KR101530492B1 - Construction device and method for separate type hybrid slip form - Google Patents

Abstract

The present invention relates to a slip foam apparatus and slip foam method capable of improving the efficiency of construction by measuring the adhesive force of a concrete placed thereon and separating the lower end portion of the foam having a strong adhesive force from the concrete when necessary. The separable hybrid slip foam apparatus according to an embodiment of the present invention includes: a die having an inner surface poured with concrete, an inner surface contacting the outer surface of the poured concrete, and a foldable foldable portion formed therein; A hydraulic jack for separating molds connected to the folding unit to guide folding of the folding unit; A measuring unit for measuring an adhesion force of the poured concrete due to condensation; And a controller for controlling the operation of the hydraulic jack for separating form according to the adhesion force measured by the measuring unit, wherein when the folded-back portion is unfolded, the inner surface of the folded-back portion contacts the outer surface of the poured concrete, When the reinforced concrete part is folded, the inner surface of the folded part can be separated from the outer surface of the poured concrete.

Description

TECHNICAL FIELD [0001] The present invention relates to a hybrid type slip form device and a slip form method,

The present invention relates to a separable hybrid slip foam apparatus and a slip foam method using the slip foam apparatus. More particularly, the present invention relates to a method of separating a lower end portion of a foam having a strong adhesive force from a concrete, To a slip foam apparatus and a slip foam method which can improve the slip foam apparatus.

Slip form is a kind of sliding form. When the concrete is more than the strength that can be independent after concrete is poured, the slip form is continuously moved upwards while reinforcing the concrete, To complete the process. The slip-foam method is widely applied to a constant and ultra-high-rigidity structure of the structure. Recently, it has been widely used for construction of bridges at bridges, construction of core parts of buildings, silos and chimneys.

The slip foam method is advantageous in that the construction is quick and the work can be continuously performed for 24 hours, thereby shortening the air shortening effect. However, the slip foam method is sensitive to temperature and weather conditions and has a disadvantage that initial production and assembly costs are expensive.

Fig. 1 shows an example of a conventional slip foam method. Referring to FIG. 1, a mold 4 is installed on a yoke 6 connected to a deck, and a concrete 2 is placed in the mold 4. As shown in FIG. The hydraulic jack 8 is connected to the steel bar 10 as a device for raising the formwork 4 and can set an appropriate quantity and specifications in consideration of the weight and the weight of the concrete 2. [

Generally, the concrete 2 is poured at a distance of 20 cm, and the installation interval may vary depending on the setting time of the concrete 2. When the initial strength of the concrete (2) of 0.5 MPa to 1 MPa is developed, the formwork (4) is raised.

Regarding such a slip foam method, Korean Patent Registration No. 10-1257304 (hereinafter referred to as Patent Document 1) discloses a method of measuring the strength of concrete using a surface wave velocity measuring device including an ultrasonic wave transmitting probe and an ultrasonic receiving probe Lt; / RTI > Specifically, in Patent Document 1, an ultrasonic transmission probe applies ultrasonic waves to concrete, and an ultrasonic reception probe measures ultrasonic waves propagated through concrete. The wavelet transform process is used to detect the surface waves in the received ultrasonic waves, and thus the propagation velocity of the surface waves can be obtained, so that the strength of the concrete can be known.

However, such Patent Document 1 has a problem in that accuracy is poor as a method of predicting concrete strength based on ultrasonic velocity, and there is a problem in that countermeasures against delays in rise time are insufficient.

In addition, Korean Patent Registration No. 10-1031149 (hereinafter referred to as Patent Document 2) discloses a method for determining a lifting time of a slip foam used for building a vertical structure. Specifically, Patent Document 2 proposes a method of manufacturing a concrete slab, comprising the steps of: (a) preparing a specimen with mortar that meets the mixing conditions of the concrete placed in the slip foam; (b) measuring the temperature for each curing period of the specimen to calculate a cumulative temperature; (C) measuring the temperature of the concrete placed in the slip foam by the curing period to calculate the integration temperature, and determining whether the calculated integration temperature corresponds to the target intrusion resistance range by comparing the integrated temperature-penetration resistance relationship graph To determine whether the slip foam is lifted or not.

However, in Patent Document 2, there is a problem that excessive condensation of the surface of the concrete is not taken into consideration, especially during the hot summer season, and there is a problem that countermeasures due to the delay of the rise time are insufficient.

Accordingly, there is a need to develop a slip foam method capable of flexibly coping with the delay of the rise time and effectively preventing the quality deterioration of the concrete and the air delay.

