CN112041519A

CN112041519A - Apparatus and method for constructing floors of buildings

Info

Publication number: CN112041519A
Application number: CN201980022769.4A
Authority: CN
Inventors: 白熙晶; 林楠基; 金贵焕
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-03-28
Filing date: 2019-03-11
Publication date: 2020-12-04
Anticipated expiration: 2039-03-11
Also published as: KR102150274B1; CN112041519B; KR20190114731A

Abstract

There are provided an apparatus for constructing a floor slab of a building and a method of using the same, the apparatus for constructing a floor slab of a building including: a cross beam fixing bracket connected to a corner bracket slidably installed at a wall beam connection material at an upper end of a wall panel; a floor slab seated in a space partitioned by the wall beam connecting members and the cross beams to form a floor bottom surface; a cross member fixing part for integrally connecting the cross member and the support head such that the load of the cross member is supported by the support member; a separable guide for supporting the cross beam together with the cross beam fixing member on the support and also for lowering the cross beam separated from the support head along the support; a descending part for gradually descending the cross beam by friction with an outer circumferential surface of the supporter when the separable guide descends; and a stopper formed to protrude at a predetermined height on the supporter and to prevent the lowering of the cross beam and the floor slab.

Description

Apparatus and method for constructing floors of buildings

Technical Field

The present disclosure relates to construction of a building concrete floor (slab), and more particularly, to an apparatus and method for constructing a building floor, which can rapidly and simply assemble and disassemble a floor slab for floor construction, including pouring floor concrete using a frame (frame), curing the concrete, and disassembling the frame, using a fixed type support having a support head connected to an upper end thereof to support the weight of the concrete floor, and a separate guide connected to the remaining support to guide the floor slab to gradually move downward.

Background

Generally, in the construction of a multi-story concrete structure (e.g., apartment or building), the following steps are required: the frame is installed to form the wall and floor, concrete is poured and cured, the frame is disassembled, and then the upward movement and installation of the upper frame members are repeated.

In general, the frames recently used for buildings are assemblies of panels, usually made of metal (for example iron or aluminium). The wall frame is assembled by continuously combining rectangular unit wall panels having a vertical length greater than a width with a gap corresponding to a wall, thereby being constructed to cover an area of the corresponding wall. The floor frame is assembled by successively arranging rectangular unit floor panels between the same plane with the supporters vertically installed on the floor and the cross-members arranged at the upper end of the wall frame, thereby forming a support floor for casting concrete.

After the wall and floor frames are installed, concrete is poured into the frames and the frames are disassembled after the concrete has cured. However, since the height between the floor and the ceiling (floor height) is greater than the height of a worker in most buildings, the worker uses a ladder to disassemble the floor slab, and when the worker separates and disassembles the coupled and assembled slab, the separated floor slab falls on the floor due to its own weight. In this process, not only the flat plate made of metal is inevitably damaged and a safety accident occurs, but also noise and dust are generated when the flat plate hits the floor, which is not only a cause of deterioration of the environment of the work site but also a cause of deterioration of the surrounding environment.

As a solution to the problems of the construction method applied to the construction of the frame of the building in the prior art, a novel frame construction method for constructing a floor slab is disclosed in korean patent No. 10-0484512. The method enables a floor slab to be moved downward and supported at a height at which a worker does not need to use a ladder by improving a beam structure for supporting the floor slab, so that the worker can directly lift the slab and directly place the slab on a floor, and the slab does not directly fall from a ceiling onto the floor when the frame is disassembled after pouring concrete and curing the concrete to form a wall and the floor slab through the frame.

The frame for constructing a floor slab of the patent is advantageous in that the problems indicated by the existing frame can be solved at a time, and the frame can be stably installed and removed easily and quickly with minimal damage to a slab and without requiring a specific skill, so that this method is called a "drop construction method" and has been increasingly used to construct high-rise buildings including apartments as an environmentally friendly frame construction method.

With the widespread use of the "descending construction method", techniques related to the method have been developed. As some examples of the technology, there has been disclosed in korean patent No. 10-1127008 a technology in which a floor slab moves downward when a floor slab supporting beam having a side rotatably mounted on a floor corner bracket at the top of a wall slab moves downward; in korean patent No. 10-1491074, a method of disassembling a frame is disclosed, in which a floor slab is moved downward along a support while maintaining a horizontal state when a yoke bracket supporting the floor slab is separated from a floor corner bracket.

