KR100728266B1 - A matrix and structure of wire connection - Google Patents

Abstract

A connecting structure of sheeting and a tension wire at non-strut underground retaining wall form construction is provided to construct a non-strut underground retaining wall form by erecting a form without installing a support in a narrow underground space, to make a form stand concrete pressure by applying compressive force and tensile force on a form simultaneously and to recycle a tension wire easily by separating a tension wire easily after placing concrete. The invention relates to a connecting structure of sheeting and a tension wire at non-strut underground retaining wall form construction for preventing a form panel from separating to the outside by impact force caused by placing concrete by applying tensile force between sheeting and a form panel, wherein a compression support(10) is supported between sheeting and a form panel to support the compressive force generated on the form panel when placing concrete, a tension wire(40) is fixed to a wire anchorage(43) and connected with an anchor bolt(20) fixed to the sheeting by a coupler(30) to apply tensile force toward the sheeting, and a rotary separator(50) is inserted to an insertion groove of the wire anchorage to separate the tension wire easily to be recyclable.

Description

Soil and tensile wire connection structure of unsupported underground retaining wall formwork {A matrix and structure of wire connection}

Figure 1 is a perspective view showing a stateless construction retaining wall formwork of the present invention.

Figure 2 is an exploded perspective view showing the structure of the soil retaining and tension wire connection of the unsupported underground retaining wall formwork of the present invention.

Figure 3 is an exploded perspective view showing the soil barrier and the tension wire connection structure of the unsupported underground retaining wall formwork of the present invention from another direction.

Figure 4 is a cross-sectional view showing the soil structure and the tension wire connection structure of the unsupported underground retaining wall formwork of the present invention.

5 is a cross-sectional view showing a state in which the tension wire is dismantled in the soil barrier and tension wire connection structure of the unsupported underground retaining wall formwork of the present invention.

Figure 6 is a partially cutaway perspective view showing the installation state of the earth block and tension wire connection structure of the unsupported underground retaining wall formwork of the present invention.

FIG. 7 is a partially cutaway perspective view illustrating a state in which a tension wire is dismantled in a soil barrier and a tension wire connection structure of an unsupported underground retaining wall formwork of the present invention; FIG.

FIG. 8 is an enlarged view of a portion A of FIG. 6 illustrating a structure of connecting the retainer and the tension wire of the unsupported underground retaining wall formwork of the present invention; FIG.

9 is an enlarged view of part B of FIG. 7 showing the structure of the soil barrier and the tension wire of the unsupported underground retaining wall formwork of the present invention.

 <Brief description of symbols for the main parts of the drawings>

1: earth shield 2: formwork panel

3: wire hole 4: joist

5: yoke 6: hall

10: compression support 11: round tube

12: hall hole 13: support plate

20: anchor bolt 21: bolt portion

30: coupler 31: anchor bolt hole

32: wire fastening hole 40: tension wire

42: bolt portion 43: wire fixing opening

44: bolt portion 45: insertion groove

50: rotational release 51: round tube

52: insertion end 53: incision

54: handle 60: fastener

The present invention relates to a structure of the earth retaining wall formwork and the retaining wire connection structure, more specifically, a non-holding that can save the space when installing the formwork on the underground retaining wall, and can fix the formwork panel to the retaining wall as a solid support The present invention relates to the structure of the earth retaining wall formwork and the connecting structure of the retaining wire and tension wire.

In order to construct a structure in a concrete structure or civil engineering, a foundation layer that is the basis of the structure is constructed. At this time, the ground is excavated and a retaining wall is formed around the outer wall.

Such a retaining wall is a wall structure that prevents soil from collapsing due to the resistance of earth pressure. It is an anti-earth pressure structure that maintains stability by using the weight of the retaining wall itself and the frictional force of the bottom surface, and the earth pressure acting on the wall and the load on the soil, It is designed to ensure the stability of the structural members and the stability of the entire wall to collapse or slip, subject to the bearing capacity and the bearing capacity of the ground.

Therefore, in order to install the wall in the basement, the 'H' beam is placed around the width of the structure as a support and fastened to the 'H' beam and the 'H' beam with support, or the concrete pile is formed to form a wall. Thereby forming a soil wall that prevents soil collapse.

And by forming a formwork to maintain a constant distance with the earth wall, by placing the concrete with reinforcing bar between them, the earth resistance retaining wall is configured.

At this time, as a means for fixing the formwork and the earth wall at a predetermined interval, the fastening member fixed to the wood or concrete pile, etc., which constitutes the earth wall, and the iron wire or elongated spacing bolt to fix the formwork formed at a predetermined interval by being fastened to the fastening member. By fastening the formwork to be fixed at a predetermined distance.

This operation is very difficult and complicated, and if the fastening means are not strong, the form is collapsed or the mold cannot be overcome due to the pressure and weight of the concrete mortar being injected, especially when the concrete is placed between the formwork and the earth wall. Due to the pressure of the fastening member fixing the formwork and the earth wall, the formwork is pushed outwards, the formed form is damaged, or the thickness of the earth resistance retaining wall has a problem that the occurrence of a batch phenomenon occurs.

