KR20100043161A - Pillar construction method by layer-built and frame construction method adapting the same - Google Patents

Abstract

PURPOSE: A construction method for a large-diameter column and a construction method for a frame of a structure using the same are provided to construct a building column, a large-diameter column and a bridge column using a drying process in a construction site. CONSTITUTION: A construction method for a large-diameter column is as follows. One large-diameter column(P3) is formed by loading unit blocks(200) manufactured by precast concrete. Coupling grooves are formed on the top surface of the unit blocks, and the coupling protrusions are formed on the bottom surfaces of the unit blocks. The unit blocks are coupled each other.

Description

Vertical construction method of large diameter column and frame construction method using it {Pillar construction method by layer-built and frame construction method adapting the same}

The present invention relates to a method for constructing a large diameter pillar and a method for constructing a framework of a structure by applying the method, and more particularly, a single large diameter while stacking a plurality of unit blocks made of precast concrete of unit length The present invention relates to a method of constructing a pier, a pile, a column of a column, and a frame framing method using the method of constructing a column.

In general, pillars, which are vertical members in a structure, become members that finally support the load while transferring them. Examples of pillars include pile columns below a foundation, bridge columns in bridges, and building columns in general buildings.

The construction method of pillars can be largely divided into two types: dry construction method which carries out dry construction such as section steel, steel pipe, PC, etc. manufactured in 1 unit (usually 1 ~ 3 floor height) and installs them on the site. Wet construction method that reinforces reinforcement in the field and pours concrete to finish. The dry construction method and the wet construction method are appropriately selected in consideration of various conditions (construction situation, construction scale, construction period, construction cost, etc.).

However, large structures, structures designed for long spans, or structures that require sufficient reinforcement due to soft ground, require large diameter columns (building columns, pile columns, piers, etc.) with pillar diameters ranging from 1000 to 3000 mm. Until now, the construction of large diameter columns has been carried out depending on the wet construction method. This is because under the conventional dry construction method, the size of the dry member is considerably enlarged, making transportation and lifting difficult. Therefore, the current large diameter pillar construction is a situation that involves a variety of problems, such as increased work volume, sufficient construction period, uncertain construction quality due to wet construction in the field.

The present invention has been developed to improve the above-described problems, the field wet type by constructing a single large diameter pillar while laying up and down a plurality of unit blocks made of precast concrete of unit length while having a cross section corresponding to the large diameter pillar There is a technical problem to provide a large diameter pillar construction method that solves various problems according to construction.

In order to solve the above technical problem, the present invention is a method of constructing a pile pillar constructed in the ground as a large diameter pillar, while constructing a single large diameter pillar while stacking a plurality of unit blocks made of precast concrete of unit length up and down The unit blocks are manufactured so that coupling grooves or coupling protrusions are formed on upper and lower surfaces thereof, and the vertically stacked construction method of large diameter pillars is characterized in that the unit blocks are laminated by custom coupling between the coupling grooves and the coupling protrusions. to provide.

In addition, the present invention is a method for constructing a pile pillar, a pier pillar or a building pillar as a large diameter pillar, while constructing a single large diameter pillar while stacking a plurality of unit blocks made of precast concrete of unit length up and down, the unit block Silver is manufactured so that through-holes penetrating the upper and lower surfaces are laminated at the same time by closely fitting the unit blocks by vertical steel wires or steel bars which are inserted into the through-holes of a plurality of unit blocks at the same time. Provides a vertical stacking method of the column.

In addition, the present invention is a method for constructing the frame of the building, the pillar construction step of constructing a large-sized building pillar in the vertical stacking method of the laminated construction while the unit blocks are closely connected to each other by steel wire or steel rod; and the building Beam construction step of constructing while joining the beam to the column; including, but the column construction step is adopted to the junction with the beam by adopting that the unit block immediately below the junction with the beam in the building pillar is made larger than other unit blocks The mounting jaw is made to be provided, and the beam construction step provides a frame construction method of the building, characterized in that made while mounting the beam on the mounting jaw.

In addition, the present invention is a method for constructing the frame of the building, the pillar construction step of constructing a large-sized building pillar in the vertical stacking method of the laminated construction while the unit blocks are closely connected to each other by steel wire or steel rod; and the building Beam construction step of constructing while joining the cheolgolbo to the pillar; comprising, but the pillar construction step is made by installing a steel bracket instead of the unit block located at the junction of the beam in the building pillar, the beam construction step is Provided is a frame construction method of the building, characterized in that made by welding or bolted steel cheolgolbo to the steel bracket of the building pillar.

According to the present invention, the following effects are expected.