Korean patent No. 10-1514395 discloses a technique in which when a floor slab is disassembled by supporting the central portion of a cross beam slidably mounted on a bracket on a support, the floor cross beam and the floor slab supported by the floor cross beam are moved downward and both ends of the cross beam are made to operate together through a floor corner bracket.

The technology related to the "drop down construction method" known up to now shows more improved features in terms of structural simplicity (including workability and environmental friendliness) compared to the prior art, but the configuration for inducing the floor slab and the cross beam supporting the floor slab to move the supporter downward is not simple and cannot be smoothly moved downward without vibration when the frame is disassembled. In addition, a special cylindrical support is required in addition to the jack support for installing the floor slab until the floor concrete is fully cured. Therefore, a method for solving this problem is required.

Disclosure of Invention

Technical problem

In order to solve the problems of the prior art, an object of the present disclosure is to provide an apparatus for constructing a floor of a building, which enables a corner bracket installed in a wall beam connecting material (soffit length) and connected to an outer end of a beam to be easily separated from the wall beam connecting material and the beam when a frame is disassembled by providing a support head connected to the beam on an upper end of a support member supported on a floor and by fabricating the support beam and a guide member detachably guiding a downward movement below the support head, and which enables a floor slab and the beam to be stably moved downward by their weights through a dropping member provided in a detachable sliding guide by placing the support head.

Another object of the present disclosure is to provide a method of constructing a floor slab of a building, which can simply and rapidly install and dismantle a frame for constructing a floor slab of a building by enabling a corner bracket connected to an outer end of a cross beam on an upper end of a wall panel to be simply connected to or separated from a wall beam connecting material and a cross beam, and by adding a lowering means to a separable sliding guide which is engaged with a fixing part on an outer surface of a support under support heads of the remaining supports to support the cross beam, so that the floor panel and the cross beam can be slowly and stably moved downward by their weights through the lowering part of the sliding guide when the supports are detached, thereby simply and rapidly installing and detaching the frame for constructing a floor slab of a building.

Technical scheme

The objects of the present disclosure and others are achieved by an apparatus for constructing a floor slab of a building. The apparatus comprises: a cross beam fixing bracket connected to a corner bracket slidably installed in the wall beam connecting material on the upper end of the wall panel by a hinge pin; a support member vertically erected on the floor; a support head connected to an upper end of the support and having the same cross section as the cross beam; a cross member fixed at its outer end to the cross member fixing bracket or the support head and horizontally supported by the support between the wall plates facing each other; floor slabs which form a floor by being combined in a lattice shape in the same plane in a space defined by the wall beam connecting material and the cross beam; a beam fixing part which integrally connects the beam and the support head so that the weight of the beam is supported by the support member; a separable guide which causes the cross beam to be supported on the support together with the cross beam fixing member and causes the cross beam separated from the support head to move downward along the support; a descending part which gradually moves the cross beam downward by friction with an outer surface of the supporter when the separable guide moves downward; and a stopper fixed at a predetermined height on the supporter to stop the downward movement of the beam and the floor slab.

The corner bracket has a substantially rectangular cross section with an open side slidably fixed in the wall beam connection, wherein a pair of pin insertion parts are formed at a lower portion of the side, the vertical outer wall inserted and fixed in the wall beam connection is a free end part having a locking step, and an open space is defined between the pin insertion parts and the locking step.

This crossbeam fixed bolster has: a fastening part having a pin hole into which a pin is inserted, the pin being inserted into the pin insertion part of the corner bracket; a body horizontally extending outward from the fastening portion and having a locking bent portion formed at an outer end so as to be locked to a pin fastened to the cross beam; and a hook extending upward from the main body and the fastening portion on the opposite side and formed to be hooked on one end of the locking step of the corner bracket.

The pin holes of the fastening parts and the pin insertion parts of the corner brackets are aligned, and then the hinge pins are collectively inserted into the pin holes and the pin insertion parts, so that the hooks are fitted into the locking steps of the corner brackets, and the cross beam fixing brackets are fixed to the wall beam connecting material and the corner brackets.

Meanwhile, the support head has: a rod mounted in an upper end of the support; and a body fixed to an upper end of the rod to surround the rod, having the same cross-sectional shape as the cross-beam, and having a completely inverted triangular cross-section with both ends inclined downward.

