KR102047897B1 - Constructing method of temporary earth retaining wall using strut connecting structure with reinforcement structure - Google Patents

Abstract

The present invention relates to a strut connecting structure with a reinforcing structure and a temporary earth retaining wall constructing method using the same. The strut connecting structure with the reinforcing structure is possible to simply connect struts capable of preventing bending and buckling. Moreover, in a temporary earth retaining wall constructing method which is applied to excavation work in the center of a city, the strut connecting structure is arranged to cross between earth retaining walls, thereby supporting the earth retaining walls.

Description

CONSTRUCTING METHOD OF TEMPORARY EARTH RETAINING WALL USING STRUT CONNECTING STRUCTURE WITH REINFORCEMENT STRUCTURE}

The present invention relates to a construction method for retaining bricks using a reinforcing structure having a reinforcing structure, and more particularly, to a temporary retaining construction method that can be easily connected to the reinforcement that can prevent bending and buckling, and also applied to urban excavation construction The present invention relates to a construction method of a temporary clam using a brace connection structure having a reinforcing structure which is disposed to cross between the retaining walls to support the retaining wall.

In the case of ground excavation for the construction of structures such as buildings including underground floors, subway construction, etc., it is common to perform temporary earthquake construction in order to maintain the safety of adjacent surrounding ground by preventing soil collapse and suppressing displacement of the back surface of the excavation.

In particular, in the case of near-city construction, the danger of settlement of adjacent ground due to ground excavation cannot be excluded, and attention must be paid to maintaining safety of the surrounding buildings.

The temporary earthquake construction is carried out by the brace method, earth anchor method, and soil nailing method, and the earth anchor method and soil nailing method may cause civil complaints, such as invading adjacent lands due to the limitation of the site space during urban construction. There are many problems, and therefore, additional legal and administrative procedures are required. Therefore, there is a problem of poor applicability in near urban construction, and in many cases, the temporary wall construction method using props is often applied.

The reinforcement method installs a band fixed horizontally with respect to the retaining wall, and installs a plurality of reinforcing beams intersecting between the retaining retaining walls or between adjacent folded retaining walls to act on the retaining wall. It is to support the earth pressure, which is made of H-shaped steel or steel pipe of round or square cross section.

Since the H-beams are different in structure from left to right and up and down, buckling may occur due to longitudinal compressive force, and a plurality of stiffeners are installed at regular intervals in order to prevent them.

However, the stiffener can prevent local buckling, but it does not reinforce the entire H beam longitudinal direction, so if the brace length is 10m or more, the H beam is used in two rows. This increases the amount of material used and has the disadvantage of extending the construction period.

Accordingly, a circular or rectangular cross sectional beam is used instead of the weak H-beam brace for buckling. An example of such a brace is shown in Patent Publication No. 10-1003039 (Patent Document 1). The reinforcement made of the steel tube of the rectangular cross section lifts the reinforcement horizontally while the whole steel pipe is wound and fixed using the sling bar or the shackle during the lifting process, so when the binding becomes unstable or the center of gravity changes rapidly during the lifting process, Lifting equipment was installed in the square steel pipe because there is a risk of safety accident due to the detachment of the brace from the equipment.

However, when the lifting equipment is provided outside the square steel pipe brace, the connection is not possible due to the lifting equipment when connecting the brace and the vertical H-file, and the inconvenience is caused by the lifting equipment when loading the square steel pipe.

Registered Patent Publication No. 10-1003039 (Announced on Dec. 31, 2010) “Temporary earthed rectangular steel pipe brace with lifting means”

The present invention has been conceived to solve the above problems, and a first object of the present invention is to provide a brace having a reinforcing structure for preventing bending and buckling.

The second object of the present invention, by integrating a plurality of steel pipe to the brace, the brace of the compressive strength is maximized, the structural cross-section is increased and the resistance to buckling is strengthened to connect the brace beam section having a two-row connection structure in one row It is to provide a connection structure of the support structure having a reinforcement structure to reduce the material by making a structure, and also to increase the interval of the support beam to shorten the construction time.

The third object of the present invention is to reduce the amount of material used, shorten the construction period, and widen the support interval, which facilitates the construction, and using the support structure of the support beam to facilitate the installation and dismantling using the wing of the H beam, It is to provide a temporary construction method.

