KR102371555B1 - Hollow core slab joint wall construction structure and construction method thereof - Google Patents

Abstract

According to the present invention, provided is a hollow slab junction wall construction structure in which a wall is constructed by joining hollow slabs having a plurality of hollow parts therein. The hollow slab junction wall construction structure comprises: a lower buried reinforcing bar disposed so that the lower half is buried in the ground and the upper half is exposed from the ground; a hollow slab having a plurality of hollow parts formed therein; lower concrete poured in a lower portion of the hollow part; a filler filled in a middle portion of the hollow part; an upper connecting reinforcing bar disposed so that the lower half is vertically disposed on the upper end of the hollow part and the upper half is exposed above the hollow part; and upper concrete poured on an upper portion of the hollow part.

Description

Hollow core slab joint wall construction structure and construction method thereof

The present invention relates to a hollow slab jointed wall construction structure and a construction method thereof, and more particularly, to a hollow slab jointed wall construction structure and a method for constructing a wall by erecting a hollow slab and joining and connecting it.

Structures are mainly formed by combining vertical materials such as columns and walls and horizontal materials such as beams and slabs. The methods of constructing structures include the RC (Reinforced Concrete) structure method, which forms a structure by pouring directly on site, and the PC (Reinforced Concrete) structure method, which is manufactured, transported, and assembled at the site to form a building by pouring the joint and part of the floor. Precast Concrete: It is classified as a structural method.

The RC method forms a building by separate pouring for each area and floor, but the PC method is constructed by dividing and manufacturing each member such as columns, beams, slabs, and walls.

PC members such as pillars, beams, slabs, and walls have their respective structural characteristics and shapes optimized for their location and use, making it very difficult to cross use and there are many issues to be solved, making it difficult to approach.

In particular, in order to suit the purpose of the structure, the shape of reinforcement inside the member, the method of connecting the reinforcing bars at the joint, and the shape of the member should be considered.

As a conventional technique, for example, in the case of a PC wall, it is horizontally joined by connecting it to a solid (full) wall board using mechanical joints such as sleeves, welding, and bolts. For vertical joining of PC walls, it is common to stack dowel bars and hoop reinforcing bars that are embedded during manufacturing and pour the joint surface. In particular, when the wall thickness is 300-400mm or more, it is very difficult to connect the reinforcing bars and salvage the members to produce a full wall. Therefore, it has become customary to apply the double wall method, which is a method of separately manufacturing and assembling a wall into an inner surface (in-skin) and an outer surface (out-skin) and pouring the central part and vertical joint surface on site. there is.

However, the double wall undergoes a complicated process in which the inskin and outskin must be prefabricated, inverted, connected with tie bars, etc., and the attachment of new and old concrete must also be considered. This process leads to an increase in the number of manpower, equipment, construction period, and construction cost.

On the other hand, a hollow core slab used for a slab purpose is, for example, a member that is manufactured in an automated line of a factory that is 1.2 m wide and 200 m wide and cut to the required length. Low manufacturing cost is the biggest advantage. .

If such a slab can be used as a wall, there is a huge advantage.

However, for such a hollow slab, the internal reinforcement according to the structural characteristics, the closed room treatment method according to the hollow, the method conversion from the horizontal to the vertical lifting method, the joint and the joint surface reinforcement method, etc. must be made safe and constructable.

Registered Patent Publication No. 10-1776129 "Precast double structure for combined use of slab and wall and construction method of double structure PC wall using the same"

An object of the present invention is to provide a hollow slab joint wall construction structure and a construction method thereof, which can very easily construct a solid wall by erecting a hollow slab and joining and connecting it.

The hollow slab joint wall construction structure of the present invention for achieving the above object is a hollow slab joint wall construction structure in which a wall is constructed by joining hollow slabs having a plurality of hollow parts therein. a lower buried reinforcing bar disposed to be exposed from the ground; a hollow slab having a plurality of hollow parts formed therein; a lower concrete poured in the lower part of the hollow part; a filler to be filled in the middle of the hollow part; an upper connecting reinforcing bar disposed so that the lower half is vertically disposed on the upper end of the hollow part and the upper half is exposed above the hollow part; And it includes an upper concrete poured on the upper part of the hollow part.

In the hollow slab, two pairs of strands may be embedded on one side and the other side on both sides of the plurality of hollow parts.

It may further include a lower spiral reinforcing bar disposed around the upper half of the lower buried reinforcing bar, and an upper spiral reinforcing bar disposed around the lower half of the upper connecting reinforcing bar.

A lower horizontal connecting reinforcing bar coupled to the lower end of the lower spiral reinforcing bar and arranged to connect a plurality of hollow slabs in the horizontal direction to be embedded in the lower concrete, and a side surface of the upper connecting reinforcing bar coupled to the plurality of hollow slabs in the horizontal direction It may further include an upper horizontal reinforcing bar disposed to connect.