The cross beam coupled to the support head supported at the upper end of the support member and supported at both ends thereof by the wall beam connecting material to support the floor slab P has the same cross section as the support head, and the side of the cross beam connected to the support head is inclined upward. The cross member has a seating rib longitudinally protruding on front and rear surfaces to seat the floor panel, and has a fixing component seat curved and depressed in a width direction below the seating rib.

Meanwhile, separable guides, which are symmetrically formed and mounted on the outer surface of the support, are mounted on the support under the support head. The separable guide has a pin hole for inserting a fixing pin, which is generally inserted into a pin hole of a fixing member located at an upper end of a wing extending outward and upward, and a drop member seat is integrally formed below the wing.

The descending member includes: a friction member head disposed to be in frictional contact with an outer surface of the support by an elastic force of the spring; and a fixing rod extending from the friction member head and inserted into the spring, and fixed to the descending member seat.

Further, a stopper capable of stopping the separable guides, which move downward with the cross beams when the floor slab is separated, within a predetermined portion is formed on the outer surface at a predetermined height in the vertical portion of the supporter.

A method of constructing a floor slab of a building using an apparatus for constructing a floor slab of a building having such a structure includes: installing a wall beam connecting material at the upper end of the wall flat plate, and installing a corner bracket and a cross beam fixing bracket in the wall beam connecting material; connecting a support head to an upper end of the support member and vertically erecting the support member on a floor; fixing the support head and the cross beam using a fixing member and a separable guide, and fixing an end of the cross beam to the corner bracket using a cross beam fixing bracket, thereby supporting the cross beam between the two walls in a horizontal state; placing floor slabs in a lattice shape in the spaces between the beams; pouring concrete into a frame consisting of cross beams and floor slabs; after the concrete is slightly cured, separating the connecting material of the wall beam from the cross beam, and separating the supporting head from the cross beam; the cross beam and the floor slab are slowly moved down along the outer surface of the supporter by rubbing against the outer surface of the supporter by the descending member guided by and mounted on the separable guides; separating the flat plate, which moves downward and is locked and stopped on the stopper, from the cross beam; and after the floor concrete has fully cured, the remaining support members are removed, the support members having support heads attached thereto.

According to another method of constructing a panel of the present invention, the cross beam and the support head may be connected first, the cross beam and the support head connected straight on the wall beam connecting material are supported, and then the upper ends of the supporting members are connected to the support head previously installed from the ground, followed by the same steps as the above-described method.

Technical effects

According to the present disclosure, unlike the prior art in which a specific cylindrical support is required to be installed until concrete is completely cured after a frame is disassembled when a floor slab is constructed, since the support having the support head of the present disclosure configures the remaining supports guiding the downward-moving cross beam and the floor slab and performs the function of the cylindrical support, the configuration of the frame for constructing the floor slab is simplified, and thus there is an advantage in that the frame can be quickly and easily installed and disassembled.

That is, in the apparatus of the present invention, since the remaining supports prevent sagging until the concrete is cured due to the load generated when the concrete is poured to form the floor slab and the weight of the concrete, the cylindrical supports are not required unlike the existing floor slab construction equipment.

Further, since in the present disclosure, the cross beam is connected and separated with the wall beam connection material and the support head is simultaneously connected and separated with the cross beam by inserting and separating the pin, the frame for constructing the floor slab can be rapidly installed and disassembled even without a high level.

Further, in the present disclosure, the girder-floor assembly dropped as a weight due to its weight during the disassembly of the frame is guided by the separable guides and moved down on the outer surface of the girder, and the girder-floor assembly is slowly moved down in the case of maintaining the entire girder-floor assembly in a horizontal state and adjusting the downward movement speed by the friction of the descending member, so that there is an advantage in that the danger of damaging the slab and the safety accident are prevented, and the factor of causing noise or dust is fundamentally prevented.