Korean Registered Patent Publication (B1) No. 10-1257304 Korean Registered Patent Publication (B1) No. 10-1031149

The present invention has been conceived to solve the above-mentioned problems of the prior art, and it is an object of the present invention to measure the adhesive force of the poured concrete and to separate the lower end portion of the foam, A slip foam device and a slip foam method.

More specifically, the present invention provides a slip foam apparatus and a slip foam method that can more accurately predict the setting time of a concrete placed and optimize the slip timing to enable more effective construction.

The present invention also provides a slip foam apparatus and a slip foam method capable of minimizing the occurrence of surface defects in concrete due to the adhesive force of concrete and preventing the risk of air delay due to the rise of slip foam The purpose is to do.

The present invention also provides a slip foam apparatus and a slip foam method capable of preventing the rise of the slip foam from being delayed and preventing the quality of the concrete from deteriorating, To the user.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. It can be understood.

A separate hybrid slip foam apparatus according to an embodiment of the present invention for realizing the above-mentioned problems comprises: a mold having an inner surface poured with concrete, an inner surface contacting the outer surface of the poured concrete, A hydraulic jack for separating molds connected to the folding unit to guide folding of the folding unit; A measuring unit for measuring an adhesion force of the poured concrete due to condensation; And a controller for controlling the operation of the hydraulic jack for separating form according to the adhesion force measured by the measuring unit, wherein when the folded-back portion is unfolded, the inner surface of the folded-back portion contacts the outer surface of the poured concrete, When the reinforced concrete part is folded, the inner surface of the folded part can be separated from the outer surface of the poured concrete.

The folded portion may be formed at a lower portion of the mold.

The apparatus may further include a form-up hydraulic jack for raising the form according to the control of the controller.

Further, the measuring unit may measure a force applied to the elevation of the die, and measure the adhesive force based on the measured force.

In addition, when the force measured by the measuring unit exceeds a predetermined threshold value, the controller can control the form separating hydraulic jack so that the folded portion is folded back.

In addition, when the force measured by the measuring unit is less than the threshold value, the controller can control the die to be raised in a state in which the folded-back portion is unfolded.

The connecting member may further include a connection member provided at the folded-back portion of the folded-back portion to support folding of the folded-back portion.

The stiffener further includes a stiffener which is moved up and down along a rail provided on the outer surface of the mold under the control of the controller and is engageable with the connecting member. When the stiffener is coupled to the connecting member, Thereby preventing folding of the folded portion.

The controller controls the stiffener to be coupled to the connecting member when the folded-back portion is unfolded, and controls the stiffener to be disengaged from the connecting member when the folded-back portion is folded.

In the case where the folded-back portions formed on the formwork are plural, the plurality of folded-up portions are connected to each other, and the lower folded-back portion, which is one of the plurality of folded- , And the first connecting member is installed at a portion where the upper folding portion connected to the upper portion of the lower folding portion is folded.

When the upper folding portion is folded, the controller controls the stiffener to be coupled to the second linking member, and the second linking member is installed at a portion where the lower folding portion is folded.

In order to accomplish the above object, a separate hybrid slip foam method according to an embodiment of the present invention includes: a first step of pouring concrete into a die having a collapsible folding part; A second step of measuring an adhesion force of the concrete placed in the measurement part according to condensation; And a third step of controlling the operation of the hydraulic jack for separating form according to the adhesion force measured by the measurement unit by the controller, wherein the hydraulic jack for separating form is connected to the folding unit to guide folding of the folding unit The inner surface of the mold is in contact with the outer surface of the poured concrete, the inner surface of the folded portion is in contact with the outer surface of the poured concrete in the unfolded state, and the folded portion is folded The inner surface of the folded portion can be separated from the outer surface of the poured concrete.

The second step may include a second step of measuring a force applied to the mold by the mold-lifting hydraulic jack, And (2-2) measuring the adhesive force based on the measured force.

In addition, when the force measured by the measuring unit in the step 2-1 is greater than a predetermined threshold value, the controller controls the form separating hydraulic jack so that the folded part is folded in the third step.

If the force measured by the measuring unit in step 2-1 is less than the threshold value, the controller may control the mold to be elevated in a state in which the folded-back part is unfolded in the third step.

The present invention can provide a user with a slip foam apparatus and a slip foam method capable of improving the efficiency of construction by measuring the adhesive force of the poured concrete and separating the lower end portion of the foam having a strong adhesive force from the concrete when necessary .

Specifically, the present invention can provide a user with a slip foam apparatus and a slip foam method which can more accurately predict the setting time of concrete laid and enable more effective construction by optimizing slip timing.

