KR101258330B1

KR101258330B1 - Temporary supporting system of steel beam and construstion method thereof

Info

Publication number: KR101258330B1
Application number: KR1020100108424A
Authority: KR
Inventors: 케이고 나가세; 구은경; 고현진
Original assignee: 케이고 나가세; 고현진; 구은경
Priority date: 2010-11-02
Filing date: 2010-11-02
Publication date: 2013-04-25
Also published as: KR20120046644A

Abstract

A steel beam temporary support system configured to allow construction of a steel beam extending from an outer steel column to an inner core wall before construction of the core wall, and vertically facing each other from a floor slab to correspond to a gap of the steel beam. And a support for supporting the load of the steel beam between the first post and the second post, and the first post and the second post.

Description

Steel beam temporary support system and construction method {TEMPORARY SUPPORTING SYSTEM OF STEEL BEAM AND CONSTRUSTION METHOD THEREOF}

The present invention provides a steel beam temporary support system and its construction method, more specifically, the steel frame so that the steel beam can be installed between the outer steel column and concrete core wall before the construction of the concrete core wall located inside the ground and underground construction of the construction site The present invention relates to a beam hypothesis supporting system and a construction method thereof.

In the conventional construction and construction of civil engineering, as a construction method of connecting the reinforced concrete wall of the core and the steel structure, for example, steel beams, when the reinforced concrete wall construction is embedded in the steel plate in advance and after the concrete is poured again in the embedded steel plate Welding gusset plates and securing steel beams to them were widely used.

In this conventional method, the reinforced concrete wall must be constructed in advance before the installation of steel structures such as steel beams. To this end, it is common to pre-install the internal reinforced concrete walls using expensive system foams, which causes a lot of cost and labor to construct the internal reinforced concrete walls.

In addition, in the conventional method, there was a case in which steel pillars for installing steel structures outside the core wall were installed inside the core walls and assembled outside steel structures, but in this case, steel pillars for installing external steel structures in the interior wall concrete installation Landfilling caused excessive costs. In addition, steel pillars, which serve as temporary columns, have a lot of interference in the reinforcement work of reinforced concrete walls inside, which leads to a long work period for wall formwork and a large labor cost.

In the present invention, in order to solve the above problems, to install the steel beams in advance to install the inner core wall or to install the steel beams connected to the outer steel pillars without embedding the temporary pillars in the core wall It is an object of the present invention to provide a steel beam temporary support system and a construction method thereof capable of supporting a load of the steel beam.

Steel beam temporary support system according to the present invention is a steel beam temporary support system for constructing the steel beam extending from the outer steel pillars to the inner core wall before construction of the core wall, in the vertical direction facing each other from the floor slab A first post and a second post that are extended and spaced apart to correspond to the interval of the steel beam; It characterized in that it comprises a support for supporting the load of the steel beam between the first post and the second post.

In addition, the steel beam provisional support system according to the present invention, the sliding groove is provided on the side of the first post and the second post, respectively; The support is formed in a bar (bar) so that both ends are inserted into the sliding groove; The support block for preventing the free fall of the bar-shaped support is inserted into the sliding groove is characterized in that each installed in the sliding groove.

In addition, the steel beam provisional support system according to the present invention, characterized in that the bottom of the first post and the second post further comprises a lower fixing device of the first post and the second post.

In addition, the steel beam hypothesis supporting system according to the present invention, characterized in that it further comprises an auxiliary band configured to prevent any deformation of the first post and the second post while surrounding the outer peripheral surface of the first post and the second post. do.

In addition, the steel beam temporary support system according to the present invention, the support is composed of a bracket installed between the first post and the second post of the lower end of the steel beam in order to support the load of the steel beam; The bracket is fixed to the first post and the second post.

In addition, the steel beam hypothesis support system according to the present invention, the support is two bands surrounding the outer periphery of the first post and the second post, respectively, and to transfer the load of the steel beam to the band of the steel beam The bracket is positioned between the first post and the second post at the bottom and connected to the band.

In addition, the steel beam provisional support system according to the present invention, the steel plate is installed on the left and right sides of the web at one end close to the core wall of the steel beams in parallel to the formwork of the core wall, the steel beam of the core wall U-trap for connecting to the wall reinforcement is characterized in that coupled to the iron plate.