Drawings

Fig. 1 is an exploded perspective view of an apparatus according to an embodiment of the present disclosure;

FIG. 2 is a perspective view of components of the apparatus of FIG. 1;

FIG. 3 is an exploded perspective view of a wall beam connector and beam connector according to an embodiment of the present disclosure;

FIG. 4 is a cross-sectional view showing a combination of wall beam connectors and cross beams according to an embodiment of the present disclosure;

FIG. 5 is an exploded perspective view of a beam and support connection according to an embodiment of the present disclosure;

FIG. 6 is a cross-sectional view of the combination of FIG. 5;

FIG. 7 is a cross-sectional view of the support head separated from the cross-beam in the apparatus of FIG. 6;

FIG. 8 is an exploded perspective view showing another embodiment of the separable guide of the present invention;

FIG. 9 is a cross-sectional view showing the combination support head and cross-beam of the apparatus employing the separable guide of FIG. 8;

figure 10 is a perspective view showing the installation of a floor slab using the apparatus of the present invention; and

fig. 11 to 15 are sectional views sequentially showing the steps of disassembling the frame according to the method of the present disclosure.

Detailed Description

The objects of the present disclosure, the detailed construction of the apparatus, and the detailed floor slab construction method using the apparatus will be understood in more detail by referring to the detailed description of the drawings below.

First, fig. 1 is an exploded perspective view of an apparatus according to an embodiment of the present disclosure. Fig. 2 is a perspective view of components of the apparatus of fig. 1. Fig. 3 is an exploded perspective view of a wall beam connector and a beam connector according to an embodiment of the present disclosure. Fig. 4 is a sectional view illustrating a combination of a wall beam connecting material and a cross beam according to an embodiment of the present disclosure.

An apparatus for constructing a floor slab of the present disclosure, comprising: a wall beam connecting member 1000 installed at an upper end of a wall panel (not shown); a cross beam 2000 having both ends connected to the wall beam connecting material 1000; a support head 3000 connected in a straight line and coupled to the beam 2000; separable guides 4000 which more firmly connect the cross beam 2000 with the support head 3000 and move the cross beam and floor slab down the supports by their own weight when the frame is disassembled; a descending member 5000 which is installed on the body of the separable guide 4000 and smoothly moves the cross beam and the floor slab downwardly moving along the support with the separable guide; a supporter 6000 vertically installed on the floor, having an upper end connected to the support head 3000 to support the support head, and having a separable guide 4000 mounted thereon; and a stopper 7000 protruding from a predetermined height on an outer surface of the support 6000 and preventing the separable guide 4000 from moving downward by the floor slab assembly.

The wall beam connector 1000 has a substantially hollow rectangular cross section in which the lower portion of the side connected to the cross member 2000 is opened and horizontally elongated and fixed to the upper end of the wall panel, and the corner bracket 1300 having substantially the same outer cross sectional shape slides in the wall beam connector. A pair of pin insertion portions 1310 are formed at lower portions of side surfaces of the corner bracket 1300, the vertical outer wall inserted and mounted in the wall beam connecting material is a free end portion having a locking step 1320, and an open space is formed at a position between the pin insertion portions 1310 and the locking step 1320.

When the corner bracket 1300 is installed in the wall beam connector 1000, the locking step 1320 is supported in contact with the inwardly protruding step 1150 at the free end of the vertical outer wall of the wall beam connector.

A beam fixing bracket 1500 for fixing the wall beam connecting material 1000 and the beam 2000 through the corner bracket 1300 is connected to the corner bracket 1300 between the wall beam connecting material 1000 and the beam 2000.

The beam fixing bracket 1500 includes: a fastening portion 1510 having a pin hole 1511; a body 1520 extending horizontally outward from the fastening portion and having a locking curve 1521 formed on an outer end to be locked to a pin P2 fastened to the cross beam; and hooks 1512 extending upward from the body 1520 and the fastening portions 1510 and formed to hook at ends on the locking steps 1320 of the corner bracket 1300.

As shown in fig. 4, the pin holes 1511 of the fastening portions 1510 are aligned with the pin insertion portions 1310 of the corner bracket 1300, and then the hinge pins P1 are inserted into the pin holes and the pin insertion portions, so that the hooks 1512 are fitted to the locking steps 1320 of the corner bracket 1500, and the beam fixing bracket 1500 is fixed to the wall beam connecting material 1000 and the corner bracket 1300. The unexplained reference numeral "F" is a stopper member for preventing the hinge pin P1 from being separated.

Meanwhile, fig. 5 is an exploded perspective view of a beam and support member connection according to an embodiment of the present disclosure. Fig. 6 is a cross-sectional view of the combination of fig. 5. As shown in the drawing, the support head 3000 has a rod 3200 installed in the upper end of the supporter 6000, and a body 3100 fixed to the upper end of the rod 3200 to surround the rod, the body 3100 having the same cross-sectional shape as the beam 2000 and having a hollow cross-section of a completely inverted triangle with both ends inclined downward.