The hollow slab is formed through a lower side on one side of the lower portion and has a lower pouring confirmation hole through which the concrete to be poured can be confirmed, and a filler filling hole that is formed through the lower side of the middle part of the hollow part filled with the filler to fill the filler; , It is formed through the upper both sides of the lifting bolt can be inserted, it may further include a filler confirmation and lifting holes that can confirm the filling of the filler.

The filler may be an insulating material injected by pressing through the filler filling hole.

It may further include a hollow part pouring barrier inserted into the upper inner peripheral surface of the hollow part on the filler material.

The joint between the side surfaces of the two hollow slabs includes a lower buried reinforcing bar in which the lower half is buried in the ground and the upper half is exposed from the ground, and an upper connection in which the lower half is disposed vertically at the upper end of the hollow part and the upper half is exposed above the hollow part A reinforcing bar, a lap splicing reinforcing bar disposed to overlap between the upper side of the lower buried reinforcing bar and the lower side of the upper connecting reinforcing bar, and a joint spiral reinforcing bar disposed to surround the lower buried reinforcing bar, the upper connecting reinforcing bar, and the lap splicing reinforcing bar And, it may include a lower concrete poured under the joint portion, and joint portion concrete poured on the lower concrete portion.

The hollow slab jointed wall construction method of the present invention is a hollow slab jointed wall construction method in which a wall is constructed by joining hollow slabs having a plurality of hollow parts therein. Installing a pedestal between the plurality of lower buried reinforcing bars; lifting the hollow slab and erecting the hollow slab so that the upper half of the lower buried reinforcing bar is disposed in the hollow portion; Installing a square material between the ground and the lower end of the hollow slab and pouring lower concrete into the lower part of the hollow part; Inserting and mounting a hollow part pouring barrier on the inner peripheral surface of the hollow part; filling the middle part of the hollow part with a filler on the lower concrete; disposing an upper connecting reinforcing bar so that the lower half is vertically disposed on the upper end of the hollow part and the upper half is exposed above the hollow part; and pouring the upper concrete into the upper part of the hollow part so that the lower half of the upper connecting reinforcing bar is buried.

After the step of installing the pedestal, disposing a lower spiral reinforcing bar around the upper half of the lower buried reinforcing bar, and placing a lower horizontal connecting reinforcing bar at the lower end of the lower spiral reinforcing bar to connect a plurality of hollow slabs in the horizontal direction. may include

After the step of erecting the hollow slab, the method may further include supporting the hollow slab by coupling a brace to a side surface of the hollow slab.

After the upper connecting reinforcing bar arrangement step, the method may further include disposing an upper spiral reinforcing bar around the lower half of the upper connecting reinforcing bar.

After the upper concrete pouring step, the step of coupling the upper horizontal reinforcing bar to the side of the upper connecting bar to connect the plurality of hollow slabs in the horizontal direction may be further included.

In the lower concrete pouring step, the lower concrete can be checked through the lower pouring confirmation hole formed through the lower one side of the hollow slab.

In the step of erecting the hollow slab, the hollow slab is lifted by checking the filler formed through the upper both sides of the hollow part and inserting a lifting bolt into the lifting hole, and in the filling step, the filler formed through the lower side of the hollow part is filled The filler is filled through the hole, and the filling of the filler can be confirmed through the confirmation of the filler and the lifting hole.

After the step of erecting the hollow slab, a lower buried reinforcing bar is placed at the lower end at the joint between the sides of the two hollow slabs, an upper connecting rebar is placed at the upper end, and the upper side of the lower buried reinforcing bar and the lower end of the upper connecting reinforcing bar Placing lap joint reinforcing bars to overlap between the side surfaces, disposing joint spiral reinforcing bars to surround the lower buried reinforcing bars, upper connecting reinforcing bars, and lap splicing reinforcing bars; pouring lower concrete under the joint; It may further include the step of pouring joint concrete on the lower concrete.

According to the hollow slab joint wall construction structure of the present invention and the construction method thereof, a solid wall can be constructed very easily by erecting the hollow slab and joining and connecting it.

1 is a longitudinal cross-sectional view showing a hollow slab joint wall construction structure according to an embodiment of the present invention.
2 is a plan cross-sectional view showing a hollow slab according to an embodiment of the present invention.
3 is a plan sectional view showing a wall construction structure including two hollow slab joints.
4 is a longitudinal cross-sectional view showing a wall construction structure including two hollow slab joints.
5 is a view showing two methods of lifting the hollow slab in the horizontal direction.
6 is a view showing a method of lifting the hollow slab in the vertical direction.
7 to 13 are views sequentially showing a hollow slab joint wall construction method.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The terms used in the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present invention, terms such as 'comprising' or 'having' are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, and one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this case, it should be noted that in the accompanying drawings, the same components are denoted by the same reference numerals as much as possible. In addition, detailed descriptions of well-known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some components are exaggerated, omitted, or schematically illustrated in the accompanying drawings.

