions. In this way, it is ensured that the parts of the two anchor rods at the free ends are separated, so that the subsequent reinforcement bending machine can enter the site to bend the separated part, thereby meeting the on-site construction requirements of the anti-floating anchor rods.

In one embodiment, the end separation device further includes a pulley assembly, the pulley assembly is arranged on at least one of the two ends of the guide beam, and the tension rope is wound around at least one end through the pulley assembly. Through this embodiment, setting the pulley assembly can avoid direct contact between the tension rope and the guide beam, and reduce the friction force on the tension rope through rolling friction, thereby reducing the wear on the tension rope and improving the tension of the tensioner. tight line efficiency.

In one embodiment, the thread tensioner is a double-hook thread tensioner. Through this embodiment, the double-hook wire tensioner can apply tension to the two tension ropes at the same time, so that the two tension ropes simultaneously tension the two tension ends. In this way, it is ensured that the parts of the two anchor rods at the free ends are separated, so that the subsequent reinforcement bending machine can enter the site to bend the separated part, thereby meeting the on-site construction requirements of the anti-floating anchor rods.

In one embodiment, a support seat assembly is also included, and the support seat assembly is connected with the guide beam for supporting the guide beam. Through this embodiment, the guide beam has a guiding function, which can ensure that the wire tensioner applies tension to the two tension ropes at the same time, so that the two tension ropes tension the two tension ends in opposite directions. In this way, it is ensured that the parts of the two anchor rods at the free ends are separated, so that the subsequent reinforcement bending machine can enter the site to bend the separated part, thereby meeting the on-site construction requirements of the anti-floating anchor rods.

In one embodiment, the support base assembly includes: a column, one end of which is connected to the guide beam; a base, connected to the other end of the column. Through this embodiment, the support seat assembly can fix and support the guide beam, so as to ensure that the guide beam can guide the tension rope accurately, and the double hook wire tensioner can work normally. Therefore, it is ensured that the end separation device can separate the parts of the plurality of anchor rods located at the free ends.

The present invention also provides a tensioning method, which adopts the above-mentioned end separation device for tensioning, including: Step 1, connecting the tensioning member with the free end of the multi-bar fixing structure; Step 2, operating and driving until the parts at the free ends of the plurality of anchor rods are opened and separated.

The above technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of the present invention can be achieved.

Compared with the prior art, the end separation device and tensioning method for multi-bar fixed structure provided by the present invention has at least the following beneficial effects:

The driving member separates the part located at the free end in a tensioning manner by driving the tensioning member. In this way, it is not necessary to break apart the parts of the anchor rods at the free ends by manual hard breaking as in the related art. The high labor cost caused by adopting this separation method and the problems that the broken parts of multiple anchor rods are easy to rebound are avoided. This reduces the cost and risk of on-site construction operations, and at the same time ensures that the subsequent steel bar bending machine can smoothly extend and bend the parts at the free ends of multiple anchor rods to meet the on-site construction operations of anti-floating anchor rods. Require.

Description of drawings

Hereinafter, the present invention will be described in more detail based on the embodiments with reference to the accompanying drawings. in:

Fig. 1 has shown the end separation device structure schematic diagram (showing the assembly relationship of anti-floating anchor rod and end separation device structure) for multi-bar fixed structure of the present invention;

Figure 2 shows a schematic diagram of the connection relationship between the guide beam and the support seat assembly in Figure 1;

Figure 3 shows another angled view of the base in Figure 1;

Fig. 4 has shown the schematic diagram of the connection relationship of the guide beam, the pulley assembly and the support seat assembly in Fig. 1;

Fig. 5 has shown the method flowchart of stretching method of the present invention;

Fig. 6 shows a method flow chart of the construction method of the present invention.

In the figures, the same parts are given the same reference numerals. The drawings are not to scale.

Reference signs:

10. Tension parts; 11. Tension ropes; 20. Driving parts; 21. Tensioners; 30. Guide beams; 40. Support seat components; 41. Columns; 42. Bases; 50. Pulley components; 100. Anchor Rod; 101, fixed end; 102, free end; 1021, tension end.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing.

