KR101556334B1 - Form assembly for ribbed slab and construction method of ribbed slab using the same - Google Patents
Form assembly for ribbed slab and construction method of ribbed slab using the same Download PDFInfo
- Publication number
- KR101556334B1 KR101556334B1 KR1020150067353A KR20150067353A KR101556334B1 KR 101556334 B1 KR101556334 B1 KR 101556334B1 KR 1020150067353 A KR1020150067353 A KR 1020150067353A KR 20150067353 A KR20150067353 A KR 20150067353A KR 101556334 B1 KR101556334 B1 KR 101556334B1
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- KR
- South Korea
- Prior art keywords
- rib
- ribbed slab
- slab
- foam
- frame
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-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
Description
The present invention relates to a ribbed slab form assembly and a ribbed slab construction method using the same. More particularly, the present invention relates to a ribbed slab form assembly which is easy to install and demount and which is easy to install on various slabs, And a method of constructing a ribbed slab using the same.
Generally, a slab is a plate-like building structure installed between columns. In the case of a ramen structure such as a reinforced concrete structure or a steel-reinforced concrete structure, a load applied to a slab is a beam, a girder, or the like To the support member of the apparatus.
In the case of reinforced concrete structures with such a ramen structure, each unit slab is divided by beams and the thickness of the slab is reduced to reduce the weight.
A hollow slab, a joist slab, and a two-way waffle slab are used to reduce the weight of the concrete by removing the concrete section that is used inefficiently due to the structural strength of the slab while increasing the slab thickness. In hollow slabs, the process of inserting the permanent mold of cylindrical section into the slab section pours the dough cost and concrete, and the additional material that restrains the docking due to buoyancy or restrains the movement to the left or right is burdensome.
On the other hand, as a method of reducing the weight of the slab, there have been proposed methods of cutting down a part of the cross section of the lower part of the slab such as a golf deck, a waffle slab, and a ribbed slab to reduce their weight.
The ribbed slab is a slab in which a plurality of ribs are formed along the longitudinal direction at a lower portion of the slab. Since the slab concrete can be omitted at a portion other than the portion where the ribs are formed, strength and rigidity similar to those of the primary slab can be exhibited, Is widely used as a structure.
Conventional ribbed slabs have to undergo processes such as installation of slab floor formwork, installation of formwork to form a hollow part between ribs, pouring of concrete, demolding of floor mold, demolding of mold for forming hollow part, There was a problem that it was cumbersome.
In order to construct the ribbed slab, it is necessary to form a hollow portion between the ribs. Since such a hollow forming die must be installed directly on the site, it takes a lot of time and manpower to install the formwork. There is a problem in that it is difficult to apply to a slab structure having various spans.
Further, in the conventional ribbed slab, the main rope is disposed on the upper and lower portions of the rib portion, and if necessary, the stirrup as the front end reinforcing bar is provided. However, since the width of the rib is narrow and the number of the ribs is large, There was a problem that it was uncomfortable.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a mold assembly for forming a ribbed slab and a method of manufacturing the same, in which a rib portion of a ribbed slab and a hollow portion of a ribbed slab To provide a ribbed slab die assembly that can be easily installed and demolded.
It is a further object of the present invention to provide a reinforced concrete truss deck having a beam-shaped roots installed on a rib portion of a ribbed slab, wherein a truss-shaped wire, which is mainly used in a reinforced concrete truss deck, is used, It is manufactured by the method of assembling by connecting with the lower mold of the rib part in the factory as a method of minimizing the quantity of separate yoke or joist, and the mold of the slab part corresponding to the hollow part of the ribbed slab after field installation is assembled in the field To provide a ribbed slab form assembly and a method of constructing a ribbed slab using the same.
In order to achieve the above-mentioned object, a ribbed slab formwork assembly according to the present invention comprises a rib frame spaced apart from each other by a predetermined distance, both ends of which are connected to and supported by a beam or a wall formwork, And a rib foam which is installed between the frames and is mounted on the rib frame.
Here, the rib foam may be a ribbed slab foam having a trapezoidal or dome-shaped cross section and having insertion protrusions to be fastened to the rib frame, the ribbed slab foam being continuously installed and opened at both ends, And an end closure that is fastened to each other and has one end open and a second end closed.