First, it is possible to construct large-diameter pile pillars, pier columns, building pillars, etc. by dry process without following the wet process in the field, and as a result, it is possible to improve workability and economic efficiency by simplifying field work.

Second, it is possible to secure a constant construction quality because of the use of a certain quality precast concrete member produced in the factory, as a result it is possible to construct a large diameter pillar having a stability of the design strength.

Third, since the unit blocks stacked up and down are joined together while being tensioned with steel wires or steel rods, the pillars, which are the compression members, are applied as post-tension in the compression direction. .

1 and 2 illustrate an example in which unit blocks are laminated by a large-diameter pile pillar by custom coupling as an embodiment of the present invention.
3 and 4 show an example in which the unit block is laminated by a large-diameter pile pillar connected by a steel wire or a steel rod as another embodiment of the present invention.
FIG. 5 illustrates an example in which unit blocks are laminated by a large-diameter pier pillar by being connected by steel wires or steel bars as another embodiment of the present invention.
Figure 6 shows an example in which the unit block is laminated by a large diameter building pillar is connected by a steel wire or steel rod as another embodiment of the present invention.
FIG. 7 is a construction flowchart illustrating an example in which the construction method of the large-diameter building pillar according to FIG. 6 is applied to the top-down construction method.

The present invention has a technical feature in the construction of a single large diameter column (pile column, pier column, building pillar, etc.) while stacking a plurality of dry unit blocks (100, 200). That is, the unit blocks 100 and 200 having a predetermined unit length while having a cross section corresponding to the large-diameter pillars to be constructed are prepared and prepared by precast concrete, and the unit blocks 100 and 200 thus prepared are brought into the field. After that, by stacking one by one, the unit blocks 100 and 200 are joined to each other to be constructed as one large diameter pillar. It is preferable to determine the unit length of the unit blocks 100 and 200 in consideration of transporting and lifting weight. For example, when constructing a large diameter pillar having a diameter of 1000 to 3000 mm, a height of 50 to 200 mm is appropriate. . In addition, the unit blocks (100, 200) can be produced in various cross-sectional shapes, such as round, square, depending on the shape of the large diameter column to be constructed, as well as precast into concrete alone as well as concrete and other materials (plastic, steel, etc.) It can also be synthesized and precast.

On the other hand, in the present invention, the laminated construction of the unit blocks (100, 200) is directly in the construction position (perforated drilling holes (H) if the construction in the pile pillars, pillar positions if the construction in the pillar columns or building pillars) As well as proceeding with the construction by laminating one by one, it is also possible to proceed with a method of constructing a plurality of unit blocks (100, 200) in a construction site by laminating at a construction location for each construction unit. According to the present invention, it is possible to construct a large diameter column in a dry process, and as a result, various effects (improving workability, reducing construction cost, shortening construction period, etc.) may be expected.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

1 and 2 is an embodiment of a laminated construction method of large diameter pillars according to the present invention, shows an example in which a plurality of unit blocks 100 are stacked while being custom-fitted to be constructed as one large diameter pile pillar (P1).

As shown, the unit block 100 is manufactured so that the coupling groove 110 or the coupling protrusion 120 is formed on the upper and lower surfaces, and the unit block 100 is mutually connected to the coupling groove 110 and the coupling protrusion ( By stacking 120). According to the custom coupling is the load transfer between the unit blocks 100 is made, thereby stacking a plurality of unit blocks 100 is constructed in the ground and behaves as a single large-diameter pile pillar (P1) to support the upper structure. .

After the unit block 100 is laminated and finished in a large diameter piling pillar P1, additional grouting is performed between the large diameter piling pillar P1 and the perforated ground to reinforce the principal surface friction of the piling pillar P1. . At this time, as shown in Figure 1 (c), if the construction of the unit block 100 jagged side irregularities between each other can improve the principal surface friction of the pile pillar (P1), the side irregularities are different unit blocks ( It may be formed by custom coupling 100 or by fitting the unit blocks 100 of the same cross-sectional size shifted. Of course, if the unit block 100 is laminated construction is completed, the pile pillar (P1) is completed, the foundation (F) is constructed thereon.

As shown in FIG. 2, the stacking method by custom coupling may induce a custom coupling between the unit blocks 100 in a state in which the rubber ring 121 is inserted into the coupling protrusion 120 of the unit block 100. However, this is to induce a buffer action by the rubber ring 121 together with the close coupling between the unit blocks 100.

The unit block 100 is preferably produced so that the lifting hook 130 for hanging the hook of the crane on the upper surface for lifting by the crane, but in this case the lower surface of the unit block 100 Receiving groove 140 is to be accommodated, both ring 130 is to be formed. Only then, the upper and lower surfaces of the neighboring unit blocks 100 can be laminated to be in contact with each other without being disturbed by the bilateral ring 130.