According to a feature for achieving the object as described above, the seventh invention relates to a construction method for retaining wall using a brace support structure having a reinforcing structure, and for this purpose, digging the ground for constructing the retaining wall; and, Pressing and installing a plurality of H-beams on the ground at predetermined intervals on opposite wall surfaces of the excavated ground; and installing a plurality of belts in a direction orthogonal to the H-beams, wherein the belts are bolted to the H-beams. Engaging in a fastening manner; And continuously connecting a plurality of connected braces at a predetermined interval in the horizontal or vertical direction between the bands and the bands respectively disposed on the opposing wall surfaces, or between the preload jacks coupled to the bands and the bands located on the opposite side. Comprising, but the connected brace has an end plate formed to close the end on a plane perpendicular to the longitudinal direction at both ends, the end plates are arranged in a straight line along the longitudinal direction Two braces configured to abut each other; one or more pairs of end plate bolt holes formed to penetrate the end plates of the two braces disposed to abut each other; and two end plates disposed between the end plates of the two braces. A rubber plate having a pair of bolt through holes elastically in close contact therewith, and the end plate bolts provided at the two end plates. And by being fastened through the bolt through hole provided in the rubber pad fixing bolt for interlocking the two beotimbo and lock nut; And upper and lower connecting portions coupled from both upper and lower ends to the distal ends of the two braces fixed to each other to surround the two end plates fixed to each other, wherein the upper connecting portion and the lower connecting portion are formed on the upper surface of the distal end of the brace, or The connecting portion upper surface or the connecting portion respectively corresponding to the lower surface, the connecting portion side formed to correspond to the side surface of the distal end portion of the connecting portion upper surface or the lower side or upper side, respectively, from the lower end or the upper side of the connecting portion side A connecting bracket part extending outward with respect to the brace and a reinforcing bracket part formed to reinforce structural strength by connecting both ends of the connecting part side and the connecting bracket part to each other at both ends of the connecting part side and the connecting bracket part, One reinforcement bracket part An upper connection bolt hole is formed, and the upper connection portion and the lower connection portion are coupled to each other with the distal end portions of the two support beams interposed by the connection bolt and the connection nut, so that the distal ends of the support beams can be moved up, down, left and right in parallel And one or more pinholes are provided on one side of the connecting portion upper surface or the connecting portion, and one or more pinholes are provided on one side of the distal end portion, and a movement preventing hole corresponding to the pinhole is provided, and one or more of the upper or lower connecting portion is the pinhole. And a top horizontal rubber plate fixed to the distal end of the brace so that the longitudinal movement of the brace is prevented by a fixing pin inserted to penetrate the connection movement preventing hole, and the rubber plate is supported in contact with the upper surfaces of the two brace ends. Downward from the center of the top horizontal rubber sheet And a T-shaped cross section including a central vertical rubber plate formed between the two end plates, wherein the bolt through hole of the rubber plate is provided in the central vertical rubber plate, so that the upper horizontal rubber plate is disposed at the two end portions of the two support beams. When placed so as to contact the upper surface of the bolt through hole of the rubber plate is positioned to coincide with the end plate bolt holes of the two end plates, each brace consists of a pair of wings and a pillar portion connecting each wing In order to prevent buckling, a plurality of steel pipes are evenly disposed in both spaces around the pillar, and each steel pipe includes a buttress connection structure which is integrally formed with a buttress by welding. Having an end plate, the outer side of which is located longitudinally outward of the two braces As end plate, the outer end plate of the first brace is coupled to the band of the retaining wall fixture, the outer end plate of the second brace is coupled to the preceding load jack of the retaining wall fixture, and the outer end plate and the strip of the first brace And an outer rubber plate disposed between and between the outer end plate of the second brace and the preload jack.

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According to the construction method of the soil barrier construction using the brace support connection structure having a reinforcing structure according to the present invention as described above, by integrating a plurality of steel pipes into the brace, the force to sustain the compressive strength is maximized, the structural section is increased and the resistance to buckling is improved. It is strengthened so that two rows of braces can be configured in one row, which saves material and reduces construction time. In addition, due to the wing portion of the brace, there is an excellent effect that the brace support installation and dismantling work in the temporary site.

In addition, there is an excellent effect that can minimize the bolting point to shorten the working time and improve the work efficiency while connecting the braces to the same level as conventionally.

In addition, since the end plates of the braces are deformed and not flat, there is an excellent effect of being able to easily connect the braces while compensating for such defects even when the braces to be connected are difficult to be fixed in a straight line with each other.

In addition, the rubber plates interposed between the end plates have expansion / contraction properties, so that they have a shock absorbing effect and are evenly attached to the entire end plate surface, so that the concentrated stress can be dispersed despite the irregular surface of the end plates. Furthermore, there is an advantage such that it can absorb the effects of expansion or contraction caused by thermal deformation of the brace.

1 and 2 are a perspective view and a cross-sectional view showing various embodiments of the brace having a reinforcing structure according to the present invention.
Figure 3 is a perspective view showing an embodiment of the support structure according to the present invention.
4 is an exploded perspective view of the embodiment of FIG. 3.
FIG. 5 is an exploded perspective view showing a modification of FIG. 4. FIG.
Figure 6 is an exploded perspective view showing the connection portion of the brace support connection structure according to the present invention.
Figure 7 is a view showing the construction process of the support structure according to the present invention.
Figure 8 is a flow chart showing a construction method of retaining wall using the support structure according to the present invention.
9 and 10 are a side view (A) and a plan view (B), (B), (C), (D) showing an embodiment of the construction of the construction of the wall construction wall construction according to the construction method of retaining wall using the support structure according to the invention to be.