This work is performed between many rebars in a narrow space, so it is difficult to fasten and workability is low.

Therefore, as a fastening member for fixing the conventional formwork to the earth wall, the pre-registered Utility Model No. 20-0162028 formwork fixture for earth wall was devised.

Formwork fasteners form a flat and pointed hook, such as an arrowhead configured to form a fastening plate perforated with a plurality of adjustment holes, and to penetrate between the long connecting rods and the props of the lumber that form the earth wall at the end.

Therefore, the locking portion of the arrowhead is inserted between the crutches, and the long gap retaining rods are fastened to form holes in the exposed pores of the fastening plate.

At this time, through the fixing pins through the fastening hole formed in the gap retaining rod and the adjustment hole of the fastening plate to be fixed by fastening with fastening pins to maintain the fastening state. In such a configuration, there is a disadvantage in that a worker inserts a catch between the crutches to fix the crutches.

The current method used in the installation of underground retaining walls is the construction of underground retaining walls with Eurofoam or plywood support system. However, this method has a problem of low workability in the work process at the time of dismantling the installation and also in the narrow space in the basement.

In the domestic construction market, about 30% of the total construction cost is underground construction, and the underground retaining wall construction is estimated at about 10% during this underground construction. Therefore, a method and structure to increase the efficiency of the construction are needed.

The present invention has been made in order to solve the problems as described above, do not install the pillar in a narrow underground space, to form the formwork to form the unsupported underground retaining wall formwork, and to act on the formwork at the same time the compressive force and tensile force The purpose of the present invention is to provide a structure for connecting the retainer and the tension wire in the unsupported underground retaining wall formwork that can remove the tension wire after the concrete is placed in the structure that can withstand the pressure of the concrete.

The present invention has an object to be configured to be able to remove the tension wire to be fixed between the earthen board and the formwork to act as a tensile force after pouring concrete.

In the present invention, in order to achieve the object described above, in the connection structure in which the tension wire for connecting the earthenware of the basement retaining wall and the formwork for concrete placement is fixed through the joist and yoke at the outside of the formwork panel, anchor bolts to the earthenware One end of the buried and fixed, fixed to the compression support so that the exposed bolt portion of the anchor bolt between the earth and the formwork panel, the anchor bolt and the tension wire is connected by a coupler in the compression support, and on one side of the tension wire A wire fixing hole with a bolt part is formed, and a plurality of insertion grooves are formed in the wire fixing hole, and a bolt part is formed at the other end of the tension wire to be fixed to the nut which is a fastener from the outside of the yoke, and the tension wire has a hollow rotating release hole on the outside. It is installed, but the rotary release port is formed at one end of the circular tube divided by the incision is formed It is inserted into the insertion groove of the fixing fixture, characterized in that the other end of the rotary release port is formed with a handle with a projection around the support, the support plate is fixed to both ends of the circular tube, and the rotary release and inside the tube hole of the circular tube The anchor bolt and the tension wire are inserted and fixed. The coupler has an anchor bolt hole formed at one end of the cylindrical body, and the bolt part of the anchor bolt is inserted and screwed together. A wire fastening hole is formed at the other end of the coupler to insert the bolt part of the tension wire. It provides a structure for connecting the retainer and the tension wire of the unsupported underground retaining wall formwork, characterized in that the screw is coupled.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

The terms or words used in the present specification and claims should not be interpreted as being limited to the ordinary or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best explain the invention of their own. Based on the principle, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

The present invention relates to a tension wire connection structure that allows a tension force between the earth block 1 and the formwork panel 2 to prevent the formwork panel 2 from escaping to the outside due to an impact generated during concrete placing. After the concrete is laid, the tension wire 40 can be separated and recycled, and the compression support 10 is provided with the soil support 1 and the formwork panel to support the compressive force generated in the formwork panel 2 during concrete placement. (2) is supported, and the tension wire (40) to the tension panel (2) to act as a tension force toward the earth (1), the wire fixing hole 43 is formed in the tension wire (40) earth soil (1) It is connected to the anchor bolt 20 and the coupler 30 fixed to the tension wire 40 can be easily removed by the rotational release port 50 to the main configuration that can be used after disassembly again after pouring concretedo.

In the present invention, a plurality of joists (4) and the yoke (5) is installed on the outer surface of the formwork panel (2), the yoke (5) and the formwork panel (2) is a tension wire 40 and rotational release port 50 Holes 6 and wire holes 3 through which are formed are respectively formed.

The soil barrier (1) is divided into a column heating soil and a soil cement soil, etc. In the case of the soil heating soil, after the construction of the soil barrier is completed, the H-Pile in the soil membrane is exposed and the tension wire is attached to the exposed flange portion of the H-Pile. Stud coupler for field welding or fixed by welding the stud bolt, it can be connected to the tension wire.