Main body 3100 of support head 3000 has: a flat top 3110 having anchors 3111 protruded to be fixed to a building floor, both sides 3120 of the flat top 3110 being vertically bent from upper and lower ends of the top to be connected to a floor slab; and a fixing member fastening surface 3140 vertically extending inward from lower ends of both sides under the step 3130, wherein a pin insertion hole 3141 for fixing the fixing member is formed in the fixing member fastening surface 3140.

The cross member 2000, which is connected to the support head 3000 supported on the upper end of the support member 6000 and both ends of which are supported by the wall beam connection member 1000 to support the floor slab SP, has the same cross section as the support head 3000, and one side of the cross member 2000 connected to the support head 3000 is inclined upward to form a straight line without a gap when the support head is connected to the cross member. The cross member 2000 has a seating rib 2100 protruding longitudinally on the front and rear surfaces to seat the floor panel, and below the seating rib, there is a fixing member seat 2200 curved and recessed in the width direction.

The cross member 2000 and the support head 3000 are connected and fixed by a pair of fixing members 2300, and the pair of fixing members 2300 are commonly fastened to the support head 3000, the cross member 2000, and the separable guide 4000.

The separable guides 4000 are symmetrically installed on the supporters 6000 under the supporting head 3000. The separable guide 4000 has pin holes 4110 extending upward and outward at the upper end of the wings 4100 for inserting fixing pins P3 normally inserted into the pin holes 2310 of the fixing member 2300, and a drop member seat 4200 is integrally formed below the wings 4100.

The descending member 5000 has: a friction head 5110 arranged to be in frictional contact with an outer surface of the support 6000 by elasticity of the spring 5200; a fixing rod 5120, which extends from the friction head, is inserted into the spring 5200 and is fixed to the drop member holder 4200.

A fastening portion 4300 for mounting on the support 6000 extends inwardly at a lower portion (i.e., the descending member seat 4200) of the separable guide 4000, and a fastening portion fixing portion for connecting the fastening portion, which may be a locking portion or a separate fastener, is formed at a free end of the fastening portion. A fastening portion fixing portion having locking portions 4310 on both sides is shown in fig. 5.

Fig. 8 is another embodiment of a separable guide 4000 having the same structure as the separable guide of fig. 5, except that a fastening part fixing part has a locking part 4310 on one side and a fastening part 4320 on the other side, and a support bracket 4400 having an L-shaped cross section is further formed on the wing 4100. In the separable guide of the present embodiment, the pin P3 may be inserted through the pin hole 4110, or the pin P3 may be inserted into the fixing member 2300, and the pin hole of the cross beam and the support bracket 4400 support the bottom of the pin P3 and contact the bottom.

Meanwhile, as shown in fig. 6, a center pin P3 is inserted through the fixing member 2300 and the support head 3000, wherein the fixing member 2300 is disposed on the fixing member fastening surface 3140 of the support head 3000 and the fixing member seat 2200 of the cross beam 2000, and the pin holes 4110 of the two wings 4100 of the separable guide 4000 are aligned with the pin holes 2300 of the fixing member corresponding to the pin holes 4110. Further, two pins P3 are inserted through the pin holes 4110 of the fixed member 2300 and the separable guide 4000. Thereby, the beam and the support head and the beam are connected to each other, and the assembly is supported by the support 6000.

Meanwhile, as described above, the support head 3000, the cross member 2000, and the separable guide 4000 are coupled by using the fixing member 2300 and the pin P3, which are fixed and supported by the support 6000. However, in consideration of the risk of dropping the floor slab assembly including the cross member due to the load caused by the poured concrete and the weight of the cross member, as shown in fig. 5 and 6, a locking step 3210 may be formed on the outer surface of the rod 3200 of the support head 3000, and a reduced portion 8200 having a stopper key 8000 of a reduced portion 8200 and an enlarged portion 8100 may be fitted on the locking step 3210, so that the floor slab assembly is more firmly supported by the stopper key 8000.

