KR101441938B1 - Rainwater storage tank and construction method thereof - Google Patents

Abstract

The present invention relates to a rainwater storage tank which is built by installing a reinforcement in a mold and coupling precast members prepared by curing and finishing poured concrete. The rainwater storage tank includes: precast members including a precast pillar, a precast floor, a precast wall, and a precast upper plate which are assembled and coupled together on a tank foundation of the rainwater storage tank; a coupling mounting unit which is assembled with the tank foundation or the precast members and includes a slot on a hollow box body; and a semi-automatic coupling unit which is coupled to the coupling mount unit through the slot by the twist-rotation or screw-rotation of a rotary coupling block touching the outer edge of the slot on the coupling mounting unit.

Description

TECHNICAL FIELD [0001] The present invention relates to a rainwater storage tank and a rainwater storage tank,

The present invention relates to a rainwater storage tank and a method of constructing the rainwater storage tank. More particularly, the present invention relates to a rainwater storage tank and a method of constructing the rainwater storage tank. More particularly, the present invention relates to a rainwater storage tank for storing stormwater or stormwater, ground water and the like built with Precast Concrete (PC) And a method of constructing the same.

In recent years, there has been a phenomenon that the impervious surface is increased and the green space is damaged or the amount of penetration of the rainwater underground is decreased due to the water circulation ecological change caused by urbanization.

This phenomenon increases the incidence of impervious layer and sudden intensive rainfall due to urbanization. In other words, flood and peak runoff increase due to abnormal weather, and thus river inflow can be increased. Therefore, it is necessary to reduce the flood burden of overland road and to prevent flood damage and to secure dimensional safety. In addition, frequent occurrence of heavy rain and regional deviations due to weather changes are occurring.

However, in urban areas, existing flood control measures centering on excellence are becoming more restrictive, and there is a limit to the limitless expansion of rainwater pumping stations and river banks in downstream areas.

Therefore, in order to reduce the flood damage reduction by installing a storage facility using a local effective space (park, athletic field, physical facility site, etc.), that is, a rainwater storage tank, for rainfall storage exceeding the drainage capacity while maintaining the existing drainage facility as much as possible Is required. Here, a rainwater storage tank is used to quickly store, store and manage storm surplus exceeding sewage canal discharge capability to prevent flood damage, or utilize stored rainwater in case of emergency.

The types of storm water storages according to the prior art include plastic storages or concrete storages.

A plastic type storage tank is a type of storage tank in which a plastic tank and a structure are covered with a waterproof sheet, and can be manufactured as a lightweight structure, but the structural durability is somewhat lower than that of a concrete type storage tank.

On the other hand, the concrete type storage tank has a pre-cast type storage tank in which a concrete structure is formed by casting concrete at a construction site and a pre-cast storage tank in which a pre- .

For example, the reservoir of Patent Document 1, which is the background of the invention, is made of precast concrete and is made up of a supporting wall, column, beam and slab member, but it is necessary to connect the reinforcing bars exposed from the supporting wall, column, beam and slab member There is an inconvenience. Particularly, in Patent Document 1, the supporting wall or the column is to be positioned on the bottom of the storage tank installation before the operation of connecting the reinforcing rods to each other. Since there is no coupling means capable of quickly positioning the supporting wall or the column, In addition to this long disadvantage, the use of a large number of manpower and equipment for concrete casting and curing is required, and space utilization in the construction site is inefficient because more space is required for these facilities.

In addition, the eco-friendly storeroom of Patent Document 2, which is the background of the invention, also includes the steps of connecting the exposed components (e.g., dowel bars, connecting elements) And the construction period has been prolonged.

[Patent Literature]

(Patent Document 1) Korean Patent No. 10-0952605 (Apr. 04, 2010)

(Patent Document 2) Korean Patent No. 10-1289155 (July 17, 2013)

It is an object of the present invention to provide a precast concrete member (hereinafter abbreviated as 'precast') for rainwater storage tank assembly having a semi-automatic fastening part and a fastening seat part, The present invention provides a rainwater storage tank and a construction method thereof that can precisely place a precast on a rainwater storage tank foundation or shorten a construction period while facilitating precast joining.

According to an aspect of the present invention, there is provided a rainwater storage tank having an axle installed in a formwork, a precast made through finishing and curing after concrete pouring, and a pre-cast, Column precasts, floor precasts, wall precasts and top plate precastes assembled or interlinked on top; A fastening seat part joined to the base of the pre-cast or the storage tank and having a slot in a hollow box-shaped body; And a semiautomatic fastening part in which a rotationally coupled block contacting the outer edge of the elongated hole of the fastening seat part performs passive twist rotation or screw rotation to be coupled to the fastening seat part through the elongated hole. do.

Also, the column pre-cast may include a base having a plurality of fastening seats provided on the bottom surface and having a rectangular plate shape such that the long holes are opened downward; A columnar portion integrally formed so as to be spaced apart from both sides of the base portion and extending in the vertical direction corresponding to the height of the rainwater storage tank; An upper portion connecting upper ends of the column portions to each other; A supporting part extending to both sides of the upper part to support the upper plate precast, and a plurality of fastening seats being installed on the upper surface so that the long holes are opened upward; And a central protrusion projecting upwardly between the supports and provided with a plurality of recessed lugs for lifting the post precast to the crane.