1 is a longitudinal cross-sectional view showing a hollow slab joint wall construction structure according to an embodiment of the present invention, FIG. 2 is a plan cross-sectional view showing a hollow slab according to an embodiment of the present invention, and FIG. 3 is two hollow slab joints It is a plan sectional view showing a wall construction structure including a part, and FIG. 4 is a longitudinal sectional view showing a wall construction structure including two hollow slab joints.

The present invention relates to a structure and method for constructing a wall by successively joining a plurality of hollow core slabs, which are usually manufactured for slab use.

First, as shown in FIG. 2 , the hollow slab 100 is a PC (Precast Concrete) semi-finished product in which a plurality of hollow parts 120 are formed in the longitudinal direction. 3 to 10 or more hollow parts 120 may be formed inside the rectangular body part 110 of a predetermined thickness depending on the width and thickness of the body part 110 . The cross-sectional shape of the hollow part 120 may be formed in various ways, such as a polygon such as a circle, an oval, an octagon, and a shape in which the corners of the octagon are rounded.

The main body 110 may be formed with a pair of ribs 130 extending to both sides from the front side and the rear side of both sides. The pair of ribs 130 may include a first rib 132 extending from front sides of both sides and a second rib 134 extending from rear sides of both sides. The extension length of the first rib 132 may be greater than that of the second rib 134 .

In the hollow slab 100 , a plurality of reinforcing bars 140 and 142 may be embedded in the body portion 110 . A plurality of reinforcing bars may be disposed on both sides of the front and rear of each hollow portion (120). The plurality of reinforcing bars may be arranged in a longitudinal direction and composed of a strand tensioned after concrete is poured. That is, the plurality of reinforcing bars are disposed between the first steel wire 140 between the hollow part 120 and on both sides of the hollow part 120 in front, and between the hollow part 120 and both sides of the hollow part 120 at the rear of the hollow part 120 . It may include a second steel wire 142 disposed. The first steel wire 140 and the second steel wire 142 may be disposed in close contact with or adjacent to each of the two strands. When the hollow slab 100 is installed as a horizontal slab, the first steel wire 140 may be configured with two and the second steel wire 142 with one, but the hollow slab 100 is vertically erected on the ground to form a wall. When installed, the first steel wire 140 and the second steel wire 142 may be arranged in equal numbers.

As shown in FIG. 1, the hollow slab joint wall construction structure 1000 of the present invention is a wall structure constructed by continuously joining hollow slabs having a plurality of hollow parts formed therein.

The hollow slab junction wall construction structure 1000 includes a lower buried reinforcing bar 210 in which the lower half is buried in the ground and the upper half is exposed from the ground, a hollow slab 100 having a plurality of hollow parts 120 formed therein, and the hollow part The lower concrete 260 to be poured in the lower portion, the filler 270 to be filled in the middle of the hollow part, the upper connecting reinforcing bar 290, the lower half of which is arranged vertically at the upper end of the hollow part and the upper half is exposed so that the upper half is exposed over the hollow part, and the hollow Includes an upper concrete 320 to be poured on the upper part.

The lower buried reinforcing bar 210 is a bar-shaped reinforcing bar in which the lower half is buried in the ground and the upper half is exposed from the ground, and may be composed of a straight deformed reinforcing bar of a predetermined length. The lower half of the lower buried reinforcing bar 210 may be pre-buried in the ground constructed of reinforced concrete to have a flattened ground. The floor structure forming this ground may consist of columns, beams or girders.

As described above, since the hollow slab 100 has a plurality of hollow portions 120 formed inside the body portion 110 , the plurality of lower buried reinforcing bars 210 have upper halves of the plurality of hollow portions 120 inside. Install the hollow slab 100 so as to be disposed in the As shown in FIG. 4 , the hollow slab 100 is seated on a plurality of pedestals 240 disposed on the ground and may be disposed to be spaced apart from the ground by a predetermined height.

The lower concrete 260 may be poured between the lower end of the hollow part 120 of the hollow slab 100 and the ground. To this end, a square material 250 is disposed between the front and rear surfaces of the lower end of the hollow slab 100 and the ground to close the gap, and then the lower concrete 260 is poured into the upper part of the hollow part 120 to be poured. can As will be described later, since a plurality of lower casting confirmation holes 150 are formed through one side of the hollow slab 100, it can be confirmed that the lower concrete 260 is poured to an appropriate height. The lower concrete 260 may be cured by pouring up to just above the lower casting confirmation hole 150 .

The filler 270 may be injected on the lower concrete 260 to be filled to a height lower than the upper end of the hollow part 120 . As will be described later, the filler 270 is injected through the filler filling hole 160 formed through the lower one side of the hollow part 120 as a thermal insulation and structural reinforcement, and the filler formed through the upper one side of the hollow part 120 Check the And the filling height of the filler 270 can be confirmed through the lifting hole 170 .