3 to 6 is another embodiment of the laminated construction method of the large-diameter pillar according to the present invention, a plurality of unit blocks 200 are piled connected by a steel wire or steel rod 220 is tension-fixed one pile pillar (P1) ), It shows the example of construction as a pillar pillar (P2), building pillar (P3).

As shown in the drawing, the unit block 200 is manufactured to have a through hole 210 penetrating the upper and lower surfaces thereof, and is inserted into the through hole 210 by a plurality of steel wires or steel rods 220 that are tension-fixed. The unit block 200 is closely stacked and laminated. In this case, after fixing the steel wire or the steel bar 220, the steel wire or the steel bar 220 may be constrained by the grout through the through hole 210 of the unit block in which the steel wire or the steel bar 220 is fitted. The unit blocks 200 are tightly connected to each other according to the tight connection by the steel wires or the steel rods 220, so that the load transmission is made between the unit blocks 200, and thus the plurality of unit blocks 200 are stacked in one large diameter column. Will behave.

In particular, the stacking method by the close connection is a large diameter column that is further strengthened by post tension because the steel wire or steel rod 220 is tightened after the tension is settled in the unit block 200 while applying a post tension soon Allows for construction Of course, the lamination method by the close connection can also be applied to the lamination method by the custom coupling described above. That is, the unit block 200 is manufactured so that the coupling groove or the coupling protrusion is formed on the upper and lower surfaces together with the through hole 210, and the unit block 200 is a steel wire together with the custom coupling by the coupling groove and the coupling protrusion. Or it is to induce a close connection by the steel bar (220).

The through hole 210 formed in the unit block 200 to fit the steel wire or the steel rod 220 is formed in the plane as shown in FIG. 4 (a) as well as the unit block 200 as shown in FIG. 4 (b). It may be formed to extend from the side. However, if formed as shown in FIG. 4 (b), since the steel wire or the steel rod 220 may be guided and fitted from the side of the unit block 200, the connection work between the unit blocks by the steel wire or the steel rod 220 is much easier. Lose. In addition, in order to lift the unit block 200 with a crane, the unit block 200 may be manufactured so that the lifting ring 230 for hanging the hook of the crane is fixed, Figure 4 (a) is the double ring 230 unit 4 (b) shows an example in which the double ring 230 is fixed to the side of the hollow part in the hollow unit block 200. Of course, if the double ring 230 is fixed to the upper surface of the unit block 200, as shown in Figure 4 (a) the unit block 200 has a receiving groove 240 is received in the lower ring 230 on its lower surface It should be manufactured to be formed, but if in Figure 4 (b) and both ring 230 is fixed to the side of the hollow portion of the unit block 200 there is no need to form a separate receiving groove. In particular, when using the hollow unit block 200 as shown in Figure 4 (b) it is possible to reduce the weight of the unit block will be much more advantageous to transport and lifting, but in some cases reinforcing reinforcement or concrete in the hollow portion of the unit block Additional work, such as pouring or grouting, can be carried out. In this case, the hollow unit block will function as a formwork for site construction, and the bilateral ring 230 on the hollow side will contribute to the integration of the unit block and grouting material. Will be.

3 shows an example in which the unit block 200 is laminated and completed with a large-diameter pile pillar P1. When constructing with a large-diameter pile column P1, as shown in FIG. 3 (c), additional grouting (G) is performed between the large-diameter pile column P1 and the perforated ground to reinforce the principal surface friction of the pile column P1. have. At this time, if the construction of the unit blocks 200 jagged side irregularities between each other can improve the principal surface friction of the pile pillar (P1), the side irregularities are formed by custom coupling unit blocks 200 having different cross-sectional size Alternatively, the unit blocks 200 having the same cross-sectional size may be formed by shifting the fittings. When the unit block 200 is laminated and completed, and the pile pillar P1 is completed, the foundation F is constructed thereon. As shown in FIGS. 3 (b) and 3 (c), the unit blocks 200 are in close contact with each other. When the end of the steel wire or steel rod 220 used for connection coupling is settled by the fixing unit in a state protruding more than the top unit block 200, the fixing end of the steel wire or steel rod 220 and the pile pillar (P1) and Contributes to the integration of foundation (F).