Each of the bottom precast, the wall precast, and the top plate precast includes a plurality of fastening seats on the precast bottom so as to open the long holes downward, and a plurality of recessed lugs are provided on the precast Respectively.

The semiautomatic fastening portion may include a threaded or twisted cam surface for guiding a twist rotation or a screw rotation upon contact with an outer rim of the slot and a fastening jaw having a fastening hook for fastening the inner rim of the slot. ; A casing rotatably coupled to the rotary shaft of the rotary coupling block; A spring installed inside the casing and connected to the rotating shaft to provide an elastic restoring force to the rotating shaft; And a guide pin protruding from the outside of the casing in parallel to the direction of extension of the rotation shaft with respect to a position that is not in contact with the rotary coupling block and fitted in the pin hole of the engagement seating part.

Also, the fastening seat portion may include: a body coupled to a recessed position with respect to an entrance of a seat hole formed in the precast; The long hole formed in the body to be opened toward the entrance of the seating hole; And the pin hole formed in the body to be coupled to the guide pin of the semiautomatic fastening portion to the periphery of the elongated hole.

In the semiautomatic fastening portion, a rotary coupling block protrudes on one side of the casing, or a rotary coupling block protrudes on both sides of the casing.

Further, the semiautomatic fastening portion further has a shielding portion provided on the surface of the casing, the shielding portion having a mortar which is ejected in contact with or pressurized to the fastening restricting portion.

The shield may include a liquid or gel state mortar for finishing or fixing a gap between the semiautomatic fastening part and the fastening seat part; And a thin film capable of storing the mortar and rupturing by an external force equal to or greater than a predetermined size.

According to another aspect of the present invention, there is provided a method of constructing a storm water storage tank in which an embankment is installed inside a mold, and a precast made through finishing and curing is put together after constructing a concrete, Assembling a fastening seat portion during manufacture; B) engaging a semiautomatic fastening portion on the fastening seat of the precast; C) transporting the precast to a rainwater storage construction site; D) lifting the precast by a crane and positioning the precast on an upper part of a fastening seat previously installed on a storage tank base; And E) lowering the pre-cast to cause the rotational coupling block of the semiautomatic fastening portion to be rotationally coupled to the elongated hole of the retention seat-based fastening seat using the movement force of the precast.

The precast includes a column precast, a floor precast, a wall precast and a top plate precast so as to form a space inside the rainwater storage tank and to form a bottom and an outer wall of the rainwater storage tank. Or they are assembled or interconnected by the fastening seat.

Further, after the step E), the top plate precast having the semiautomatic fastening portion is connected through the semiautomatic fastening portion and the fastening seat portion so as to cover the upper portion of the column precast or the wall precast, .

Further, after the upper end finishing step of the storage tank, the pre-cast gap is filled with the same mortar as the precast material, and the surface treatment step is performed to form a waterproof coating film on the inner surface of the precast.

According to one aspect of the present invention, there is provided a semi-automatic fastening part for performing locking through a rotary coupling block capable of twist rotation or screw rotation in a semi-automatic manner in response to contact with an object to be contacted, It is advantageous that the construction of the storage tank can be smoothly and quickly performed.

The present invention is characterized in that the fastening rest part corresponding to the contacted part of the semiautomatic fastening part is previously assembled at the time of the production of the precast concrete material or at the time of constructing the basin of the concrete material and the semicolonical fastening part joined to the fastening rest part, The semi-automatic fastening part and the fastening fastening part are quickly combined using the moving force to move the foundation structure of the storage tank to the foundation of the storage tank. As a result, the combination of the pre-casting with the fastening rest part and the storage tank foundation or between one side precast and the other precast quickly . ≪ / RTI >

According to another aspect of the present invention, there is provided a method of constructing a stormwater storage tank, comprising: connecting a semiautomatic fastening unit to a fastening and seating unit on the basis of a precast using a moving force of a precast; Can be shortened.

According to still another aspect of the present invention, there is provided a semiautomatic fastening part further comprising a shielding part, wherein the shielding part is a liquid or gel-like gap finishing or fastening mortar, and a rupture When the thin film is ruptured, the mortar inside the thin film is separated from the semi-automatic fastening part and the fastening rest part or the gap between the fastening rest part and the fastening rest part by pressing down the pre- The joint between the precast and the tank bases or the joint state between the one precast and the other precast can be quickly and firmly maintained.

According to still another aspect of the present invention, a pair of lapping portions are provided at adjacent portions of the column pre-cast and the bottom precast, so that the lapping portion and the overlapping portion of the pre- Precast can be pressed to maintain a solid connection between each other.

According to still another aspect of the present invention, the number of columns can be reduced to two compared with existing ones (for example, four columns) by the column pre-cast having a U-shaped cross section, The contrast, and the storage capacity of the rainwater storage tank can be relatively increased.