The upper connecting reinforcing bar 290 may be disposed such that the lower half is vertically disposed on the upper end of the hollow part 120 and the upper half is exposed above the hollow part 120 . The upper connecting reinforcing bar 290 may be installed so that the lower half thereof is embedded in the upper concrete 320 that is poured on the upper part of the hollow part 120 . The upper connecting reinforcing bar 290 is a supporting connecting reinforcing bar for bonding with the upper hollow slab 400 installed on the hollow slab 100 .

The upper concrete 320 may be poured through the upper opening of the hollow part 120 on the filler 270 in the hollow part 120 . Before pouring the upper concrete 320, an upper connecting reinforcing bar 290 and an upper spiral reinforcing bar 300 to be described later are placed on the upper end of the hollow part 120, and then the upper concrete 320 is poured and cured. .

The hollow slab joint wall construction structure 1000 includes a lower spiral reinforcing bar 230 disposed around the upper half of the lower buried reinforcing bar 210, and an upper spiral reinforcing bar 300 disposed around the lower half of the upper connecting reinforcing bar 290. may include

The lower spiral reinforcing bar 230 is a reinforcing bar having the same shape as a spring spring, disposed around the upper half of the lower buried reinforcing bar 210 and buried in the lower concrete 260 to act as a fixed reinforcing bar. The upper end of the lower spiral reinforcing bar 230 may be disposed at a slightly lower height than the upper end of the lower buried reinforcing bar 210 . The lower end of the lower spiral reinforcing bar 230 may be arranged to come to the lower position of the hollow slab 100 as shown in FIG. 1 , and as shown in FIG. 4 , the lower end of the lower spiral reinforcing bar 230 is seated on the ground It may be arranged as much as possible.

The upper spiral reinforcing bar 300 is also a reinforcing bar having the same shape as a spring spring, disposed around the upper half of the upper connecting reinforcing bar 290 and embedded in the upper concrete 320 to act as a fixing reinforcing bar. The lower end of the upper spiral reinforcing bar 300 may be disposed at the height of the lower end of the upper connecting reinforcing bar 290 , and the upper end of the upper spiral reinforcing bar 300 may be disposed to coincide with the upper opening surface of the hollow part 120 .

5 is a view showing two methods of lifting the hollow slab in the horizontal direction, and FIG. 6 is a view showing a method of lifting the hollow slab in the vertical direction.

When lifting to move the hollow slab 100, as shown in FIG. 5, the hollow slab 100 may be lifted in a horizontally arranged state. When lifting in the horizontal direction, a plurality of hollow slabs 100 can be loaded in several layers.

As shown in Fig. 5 (a), a pair of lifting attachment hardware 510 is coupled to a pair of second ribs 134, and a pair of lifting rings connected to the end of a pair of wires connected in a crane The hollow slab 100 can be lifted by hanging the 550 in the hole formed in the attachment hardware 510 for lifting. The attachment hardware 510 for lifting may be coupled by fastening a plurality of anchor bolts around the second rib 134 . A plurality of attachment hardware 510 for lifting may be coupled to one side of the hollow slab 100 so as to be spaced apart by a predetermined distance.

As shown in Fig. 5 (b), both sides and lower surfaces of the horizontally placed hollow slab 100 are wrapped with a lifting wire rope 520, and this lifting wire rope 520 can be connected to a crane wire and lifted. . Wire rings 522 may be provided at both ends of the lifting wire rope 520 in the form of a ring. So, it is possible to horizontally lift the hollow slab 100 by hanging a pair of lifting rings 550 of the crane wire on the pair of wire rings 522 .

As shown in Figures 1 and 6, the hollow slab 100 is formed through the lower one side to confirm the lower pouring confirmation hole 150 through which the concrete to be poured in the lower portion can be confirmed, and the hollow part in which the filler 270 is filled. A filler filling hole 160 that is formed through the lower side of the middle part of 120 and can fill the filler, and the upper both sides are formed through and can insert the lifting bolts 535, and the filling of the filler 270 is performed. It may further include a confirmable filling material confirmation and lifting hole 170 .

A plurality of lower casting confirmation holes 150 may be formed at positions corresponding to the plurality of hollow portions 120 on one lower side of the hollow slab 100 . In FIG. 2, it is shown that four hollow parts 120 are formed in the hollow slab 100, but in FIG. 6(b), five lower casting confirmation holes 150 on the premise that five hollow parts 120 are formed. This formation is shown. It can be confirmed that the lower concrete 260 has been injected to a predetermined height through the plurality of lower casting confirmation holes 150 . After the lower concrete 260 is poured, a stopper made of a sponge or the like may be inserted to block the plurality of lower casting confirmation holes 150 .

The filler filling hole 160 may be formed directly above each lower casting confirmation hole 150 . The filler 270 may be filled by being pressed into the hollow part 120 at a predetermined pressure by a filler injector (not shown) through the plurality of filler filling holes 160 . The filler 270 may include an insulating material such as polyurethane foam or mortar. The filler 270 may not only support the compressive force applied to the hollow slab 100 together with the concrete injected into the hollow part 120 , but also function as a heat insulator.