Here, the ribbed slab foam has a plurality of protrusions spaced at a predetermined distance from the bottom surface of the upper surface, and a concave / convex portion is formed on the side surface. The end closure is formed on the upper surface of the upper surface, and between the protrusions of the ribbed slab foam A plurality of second projections inserted into the formed fastening groove and a second concave and convex portion fastened to the concave and convex portions formed on the side surface of the ribbed slab foam.
The upper and lower ends of the ribbed slab foam may have a bent connection part bent from the upper end thereof and may be fastened to the end closure or the bent connection part of the adjacent ribbed slab foam.
The rib frame includes a plurality of base plate units formed in a predetermined size and fastened adjacent to each other in the longitudinal direction, a connection key for fastening a plurality of base plates to each other at a boundary portion between adjacent ones of the plurality of base plate units, A spacer disposed at an upper portion of the base plate at a boundary portion of the plurality of adjacent base plate units and coupled to the base plate and the connection key, and a truss reinforcing bar provided on the spacer.
In the base plate unit, both end portions in the width direction are formed with concavo-convex insertion grooves and protruding protrusions so that the rib foam is inserted and fastened. At both ends in the longitudinal direction, a semi-circular through- A connecting key engagement groove is formed.
The connection key includes a connection key body in the shape of a square inserted into the connection key engagement groove, a plurality of insertion legs protruded upward from the connection key body, and a plurality of insertion legs formed by the plurality of insertion legs And a central groove of a + shape.
The rib frame includes a support frame spaced apart from the support frame and connected to the beam or the wall mold, a base frame spaced apart from the support frame and fastened to the upper portion of the support frame, A spacer secured to the base frame, and a truss reinforcing bar provided on the spacer.
The rib frame may be provided with a separate support frame at its lower portion. The support frame has a C-shaped cross section whose lower end is opened. The hole to which the bolt is fastened is a slotted And is characterized in that it is made to correspond to the specification change when the rib plate is fastened in the form of being perforated at regular intervals.
The base frame includes a lower wall portion extending vertically downward at both ends in the width direction and surrounding the support frame, an upper wall portion extending vertically upward at both ends in the width direction, A second upper wall portion extending upwardly to form an insertion groove between the upper wall portion and the upper wall portion, and a fastening hole provided through the base frame.
A method of constructing a ribbed slab according to the present invention is a method of constructing a ribbed slab by connecting a plurality of base plate units manufactured with a predetermined unit length and connecting spacers and connecting keys to a connected portion, And then the base plate unit, the spacer and the connection key are fixed by inserting a through bolt through the through hole, a truss reinforcing bar is disposed on the upper part of the spacer, and then a fixing bracket is installed to fix the truss reinforcing bar to the base plate, A step of assembling the rib frame at a factory and transferring the rib frame to a site to install a rib frame at a predetermined interval between beams or wall molds; Inserting and installing a grooved slab form, And an end closure is inserted into both ends of the ribbed slab foam, and the second and second concave and convex portions of the end closure are fitted and assembled to the concave groove and concave / convex portion of the ribbed slab foam according to the length of the slab, Disposing a slab reinforcement on an upper part of the ribbed slab form assembly and casting slab concrete after the slab concrete is cured; releasing a lock nut at the lower part of the spacer after the slab concrete is cured; And demolding the ribbed slab foam and the end closure.
According to the ribbed slab formwork assembly of the present invention having the above-described structure, the mold assembly installed to form the ribbed slab can be easily assembled with the rib frame and the ribbed slab form without separately installing the slab floor formwork So that the rib portion and the hollow portion of the ribbed slab can be easily installed and demolded.
In addition, the ribbed slab foam of the rib foam and the end closure can be assembled by fitting the ribbed slab foam and the end closure at a desired length or position in the uneven surface, the fastening groove and the projection as required, Therefore, even if the ribbed slab form assembly is manufactured at a factory, it is possible to provide a ribbed slab form assembly that is easy to install even on slabs having various stiffeners in the field.
In addition, it is also possible to use a truss-type iron wire which is mainly used in a reinforced-integral truss deck, which is installed on the rib portion of the ribbed slab, and a yoke or a joist In order to minimize the quantity, it is manufactured by connecting to the lower mold of the rib part in the factory and assembling the slab part corresponding to the hollow part of the ribbed slab after field installation.