1 is a pre-cast perspective view of a rainwater storage tank according to a first embodiment of the present invention;
2 is a perspective view of the precast shown in Fig.
3 is a cross-sectional view of the pre-cast recessed lug shown in Fig.
4 is a cross-sectional view for explaining engagement between a fastening seating portion and a semiautomatic fastening portion of the precast shown in FIG. 1;
5 is a sectional view for explaining the coupling between the semiautomatic fastening portion and the storage tank base shown in Fig. 4; Fig.
6 is a cross-sectional view of a rainwater storage tank constructed by the precast shown in Fig.
7 is a flowchart illustrating a method of constructing a rainwater storage tank according to the present invention.
FIG. 8 is a sectional view for explaining a connection between a semi-automatic fastening part and a pre-cast of a rainwater storage tank according to a second embodiment of the present invention; FIG.
Figs. 9 and 10 are cross-sectional views for explaining the coupling between the semiautomatic fastening portion and the storage tank bases shown in Fig. 8;
11 is a perspective view for explaining a connection between a column precast and a bottom precast in a rainwater storage tank according to a third embodiment of the present invention.
12 is a sectional view of a rainwater storage tank constructed using the precast shown in FIG.
13 is a precast perspective view of a rainwater storage tank according to a fourth embodiment of the present invention.
14 is a sectional view of a column pre-cast having the C-shaped cross section shown in Fig. 13;
FIG. 15 is a cross-sectional view of a rainwater storage tank constructed using the precast shown in FIG. 13; FIG.
16 is a cross-sectional view for explaining an application example of a column pre-cast having the C-shaped cross section shown in FIG. 14;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

First Embodiment

First, FIG. 1 is a precast perspective view of a rainwater storage tank according to a first embodiment of the present invention.

Referring to FIG. 1, the rainwater storage tank of the embodiment of the present invention is completed by installing reinforcing bars in the formwork, combining pre-casts made through concrete after curing and curing, and assembling or joining them.

This embodiment is a precast 100, 200, 300, 400 that includes a column precast 100, a floor precast 200, a wall precast (not shown) that are assembled or interlinked on a storage tank foundation 10 of a stormwater storage tank 300 and a top plate precast 400. The pre-casts 100, 200, 300, 400 include fastening seats 500, 501 or semi-fastening fasteners 600.

That is, the precasts 100, 200, 300, and 400 are a type of precast concrete product that can be used as a precast concrete or as a pre-cast concrete or as a reinforcing bar or joint, (Not shown), such as a hole for connecting a reinforcing steel bar, and the like, so that it can be considered that at least one or all of the existing precast is included, though it may be omitted from the following detailed description. Further, the joint hardware is fastened through the through holes of the pre-casts 100, 200, 300, and 400 to connect the pre-casts 100, 200, 300, and 400 to each other .

The fastening seats 500 and 501 are incorporated into the respective precasts 100, 200, 300 and 400 or are incorporated into the storage vessel base 10 and are provided with long holes 510 and 511 ). In other words, the fastening seats 500, 501 can be used to pre-cast the precast 100, 200, 300, 400 or the reservoir base 10, It is possible to have excellent structural rigidity as it is connected to the reinforcing bars (e.g., steel, mesh) or joint hardware of the foundation 10 and fixed through concrete pouring.

The precasts 100, 200, 300, and 400 may be coupled to each other by a semi-automatic coupling unit 600 coupled to the coupling seating units 500 and 501, Or coupled to either the pre-cast 100, 200, 300, 400 and the reservoir base 10. For example, one side of the semi-automatic coupling part 600 (for example, the upper rotation coupling block) is coupled to the elongated hole 510 of the coupling seating part 500 provided on the bottom surface of the precast 100, 200, 300, The other side of the semi-automatic coupling part 600 (for example, the lower rotation coupling block) is coupled to the long hole 511 of the fastening rest part 501 provided on the upper surface of the storage tank base 10.

To this end, the semi-automatic coupling part 600 includes a rotation coupling block which contacts the outer edges of the slots 510, 511 of the coupling seating parts 500, 501. Here, the rotary coupling block performs passive twisting rotation or screw rotation through the contact or pressing, and as a result, it is coupled to the fastening seat portions (500, 501) through the slot to enable quick connection. Since the semiautomatic fastening part 600 is connected or coupled with the fastening rest parts 500 and 501 as targets, it is possible to align the positions of the precast parts 100, 200, 300, and 400, The process of finding a correct position to couple some of the plurality of sensors 100, 200, 300, and 400 to the storage tank base 10 can be performed very quickly and accurately.

As shown in FIG. 1, the floor precast 200, the wall precast 300, and the top plate precast 400 are square or rectangular wall or plate structures. The size, number, thickness, etc. of the bottom precast 200, Scale, and low capacity.

The pillar precast 100 and the floor precast 200, the wall precast 300, and the top plate free 300, except for the fastening seats 500, 501 and the semi-cylindrical fastener 600 on the storage tank base 10, The mutual arrangement and association between the casts 400 is a conventional prefabricated type and can be similar or identical to a conventional rainwater storage tank, and thus can be omitted from this embodiment and the claims below.

The bottom precast 200, the wall precast 300 and the top plate precast 400 are also identical or very similar to the column precast 100 so as to open the slots of the fastening seats downward, And the fastening seat portion is provided on the precast bottom surface. The floor precast 200, wall precast 300 and top plate precast 400 also have a plurality of recessed lugs 700 on the precast top surface that are the same as or very similar to the column precast 100 have.

The slots of the fastening seats on the side of the storage tank 10 also open upward to coincide with the slots of the corresponding fastening seat of the floor precast 200, wall precast 300 and top plate precast 400 .

The recessed lug 700 includes a lug mounting hole 104 formed on the upper surface of the precast, a lug frame 702 made of iron in a circular ring or circular ring shape integrated with the inner peripheral surface of the lug mounting hole 104, And a lug supporting bar 703 fixed to the concrete around the precast upper surface by penetrating the lug supporting bar 702 in the radial direction.