The present invention also provides a slip foam apparatus and a slip foam method capable of minimizing the occurrence of surface defects in concrete due to the adhesive force of concrete and preventing the risk of air delay due to the rise of slip foam can do.

The present invention also provides a slip foam apparatus and a slip foam method capable of preventing the rise of the slip foam from being delayed and preventing the quality of the concrete from deteriorating, To the user.

It should be understood, however, that the effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those skilled in the art to which the present invention belongs It will be possible.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate a preferred embodiment of the invention and, together with the description, serve to provide a further understanding of the technical idea of the invention, It should not be construed as limited.
Fig. 1 shows an example of a conventional slip foam method.
Figure 2 shows one embodiment of a detachable hybrid slip foam device that may be implemented in accordance with the present invention.
Figure 3 shows a block diagram of a separate hybrid slipform device that may be implemented in accordance with the present invention.
4 is a flowchart showing an embodiment of the separate hybrid slip foam method of the present invention.
5A and 5B show the use state of the separated hybrid slip foam apparatus of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. In addition, the embodiment described below does not unduly limit the contents of the present invention described in the claims, and the entire configuration described in this embodiment is not necessarily essential as the solution means of the present invention.

With the recent development of construction technology, slim foam construction method is widely used in the construction site as construction and civil structure are becoming larger and higher. However, according to the existing method, it is difficult to predict the coagulation time, and consequently there has been a problem of deteriorating the quality of concrete and the efficiency of construction.

The present invention proposes a method that can determine the slip timing more precisely and efficiently by measuring the adhesion force according to the condensation of concrete and to minimize surface defects.

<Separated type hybrid Slip foam  Configuration of the device>

Hereinafter, a separate hybrid slip foam apparatus 100 to be proposed by the present invention will be described in detail with reference to FIGS. 2 and 3. FIG.

Figure 2 shows one embodiment of a detachable hybrid slipfoil device that may be implemented in accordance with the present invention and Figure 3 shows a block diagram of a detachable hybrid slipfoil device that may be implemented in accordance with the present invention.

2 and 3, the separated hybrid slip foam apparatus 100 of the present invention includes a mold 20, a stiffener 30, a hydraulic jack 42 for molding, a measuring unit 50, a controller 60 ). However, the components shown in FIGS. 2 and 3 are not essential, so that a separate hybrid sleep foam apparatus 100 having more or fewer components may be implemented. Further, the components shown in Figs. 2 and 3 are connected to each other in an interdependent manner, and it is possible that each component is separately or integrally implemented as shown in Figs. 2 and 3.

Hereinafter, the components for implementing the separate hybrid slip foam apparatus 100 of the present invention will be described.

The mold 20 has a hollow interior so that the concrete 2 can be installed in the internal space. When the concrete 2 is poured into the inside of the scrap cup 20, the inner surface of the scrap cup 20 comes into contact with the outer surface of the poured concrete 2.

As shown in FIG. 2, the concrete 2 is sequentially installed in the order of A, B, C, D, E, and F, and accordingly, the curing of the concrete 2 proceeds differently.

At the lower portion of the formwork 20, folded-back portions 22, 24 which are foldably installed are formed. The folding portions 22 and 24 may be formed separately from the mold 20 or may be formed integrally with the mold 20.

In FIG. 2, two folding portions 22 and 24 are shown. However, the present invention is not limited thereto, and one or more folding portions may be formed. In the case of a plurality of folding portions, the plurality of folding portions are vertically connected along the form 20. The folded portion formed at the upper portion is referred to as an upper folded portion 24 and the folded portion connected to the lower portion of the upper folded portion 24 is referred to as a lower folded portion 22 as shown in FIG.

The folding portions 22 and 24 are connected to a hydraulic jack 42 for separating molds provided on the yoke 40. The form separating hydraulic jack 42 can apply a force such that the folding portions 22 and 24 are folded or the folding portions 22 and 24 are folded.

The folded portions 22 and 24 are normally in an unfolded state as shown in Fig. The inner surfaces of the folded-back portions 22 and 24 are in contact with the outer surface of the poured concrete 2 in a state in which the folded portions 22 and 24 are unfolded.

The hydraulic jack 42 for de-molding is operated under the control of the controller 60 and the folding portions 22 and 24 can be folded by the hydraulic jack 42 for de-molding. When the folding portions 22 and 24 are folded, the inner surfaces of the folding portions 22 and 24 are separated from the outer surface of the poured concrete 2, and separation from the concrete 2 occurs.