5 shows an example in which the unit block 200 is laminated and completed with a large diameter pier pillar (P2). Since the beams (B) and the slab (S) connecting the piers (P1) are constructed on the piers (P1), in the present invention in consideration of this, in the piers (P2) completed by stacking the unit block 200 It is proposed to adopt a unit block located directly below the junction with the beam B to be made larger than other unit blocks. Since the unit block just below the junction with the beam (B) is protruding, a mounting jaw (250) on which a beam (PC beam, steel frame beam, half PC beam, etc.) can be mounted is naturally provided. It is possible to easily proceed with the construction of the beam by mounting on the mounting jaw (250). However, it is desirable to build the concrete at the junction of the piers (P2) and the beams (B) to be integrated. At this time, when the beams (B) installed between the piers (P2) are connected to each other by connecting rods (R), It will be advantageous to ensure structural stability because the stress transfer is smooth. The connecting rod (R) is buried in the field concrete placed at the junction of the pier pillar (P2) and the beam (B) together with the fixing end of the steel wire or steel rod 220 of the pier pillar (P2) and the pier pillar (P2) and It also contributes to the integration of the beam B. On-site concrete, which is poured at the junction of the piers P2 and the beams B, may proceed with the construction of the slab S of the bridge.

FIG. 6 shows an example in which the unit blocks 200 are laminated and completed with a large-diameter building pillar P3. Since the beam (B) and the slab (S) is bonded to the building pillar (P3), in consideration of this, in the present invention, as shown in Figure 6 (a) is located directly below the junction with the beam (B) in the building pillar (P3) The unit block is adopted to be made larger than the other unit block so that the mounting jaw 250 is provided, or instead of the unit block located at the junction with the beam B in the building pillar P3 as shown in FIG. It is proposed to install the steel bracket (300). Figure 6 (a) shows an example of fixing the beam (B) to the side of the unit block facing the mounting jaw 230 of the unit block while adjusting the horizontal level using the non-contraction mortar (M), Figure 6 (b) shows an example in which the steel bracket B is bolted to the steel bracket 300 of the building pillar (of course, welding is also possible). In particular, the steel bracket 300 is formed in the same frame as the cross-section of the steel pillars, as well as the cross section of the steel golbo, as shown in FIG. It is okay if. For example, if the H-type cheolgolbo is constructed, the steel bracket 300 may also be prepared in the H-shaped cross section to be configured so that the flange and the web can be joined at the same time, as well as to prepare a steel bracket with a plate size larger than the unit block H By arranging at the position corresponding to the upper and lower flanges of the girder steel beam can be configured so that only the flange joint is made. Meanwhile, FIG. 6 shows an example in which the entire building pillar P3 including the junction with the beam B is completed by laminating unit blocks (or steel brackets), but the junction with the beam is constructed in the piers pillar of FIG. 5. Similarly, it can be configured to be integrated with the site concrete, while only the interlayer portion of the building pillar can be completed by lamination by unit blocks.

FIG. 7 shows an example in which the construction method of the large-diameter building pillar as shown in FIG. 6 (a) is applied to the top-down method. The top-down method according to the present invention is almost the same as the normal top-down method, except that the unit block 200 is completed when the building pillar P3 is constructed by drilling the ground after constructing the retaining wall. There is a difference in that. In other words, after constructing the wall and drilling the pillar position, proceed with the building pillar construction step by stacking the unit blocks 200 while closely connecting the steel wire or steel rod 220 to the drilling hole (H), and then building pillars. The construction of the frame from top to bottom while repeating the excavation step of digging between (P3) and the building pillar (P3) and the beam construction step of constructing the beam between the building pillar (P3) and the building pillar (P3).

Building pillar construction step should proceed to install the unit block to form the mounting jaw 250 in the position corresponding to the junction with the beam in consideration of the bonding with the beam or to install the steel bracket 300, The foundation pillars should be formed by grouting the lower portion of the building pillar P3 so that the building pillar P3 can be stably settled on the ground.

On the other hand, in the case of the unit block installed at the bottom of the building pillar (P3) it is preferable to adopt a large cross-sectional size so that sufficient end support force can be exerted, and further integrated with the bottom floor and the building pillar finished with a mat basis In order to enhance the properties, it is preferable that the unit blocks located at the junction with the mat base also adopt various cross-sectional sizes so that the unit blocks themselves can serve as wedges (see FIG. 7 (f)).

Although the present invention has been described in detail with reference to the described embodiments, those skilled in the art to which the present invention pertains will be capable of various substitutions, additions and modifications without departing from the technical spirit described above. It is to be understood that such modified embodiments also fall within the protection scope of the present invention as defined by the appended claims below.