The depressed lug 700 may be formed in a plurality of pieces in the column pre-cast 100, the floor pre-cast 200, the wall pre-cast 300 and the top plate precast 400, Can be lifted, moved, lowered, stopped, and loaded by the illustrated crane 20.

Fig. 2 is a perspective view of the precast shown in Fig. 1, illustrating the column precast 100 as an example.

2, the column pre-cast 100 includes a base plate 110 in a rectangular plate shape. At this time, a plurality of fastening seats 500 are provided on the bottom surface, and elongated holes 510 of the fastening seat 500 are opened downward. Here, the semiautomatic fastening part 600 may be coupled to the elongated hole 510 of the fastening rest part 500.

The column pre-cast 100 may be integrally formed so as to be spaced from both sides of the base portion 110 and may include a column portion 120 extending in the vertical direction corresponding to the height of the rainwater storage tank.

The column pre-cast 100 also includes an upper portion 130 connecting the upper ends of the posts 120 and a top plate precast 400 extending to both sides of the upper portion 130, And a support portion 140 having a plurality of fastening seats 503 installed on the upper surface thereof such that the long holes 512 are opened upward.

The column precast 100 also includes a central protrusion 150 with a plurality of recessed lugs 700 mounted thereon to project upwardly between the supports 140 and to lift the column precast 100 to the crane 20 ).

3 is a cross-sectional view of the precast recessed lug shown in FIG.

3, the recessed lug 700 includes a lug attachment hole 104 on the upper surface of the precast, such as the column pre-cast 100, (702) are incorporated.

Since the lug supporting bar 703 is simultaneously supported on the concrete around the lug frame 702 and the upper surface of the precast, the lug supporting bar 703 can provide excellent lifting performance and can prevent the interference with the external object, And a shackle provided at the end of the lifting cable of the lifting cable. Also, since the shackle is in contact with the lug frame 702, it is possible to prevent the shackle from directly coming into direct contact with the pre-cast concrete, so that the pre-cast concrete around the depressed lug 700, It is possible to prevent a partial breakage or a crack from occurring due to an external force that can be generated by the external force.

The lug supporting bar 703 is further provided with an extension plate 704 connected to the reinforcing bars in the concrete or concrete so that the frictional force is increased so that the lug supporting bar 703 is separated from the lug frame 702 Can be prevented in advance.

FIG. 4 is a cross-sectional view for explaining engagement between a fastening seat portion and a semiautomatic fastening portion of the precast shown in FIG. 1. FIG.

4, the semi-automated fastening part 600 includes a rotationally coupled block 610 coupled through a slot 510 of a fastening seat 500 incorporated in a precast, such as a column precast 100 . The rotation coupling block 610 includes a cam surface 611 having a threaded or twisted shape for guiding a twist rotation or a screw rotation when contacting the outer edge 510a of the elongated hole 510, And an engaging protrusion 612 which is engaged with an inner edge 510b of the engaging protrusion 510a.

Here, the outer edge 510a forms a chamfer surface to smoothly induce twist rotation or screw rotation through sliding contact with the cam surface 611. [

The rotation coupling block 610 is rotatably inserted in correspondence to the small width and the long length of the slot 510. The rotation coupling block 610 has a small block width in the block thickness direction of the rotation coupling block 610, The length of the block is larger than the width of the block in the direction of the block length. Restoration to the original position after rotation insertion can be accomplished by the spring 640 built in by the casing 630 of the rotationally coupled block 610. [

The semi-automatic coupling part 600 includes a casing 630 to which the rotation shaft 620 of the rotation coupling block 610 is rotatably coupled and a rotary shaft 620 provided inside the casing 630, And a spring 640 that is connected to provide an elastic restoring force to the rotating shaft 620.

The semiautomatic fastening part 600 protrudes from the outside of the casing 630 in parallel with the extending direction of the rotary shaft 620 with respect to a position in which the semi-automatic coupling part 610 does not contact the rotational engaging block 610, And a guide pin 650 that is fitted in the pin hole 520 of the base plate 500. The guide pin 650 and the pin hole 520 can be engaged in a one-to-one manner, and are provided in a plurality. The rotation of the casing 630 of the semiautomatic coupling portion 600 is restricted by the insertion of the guide pin 650 and the pin hole 520 so that the rotation coupling block 610a Can be easily performed.

The semiautomatic fastening part 600 is of a type in which the rotation coupling blocks 610 and 610a protrude from both sides (for example, upper and lower sides) with respect to the casing 630 and a type in which the casing 630, And a type in which the rotation-engaging block 610a protrudes from one side (e.g., the lower side) with respect to the rotation-engaging block 610a.

On the other hand, each of the above-mentioned fastening seats 500 includes a hollow box-shaped body 530 which is engaged at a recessed position with respect to the entrance of the seat hole 101 formed in the precast. The body 530 may be formed of an iron material and may be connected to an inner reinforcing bar of an unshown precast.

The fastening rest part 500 includes an elongated hole 510 formed in the body 530 so as to be opened toward the entrance of the seating hole 101. Here, the long hole 510 may mean a hole or a slot having a long hole length compared to the hole width. At this time, the portion of the hole having a relatively small width in the elongated hole 510 is the inner edge 510b described above, and can be engaged with the engaging jaw 612 of the rotational coupling block 610 of the semi-automatic coupling portion 600 have.