The filler confirmation and lifting holes 170 may be respectively formed at positions corresponding to the plurality of hollow portions 120 on both upper sides of the hollow slab 100 . The filling material confirmation and lifting hole 170 can be formed through both walls of the hollow part 120 so as to not only confirm that the filler 270 is filled to a predetermined height, but also insert the lifting bolt 535. .

When lifting the hollow slab 100 in a vertical direction to the ground to install it in a vertical position, the lifting mouth member 530 is checked for filling material and fastened to the lifting hole 170 to be coupled, and a crane wire can be connected to lift there is. The lifting catch member 530 may be formed in the form of an elongated rectangular plate, a fastening hole may be formed through the lower portion and a lifting hole 532 may be formed through an upper portion thereof. A lifting bolt 535 having a thread formed on at least the outer peripheral surfaces of both ends may be inserted into the fastening hole and the filler confirmation of the pair of lifting catch members 530 , and the lifting hole 170 . A pair of lifting catch members 530 can be coupled to the hollow slab 100 by inserting washers 536 into both ends of the lifting bolt 535 and fastening the nut 537 . By coupling two pairs of lifting catch members 530 to one hollow slab 100, and lifting the lifting ring 550 of the crane wire to each lifting hole 532, the hollow slab 100 is placed on the ground. It can be lifted by standing upright in the vertical direction.

On the other hand, as shown in FIG. 1, the hollow slab joint wall construction structure 1000 is coupled to the lower end of the lower spiral reinforcing bar 230 and arranged to connect the plurality of hollow slabs 100 in the horizontal direction to the lower concrete 260 ) to be embedded in the lower horizontal connecting reinforcing bar 220, and the upper horizontal reinforcing bar 310 coupled to the side of the upper connecting reinforcing bar 290 and arranged to connect the plurality of hollow slabs 100 in the horizontal direction. can

The lower horizontal connecting reinforcing bars 220 may be disposed on the lower surface of the plurality of hollow slabs 100 so that a pair is spaced apart from each other in parallel in the width direction. A pair of lower horizontal connecting reinforcing bars 220 may be disposed to be in close contact with both sides of the pedestal 240 and the lower surface of the hollow slab 100 , respectively. The lower end of the lower spiral reinforcing bar 230 is installed to be seated on a pair of lower horizontal connecting reinforcing bars 220, and the lower horizontal connecting reinforcing bar 220 and the lower spiral reinforcing bar 230 are the upper half of the lower buried reinforcing bar 210 together with the upper half. It may be embedded in the lower concrete 260 .

The upper horizontal reinforcing bar 310 may be coupled by welding a pair on both sides of the upper connecting reinforcing bar 290 to the upper surface of the hollow slab 100 and the upper concrete 320 . Since the upper connecting reinforcing bars 290 are disposed for each hollow part 120 , a pair of upper horizontal reinforcing bars 310 may be welded to both sides of the plurality of upper connecting reinforcing bars 290 , respectively.

And, as shown in Figure 1, the inner peripheral surface upper portion of each hollow part 120 can be mounted by inserting the hollow part pouring membrane 280. The hollow pouring barrier 280 may be inserted before filling the filler 270 after pouring the lower concrete 260 . The hollow pouring barrier 280 not only prevents the filler 270 from rising above a predetermined height when the filler 270 is pressurized and injected, but also when the upper concrete 320 is poured, the filler 270 is bordered on the upper surface. It can support the upper concrete 320 as a pouring barrier to form.

In addition, on the hollow slab 100, the upper hollow slab 400 of a similar shape may be subsequently joined to the construction. Although omitted in FIG. 1, when the upper hollow slab 400 is jointly constructed, a spiral reinforcing bar is placed around the upper half of the upper connecting reinforcing bar 290, and then a pedestal is installed on the upper surface of the hollow slab 100 and the upper hollow slab (400) can be seated. Subsequently, the upper hollow slab 400 may be joined to the upper hollow slab 400 in the same order as the construction structure for the hollow slab 100 by pouring concrete under the upper hollow slab 400 .

And, as shown in FIGS. 3 and 4, the joint for laterally joining the side surfaces of the two hollow slabs 100 is a lower buried reinforcing bar 210 that is disposed so that the lower half is buried in the ground and the upper half is exposed in the ground. And, an upper connecting reinforcing bar 290 with a lower half disposed up and down at the upper end of the hollow portion 120 and an upper connecting reinforcing bar 290 disposed so that the upper half is exposed above the hollow portion, and the upper side of the lower buried reinforcing bar and the lower side of the upper connecting reinforcing bar overlap The multi-chip joint reinforcing bar 330 disposed, the lower buried reinforcing bar, the upper connecting reinforcing bar, and the joint spiral reinforcing bar 340 disposed to surround the multi-chip splicing reinforcing bar, and the lower concrete 260 poured under the joint, the lower concrete It may include a joint concrete 350 that is poured over the.