It should be noted that the multi-bar fixing structure in the present application is an anti-floating anchor bar, which is fixed together by welding a plurality of anchor bars 100 . The anti-floating anchor rod has a fixed end 101 where a plurality of anchor rods 100 are welded and fixed together, and a free end 102 where a plurality of anchor rods 100 are folded together.

Of course, the end separation device in the present application is not limited to be used for anti-floating anchors, and can also be applied to other multi-member fixing structures, such as a multi-member fixing structure in which multiple members are fixed by binding.

It should be noted that the present application has developed an end separation device of a multi-bar fixing structure. The separation device reduces the work intensity of the workers, and the separation operation can be completed simply by shaking the wire tensioner, and the anchor rod 100 is easy to maintain stability after separation, reducing the risk of the anchor rod 100 rebounding. At the same time, the separation device has the characteristics of simple structure, convenient processing and simple use method, which meets the needs of actual production on site.

As shown in Figures 1 to 4, the present invention provides an end separation device for a multi-bar fixing structure, the multi-bar fixing structure has a fixed end 101 with a plurality of anchor rods 100 fixed together and a plurality of anchors The free ends 102 of the rods 100 are closed together, and the end separation device includes a tension member 10 and a driving member 20 . Wherein, the tension member 10 is connected to the free end 102 . The drive element 20 is connected to the tension element 10 . The driving member 20 can drive the tension member 10 to separate the parts of the plurality of anchor rods 100 located at the free ends 102 .

In the above arrangement, the driving member 20 separates the part located at the free end 102 in a tensioning manner by driving the tensioning member 10 . In this way, there is no need to break apart the parts of the plurality of anchor rods 100 located at the free ends 102 by manual hard breaking as in the related art. It avoids the high labor cost caused by adopting this separation method, and the problems that the broken parts of multiple anchor rods 100 are easy to rebound. Thereby reducing the cost of the on-site construction work and the risk of the on-site construction work, and at the same time ensuring that the subsequent steel bar bending machine can smoothly extend and bend the parts of the multiple anchor rods 100 located at the free ends 102 to meet the requirements of the anti-floating anchor rods. On-site construction work requirements.

Specifically, as shown in FIG. 1 , in one embodiment, the free end 102 includes a plurality of tension ends 1021, the tension member 10 includes a plurality of tension ropes 11, and one end of the tension ropes 11 corresponds to each other one by one. It is connected to a plurality of tension ends 1021 to be stretched among the plurality of tension ends 1021 .

In the above arrangement, the driver 20 can simultaneously apply tension to multiple tension ropes 11, and the multiple tension ropes 11 can simultaneously tension multiple tension ends 1021 to be tensioned, thereby improving the performance of the end separation device. The working efficiency of the anti-floating bolt is improved, and the field operation efficiency of the anti-floating bolt is improved.

Further, as shown in FIG. 1 , in one embodiment, the free end 102 includes two tension ends 1021, the tension member 10 includes two tension ropes 11, and one end of the two tension ropes 11 corresponds to each other. The sleeve is connected to the two tension ends 1021 .

Specifically, as shown in FIG. 1 , in one embodiment, the driving member 20 includes a wire tensioner 21 .

Specifically, as shown in Figure 1, in one embodiment, there are two tensioning ropes 11, and the end separation device also includes a guide beam 30, and the two tensioning ropes 11 are respectively wound around the left and right ends of the guide beam 30 , so that the wire tensioner 21 can simultaneously tension two tensioning ropes 11.

In the above arrangement, the guiding beam 30 has a guiding function, which can ensure that the tensioner 21 applies tension to the two tensioning ropes 11 at the same time, so that the two tensioning ropes 11 stretch the two tensioning ends 1021 in opposite directions. Therefore, it is ensured that the parts of the two anchor rods 100 at the free ends 102 are separated, so that the subsequent reinforcement bending machine enters the site to bend the separated parts, thereby meeting the on-site construction requirements of the anti-floating anchor rods.

Further, as shown in FIG. 1 , the thread tensioner 21 is a double-hook thread tensioner.