The connecting members (26, 28) are provided at the folded portions of the folded portions (22, 24). The connecting members 26 and 28 may have a hinge-like structure to support the folding portions 22 and 24 to be folded.

A predetermined rail is provided on the outer surface of the formwork 20, and the stiffener 30 can be raised and lowered along the rail. The stiffener 30 is vertically controlled by the controller 60 and is engageable with the connecting members 26 and 28. When the stiffener 30 is coupled to the connecting members 26 and 28, the stiffener 30 serves as means for preventing the folding of the folded portions 26 and 28 where the connecting members 26 and 28 are installed.

The measuring unit 50 can measure the adhesive force of the concrete 2 placed in the mold 20 and can be implemented in the same manner as the pressure gauge 52. When the concrete 2 is poured, the condensation proceeds according to the curing. As the condensation proceeds, the adhesion of the concrete 2 increases. The measuring unit 50 measures the adhesive force of the concrete 2 and transmits a signal including the measured adhesive force information to the controller 60. [

The form-up hydraulic jack 44 is for raising the form 20. The form-up hydraulic jack 44 is connected to the rod 10, and an appropriate quantity and specification can be set in consideration of the weight and the weight of the concrete 2.

<Separated type hybrid Slip foam  Construction method>

Hereinafter, the separate hybrid slip foam method according to the above-described structure will be described in detail.

4 is a flowchart showing an embodiment of the separate hybrid slip foam method of the present invention.

Referring to FIG. 4, first, the concrete 2 is poured into the mold 20 (S10). The outer surface of the poured concrete (2) is brought into contact with the outer surface of the formwork (20).

Concrete 2 is sequentially placed in the order of A, B, C, D, E and F, so that condensation proceeds in the order of A, B, C, D, E and F, . The lower layer such as the B or C layer of the concrete 2 may become too thick to raise the slip foam so that it is necessary to fold the upper folds 24 and the lower folds 22 of the form 20 .

Next, the controller 60 controls the form-ascending hydraulic jack 44 so that the form 20 is raised, and the form-ascending hydraulic jack 44 starts to apply the force gradually. The measuring unit 50 measures the force of the hydraulic jack 44 for ascending the form and is applied to the elevation of the formwork 20 and measures the adhesive force of the concrete 2 based on the measured force at step S30. .

The controller 60 receives information on the adhesive force of the concrete 2 from the measuring unit 50. The controller 60 controls the operation of the hydraulic jack 42 for die separation corresponding to the measured adhesive force, The portions 22 and 24 can be separated from the outer surface of the concrete 2 (S40).

Specifically, when the force measured by the measuring unit 50 exceeds a preset threshold value, it can be determined that the adhesion force of the concrete 2 is large. In this case, when the form 20 is raised as it is, surface defects may be generated due to the adhesive force of the concrete 2. The control unit 60 controls the force applied by the hydraulic jack 44 to the form upward to stop and the folding units 22 and 24 are folded and the folding units 22 and 24 are separated from the outer surface of the concrete 2 So as to control the form separating hydraulic jack 42 as shown in Fig. After the folding portions 22 and 24 are folded, the form-up hydraulic jack 44 is again pressed to raise the formwork 20. [

Conversely, when the force measured by the measuring unit 50 is below the threshold value, it can be judged that the adhesive force of the concrete 2 is not relatively large, and the folding of the folding units 22 and 24 is reduced. Accordingly, the controller 60 controls the form 20 to be raised as it is in the unfolded state.

5 (a) and 5 (b), a folding process of the separated hybrid slip foam apparatus 100 will be described. 5A and 5B show the use state of the separated hybrid slip foam apparatus of the present invention.

Fig. 5A shows a state in which the lower folded-back portion 22 is folded. As shown in FIG. 5A, when it is determined that the adhesion of the lower end B layer of the concrete 2 is large and the slip foam is difficult to rise, the controller 60 can control to fold only the lower folded portion 22.

In this case, the controller 60 can prevent the upper folding portion 24 from being folded by controlling the stiffener 30 to be engaged with the connecting member 28 provided at the portion where the upper folding portion 24 is folded.

5B shows a state in which the upper folding portion 24 is folded. 5B, when it is determined that the adhesion of the lower B layer and the C layer of the concrete 2 is large and the slip foam is difficult to rise, the controller 60 controls the upper folding part 24 to be folded .

In this case, the controller 60 can prevent the lower folding portion 22 from being folded by controlling the stiffener 30 to be coupled to the connecting member 26 provided at the portion where the lower folding portion 22 is folded.