The lower buried reinforcing bar 210 and the upper connecting reinforcing bar 290 are the same as those disposed in each hollow part 120 described above may be disposed at the joint.

The overlapping joint reinforcing bar 330 is arranged so that the lower end overlaps the upper half of the lower buried reinforcing bar 210, and the upper end overlaps the lower half of the upper connecting reinforcing bar 290, extending over almost all of the height of the hollow slab 100 at the joint can be The lower end and the upper end of the lap joint reinforcing bar 330 may be bound to the lower buried reinforcing bar 210 and the upper connecting reinforcing bar 290 by a binding wire or by welding.

The joint spiral reinforcement 340 may be disposed over the entire height of the joint from the ground to the upper surface of the hollow slab 100 . The joint spiral reinforcing bar 340 may be disposed to surround all of the lower buried reinforcing bar 210 , the upper connecting reinforcing bar 290 , and the overlapping joint reinforcing bar 330 .

The lower concrete 260 may be first poured to a height similar to that of the lower concrete 260 poured into the hollow part 120 by attaching a joint pouring barrier 360 to the front and rear surfaces of the joint.

The joint concrete 350 may be secondly poured up to the height of the upper surface of the hollow slab 100 on the lower concrete 260 in the joint space. That is, the filler is not filled in the joint. The joint concrete 350 may be poured and cured with the same concrete when the upper concrete 320 is poured.

7 to 13 are views sequentially showing a hollow slab joint wall construction method. A hollow slab joint wall construction method of the present invention will be described with reference to the drawings.

First, a hollow slab 100 having a plurality of hollow portions 120 formed therein is manufactured in advance. In the hollow slab 100 , a lower casting confirmation hole 150 , a filler filling hole 160 , and a filler confirmation and lifting hole 170 are formed.

The hollow slab joint wall construction method of the present invention comprises the steps of installing a pedestal 240 between a plurality of lower buried reinforcing bars 210 arranged so that the lower half is buried in the ground and the upper half is exposed from the ground, the hollow slab 100 The step of lifting and erecting the hollow slab 100 so that the upper half of the lower buried reinforcing bar 210 is placed in the hollow part 120, installing the square member 250 between the ground and the lower end of the hollow slab 100 and installing the hollow part 120 ) pouring the lower concrete 260 in the lower part, filling the middle part of the hollow part 120 with the filler 270 on the lower concrete 260, the upper inner peripheral surface of the hollow part 120 on the filler material The step of inserting and mounting the hollow part pouring barrier 280 in the lower half of the hollow part 120 is arranged up and down on the upper part and the upper half part is exposed above the hollow part 120. Placing the upper connecting reinforcing bar 290; and pouring the upper concrete 320 on the upper part of the hollow part 120 so that the lower half of the upper connecting reinforcing bar 290 is buried.

As shown in FIG. 7 , a plurality of lower buried reinforcing bars 210 are placed on the ground in advance so that the lower half is buried in the ground and the upper half is exposed in the ground.

Next, a plurality of pedestals 240 are disposed between the plurality of lower buried reinforcing bars 210 on the ground.

Next, a lower spiral reinforcing bar 230 is disposed around the upper half of the lower buried reinforcing bar 210, and a lower horizontal connecting reinforcing bar ( 220) is placed.

Next, two pairs of lifting catch members 530 are fastened to the hollow slab 100 , and the hollow slab 100 is lifted so that the upper half of the lower buried reinforcing bar 210 is disposed in the hollow part 120 . Standing (100) is seated on the plurality of pedestals (240).

Next, the brace 390 is coupled to the brace coupling bracket 182 fastened to the side surface of the hollow slab 100 by the anchor member 1801 to support the hollow slab 100 from falling.

Next, as shown in FIG. 8, a square member 250 is installed between the ground and the lower end of the hollow slab 100, and the lower concrete ( 260) is poured.

At this time, it can be confirmed whether the lower concrete 260 has been poured to a predetermined height through the lower pouring confirmation hole 150 formed through the lower one side of the hollow slab 100 .

Next, as shown in FIG. 9 , the hollow part pouring membrane 280 is inserted and mounted on the inner peripheral surface of the hollow part 120 .

Next, a filler 270 is filled on the lower concrete 260 in the middle of the hollow part 120 . At this time, the filler 270 may be filled through the filler filling hole 160 formed through the lower side of the hollow part 120 . In addition, it is possible to check whether the filling of the filler 270 has been completed through the confirmation of the filler formed through the upper side of the hollow part 120 and the lifting hole 170 .

Next, as shown in FIG. 10 , the upper connecting reinforcing bar 290 is disposed so that the lower half is vertically disposed on the upper end of the hollow part 120 and the upper half is exposed above the hollow part 120 .

Subsequently, the upper spiral reinforcing bar 300 may be disposed around the lower half of the upper connecting reinforcing bar 290 .

Next, the upper concrete 320 is poured on the upper part of the hollow part 120 so that the lower half of the upper connecting reinforcing bar 290 is buried and cured.