As shown in fig. 6, when the cross member 2000, the support head 3000, and the separable guide 4000 are integrally combined and a floor slab (not shown in the drawing) is connected between the cross members, the friction head 5110 of the descent part 5000 is elastically contacted with the outer surface of the support 6000 by the elasticity of the spring 5200. In this case, the friction head 5110 may be made of a suitable material such as rubber, synthetic resin, etc. so as to apply friction in relation to the support 6000 made of metal, and the spring may adjust the frictional force applied to the support by adjusting elasticity.

At the same time, the stopper 7000 of the separable guide 4000, which is capable of preventing downward movement with the cross beam when the floor slab is separated, in a predetermined region (i.e., at a height at which the separable guide 4000 moves downward so that a worker can pull down the floor without using a special ladder) is provided at a predetermined height in the vertical portion on the outer surface of the support 6000, wherein it is preferable that the stopper has a support surface expanding outward from the entire outer surface of the support, and a counter weight including the separable guide contacting the stopper can be reliably supported. The reference numeral P4 not designated in the drawing is a pin for fixing the stopper to the support 6000.

The method of constructing a floor slab using the apparatus for constructing a floor slab of the present disclosure having the above-described structure is as follows.

First, the wall beam connector 1000 is installed on the upper end of a pre-installed wall panel, and several corner brackets 1300 are slid into the wall beam connector to be positioned over the beam connectors.

Next, the support head 3000 is attached to the upper end of the support 6000, and the support head 3000 is vertically erected from the floor to a position in line with the corner bracket on both sides, and the support head 3000 and the cross member 2000 are fixed using the fixing member 2300 and the separable guide 4000. The ends of the beam are fixed to the corner brackets 1300 using the beam fixing brackets 1500 so that the beam 2000 is horizontally supported between two walls. In this case, support head 3000 and beam 2000 are joined together by: the support head 3000 and the cross member 2000 are aligned in a straight line, the fixing members 2300 are assembled to each other such that the pin holes 4110 of the two wings 4100 of the separable guide 4000, the pin holes of the fixing members 2300, and the pin holes of the cross member are aligned with each other, and then the pin P3 is inserted through the three pin holes 2310.

Further, as shown in fig. 4, the corner bracket 1300 and the cross beam 2000 are coupled together by aligning pin holes 1511 formed on the fastening portions 1510 of the cross beam fixing bracket 1500 with the pin insertion portions 1310 of the corner bracket 1300 and inserting pins P1 through the pin holes and the pin insertion portions so that the end of the cross beam 200 is placed and supported on the cross beam fixing bracket 1500 fixed to the wall beam connecting material 1000.

Next, as shown in fig. 10, a floor slab is seated in the space between the beams suspended on the upper ends of the two walls and supported by the supporting members, so that the surfaces of the beams, the floor slab, and the wall beam connecting material form a flat surface without empty spaces or gaps, thereby completing the installation of the frame.

An iron rod is put on a flat surface installed to form a floor slab, concrete is poured on the iron rod, and the frame is disassembled when the concrete is slightly cured, and the disassembling step is described with reference to fig. 11 to 15.

First, the pin P1 connecting the corner bracket 1300 and the beam fixing bracket 1500 is pulled out, so that the beam 2000 is separated from the wall beam connecting material 1000 by removing the beam fixing bracket 1500.

Next, the removal tool T having one end branched into two branches is brought into contact with the step 3130 of the support head 3000, the locking protrusion of the other end is inserted into the hole formed in the side of the floor slab SL, and then the handle is rotated to separate the contact surface of the floor slab bonded to the concrete.

Next, the cross member 2000 is separated from the support head 3000, and the two members are separated by removing the pin P3 inserted into the center hole 2310 of the fixing member 2300.

As described above, when the sides of the cross beams are separated from the wall beam connecting material and the middle portions of the cross beams are separated from the support heads, the floor slab assembly starts to move down on the supports by its own weight. If the stop key 8000 is installed, the worker strikes the stop key 8000 to move the rod 3200 of the support head 3000 from the reduced portion 3100 to the enlarged portion 8200, whereby the floor slab assembly starts to move downward.

As shown in fig. 7 and 12, the floor slab assembly moved downward in this manner does not drop rapidly, but is slowly moved downward by friction applied from the descent part 5000, the descent part 5000 is elastically contacted with the outer surface of the support 6000, and the fixing member 2300 and the separable guide 4000 firmly support the cross-beam 2000. The floor slab assembly having a wide slab shape is stably moved downward while maintaining a horizontal state without being inclined to any side or damaging an assembled state.