In addition, the steel beam provisional support system according to the present invention, characterized in that the fixing plate is installed on the upper end of the first post and the second post is coupled to the first post and the second post to the fixing plate.

In addition, another steel beam temporary support system according to the present invention is a steel beam temporary construction support system for constructing a steel beam extending from the external steel pillars to the inner core wall before construction of the core wall, the steel pillar for temporary construction ; A first base plate coupled to the bottom of the steel column; A second base plate installed on an extension line of the steel frame column so as to face the first base plate; A connecting jack bonded to the first base plate and the second base plate; The outer peripheral portion of the second base plate is characterized in that a plurality of through-holes are formed.

In addition, the method of constructing a steel beam temporary support system according to the present invention is a floor slab as a method of constructing a steel beam temporary construction support system for constructing a steel beam extending from an external steel column to an internal core wall before construction of the core wall. Constructing a steel column on the; Constructing a first post and a second post spaced apart from each other to correspond to the interval of the steel beams while extending in a vertical direction facing each other from the bottom slab to support the steel beams; And constructing a support for supporting the load of the steel beam between the first post and the second post.

In addition, the method of constructing a steel beam temporary support system according to the present invention, the support is configured in the form of a bar; Constructing sliding grooves on side surfaces of the first post and the second post, respectively; Inserting both ends of the bar-shaped support into the sliding groove; It characterized in that it further comprises the step of installing each of the support blocks in the sliding groove for preventing the free fall of the bar-shaped support is inserted into the sliding groove.

In addition, the steel beam temporary support system construction method according to the invention, characterized in that it further comprises the step of installing the lower fixing device of the first post and the second post on the bottom of the first post and the second post. .

In addition, the steel beam temporary support system construction method according to the present invention, surrounding the outer circumferential surface of the first post and the second post while installing an auxiliary band configured to prevent any deformation of the first post and the second post It is characterized in that it further comprises.

In addition, another method of constructing a steel beam temporary support system according to the present invention is a method of constructing a steel beam temporary construction support system for constructing a steel beam extending from an external steel column to an internal core wall before construction of the core wall. Constructing a steel column on the slab; Constructing a second base plate on the floor slab; Installing a connection jack on the second base plate; Installing a first base plate on the connection jack; And installing a temporary steel frame pillar on the first base plate to support the steel beam.

According to the steel beam temporary support system and the construction method of the present invention, there is no need for prior construction of the internal reinforced concrete wall used to support the steel frame in the conventional construction method, and also the need to embed steel steel in the wall none. In addition, it is also possible to reuse the steel beam temporary support system can be expected to reduce the cost of steel support, and the structural safety is increased during construction by continuing to install the steel beam temporary support system after construction.

1 is a perspective view of a steel beam temporary support system according to the present invention.
Figure 2 is a front view of the steel beam temporary support system according to the present invention.
3 is an enlarged view of a first embodiment of a support of a steel beam temporary support system according to the present invention;
4 is an enlarged view of a second embodiment of a support of a steel beam hypothesis supporting system according to the present invention;
5 is an enlarged view of a third embodiment of a support of a steel beam hypothesis supporting system according to the present invention.
Figure 6 is a view showing an embodiment in which the auxiliary band is installed on the connecting jack and the post of the lower portion of the steel beam temporary support system according to the present invention.
Figure 7 schematically shows that the steel beam hypothesis supporting system according to the invention is constructed separately between floor slabs.
8 is a view schematically showing that the steel beam temporary support system according to the present invention is constructed while being reused by being raised from two floors to a higher floor from a lower floor.
9 is a perspective view showing a structure in which a steel beam temporary support system is constructed according to the present invention.
10 is another perspective view showing the construction process of the steel beam temporary construction support system according to the present invention and the connection between the steel beam and the core wall.
11 is a perspective view of another embodiment of a steel beam temporary support system.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the accompanying drawings, similar or identical components are denoted by like or identical reference numerals.

Referring to FIGS. 1 and 2, the steel beam temporary support system of the present invention includes a first post 1 and a second post 2 spaced apart from each other in a horizontal direction in a vertical direction on a floor slab corresponding to left and right sides. ) And the support 3 provided therebetween. It is natural that the spacing is determined according to the width of the beam or the girder positioned between the first post 1 and the second post 2.