Of course, in an alternative embodiment not shown in the accompanying drawings of the present application, the driving member 20 includes a plurality of wire tighteners 21. The wire tensioners 21 are connected, that is, each wire tensioner 21 is individually connected to a tensioning rope 11, and tensions a tensioning end 1021 to be tensioned. In this way, a plurality of tensioners 21 tension a plurality of tension ends 1021 to be tensioned in one-to-one correspondence, so as to realize the partial separation of the plurality of anchor rods 100 at the free ends 102 .

Specifically, as shown in Figure 1, in one embodiment, the end separation device further includes a pulley assembly 50, the pulley assembly 50 is arranged on the two ends of the guide beam 30, and the two tension ropes 11 pass through respective pulley assemblies The member 50 is wound around two ends of the guiding beam 30 .

In the above setting, setting the pulley assembly 50 can avoid the direct contact between the tension rope 11 and the guide beam 30, and reduce the friction force on the tension rope 11 by means of rolling friction, thereby reducing the wear on the tension rope 11 and improving the performance of the tension rope 11. The tightening efficiency of the thread tightener 21 is ensured.

Further, as shown in FIG. 1 , in one embodiment, the pulley assembly 50 includes a fixed pulley.

Of course, according to actual conditions, the pulley assembly 50 may include a plurality of fixed pulleys or a combination of fixed pulleys and movable pulleys.

Further, as shown in FIG. 1 , in one embodiment, the tension rope 11 is a steel wire rope. The guide beam 30 is shaped steel, such as a rectangular square tube.

Further, as shown in FIG. 1 , the double-hook wire tensioner is arranged at the middle position at the bottom of the guide beam 30 .

Specifically, as shown in FIGS. 1 to 4 , in one embodiment, the end separation device further includes a support seat assembly 40 connected to the guide beam 30 for supporting the guide beam 30 .

In the above arrangement, the support seat assembly 40 can fix and support the guide beam 30, so as to ensure that the guide beam 30 can guide the tension rope 11 accurately, and the double hook wire tensioner can work normally. Therefore, it is ensured that the end separating device can separate the parts of the plurality of anchor rods 100 located at the free ends 102 .

Specifically, as shown in FIGS. 1 to 4 , in one embodiment, the support seat assembly 40 includes a column 41 and a base 42 . Wherein, one end of the column 41 is connected with the guide beam 30 ; the base 42 is connected with the other end of the column 41 .

In the above arrangement, the height of the column 41 can be set according to the height of the free end 102 to ensure that the end separation device is connected to the free end 102 correctly. The base 42 has a supporting function, which can ensure that other components arranged on it will not be overturned or toppled during operation, thereby ensuring that the end separation device can work normally.

Further, as shown in FIG. 1 to FIG. 4 , in one embodiment, the base 42 is a cross, which can be welded by three shaped steels, such as rectangular square tubes. The column 41 is shaped steel, such as a rectangular square tube.

As shown in Figures 1 to 4, a complete embodiment of the end separation device in the present application is elaborated below

The end separation device provided in the present application can reduce the difficulty of operation in the process of separating multiple bolts, reduce the risk of bolt springback, and achieve the purpose of saving costs. The end separation device adopts a rectangular square tube as its supporting rod (the guide beam 30). Fixed pulleys are fixed at both ends of the rectangular square tube, and a steel wire rope is wound on the fixed pulley. The wire device can be used to bear the pulling force of the anchor rod separation. The wire tensioner can reduce the working intensity of the workers. The two ends of the wire rope are balanced by the fixed pulley to prevent the two anchor rods from being separated asymmetrically. After separation, the double hooks are tightened. The tightening of the threader can maintain the opening degree of the anchor rod and prevent it from rebounding, which improves safety and reduces potential safety hazards.

Specifically, the end separation device is mainly composed of 5 rectangular square tubes of 100mm×100mm×2.5mm welded together, plus two fixed pulleys fixed at both ends of the support rod, and a double hook tightening wire fixed in the middle of the support rod. It consists of a device and two steel wire ropes wound around a fixed pulley.