100, 200: unit block
110: coupling groove
120: engaging projection
210: through hole
220: liner or rod
130, 230: double ring
140, 240: accommodation groove
250: mounting jaw
300: steel bracket
H: drill hole
F: base
P1, P2, P3: pillar
M: non-shrink mortar
B: Bo
S: slab

Claims (11)

As a method of constructing a pile pillar (P1) to be constructed in the ground as a large diameter pillar,
While constructing a plurality of unit blocks 100 made of precast concrete having a unit length up and down while constructing one large diameter column, the unit block 100 has a coupling groove 110 or a coupling protrusion 120 on the upper and lower surfaces thereof. ) Is formed to form a unit block 100, the vertical stacking construction method of the large diameter pillar, characterized in that the laminated construction by combining the coupling groove 110 and each other by the coupling protrusion 120. In claim 1,
The unit block 100 having the coupling protrusion 120 is constructed such that the rubber ring 121 is fitted to the coupling protrusion 120 so as to be mutually combined with the unit block 100 in which the coupling groove 110 is formed. Vertical stacking method for large diameter columns. As a method of constructing a pile pillar (P1), a pier pillar (P2) or a building pillar (P3) as a large diameter column,
While constructing a plurality of unit blocks 200 made of precast concrete of unit length up and down while constructing one large diameter pillar, the unit block 200 is formed so that the through hole 210 penetrating the upper and lower surfaces thereof. Up and down stacking of large-diameter pillars, which are manufactured by being inserted into the through-holes 210 of a plurality of unit blocks at the same time and laminated by tightly connecting the unit blocks 200 to each other by vertical steel wires or steel rods 220 that are tightly fixed. Formula construction method. In claim 3,
The unit block 200 has a coupling groove or a coupling protrusion formed on the upper and lower surfaces,
The unit block 200, the vertical stacking construction method of the large diameter pillar characterized in that the laminated construction by combining the coupling groove and the coupling projection between each other. The method of claim 3 or 4,
The unit block 200 is a hollow member having a hollow portion in the center of the vertically laminated construction method of the large diameter pillars, characterized in that the bilateral ring 230 is fixed to the hook of the crane on the side of the hollow portion. In claim 5,
After stacking a plurality of unit blocks 200 while being closely connected to each other by steel wires or steel rods 220, reinforcing reinforcing bars or placing concrete or grouting the hollows in the center of the unit block. Top and bottom laminated construction method. The method according to any one of claims 1 to 4,
Laminating and constructing a plurality of unit blocks (100, 200) to form a jagged side irregularities between the unit blocks,
The vertically stacked construction method of a large diameter pillar, characterized in that the grouting (G) on the outer peripheral surface of the unit blocks laminated to form the side irregularities. As a method of constructing the frame of the structure while applying the vertical stacking method of the large diameter pillar of claim 3,
Column construction step of constructing a large diameter piers pillar (P2) or building pillars (P3) by the vertical stacking method of the large diameter pillar of claim 3;
Comprising the beam construction step of constructing while bonding the beam (B) to the pier pillar (P2) or building pillar (P3);
In the column construction step, the mounting block 250 is connected to the beam by adopting that the unit block immediately below the junction with the beam B in the pier pillar P2 or the building pillar P3 is made larger than the other unit blocks. To be prepared,
The beam construction step is a skeleton construction method of the structure, characterized in that made while mounting the beam (B) on the mounting jaw (250). As a method of constructing the frame of the structure while applying the vertical stacking method of the large diameter pillar of claim 3,
Column construction step of constructing a large diameter piers pillar (P2) or building pillars (P3) by the vertical stacking method of the large diameter pillar of claim 3;
Comprising the construction step while joining the cheolgolbo (B) to the pier pillar (P2) or building pillar (P3);
The pillar construction step is made by installing the steel bracket 300 in place of the unit block located at the junction with the beam (B) in the pier pillar (P2) or building pillar (P3),
The beam construction step is a skeleton construction method of the structure, characterized in that made while welding or bolted steel cheolgolbo (B) to the steel bracket (300). The method of claim 8 or 9,
The slab construction step of constructing the slab (S) while placing the site concrete over the pier pillar (P2) or building pillar (P3) and the beam (B) after the beam construction step;
The slab construction step is a frame construction method of the structure characterized in that made while buying the fixing end of the steel wire or steel rod 220 in close contact between the unit blocks in the pillar construction step to the site concrete. The method of claim 8 or 9,
The pillar construction step proceeds to the step of constructing the building pillar (P3) by drilling the ground after the construction of the earthen wall,
After the pillar construction step proceeds the excavation step of digging between the building pillar (P3) and the building pillar (P3),
After the excavation step proceeds to the construction step,
Frame construction method of the structure characterized in that performed by the top-down method by repeatedly proceeding the excavation step and the construction step.

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