1 is a perspective view illustrating a ribbed slab form assembly according to an embodiment of the present invention.
2 is an exploded perspective view of Fig.
Fig. 3 is a view showing a ribbed slab die assembly disposed adjacent to each other, wherein Fig. 3a is a perspective view and Fig. 3b is a bottom perspective view.
4 is a view showing the base plate of this embodiment.
5 is a cross-sectional view showing a rib foam of the present invention.
FIG. 6A is an enlarged view of a portion B in FIG. 5, FIG. 6B is an enlarged view of portion C in FIG. 5, and FIG. 6C is an enlarged view of portion D in FIG.
Fig. 7A is a perspective view showing the ribbed slab foam of the present invention, Fig. 7B is a bottom view thereof, and Fig. 7C is a view showing the end closure of the present invention.
8 is a perspective view illustrating a ribbed slab form assembly according to another embodiment of the present invention.
9 is an enlarged view of a portion A in Fig.
Fig. 10 is a bottom view of Fig. 8; Fig.
11 is a cross-sectional view of Fig.
12 is a bottom view of a ribbed slab constructed using a ribbed slab formwork assembly according to another embodiment of the present invention.
13 is a view showing a base frame according to another embodiment of the present invention.
Hereinafter, a ribbed slab form assembly according to the present invention and a ribbed slab construction method using the same will be described in detail with reference to the accompanying drawings.
≪ Example 1 >
As shown in Figs. 1 to 7C, the ribbed
The
The
The
4,
At both ends in the longitudinal direction of the
At the both ends of the
A plurality of reinforcing ribs 113 protrude downward from the bottom surface of the
The connection key (12) is configured to fasten the plurality of base plate units to each other at a boundary portion of the adjacent plurality of base plate units.
The
And four
The
The spacer (14) is installed at a position where the through hole is formed and is configured to support the truss reinforcing bar (13). The
The through bolt inserted into the
In addition, a concave seating groove is formed on the upper surface of the
The lower end of the truss reinforcing bars is covered by a fixing
Between the
The
The
As described above, in the rib frame according to the present invention, the base plate unit can be fastened to each other by the connecting key without the need of a separate supporting member, and the rigidity of the truss reinforcing bars can be used to separate the yoke Can be minimized and assembled by connecting to the lower mold of the rib part in the factory and assembled easily in the field.
On the other hand, a
The
The
7A and 7B, an
The
A
The
A plurality of
Further, a reinforcing projection rib (32d) may be further provided between the plurality of second projections on the closing surface side of the end closure to further improve the rigidity of the closing surface of the end closure.
As shown in FIGS. 5 to 6C, the
That is, as shown in FIGS. 5, 6A and 6C, the
As shown in Figs. 5 to 6C, the bending
The bending
The bent fastening portions provided at both ends of the ribbed
The
A ribbed slab construction method using the ribbed slab formwork assembly according to the present embodiment having the above-described structure will be described.
First, a plurality of base plate units manufactured with a predetermined unit length are connected and arranged, and the spacer and the connection key are mounted on the connected portion. Then, a through bolt is inserted into a through hole formed in a connecting portion of the base plate unit to fix the base plate unit, the spacer, and the connecting key.
Then, a truss reinforcing bar is disposed on the upper part of the spacer, and then a fixing bracket is installed to fix the truss reinforcing bar to the base plate to produce a rib frame.
The rib frame is then assembled at the factory and transported to the site.
The ribbed frame is installed at a predetermined interval between the beam or the wall formwork.
Then, a ribbed slab foam is inserted into the rib foam insertion groove of the base plate unit of the adjacent rib frame.
Then, an end closure is inserted into both ends of the ribbed slab foam, and the projections and the second concave / convex portions of the end closure are fitted and fixed to the coupling grooves and concave / convex portions of the ribbed slab foam in accordance with the span of the slab, Place the deck slab assembly.
The slab reinforcement is placed on the upper part of the ribbed slab form assembly and the slab concrete is laid, and after the slab concrete is cured, the bolt under the spacer is released, and the rib frame, the ribbed slab form and the end closure Demolish.