The support 3 is inserted between the first post 1 and the second post 2 to support the vertical load of the beam, generally the steel beam 10, in the embodiment of FIGS. Is shown in the form of a bar. In addition, in FIGS. 1 to 3, the bar-shaped support 3 supports the steel beam 10 by welding or bolting the first post 1 and the second post 2 to each other. Although it may be fixed to, in the construction method of the steel beam temporary support system according to the present invention to be described later, the first post (1) to facilitate the step of raising the steel beam temporary support system from a low floor to a high floor And it is preferable to form a sliding groove 50 which can be slid by inserting the bar support 3 in the side of the second post (2).

In addition, as shown in FIG. 3, in order to prevent the bar-shaped support 3 inserted into the sliding groove 50 from falling freely, the bar-shaped support ( It is common to install the support blocks 31 supporting 3) in the two sliding grooves 50, respectively. The support block 31 may be welded to the first post 1 and the second post 2, but is preferably bolted to facilitate removal.

In addition, the first post 1 and the second post 2 to help fix the first post 1 and the second post 2 and to easily lift the first post and the second post to the upper layer. It is preferable to install the fixing plate 100 on the top of the) and to weld the first post 1 and the second post 2 to the fixing plate 100, or to bolt together by attaching a separate cover plate. Do. By adopting the fixing plate 100, the lifting device (not shown) such as a crane can be gripped to the fixing plate 100, thereby easily lifting the steel frame temporary support system according to the present invention to the upper layer. .

In addition, as shown in Figure 8 in the construction method of the steel beam temporary construction support system according to the present invention in the embodiment of vertically raised to the high floor after using the steel beam temporary construction support system, the steel beam temporary construction support The bottom slab 40 in which the system is installed forms a through hole through which the posts 1 and 2 can pass. Therefore, in order to prevent the posts 1 and 2 from falling again through the through holes, it is preferable to install the lower fixing device 4 at the lower ends of the posts 1 and 2. As shown in FIG. 2, the lower fixing device 4 is inserted with the first post 1 and the second post 2 together with the side of the lower fixing device 4 and the posts 1 and 2. It is preferable that the sides of the) are formed to be seated while contacting each other. It is preferable that the lower fixing device 4 is formed in a rectangular parallelepiped shape when the posts 1 and 2 are square tubes, and preferably in the cylindrical shape when the posts 1 and 2 are circular tubes.

In addition, the lower fixing device 4 may be inserted together with the first post 1 and the second post 2, as shown in Figure 2, the first post 1 and the second post ( It may be desirable to form 2) to prevent any deviation in the lateral direction and to firmly fix the posts 1 and 2 during construction.

In addition, as shown in FIG. 6, a connecting jack 70, for example, screw jacks 71 and 72 as shown in FIG. 11, is disposed below the first post 1 and the second post 2, respectively. By providing it, it can respond more suitably to the construction error or play which generate | occur | produce during construction.

In addition, as shown in FIG. 6, in order to additionally fix the posts 1 and 2, it may be desirable to additionally provide auxiliary bands 60 that surround and fix the outer circumferential surfaces of the posts 1 and 2. .

In addition, as shown in FIG. 11, in another embodiment of the steel beam temporary support system according to the present invention, a temporary steel column 11 may be used instead of using a plurality of posts 1 and 2. In the above embodiment, the first base plate 80 is installed at the lower end of the temporary steel frame pillar 11, and the connection jacks 71 and 72 are connected to the bottom of the first base plate 80, and then the connection jacks 71 are used. 72, it is preferable to connect the second base plate 81 to the bottom. Therefore, the temporary steel frame pillar 11 is able to support the vertical load of the steel beam 10, the connecting jacks 71, 72 serves to adjust the play or the gap that occurs during construction. The first base plate 80 and the second base plate 81 may serve to effectively transmit the compressive force applied by the connecting jacks 71 and 72 to the floor slab and the temporary steel column 11. Although the connecting jack is illustrated as a screw jack in FIG. 11, an air jack or a hydraulic jack may be used. In addition, a plurality of through holes may be formed in the outer periphery of the second base plate, and fastening high-strength bolts through the bottom slab may be preferable to fix the steel beam temporary construction support system to the slabs.