According to the separate hybrid slip foam method of the present invention, it is possible to prevent a concrete surface defect from occurring due to failure in predicting the concrete coagulation time, thereby preventing inefficiency of disassembling and reassembling the form.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the exemplary embodiments or constructions. .

2: Concrete
20: Form
22, 24: folded part
30: Stiffener
40: York
42: Hydraulic jack for separating form
50:
60:
100: Detachable hybrid slipform device

Claims (15)

A mold having an inner surface poured with concrete, an inner surface contacting the outer surface of the poured concrete, and a foldable foldable portion formed therein;
A hydraulic jack for separating molds connected to the folding unit to guide folding of the folding unit;
A measuring unit for measuring an adhesion force of the poured concrete due to condensation;
A controller for controlling the operation of the hydraulic jack for separating form according to the adhesion force measured by the measuring unit; And
And a form-lift hydraulic jack for raising the form according to the control of the controller,
The inner surface of the folded-back portion contacts the outer surface of the poured concrete,
When the folded portion is folded, the inner surface of the folded portion is separated from the outer surface of the poured concrete,
Wherein the measuring unit measures a force applied to the rising of the die and measures the adhesive force based on the measured force. The method according to claim 1,
The folded-
Wherein the mold is formed at a lower portion of the mold. delete delete The method according to claim 1,
When the force measured by the measuring unit exceeds a preset threshold value,
Wherein the controller controls the hydraulic jack for separating form so that the folded portion is folded. 6. The method of claim 5,
When the force measured by the measuring unit is lower than or equal to the threshold value,
Wherein the controller controls the mold to be elevated in a state in which the folded-back portion is unfolded. A mold having an inner surface poured with concrete, an inner surface contacting the outer surface of the poured concrete, and a foldable foldable portion formed therein;
A hydraulic jack for separating molds connected to the folding unit to guide folding of the folding unit;
A measuring unit for measuring an adhesion force of the poured concrete due to condensation;
A controller for controlling the operation of the hydraulic jack for separating form according to the adhesion force measured by the measuring unit;
A connecting member provided at a portion where the folded-back portion folds to support folding of the folded-back portion; And
And a stiffener which is raised and lowered along a rail provided on the outer surface of the mold under the control of the controller and is engageable with the connecting member,
The inner surface of the folded-back portion contacts the outer surface of the poured concrete,
When the folded portion is folded, the inner surface of the folded portion is separated from the outer surface of the poured concrete,
Wherein when the stiffener is coupled to the connecting member, the stiffener blocks the folding of the folded portion provided with the connecting member. delete 8. The method of claim 7,
The controller comprising:
And controls the stiffener to be coupled to the connecting member when the folded-back portion is unfolded,
Wherein the control unit controls the stiffener to be disengaged from the connecting member when the folded-back portion is folded. 8. The method of claim 7,
Wherein the folded portions formed on the die are plural, the plurality of folded portions are vertically connected to each other,
Wherein the controller controls the stiffener to be coupled to the first linking member when the lower folding portion of the plurality of folding units is folded,
Wherein the first connecting member is installed at a portion where the upper fold-back portion connected to the upper portion of the lower fold-back portion is folded and folded. 11. The method of claim 10,
When the upper folded portion is folded,
The controller controls the stiffener to be coupled to the second linking member,
And the second connecting member is installed at a portion where the lower folded-back portion is folded. A first step of pouring concrete into a mold having a collapsible collapsible portion;
A second step of measuring an adhesion force of the concrete placed in the measurement part according to condensation; And
And a third step of controlling the operation of the hydraulic jack for separating form according to the adhesion force measured by the measuring unit by the controller,
Wherein the hydraulic jack for separating form is connected to the folding portion to guide folding of the folding portion,
In the first step and the second step, the inner surface of the mold contacts the outer surface of the poured concrete,
The inner surface of the folded-back portion contacts the outer surface of the poured concrete,
When the folded portion is folded, the inner surface of the folded portion is separated from the outer surface of the poured concrete,
The second step comprises:
A step 2-1 of measuring a force applied to the rise of the die by the die-lifting hydraulic jack; And
And (2-2) measuring the adhesive force based on the measured force. &Lt; Desc / Clms Page number 20 &gt; delete 13. The method of claim 12,
If the force measured by the measuring unit in the step 2-1) exceeds a preset threshold value,
Wherein in the third step, the controller controls the hydraulic jack for separating form so that the folded portion is folded. 15. The method of claim 14,
If the force measured by the measuring unit in the step 2-1 is less than or equal to the threshold value,
Wherein in the third step, the controller controls the die to be elevated in a state in which the folded-back portion is unfolded.

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