≪ Example 2 >
8 to 13 are views showing a ribbed slab formwork assembly according to a second embodiment of the present invention.
In this embodiment, the same reference numerals are assigned to the same components as those of the first embodiment, and redundant description is omitted.
In this embodiment, the rib frame is different from that of the first embodiment in that the rib frame is constituted by a support frame and a base frame in place of the base plate of the first embodiment. The structure of the rib foam, the structure of the spacer, And thus redundant description will be omitted.
The ribbed
As shown in Figs. 8 and 11, the
The support frames 21 are spaced apart from each other by a predetermined distance, and the rib foam is provided between adjacent support frames 21.
A
9, 12 and 14, the
The
The
A
A slab construction method using the ribbed slab formwork assembly having the above-described construction will be described.
First, the
Then, a
Then, the
Then, the
Thereafter, the
Then, the slab reinforcement is placed on the upper portion of the truss reinforcing bars and the slab concrete is laid.
After the slab concrete is cured, the fixing nut for fixing the lower portion of the fixing bolt inserted into the spacer is released, and the slab construction is completed by demolding the supporting frame, the base frame and the rib foam in order.
The demolded support frame, base frame and rib foam can be reinstalled and reused, thereby avoiding waste of mold assembly and thus reducing costs.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to be exemplary and explanatory only and are not to be construed as limiting the scope of the invention as defined by the appended claims. All of which are included in the technical idea of the present invention.
1: Ribbed Slab Form Assembly
10: rib frame
21: support frame 22: base frame
30: Rib foam
31: Reved slab form
32: End closure
Claims (11)
The rib-
A ribbed slab foam having a cross section formed in a trapezoidal shape or a dome shape and having insertion protrusions to be fastened to the rib frame,
And an end closure fastened to both ends of the ribbed slab foam and having one open end.
The ribbed slab foam has a plurality of protrusions spaced apart from the bottom surface of the upper surface by a predetermined distance,
The end closure includes a plurality of second protrusions formed on the upper surface of the upper surface and inserted into the fastening grooves formed between the protrusions of the ribbed slab foam, and a second uneven portion fastened to the unevenness formed on the side surface of the ribbed slab foam, Wherein the ribbed slab formwork assembly is formed from a plurality of slabs.
Wherein the ribbed slab foam is formed at both upper ends thereof with a bent fastening portion bent from an upper end thereof and is fastened to the end closure or the bent fastening portion of the adjacent ribbed slab foam.
The rib frame
A plurality of base plate units formed in a predetermined size and fastened adjacent to each other in the longitudinal direction,
A connecting key for fastening a plurality of base plates to each other at a boundary portion between adjacent ones of the plurality of base plate units,
A spacer disposed at an upper portion of the base plate at a boundary portion of the plurality of adjacent base plate units and coupled to the base plate and the connection key,
And a truss reinforcing bar provided on an upper portion of the spacer.
Wherein the base plate unit comprises:
Both end portions in the width direction are formed with concavo-convex insertion grooves and projecting ribs so that the rib foam is inserted and fastened,
Wherein a semicircular through hole is formed at both ends in the longitudinal direction, and a connection key engagement groove is formed in which the connection key is inserted.
The connection key includes:
A connecting key body in the shape of a square inserted into the connecting key engaging groove,
A plurality of insertion legs protruded upward from the connection key body,
Shaped central groove formed by the plurality of insertion legs. ≪ RTI ID = 0.0 > 11. < / RTI >
The rib frame
A support frame formed at a predetermined interval and connected to the beam or wall mold,
A base frame installed at a predetermined interval and fastened to the upper portion of the support frame,
A spacer disposed on the base frame and coupled to the base frame,
And a truss reinforcing bar provided on an upper portion of the spacer.
Wherein the support frame is formed of a C-shaped section steel whose cross section is opened at the lower end thereof.
The base frame includes:
A lower wall portion extending vertically downward at both ends in the width direction and surrounding the support frame,
An upper wall portion extending vertically upward at both ends in the width direction,
A second upper wall portion extending vertically upward from the inside of the upper wall portion and forming an insertion groove between the upper wall portion and the upper wall portion,
And a fastening hole provided through the base frame.