In addition, the steel beam provisional support system according to the present invention using the temporary steel pillars 11, each steel beam construction support system individually by floor than in the method of constructing while lifting the steel beam construction support system from the lower floor to the higher floor separately It is more suitable for the method of installation and construction.

4 is a view showing another embodiment of the support of the steel beam temporary support system according to the present invention. According to the embodiment shown in FIG. 4, brackets 13a and 13b for supporting the load of the steel beam 10 are located between the posts 1 and 2 at the bottom of the steel beam 10. In order to transfer the load transmitted from the steel beams 10 to the brackets 13a and 13b to the posts 1 and 2, the brackets 13a and 13b are respectively attached to the posts 1 and 2. It is fixed by bolting or welding. The brackets may be provided separately to the posts 1 and 2 as shown in FIG. 4, but one continuous bracket may be provided that extends along the entire width of the steel beam 10.

5 is a view showing another embodiment of the support of the steel beam temporary support system according to the present invention. The support members 23a and 23b support the two bands 23a surrounding each of the first post 1 and the second post 2 and the band 23a while supporting the load of the steel beam 10. It consists of a bracket (23b) is formed to be connected to the band (23a) in order to transfer the load of the steel beam (10). The bracket 23b is located between the two bands 23a. The band 23a may be formed to surround each of the posts 1 and 2 integrally in a cylindrical or angular shape, but each of the bands 23a is formed in a shape such as two hemispheres and two hemispheres. The posts 1 and 2 may be wrapped around each of the posts 1 and 2 so that the posts 1 and 2 may be fastened to each other.

Steel beam hypothesis supporting system according to the present invention as described above may be constructed in the manner of manufacturing the first post 1, the second post 2 and the support (3; 13a, 13b; 23a, 23b) directly on site In general, it is desirable to prefabricate in the factory and assemble in the field.

Hereinafter, with reference to Figures 7 to 10 will be described using a preferred embodiment of the construction method of the steel beam temporary support system according to the present invention.

9 to 10, in the method of constructing a steel beam temporary support system according to the present invention, in order to construct a steel structure on the inner side of the inner core wall, generally reinforced concrete core wall 20, steel column 30 ) Is installed on the slab 40 and then the steel beams 10 extending inward toward the core wall 20 from the steel pillars 30. In order to construct the steel beam 10, the first post 1 and the second post 2 for supporting the load of the steel beam 10 is constructed on the slab (40). Subsequently, after the support 3 (13a, 13b; 23a, 23b) is constructed between the first post 1 and the second post 2, the steel beam extending from the steel pillar 30 on the support ( 10). Next, the inner core wall 20 is constructed. As described above, when the construction method of the steel beam temporary support system according to the present invention is used, the convenience of construction because it is not necessary to pre-install the inner core wall or to bury the temporary pillar in the core wall to install the steel structure It can be expected to have an advantageous effect of improving economic efficiency.

7 to 8, in the method of constructing a steel beam temporary support system according to the present invention, it is common to install a steel beam temporary support system by floor as shown in FIG. 7, but it is used in a low floor as shown in FIG. 8. The steel beam hypothesis supporting system can be vertically transferred to a higher floor for reuse. To this end, the construction method of the steel beam temporary support system according to the present invention is a through hole through which the posts (1, 2) are moved through so as to vertically raise the first post (1) and the second post (2) Perforating the slab 40 will be further included. In addition, the lower fixing device 4 having a larger size than the hole is used to prevent the vertically elevated posts 1 and 2 from falling freely through the holes drilled in the slab 40. It may further include a process of assembling in the field. Of course, the steel beams temporary support system can be reused while raising by one floor unit, but can also be installed while installing and rising in units of two or more floors. 8 shows that the steel beam temporary construction support system is raised in units of two floors.

In addition, as illustrated in FIG. 6, the method may further include installing auxiliary bands 60 to the posts 1 and 2 to surround the posts 1 and 2 and to prevent any deformation thereof. Can be.

In addition, according to the present invention, the method of constructing a steel beam temporary support system may further include installing a fixing plate 100 on top of the first post 1 and the second post 2.