The fastening mount part 500 includes a pin hole 520 formed in the body 530 so as to be inserted into or coupled to the guide pin 650 of the semiautomatic fastening part 600 around the long hole 510.

Hereinafter, an operation and a precast joining method between the fastening rest part 500 and the semi-automatic fastening part 600 will be described with reference to FIG. 4 to FIG.

FIG. 5 is a cross-sectional view illustrating the coupling between the semiautomatic fastening portion and the storage tank base shown in FIG. 4, and FIG. 6 is a sectional view of the rainwater storage tank constructed by the precast shown in FIG.

4, the semiautomatic fastening part 600 is moved toward the elongated hole 510 of the fastening rest part 500 by using the worker's force or a tool.

The cam surface 611 of the rotationally coupled block 610 of the semiautomatic fastening part 600 is moved along the outer edge 510a of the elongated hole 510 of the fastening seat part 500 in a state shown by a dotted line To induce twist rotation or screw rotation. As a result, the rotationally coupled block 610 and the rotating shaft 620 are rotated by an angle of + 90 °. At the same time, the spring 640 of the semi-automatic coupling part 600 is also wound, and the elastic restoring force for restoring the rotation coupling block 610 and the rotation shaft 620 to their original state is accumulated.

That is, the cam surface 611 of the rotary coupling block 610 of the semiautomatic coupling part 600 becomes a state in which it can be inserted into the slot of the fastening rest part 500 as indicated by a solid line.

Accordingly, the rotation coupling block 610 of the semi-automatic coupling part 600 can pass through the elongated hole 510 of the fastening rest part 500.

When the cam surface 611 is completely inserted into the rotation coupling block 610, the sliding friction force that caused the rotation coupling block 610 to rotate is eliminated. However, due to the elastic restoring force accumulated by the spring 640, The rotary coupling block 610 and the rotary shaft 620 are rotated and rotated by an angle of -90 degrees, resulting in the state shown in Fig.

5, the engaging jaws 612 of the rotary coupling block 610 are engaged with the inner rim 510b of the elongated hole 510 of the fastening fastening part 500, so that the semi-automatic fastening part 600, (500) can be completed.

The coupling between the semi-automatic coupling part 600 and the coupling seating part 500 may be performed each time the semi-automatic coupling part 600 moves or descends.

Accordingly, when the column pre-cast 100 having the semi-automatic fastening portion 600 is lowered toward the slot 511 of the fastening rest part 501 of the storage tank base 10 in the same manner as described above, A coupling state as shown can be made.

6, the rotation coupling block 610a is also rotated through the cam surface 611a, and after the insertion, the locking jaw 612a of the rotation coupling block 610a is inserted into the corresponding fastening seat 501 of the storage tank base 10 The engagement between the semiautomatic fastening part 600 and the fastening rest part 501 can be completed by being hooked on the inner edge 510c of the long hole 511 of the semi-

Each of the floor precasts 200, the wall precasts 300 and the top plate precast 400 also has the column pre-casts 100 connected to the bottom of the storage tank (not shown) through the fastening seats 500, 501 and the semi- 10, the same can be connected to each other by using the fastening seats 502, 503 and the semiautomatic fastening part 601, or the like.

Of course, when the column precast 100, the floor precast 200, the wall precast 300 and the top plate precast 400 are connected to each other, the joint preforms, exposed reinforcing bars, A mortar for bonding or the like may be connected to each other so as to be mutually connected to each other in a continuous manner.

Hereinafter, a construction method of the rainwater storage tank according to the present embodiment will be described.

7 is a flowchart for explaining a method of constructing a rainwater storage tank of the present invention.

Referring to FIG. 7, the construction method of the present embodiment includes a general construction method in which a reinforcement is installed inside a formwork, a precast made through finishing and curing after concrete placement, .

That is, in the construction method of the present embodiment, it is possible to combine the fastening rest part with the foundation of the above-mentioned storage basin, or to fasten the fastening part when manufacturing precast such as column pre-cast, column pre- (S110). ≪ / RTI >

Hereinafter, the method of this embodiment includes a step S120 of joining the semiautomatic fastening part to the fastening rest part of the precast, and a step S130 of conveying the precast to the rainwater storage construction site.

(S140) of lowering the pre-cast to move the pre-cast to the upper part of the fastening seat installed in advance on the foundation of the storage tank by lifting the precast with the crane, And a step (S150) of rotationally engaging the engaging block with the slot of the retention seat-based fastening seat portion.

According to this embodiment, precast is formed by forming a space in the inside of the rainwater storage tank as shown in FIG. 6 and arranging the floor pre-cast, the floor pre-cast, the wall pre- And may be assembled or interlinked by the semiautomatic fastening portion or the fastening seat portion.

In particular, after the step (S150) of rotationally coupling the rotary coupling block of the semiautomatic coupling part to the elongated hole of the storage vessel-based coupling seating part, the upper plate precast having the semi-automatic coupling part is inserted through the semi-automatic coupling part and the coupling seat part (S160) connected to the pre-cast or the wall pre-cast to cover the upper part of the pre-casting tank.

At this time, in order to connect the column pre-cast, the floor pre-cast, the wall pre-cast, and the top plate precast to each other, the operator may connect the pre-cast joint hardware or the exposed reinforcing bars, A bonding mortar or the like may be further added to bond them to each other.