Assembling the rib frame at a factory and transporting the rib frame to a site to install a rib frame at a predetermined interval between beams or wall molds;
Inserting and installing a ribbed slab foam into a rib foam insertion groove of the base plate unit of the adjacent rib frame;
And an end closure is inserted into both ends of the ribbed slab foam, and the second and second concave and convex portions of the end closure are fitted to the concave and convex portions of the ribbed slab foam according to the length of the slab, Placing a slab form assembly,
Placing a slab reinforcement on the top of the ribbed slab form assembly and casting slab concrete,
And releasing the lock nut at the bottom of the spacer after the slab concrete curing, and demolding the rib frame, the ribbed slab foam, and the end closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150067353A KR101556334B1 (en) | 2015-05-14 | 2015-05-14 | Form assembly for ribbed slab and construction method of ribbed slab using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150067353A KR101556334B1 (en) | 2015-05-14 | 2015-05-14 | Form assembly for ribbed slab and construction method of ribbed slab using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR101556334B1 true KR101556334B1 (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150067353A KR101556334B1 (en) | 2015-05-14 | 2015-05-14 | Form assembly for ribbed slab and construction method of ribbed slab using the same |
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| KR (1) | KR101556334B1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200482185Y1 (en) * | 2016-07-04 | 2016-12-27 | 주식회사 흥성이엔씨 | saddle provided for roof structure |
| KR101860299B1 (en) * | 2017-04-28 | 2018-05-23 | 주식회사 신한씨에스 | Baseplate seperatable deckplate construction method |
| CN110080447A (en) * | 2019-05-29 | 2019-08-02 | 上海欧本钢结构有限公司 | A kind of excellent floor of included split heads rest |
| CN110886419A (en) * | 2019-10-17 | 2020-03-17 | 上海宝冶冶金工程有限公司 | Steel bar truss floor support plate support and construction method |
| KR20200046261A (en) * | 2018-10-24 | 2020-05-07 | 김상모 | Form assembly for waffle slab |
| KR20200091609A (en) * | 2019-01-23 | 2020-07-31 | 김상모 | Plastic ribbed slab system and construction method using the same |
| KR102259828B1 (en) | 2019-12-09 | 2021-06-03 | 봉원용 | the improved two way rib type slab structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200366581Y1 (en) * | 2004-08-18 | 2004-11-06 | 조상규 | A reinforcement deck structure for a long span |
| KR101439488B1 (en) * | 2014-07-09 | 2014-09-12 | 삼광선재 주식회사 | Removable deck assembly for forming slab and method for manufacturing slab by using there |
-
2015
- 2015-05-14 KR KR1020150067353A patent/KR101556334B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200366581Y1 (en) * | 2004-08-18 | 2004-11-06 | 조상규 | A reinforcement deck structure for a long span |
| KR101439488B1 (en) * | 2014-07-09 | 2014-09-12 | 삼광선재 주식회사 | Removable deck assembly for forming slab and method for manufacturing slab by using there |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200482185Y1 (en) * | 2016-07-04 | 2016-12-27 | 주식회사 흥성이엔씨 | saddle provided for roof structure |
| KR101860299B1 (en) * | 2017-04-28 | 2018-05-23 | 주식회사 신한씨에스 | Baseplate seperatable deckplate construction method |
| KR20200046261A (en) * | 2018-10-24 | 2020-05-07 | 김상모 | Form assembly for waffle slab |
| KR102177979B1 (en) * | 2018-10-24 | 2020-11-12 | 김상모 | Form assembly for waffle slab |
| KR20200091609A (en) * | 2019-01-23 | 2020-07-31 | 김상모 | Plastic ribbed slab system and construction method using the same |
| KR102216897B1 (en) * | 2019-01-23 | 2021-02-17 | 김상모 | Plastic ribbed slab system and construction method using the same |
| CN110080447A (en) * | 2019-05-29 | 2019-08-02 | 上海欧本钢结构有限公司 | A kind of excellent floor of included split heads rest |
| CN110886419A (en) * | 2019-10-17 | 2020-03-17 | 上海宝冶冶金工程有限公司 | Steel bar truss floor support plate support and construction method |
| KR102259828B1 (en) | 2019-12-09 | 2021-06-03 | 봉원용 | the improved two way rib type slab structure |
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