When the bottom of separable guide 4000 comes into contact with stop 7000 on support 6000, the downward movement of the floor slab assembly is stopped. In this state, the worker can separate and place the floor slabs SP on the floor by removing the coupling pins between the floor slabs SP without using a special ladder (fig. 13).

Next, as shown in fig. 14, the cross beam 2000 is separated by removing the pin P3 connecting the fixing member 2300 and the separable guide 4000, so that only the separable guide 4000 remains on the stopper 7000.

The separable guide 4000 is easily separated from the support 6000 by a simple operation of relatively pushing any one of the fastening parts upward or downward, and then both sides of the separable guide 4000 are fastening part fixing parts of the locking part 4310, and when one side is a fastening part fixing part of the fastening part 4320, the relative vertical position is changed after the fastening part is removed.

As described above, after all the components of the floor slab assembly are disassembled and separated from the supports, the supports including the support heads remain as the remaining support for the support load until the concrete is fully cured, as shown in fig. 15, and are removed after the concrete is fully cured.

Another method of constructing a floor of the present disclosure includes installing a floor construction frame consisting of: first, a beam-support head assembly having the same length as that between two walls is formed by connecting the beam 2000 and the support head 3000 using a fixing member 2300; a wall beam connection material 1000 connecting the corner bracket 1300 and the beam fixing bracket 1500 to the upper end of the wall; supporting two ends of the beam-supporting head assembly by using a beam fixing support; and the upper end of the support having the separable guides 4000 attached to the outer surface thereof is attached to the support head rod of the girder-support head assembly so that the girder is supported by the wings of the separable guides, and the subsequent steps of pouring concrete and disassembling the frame are the same as the above-described method.

In the above method, it is preferable to use the separable guide 4000 having the support bracket 4400 shown in fig. 8. In this method, when the crossmember 2000 and the support head 3000 are previously assembled, the pins P3 are all inserted through the pin holes 2310 of the fixing member 2300 without the separable guides 4000, and thus, as shown in fig. 9, the support brackets 4400 of the separable guides 4000, which are later connected to the crossmember-support head assembly together with the supports 6000, support the pins P3 inserted in both outer sides of the fixing member 2300.

Claims

1. An apparatus for constructing a floor of a building, the apparatus comprising:

a wall beam connecting material (1000) installed at the upper end of the wall panel and connected to the corner bracket (1300);

a cross member (2000) supported at both ends by cross member fixing brackets (1500) connected to the corner brackets (1300);

a support head (3000) connected straight to the beam (2000) while maintaining the same top as the beam (2000);

a separable guide (4000) attached to an outer surface of the support such that the support head (3000) is connected with the beam (2000) and moves down along the support when guiding the beam (2000) and floor slabs other than the support head (3000) to a demolition frame;

a descending member (5000) which is provided in the separable guide (4000) and smoothly moves the cross beam and the floor slab downward moving along the support with the separable guide;

a supporter (6000) whose upper end is connected to the support head (3000) to support the support head, and on which the separable guide (4000) is mounted; and

a stopper (7000) protruding from an outer surface of the support (6000) and preventing the separable guide (4000) from moving downward.

2. The apparatus of claim 1, wherein the corner bracket (1300) has a pair of pin insertion portions (1310) and a locking step (1320) at a free end of the vertical outer wall, and the beam fixing bracket (1500) has: a fastening portion 1510 with a pin hole 1511 into which a pin P1 inserted in the pin insertion portion 1310 of the corner bracket 1300 is inserted into the pin hole 1511; a main body (1520) extending from the fastening portion and having a locking bent portion (1521) formed at an outer end to be locked to a pin (P2) fastened to the cross beam (2000); and a hook (1512), the hook (1512) extending upward from the body (1520) and the fastening portion (1510) and formed to hook on the locking step (1320) at one end of the corner bracket (1300).

3. The apparatus as claimed in claim 1, wherein the support head (3000) has a rod (3200) installed in the upper end of the supporter (6000) and a body (3100) fixed to the upper end of the rod (3200) to surround the rod, the body (3100) having the same cross-sectional shape as the beam (2000) and having a hollow cross-section of a completely inverted triangle with both ends thereof inclined downward.