In addition, after the storage tank top finishing step (S160), a surface treatment step (S170) of filling the gap between precast casings with the same mortar as the precast material and forming a waterproof coating film on the inner surface of the precast can be further included.

Further, although not shown in the drawing, the operator may install piping facilities (e.g., pipes, drains, pumps, water level sensors, etc.) corresponding to the pipe connection holes provided in the column precasts, the floor precasts, the wall precasts, Or the rainwater storage tank can be implemented.

Second Embodiment

The rainwater storage tank of the present invention described in this embodiment is a rainwater storage tank of the first embodiment except that the semi-automatic fastening part is of a type in which the rotary coupling block protrudes on one side (e.g., the lower side) with respect to the casing and further includes a shielding part. May be the same or very similar. Therefore, the same or corresponding components in FIGS. 1 to 10 will be given the same or similar reference numerals, and a description thereof will be omitted here.

8 is a cross-sectional view for explaining the connection between the semiautomatic fastening portion and the precast of the rainwater storage tank according to the second embodiment of the present invention, and Figs. 9 and 10 are views showing the coupling between the semi-automatic fastening portion and the storage tank foundation shown in Fig. Fig.

8, the semiautomatic fastening portion 602 includes a rotationally coupled block 610 having a threaded or twisted cam face 611 and an engaging protrusion 612, and a rotational shaft 620 of the rotationally coupled block 610, A spring 640 installed in the casing 630 and connected to the rotating shaft 620 to provide an elastic restoring force to the rotating shaft 620; And a fastening bolt 660 which is engaged with the fastening hole 103 of the seating hole 102 after the casing 630 is seated in the pre-cast seating hole 102.

At this time, the fastening hole 103 may be an anchor nut that is inserted into the pre-cast seat 102 in an insert manner, and the fastening bolt 660 may be screwed to the fastening hole 103 such as the anchor nut And a stud bolt. A plurality of fastening bolts 660 may be inserted through the vertical bolt holes of the casing 630, and then the casing 630 may be fastened to the seat 102 through screwing .

9, the semiautomatic fastening portion 602 includes a shielding portion 800 having a mortar which is contacted with or pressurized to the fastening seat portion 501 provided on the storage tank base 10, 630). Here, the shielding portion 800 may be disposed facing the tightening seat portion 501 and then attached to the bottom surface of the casing 630 with a double-sided tape or the like.

At this time, the shielding portion 800 includes the mortar 810 in a liquid or gel state for finishing or fixing a gap between the semiautomatic coupling portion 602 and the fastening receiving portion 501.

Particularly, the moving force generated when the column pre-cast 100 having the semiautomatic fastening portion 602 is lifted by the crane and then lowered or the pressing force of the casing 630 of the semiautomatic fastening portion 602 pressed upon the lowering It can act as an external force to rupture the shielding portion 800.

That is, the shielding portion 800 includes a hollow-bag-shaped thin film 820 that stores the mortar 810 and can be ruptured by an external force equal to or larger than a predetermined size.

9 and 10, the column pre-cast 100 is lowered toward the fastening seat 501, and the semiautomatic fastening portion 602 and the fastening seat 501 are placed in the state of FIG. 10 The thin film 820 of the shielding portion 800 interposed between the casing 630 of the semiautomatic fastening portion 602 and the fastening receiving portion 501 is ruptured by an external force (e.g., a moving force or a pressing force) do. As a result, the mortar 810 flows into the gap existing in the fastening seat portion 501, and then hardens after a predetermined time to fill the gap.

In this case, the coupling force between the semiautomatic fastening portion 602 and the fastening seat portion 501 is increased, and the pre-cast such as the column pre-cast 100 connected to the semi-automatic fastening portion 602 or the fastening seat portion 501 The connection between the storage tank bases 10, or the above-mentioned various precast joining states can be more firmly maintained.

Third Embodiment

The storm water storage tank of the present invention described in this embodiment may be the same as or similar to the first embodiment or the second embodiment except that it further includes a pair of pre-cast overlapping portions. Therefore, the same or corresponding elements in FIGS. 1 to 12 will be given the same or similar reference numerals, and a description thereof will be omitted here.

11 is a perspective view for explaining a connection between a column pre-cast and a bottom precast in a rainwater storage tank according to a third embodiment of the present invention. FIG. 12 is a sectional view of a rainwater storage tank constructed using the precast shown in FIG. to be.

Referring to FIG. 11 or 12, the third embodiment is a rainwater storage tank in which an axle is installed inside a formwork, and precasts (100a, 200a) made by finishing and curing after pouring concrete are connected to each other.

Such a third embodiment is a precast 100a or 200a which comprises a wall precast 300a and a top plate precast 400 as described above and a column precast 100a And a floor precast 200a.

The third embodiment includes fastening seats 500, 501, and 500a that are combined with the pre-casts 100a, 200a, 300, and 400 or the reservoir bases 10 and have long holes in the hollow box- The rotary engaging block contacting the outer rim of the elongated hole of the fastening rest part 500, 501, 500a is subjected to twist rotation or screw rotation to be coupled to the fastening rest part 500, 501, 500a through the elongated hole And a semi-automatic coupling part 600.

In the third embodiment, the column pre-cast 100a, which is the precast on one side and the bottom precast 200a, which is the precast on the other side, (160, 260).