As shown in Figure 5, the present application also provides a tensioning method, using the above-mentioned end separation device for tensioning, including the following steps:

Step 1, connecting the tension member with the free end of the multi-bar fixed structure;

Step 2, operating the driving member until the parts of the anchor rods located at the free ends are opened and separated.

As shown in Figure 6, this application also provides a kind of construction method, and construction method comprises the following steps:

Step 1, the calculation of the pressure bearing of the rectangular square tube, the tension of the wire rope and the design of the end separation device;

Step 2, production and processing of the end separation device;

Step 3, the installation of the end separation device (the installation of the wire tensioner and the insertion of the wire rope);

Step 4, the end separation device performs tension separation operation against the floating anchor rod;

Step five, the steel bar bending machine bends the anti-floating anchor rod;

Step 6, remove the tension force, and proceed to the separation of the next anti-floating anchor rod.

It should be noted that the shape specification, tensioning method and construction method of the end separation device are optimized shape specifications or methods, and the shape specification, quantity, weld form, steel wire rope and fixed pulley quantity of the section steel in the end separation device Changes in specifications and method sequences in this application all belong to the protection scope of the present invention.

It should be noted that the multi-member fixed structure can be set as three planted bars (reinforcing bars), the length of the three planted bars is 6m, and the middle part is spot welded to form a whole bundle. After the definition is expanded, multiple bars can be locally fixed as one. The other end needs to be separated from the structure.

In describing the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", " The orientation or positional relationship indicated by "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

Although the invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely illustrative of the principles and applications of the invention. It is therefore to be understood that numerous modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the invention as defined by the appended claims. It shall be understood that different dependent claims and features described herein may be combined in a different way than that described in the original claims. It will also be appreciated that features described in connection with individual embodiments can be used in other described embodiments.

Claims

An end separation device for a multi-rod fixing structure, characterized in that the multi-rod fixing structure has a fixed end where a plurality of anchor rods are fixed together and a free end where the plurality of anchor rods are closed together , the end separation device includes:

a tension member connected to the free end;

a driving member connected to the tension member;

Wherein, the driving member can drive the tension member to separate the parts of the plurality of anchor rods located at the free ends.
The end separation device for a multi-bar member fixing structure according to claim 1, wherein the free end includes a plurality of tension ends, the tension member includes a plurality of tension ropes, and the plurality of tension ends One end of the tensioning rope is connected to a plurality of tensioning ends to be tensioned among the plurality of tensioning ends in one-to-one correspondence.
The end separation device for a multi-bar member fixing structure according to claim 2, wherein the driving member includes one or more wire tensioners.
The end separation device for multi-bar fixing structure according to claim 3, characterized in that, when there are multiple said tensioners, the other ends of the multiple tensioning ropes are in one-to-one correspondence with multiple connected to one of the tensioners.
The end separation device for a multi-bar member fixing structure according to claim 3, wherein when there is one said tensioner, there are two tension ropes, and said end separation device also includes As for the guiding beam, the two tensioning ropes are respectively wound around the two ends of the guiding beam, so that the tensioner can simultaneously tension the two tensioning ropes.
The end separation device for multi-bar fixing structure according to claim 5, characterized in that, the end separation device further comprises a pulley assembly, and the pulley assembly is arranged on at least one of the two ends of the guide beam Above, the tension rope passes through the pulley assembly and is wound around the at least one end.
The end separation device for a multi-bar fixing structure according to claim 6, wherein the wire tightener is a double-hook wire tightener.
The end separation device for a multi-bar fixing structure according to claim 5, further comprising a support seat assembly connected to the guide beam for supporting the guide beam.
The end separation device for a multi-bar fixed structure according to claim 8, wherein the support seat assembly comprises:

A column, one end of which is connected to the guide beam;

The base is connected with the other end of the column.
A tensioning method, characterized in that the tensioning method uses the end separation device described in any one of claims 1 to 9 for tensioning, comprising:

Step 1, connecting the tension member with the free end of the multi-bar fixed structure;

Step 2, operating the driving member until the parts of the anchor rods located at the free ends are opened and separated.