Next, as shown in FIG. 11 , a pair of upper horizontal reinforcing reinforcing bars 310 may be welded to both sides of the upper connecting reinforcing bars 290 to connect the plurality of hollow slabs 100 in the horizontal direction.

Next, as shown in FIG. 12 , the brace 390 coupled to the brace coupling bracket 182 is separated. The brace 390 may be separated after curing the upper concrete 320 is completed, and thereafter, the upper horizontal reinforcing bar 310 may be welded to be combined.

Next, as shown in FIG. 13, a spiral reinforcing bar is placed around the upper half of the upper connecting reinforcing bar 290, a pedestal is installed on the upper surface of the hollow slab 100, and then the upper hollow slab 400 can be seated. there is. Subsequently, the upper hollow slab 400 may be joined to the upper hollow slab 400 in the same order as the construction structure for the hollow slab 100 by pouring concrete under the upper hollow slab 400 .

On the other hand, referring to FIGS. 3 and 4 , after the step of erecting the hollow slab 100 , at the joint between the sides of the two hollow slabs 100 , the lower buried reinforcing bar 210 is disposed at the bottom, and the upper connection is made at the top Placing the reinforcing bar 290, and placing the overlapping joint reinforcing bar 330 to overlap between the upper side of the lower buried reinforcing bar 210 and the lower side of the upper connecting reinforcing bar 290, the lower buried reinforcing bar 210, the upper connection The steps of disposing the joint spiral reinforcing bar 340 so as to surround the reinforcing bar 290 and the lap joint reinforcing bar 330, pouring the lower concrete 260 in the lower part of the joint, and the lower concrete 260, the joint on top It may further include the step of pouring the secondary concrete (350).

As described above, the lower buried reinforcing bar 210 is installed in a state where the lower half is buried in the ground. The upper connection reinforcing bar 290 , the lap joint reinforcing bar 330 , and the joint spiral reinforcing bar 340 may be installed in the joint when the lower spiral reinforcing bar 230 is installed in the hollow part 120 .

Next, when pouring the lower concrete 260 in the hollow portion 120, the lower concrete 260 may be poured also in the joint.

Next, when pouring the upper concrete 320 into the hollow part 120, the joint part concrete 350 can be poured also in the joint part.

As described above, a wall having a desired width and height by constructing one hollow slab wall using a hollow slab, joining the hollow slab to the left and right sides, and sequentially joining and constructing a plurality of hollow slabs over it as well. can be easily and firmly constructed.

In the above, an embodiment of the present invention has been described, but those of ordinary skill in the art can add, change, delete, or add components within the scope that does not depart from the spirit of the present invention described in the claims. Various modifications and changes of the present invention will be possible by this, and this will also be included within the scope of the present invention.

1000: hollow slab joint wall construction structure
100: hollow slab 110: body part
120: hollow part 130: rib part
132: first rib 134: second rib
140: first steel wire 142: second steel wire
150: lower casting confirmation hole 160: filler filling hole
170: check filler and lifting hole 180: anchor member
182: brace coupling bracket
210: lower buried reinforcing bar 220: lower horizontal connecting rebar
230: lower spiral reinforcing bar 240: pedestal
250: square material 260: lower concrete
270: filler 280: hollow pouring film
290: upper connecting reinforcing bar 300: upper spiral reinforcing bar
310: upper horizontal reinforcing bar 320: upper concrete
330: lap joint reinforcement 340: joint spiral reinforcement
350: joint concrete 360: joint pour curtain
390: brace 400: upper hollow slab
510: attachment hardware for lifting 520: lifting wire rope
522: wire hook 530: a member for lifting intake
532: lifting hole 535: lifting bolt
536: washer 537: nut
550: lifting ring

Claims (16)