In addition, as shown in FIG. 10, in order to construct the concrete core wall 20, formwork 21, such as euroform, is installed to the left and right and the wall reinforcement 22 is disposed in the formwork 21. At this time, when the U-trap (U-trap) is installed between the steel beams 10 and the wall reinforcing bar 22 in the core wall 20, and then cast concrete in the formwork 21 through the U-trap By fixing the steel beams 10 to the core wall 20, structural performance such as bending performance of the steel beams 10 may be improved. In order to install the U-trap as described above, the steel plate 90 is installed on the left and right sides of the web of the steel beam 10 in parallel to the formwork 21, and the U-trap of the U-trap on the opposite side of the U-trap Both ends are joined by welding or the like. In addition, it is preferable that a predetermined length of the flange of the steel beam 10 and the predetermined length of the steel plate is embedded in the formwork 21.

Posts of the steel beam temporary construction support system according to the present invention may adopt a circular steel pipe, a square steel pipe, a support bar shape according to the site situation and the structural characteristics of the structure, the steel beam temporary construction support system to prevent rust and use period It can be tinted with antirust coating to extend.

In the above, an embodiment using two posts 1 and 2 in the steel beam hypothesis supporting system of the present invention has been described by way of example, but depending on the site and structural characteristics, using three or more or a single post formed integrally It may also be possible.

Although the present invention has been shown and described with reference to certain preferred embodiments, the present invention is not limited to the above-described embodiments and the general knowledge in the technical field to which the present invention pertains without departing from the technical spirit of the present invention. Of course, various changes and modifications are possible. In addition, in order to explain the technical idea of the present invention, the accompanying drawings are partially enlarged and reduced, not drawn to scale.

1: first post
2: second post
3: Support
4: bottom fixing device
10: steel beam
11: temporary steel column
13a, 13b: bracket
20: core wall
21: core wall formwork
22: wall rebar
23a: band
23b: bracket
30: steel column
31: support block
40: slab
50: sliding groove
60: auxiliary band
70, 71, 72: connecting jack
90: connecting plate
91: U-trap
100: fixing plate

Claims

A steel beam temporary support system for constructing a steel beam extending from an external steel column to an internal core wall before construction of the core wall,
A first post and a second post, which face each other from a floor slab and are vertically spaced apart from each other to correspond to an interval of the steel beam;
A support for supporting the load of the steel beam between the first post and the second post,
Sliding grooves are provided on side surfaces of the first post and the second post,
The support is constructed in the form of a bar (bar) is steel beam temporary support system, characterized in that both ends are inserted into the sliding groove.

The method of claim 1,
Steel beam provisional support system, characterized in that the support block for preventing the free fall of the bar-shaped support is inserted into the sliding groove is installed in the sliding groove, respectively.

The method of claim 2,
Steel beam provisional support system, characterized in that the bottom of the first post and the second post further comprises a lower fixing device of the first post and the second post.

The method of claim 3,
And an auxiliary band configured to prevent any deformation of the first post and the second post while surrounding the outer circumferential surfaces of the first post and the second post.

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The method of claim 1,
Steel plates are installed in the left and right sides of the web at one end close to the core wall among the two ends of the steel beam in parallel with the formwork of the core wall.
Steel beam construction support system, characterized in that the U-trap for connecting the steel beam to the wall reinforcement of the core wall is coupled to the steel plate.

The method of claim 1,
Steel plate provisional support system, characterized in that the fixing plate is installed on the upper end of the first post and the second post is coupled to the first post and the second post to the fixing plate.

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In the construction method of the steel beam temporary construction support system for constructing a steel beam extending from the outer steel pillars to the inner core wall before construction of the core wall,
Constructing steel columns on the floor slab,
Constructing first and second posts spaced to correspond to the interval of the steel beams while extending in a vertical direction while facing each other from the bottom slab to support the steel beams;
Constructing a bar-shaped support between the first post and the second post to support the load of the steel beam;
Constructing sliding grooves on side surfaces of the first post and the second post, respectively;
And inserting both ends of the support bar having a bar shape into the sliding groove.

The method of claim 10,
And installing each of the support blocks in the sliding groove to prevent the bar-shaped support inserted into the sliding groove from falling freely.

The method of claim 11,
And installing a lower fixing device of the first post and the second post to the bottom of the first post and the second post.

The method of claim 12,
And installing an auxiliary band configured to prevent any deformation of the first post and the second post while surrounding the outer circumferential surfaces of the first post and the second post. .

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