4. The apparatus according to claim 3, wherein the body (3100) of the support head (3000) has a flat top portion (3110), the top portion (3110) having protruding anchors (3111), both sides (3120) of the top portion (3110) being vertically bent from upper and lower ends of the top portion to connect floor slabs; the body (3100) also has a fixing member fastening surface (3140), the fixing member fastening surface (3140) extending vertically at a step (3130) inward from lower ends of both sides, wherein a pin insertion hole (3141) is formed in the fixing member fastening surface (3140).

5. The apparatus of claim 1, wherein the cross member (2000) has seating ribs (2100) longitudinally protruding on front and rear surfaces to seat the floor slab, and has fixing member seats (2200) bent and depressed in a width direction below the seating ribs (2100).

6. The apparatus of claim 5, wherein the beam (2000) and the support head (3000) are connected by a pair of fixing members (2300), the fixing members (2300) being jointly fastened to the support head (3000), the beam (2000), the separable guide (4000), and a pin (P3) inserted through the fixing members (2300).

7. The apparatus according to claim 1, wherein the separable guide (4000) has a pair of symmetrical structures that can be separated and connected, has pin holes (4110) extending outward and upward on the upper end of each wing (4100), and has a drop member seat (4200) integrally formed under the wing (4100).

8. The device according to claim 7, wherein a fastening portion (4300) for mounting on the support (6000) extends inside the descending member seat (4200) of the separable guide (4000), and a locking portion (4310) or a fastener (4320) is provided on a free end portion of the fastening portion (4300) as a fastening portion fixing portion.

9. The apparatus according to claim 8, wherein one of the fastening part fixing parts of the separable guide (4000) is the locking part (4310) and the other is the fastening part (4320), and the support bracket (4400) having an L-shaped cross section extends above the wing (4100).

10. The apparatus of claim 1, wherein the descending member (5000) has a friction head (5110) and a fixing rod (5120), the friction head (5110) being disposed to be in frictional contact with the outer surface of the support (6000) by elasticity of a spring (5200), the fixing rod (5120) extending from the friction head, being inserted into the spring (5200) and being fixed to the descending member seat (4200).

11. The apparatus of claim 1, wherein a locking step (3210) is formed on an outer surface of the rod (3200) of the support head (3000), and the apparatus further comprises a stopper key (8000) having an enlarged portion (8100) and a reduced portion (8200), the reduced portion (8200) being fitted on the locking step (3210).

12. The apparatus of claim 1, wherein the support (6000) is the remaining support supporting the load between the bottom of the floor slab and the floor until the concrete cures after the floor slab is removed.

13. A method of constructing a floor of a building, the method comprising:

installing a wall beam connecting material at the upper end of the wall flat plate, and installing a corner bracket and a cross beam fixing bracket in the wall beam connecting material;

connecting a support head to an upper end of a support and vertically erecting the support on a floor;

fixing the support head and the cross beam using a fixing member and a separable guide, and fixing an end of the cross beam to the corner bracket using the cross beam fixing bracket such that the cross beam is supported between two walls in a horizontal state;

floor slabs are placed in the space between the cross beams in a lattice shape,

pouring concrete into a frame consisting of the cross beam and the floor slab;

when the concrete is slightly cured, separating the wall beam connecting material from the cross beam, and separating the supporting head from the cross beam;

the cross member and the floor slab are slowly moved down along the outer surface of the supporter by friction of a descending member guided by and mounted on the separable guide with the outer surface of the supporter,

sequentially separating the floor slab, the cross member, and the separable guides, which move downward and are stopped on the stoppers; and is

And after the floor concrete is completely cured, removing the rest supporting pieces with the supporting heads.

14. A method of constructing a floor of a building, the method comprising:

forming a beam-supporting head assembly having the same length as the length between the two walls by connecting the beam and the supporting head using the fixing member;

connecting the corner brackets and the cross beam support brackets to wall beam connecting materials at the upper end of the wall;

supporting both ends of a beam-supporting head assembly on the beam supporting bracket;

connecting an upper end of the support having the separable guides connected to an outer side of the support to a support head rod of the beam-support head assembly such that the wings of the separable guides support the beam;

placing floor slabs in a lattice shape in the spaces between the beams;

pouring concrete into a frame consisting of the cross beam and the floor slab;

slowly moving the cross member and the floor slab downward along the outer surface of the supporter by friction of a descending member guided by and mounted on the separable guide with the outer surface of the supporter;