In the hollow slab joint wall construction structure in which a wall is constructed by joining hollow slabs having a plurality of hollow parts therein,
a lower buried reinforcing bar disposed so that the lower half is buried in the ground and the upper half is exposed from the ground;
a hollow slab having a plurality of hollow parts formed therein;
a lower concrete poured in the lower part of the hollow part;
a filler to be filled in the middle of the hollow part;
an upper connecting reinforcing bar disposed so that the lower half is vertically disposed on the upper end of the hollow part and the upper half is exposed above the hollow part; and
Containing upper concrete poured on the upper part of the hollow part,
The hollow slab is formed through a lower side on one side of the lower portion and has a lower pouring confirmation hole through which the concrete to be poured can be confirmed, and a filler filling hole that is formed through the lower side of the middle part of the hollow part filled with the filler to fill the filler; , It is formed through the upper both sides to insert a lifting bolt, and further comprising a filler confirmation and lifting hole that can confirm the filling of the filler,
The filler is a hollow slab junction wall construction structure, characterized in that the insulator is injected by pressing through the filler filling hole. According to claim 1,
The hollow slab is a hollow slab joint wall construction structure, characterized in that two pairs of strands are embedded on one side and the other side on both sides of the plurality of hollow parts. According to claim 1,
a lower spiral reinforcing bar disposed around the upper half of the lower buried reinforcing bar;
Hollow slab joint wall construction structure, characterized in that it further comprises an upper spiral reinforcing bar disposed around the lower half of the upper connecting reinforcing bar. 4. The method of claim 3,
a lower horizontal connecting reinforcing bar coupled to the lower end of the lower spiral reinforcing bar and arranged to connect a plurality of hollow slabs in a horizontal direction and embedded in the lower concrete;
Hollow slab junction wall construction structure, characterized in that it further comprises an upper horizontal reinforcing bar coupled to the side of the upper connecting reinforcing bar and arranged to connect the plurality of hollow slabs in a horizontal direction. delete delete According to claim 1,
Hollow slab junction wall construction structure, characterized in that it further comprises a hollow part pouring barrier which is inserted and mounted on the inner peripheral surface of the hollow part on the filler material. According to claim 1,
The joint between the sides of the two hollow slabs is
A lower buried reinforcing bar disposed so that the lower half is buried in the ground and the upper half is exposed from the ground;
An upper connecting reinforcing bar disposed so that the lower half is vertically disposed on the upper end of the hollow part and the upper half is exposed above the hollow part;
A chip joint reinforcing bar disposed to overlap between the upper side of the lower buried reinforcing bar and the lower side of the upper connecting reinforcing bar;
A joint spiral reinforcing bar disposed to surround the lower buried reinforcing bar, the upper connecting reinforcing bar, and the overlapping chip joint reinforcing bar;
a lower concrete poured under the joint part;
Hollow slab junction wall construction structure, characterized in that it comprises a joint concrete to be poured on the lower concrete. In the hollow slab joint wall construction method of constructing a wall by joining hollow slabs having a plurality of hollow parts therein,
Installing a pedestal between a plurality of lower buried reinforcing bars disposed so that the lower half is buried in the ground and the upper half is exposed from the ground;
disposing a lower spiral reinforcing bar around the upper half of the lower buried reinforcing bar;
disposing a lower horizontal connecting reinforcing bar at a lower end of the lower spiral reinforcing bar to horizontally connect a plurality of hollow slabs;
lifting the hollow slab and erecting the hollow slab so that the upper half of the lower buried reinforcing bar is disposed in the hollow portion;
installing a square material between the ground and the lower end of the hollow slab and pouring lower concrete into the lower part of the hollow part;
Inserting and mounting a hollow part casting barrier on the inner peripheral surface of the hollow part;
filling the middle part of the hollow part with a filler on the lower concrete;
disposing an upper connecting reinforcing bar so that the lower half is vertically disposed on the upper end of the hollow part and the upper half is exposed above the hollow part; and
Hollow slab joint wall construction method comprising the step of pouring the upper part of the concrete in the upper part of the hollow part so that the lower half of the upper connecting reinforcing bar is buried. delete 10. The method of claim 9,
After the step of erecting the hollow slab,
The hollow slab joint wall construction method further comprising the step of supporting the hollow slab by coupling a brace to the side surface of the hollow slab. 10. The method of claim 9,
After the upper connecting reinforcing bar arrangement step,
Hollow slab joint wall construction method, characterized in that it further comprises the step of arranging an upper spiral reinforcing bar around the lower half of the upper connecting reinforcing bar. 10. The method of claim 9,
After the upper concrete pouring step,
Hollow slab joint wall construction method, characterized in that it further comprises the step of coupling an upper horizontal reinforcing bar to the side of the upper connecting bar to connect the plurality of hollow slabs in the horizontal direction. 10. The method of claim 9,
In the lower concrete pouring step,
Hollow slab joint wall construction method, characterized in that the lower concrete is confirmed through the lower casting confirmation hole formed through the lower one side of the hollow slab. 10. The method of claim 9,
In the step of erecting the hollow slab, the hollow slab is lifted by checking the filler formed through the upper both sides of the hollow part and inserting a lifting bolt into the lifting hole,
In the step of filling the filler,
Filling the filler through the filler filling hole formed through the lower side of the hollow part,
Hollow slab joint wall construction method, characterized in that the filling of the filler is confirmed through the confirmation of the filler and the lifting hole. 10. The method of claim 9,
After the step of erecting the hollow slab,
At the joint between the side surfaces of the two hollow slabs, a lower buried reinforcing bar is placed at the bottom, an upper connecting reinforcing bar is disposed at the upper end, and overlapping reinforcing bars are overlapped between the upper side of the lower buried reinforcing bar and the lower side of the upper connecting reinforcing bar. and disposing a joint spiral reinforcing bar so as to surround the lower buried reinforcing bar, the upper connecting reinforcing bar, and the overlapping joint reinforcing bar;
pouring lower concrete under the joint part;
Hollow slab joint wall construction method, characterized in that it further comprises the step of pouring joint concrete on the lower concrete.

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