In the case of the small cement soil block, one end of the anchor bolt 20 is embedded and fixed in the soil block 1, and then the coupler 30 is connected to the bolt, and the tension wire 40 is opposite to the coupler 30. Screw it together.

Here, the tension wire 40 is fixed to the wire anchoring port 43, the wire anchoring port 43 is fixed to the coupler 30. The tension wire 40 can be used in the form of wire and rod-shaped, both of which are included in the scope of the present invention. However, although the rod-shaped tension wire 40 is integrally formed with a bolt portion 42 at the end, the wire shape is formed by separately combining the wire and the rod-shaped bolt portion at the end. In general, the joining method is formed by connecting the bolts to form a ring.

The coupler 30 has an anchor bolt hole 31 formed at one end of the cylindrical body so that the bolt portion 21 of the anchor bolt 20 is inserted and screwed thereto, and a wire fastening hole 32 is formed at the other end of the coupler 30. The bolt portion 44 of the tension wire 40 is inserted and screwed.

Compression support 10 is a support plate 13 is fixed to both ends of the circular tube 11, the rotational release port 50 and the anchor bolt 20 and the tension wire in the tube hole 12 of the circular tube 11 ( 40) is inserted and fixed. The compression support 10 is fixed between the retainer 1 and the formwork panel 2 so that the exposed bolt portion 21 of the anchor bolt 20 is inserted into the coupler 30 from the inside of the compression support 10. The anchor bolt 20 and the tension wire 40 is connected.

A wire fixing hole 43 having a bolt portion 44 is formed on one side of the tension wire 40, and a plurality of insertion grooves 45 are formed on the opposite side of the ball-to-hole 44 of the wire fixing hole 43.

A bolt portion 42 is formed at the other end of the tension wire 40 to be fixed to the nut that is the fastener 60 from the outside of the yoke 5, and the tension wire 40 has a hollow rotational release port 50 on the outside thereof. It is installed, but the rotational release port 50 is inserted into the insertion groove 45 of the wire fixing port 43 is formed by the insertion end 52 is divided by the incision 53 at one end of the circular tube (51). The cutout 53 is formed by the number of insertion grooves 45 formed in the wire fixing opening 43.

The other end of the rotary release port 50 is formed with a handle 54 with a protrusion on the circumference, and when the rotary release port 50 is rotated, the wire fixing port 43 rotates, and the bolt part 44 connects the wire of the coupler 30. It is disengaged from the hole 32 and released. Therefore, it may be reused by removing the rotational release port 50 and the tension wire 40.

As described above, the present invention has the effect of installing the formwork in a narrow underground space, without the support pillars to form the unsupported underground retaining wall formwork, and the formwork to withstand the pressure of the concrete at the same time acting on the formwork compressive force and tensile force It has the effect of providing the structure, and can be reused by removing the tension wire after the concrete is poured.

In addition, there is an effect that can be easily removed by the rotational detachment of the tension wire to the tension between the earth and the formwork to act as a tensile force.

Claims (2)

In the connection structure in which the tension wire connecting the retaining wall of the underground retaining wall and the formwork for concrete placing is fixed through the joist and yoke at the outside of the formwork panel, One end of the anchor bolt 20 is embedded and fixed to the earth block 1, and the compression support 10 is inserted into the earth block 1 and the formwork panel 2 so that the exposed bolt portion 21 of the anchor bolt 20 is inserted. Fixed between the anchor bolt 20 and the tension wire 40 is connected to the coupler 30 in the interior of the compression support 10, the wire fixing hole having a bolt portion 44 on one side of the tension wire 40 A 43 is formed, and a plurality of insertion grooves 45 are formed in the wire fixing hole 43, and a bolt part 42 is formed at the other end of the tension wire 40, so that the fastener 60 is outside the yoke 5. Is fixed to the nut, the tension wire 40 is provided with a hollow rotary release port 50 on the outside, the rotary release port 50 is divided by an incision 53 at one end of the circular tube 51 Inserted end 52 is formed is inserted into the insertion groove 45 of the wire fixing port 43, the other end of the rotary release port 50 is characterized in that the handle 54 is formed with a protrusion on the periphery Retaining the tensile wire connection structure of the ground retaining wall formwork construction. According to claim 1, Compression support 10 is a support plate 13 is fixed to both ends of the circular tube 11, the rotational release port 50 and the anchor bolt in the tube hole 12 of the circular tube 11 ( 20 and the tension wire 40 is inserted and fixed, the coupler 30 is an anchor bolt hole 31 is formed at one end of the cylindrical body is inserted into the bolt portion 21 of the anchor bolt 20 is screwed, The other end of the coupler 30 has a wire fastening hole 32 is formed, the bolt portion 44 of the tension wire 40 is inserted into the screw joint and earthwork and tension wire connection structure of the unsupported underground retaining wall formwork .

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