For example, the column pre-cast 100a includes a base 110 having a plurality of fastening seats 500 installed on the bottom and having a rectangular plate shape so that the long holes are opened downward, And an upper overlapping portion 160 having a straight groove portion 161 on the bottom surface of the base portion 110 protruding in the width direction of the base portion 110 and serving as one side of the overlapping pair 160 and 260.

The column pre-cast 100a is integrally formed so as to be spaced apart from both sides in the longitudinal direction of the base portion 110, and includes a column portion 120 extending in the vertical direction corresponding to the height of the rainwater storage tank, And a plurality of fastening seats 503 extending upward from both sides of the upper seat 130 to support the upper plate precast and opening the long holes upwardly, A center protrusion 150 protruding upward between the support part 140 and provided with a plurality of recessed lugs 700 for lifting the column precast 100a by a crane, .

The floor precasts 200a are provided with protrusions 261 on the upper surface of the bottom of the floor precasts 200a projecting in the width direction of the floor precasts 200a from below the both side surfaces of the floor precasts 200a, And an overlapping part 260 provided on the other side of the overlapping part pairs 160 and 260.

7, the step S150 of rotating the rain water storage tank according to the construction method of the rainwater storage tank according to the third embodiment also descends the precasts 100a and 200a to move the precasts 100a and 200a The rotationally coupled block of the semiautomatic fastening portion is rotationally engaged with the elongated hole of the fastening seat portion of the storage tank base 10 by using the force.

At this time, in the step S150 of performing the rotational coupling according to the third embodiment, the upper overlapping portion 160 of the column precast 100a corresponding to one side of the precast 100a, 200a and the upper overlapping portion 160 of the precast 100a, The lower overlapping portions 260 of the floor precasts 200a corresponding to the other side overlap each other.

At the same time, the flat groove portion 161 of the overlaying portion 160 is fitted to the flat protrusion portion 261 of the lower overlapping portion 260, and the bottom precast 200a , It is possible to maintain a firm connection state with the floor precast 200a, increase the accuracy of assembly, and minimize the occurrence of a gap between the precasts 100a and 200a.

Fourth Embodiment

The storm water storage tank of the present invention described in this embodiment may be the same as or similar to any one of the first to third embodiments except that it further includes a column precast having a U-shaped cross section. Therefore, the same or corresponding components in FIGS. 1 to 16 will be given the same or similar reference numerals, and a description thereof will be omitted here.

FIG. 13 is a perspective view of a rainwater storage tank according to a fourth embodiment of the present invention, FIG. 14 is a sectional view of a column pre-cast having a C-shaped section shown in FIG. 13, Fig. 16 is a cross-sectional view for explaining an application example of a column pre-cast having the C-shaped cross section shown in Fig. 14. Fig.

13 and 14, in the fourth embodiment, a column pre-cast 100b having a U-shaped cross-section and a vertical (vertical) column are formed at the edges of a storage tank foundation 10 provided with a column precast 100b for the construction of a rainwater storage tank. And a wall precast 300 that is mounted to the wall. In the present embodiment or the first to third embodiments described above, the wall pre-casts 300 are connected to each other by a joint hardware or the like, Can be built.

15, the fourth embodiment further includes a top plate precast 400 that is overlaid on top of the column pre-cast 100b or the wall pre-cast 300. As shown in FIG.

In the fourth embodiment, the number of posts in the column pre-cast 100b can be reduced to two in comparison with the existing one (for example, four posts), and the storage capacity of the rainwater storage tank can be relatively reduced Can be increased.

13, the fastening seats 500, 501 can be used to connect the column pre-cast 100b or the wall precast 300 to the basin 10, or, as shown in FIG. 15, The pre-casts 100b, 300, 400, or the reservoir bases 10 and are joined or connected to each other by the semiautomatic fastening portions 600 to interconnect the precast 100b and the top plate precast 400 .

13 and 14, the column pre-cast 100b having a U-shaped cross section has a rectangular plate-shaped base portion 170 which is assembled or mutually coupled on the basin 10 of the rainwater storage tank, Two vertically extending eccentric positioning pillars 180 spaced apart from each other at one side of the eccentric positioning pillar 180 and an upper plate 190 having the same planar area as the rectangular plate, do.

Reinforced portions 178 and 198 are further provided between the inner corners of the base portion 170 and the eccentric placement column portion 180 or between the inner corners of the upper plate portion 190 and the eccentric placement column portion 180, The upper plate portion 170 and the upper plate portion 190 can be prevented from sagging, and the structural rigidity can be increased.

The recessed lugs 700a and 700b correspond to the center of gravity of the column precast 100b having a U-shaped cross section so that the column precast 100b is not tilted when it is pulled up by the crane 20, And may be disposed offset toward the eccentric arrangement post 180 of the precast 100b. 14, the first recessed lug 700a is formed in the upper plate portion 190 just above the eccentric arrangement post 180 and the second recessed lug 700a is formed in the post post 100b, It may be installed at an intermediate position of the upper plate 190 or at a peripheral position thereof.

16, the column pre-casts 100b-1 and 100b-2 have upper overlapping portions 171 and 191 provided at one end of the base portion 170 or the upper plate portion 190, 171 and 191. The eccentric placement pillar 180 includes upper and lower overlapping portions 172 and 192 which are provided at the other end of the eccentric placement pillar 180, respectively.

In the step S150 (refer to FIG. 7) of rotational bonding according to the construction method according to the application example of the fourth embodiment, the first post precast 100b-1 corresponding to one side of the precast 100b-1 or 100b- Are arranged in the overlapping portions 172 and 192 of the second post precast 100b-2 corresponding to the other side of the precast 100b-1 and 100b-2 with the overlapping portions 171 and 191, The overlapping portions 171 and 191 may overlap each other to form the protruding portions of the lower overlapping portions 172 and 192. [

Of course, the pre-casts 100b-1 and 100b-2 according to the application examples are also interconnected to the upper plate precast by the above-described fastening seat portion and semi-automatic fastening portion, can do.

10: Storage tank foundation 20: Crane
100, 100a, 100b, 100b-1, 100b-2:
160, 171, 191: Upper overlapping part 200, 200a: Floor precast
260, 172, 192: Lower lid 300: Wall precast
400: top plate precast
500, 501, 502, 503, 500a: fastening seat part 600, 601, 602: semi-automatic fastening part
700, 700a, 700b: Depressed lug 800: Shield

Claims (12)

In a rainwater storage tank constructed by arranging an insert in the inside of a formwork, and combining precast made through finishing and curing after concrete placement,
A pre-cast pile, a floor pre-cast, a wall pre-cast and a top plate pre-cast assembled or interconnected on a storage tank foundation of the storm water storage tank;
A fastening seat part joined to the base of the pre-cast or the storage tank and having a slot in a hollow box-shaped body; And
And a semiautomatic fastening portion in which a rotationally engaging block contacting the outer edge of the elongated hole of the fastening seat portion is passively twisted or screw rotated to be coupled to the fastening seat portion through the elongated hole.
The method according to claim 1,
The column pre-
A base portion having a plurality of fastening seats provided on a bottom surface and having a rectangular plate shape so that the long holes are opened downward;
A columnar portion integrally formed so as to be spaced apart from both sides of the base portion and extending in the vertical direction corresponding to the height of the rainwater storage tank;
An upper portion connecting upper ends of the column portions to each other;
A supporting part extending to both sides of the upper part to support the upper plate precast, and a plurality of fastening seats being installed on the upper surface so that the long holes are opened upward; And
And a central protrusion projecting upwardly between said supports and provided with a plurality of recessed lugs for lifting said post precast to a crane.
The method according to claim 1,
Each of the floor precast, the wall precast, and the top plate precast,
And a plurality of recessed lugs are provided on the precast upper surface so as to open the slot in a downward direction.
The method according to claim 2 or 3,
The semi-
A rotating joint block having a cam surface in a threaded or twisted shape for inducing a twist rotation or screw rotation upon contact with the outer edge of the slot and a stopping hook for hooking the inner edge of the slot;
A casing rotatably coupled to the rotary shaft of the rotary coupling block;
A spring installed inside the casing and connected to the rotating shaft to provide an elastic restoring force to the rotating shaft; And
And a guide pin protruding from the outside of the casing in parallel to an extending direction of the rotating shaft with respect to a position that is not in contact with the rotationally coupled block and fitted into the pin hole of the engaging seat.
5. The method of claim 4,
Wherein the fastening seat includes:
A body coupled to a recessed position relative to an entrance of a seating hole formed in the precast;
The long hole formed in the body to be opened toward the entrance of the seating hole; And
And the pin hole formed in the body to be coupled to the guide pin of the semiautomatic fastening portion to the periphery of the long hole.
5. The method of claim 4,
The semi-
Wherein a rotary coupling block protrudes on one side of the casing, or a rotary coupling block protrudes on both sides of the casing.
The method according to claim 6,
The semi-
Wherein a shielding portion having a mortar that is ejected in contact with or pressurized to the fastening rest portion is further attached to the surface of the casing.
8. The method of claim 7,
The shielding portion
A mortar in a liquid or gel state for finishing or fixing a gap between the semiautomatic fastening part and the fastening rest part; And
And a thin film capable of storing the mortar and capable of rupture by an external force equal to or greater than a predetermined size.
A method of constructing a rainwater storage tank in which an axle is installed in a mold and a precast made through finishing and curing after concrete placement is combined with each other,
A) incorporating a fastening seat in the manufacture of the precast;
B) engaging a semiautomatic fastening portion on the fastening seat of the precast;
C) transporting the precast to a rainwater storage construction site;
D) lifting the precast by a crane and positioning the precast on an upper part of a fastening seat previously installed on a storage tank base; And
E) lowering the pre-cast to cause the rotary coupling block of the semiautomatic fastening portion to be rotatably engaged with the elongated hole of the fastening and seating portion on the basis of the reservoir using the movement force of the precast, Way.
10. The method of claim 9,
The precast includes a column precast, a bottom precast, a wall precast, and a top plate precast to form a space in the rainwater storage tank and to form a bottom and an outer wall of the rainwater storage tank, and the semi- Wherein the plurality of rainwater collecting units are assembled or coupled to each other by the tightening seat.
11. The method of claim 10,
The upper plate precast having the semiautomatic fastening portion is connected through the semiautomatic fastening portion and the fastening seat portion so as to cover the upper portion of the column precast or the wall precast after the step E) Wherein the rainwater is discharged from the rainwater storage tank.
12. The method of claim 11,
Further comprising a surface treatment step of filling a clearance between the pre-casts with the same mortar as the precast material and forming a waterproof coating film on the inner surface of the precast after the upper surface finishing step of the storage tank .

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