With reference to the accompanying drawings will be described in detail with respect to the reinforcement having a reinforcing structure according to the present invention.

1 and 2 are a perspective view and a cross-sectional view showing various embodiments of the brace having a reinforcing structure according to the present invention.

1 and 2, the present invention relates to the brace 100 having a reinforcing structure including a steel pipe 103 so that the resistance to buckling can be enhanced.

To this end, the brace 100 is composed of a pair of wing portions 102 and the pillar portion 101 connecting the respective wing portions 102, both sides space around the pillar portion 101 to prevent buckling As such, a plurality of steel pipes 103 are evenly arranged.

The steel pipe 103 is a stiffener for preventing local buckling mentioned in the prior art has been devised in view of the problem, and evenly arranged in both sides around the pillar portion 101, the brace 100 is A structure is provided that allows uniform reinforcement throughout the balance with weight.

At this time, each of the steel pipe 103 is integral to the brace 100 by welding, it may be configured to be arranged on the surface of the pillar portion 101 and / or on the surface of the wing 102.

The steel pipe 103 has a rectangular cross section in an embodiment, but may be configured in the form of an H beam having a smaller size than a circular shape and a brace.

Here, each of the steel pipes 103 may be disposed in the height direction on both sides of the column portion 101 as shown in FIGS. 1A and 1A to reinforce the pillar portion 101.

In addition, each of the steel pipe 103, as shown in (c) of FIG. 1, as well as both sides of the pillar portion 101, as well as a plurality arranged on the inner surface of the wing portion 102 to reinforce the wing portion 102 can do.

In addition, the steel pipe 103 is arranged to abut the two wing portions 102, as shown in (d), (e), (f) of Figure 2 to reinforce the pillar portion 101 and the wing portion 102 It can be configured to further increase the.

 The brace 100 in which the steel pipe 103 is integrated is maximized for the compressive strength, the structural cross-section of the brace is increased, and the resistance to buckling is strengthened. It can be, thereby reducing the material and the construction time is effective.

In addition, if the installation section of the brace 100 is long, of course, two connection structure can be configured as one connection structure.

Meanwhile, the steel pipe 103 has been described as being welded to the brace in an embodiment, but of course, it can be fixed by bolting or riveting.

With reference to the accompanying drawings will be described in detail with respect to the reinforcement structure having a reinforcing structure according to the present invention.

Figure 3 is a perspective view showing an embodiment of the support structure according to the present invention, Figure 4 is an exploded perspective view of the embodiment of FIG.

Prior to describing the structure of the reinforcement connecting structure according to the present invention, in the reinforcement described below in the reinforcement containing the steel pipe is described in detail above will be omitted.

The reinforcement connection structure according to the present invention is a rubber plate inserted between the two reinforcement 100 and the end plate 110 of the two reinforcement 100 are mutually connected in the longitudinal direction such that the end plate 110 of the distal end abuts ( 200, and the connection portion 300 is coupled to the distal end of the two braces and the rubber plate 200 to strengthen the coupling between the two braces.

In the illustrated embodiment, the brace 100 is made of H-shaped steel and is provided with an end plate 110 in the form of closing the distal end of the H-shaped steel at one or both longitudinal ends. That is, the end plate 110 is provided in the form of closing the distal end of the brace 100 in a plane perpendicular to the longitudinal direction of the brace 100 in one end or both ends of the brace 100. In the illustrated embodiment, the end plate 110 is formed of a rectangular plate member having the same size as a quadrangle formed by the cross section of the H-shaped steel constituting the brace 100. When the brace 100 is connected to both braces 100 on both sides, the end plate 110 is provided at both ends, one side is connected to the other brace 100 and the other side is fixed to the earth wall The end plate 110 is provided only at one end, and the other end may be configured in another form.

At least one pair of end plate bolt holes 113 formed to penetrate the end plate 110 is formed in the end plate 110. In the illustrated embodiment, it is shown that one end plate bolt hole 113 is provided on both sides of the web portion of the H-shaped steel so as to have a pair of end plate bolt holes 113 in total, but the required end portion is provided. Two or three pairs of end plate bolt holes 113 may be provided depending on the size, distribution, size of H-shaped steel, etc., between the plates.

The end plates 110 which are in contact with each other of the braces 100 to be connected are coupled to each other by fastening the fixing nut 119 to the fixing bolt 117 passing through the end plate bolt hole 113, thereby adjacent two braces 100. ) So that the braces 100 are fixed to each other.

In this case, when the end plate 110 is deformed, protruded, torn, or the like, the end plates 110 of the brace 100 to be connected may not be brought into uniform contact with each other, and thus the load of the load applied to the brace 100 may be reduced. There is a possibility of problems in the transmission (for example, stress may be concentrated at the contact portion of the end plate, which may cause further deformation or breakage). In addition, due to the geometrical non-uniformity caused by the deformation of the surface of the end plate 110, the end plates 110 to be contacted with each other and fixed to each other are coupled in a state in which there is a play that can move relative to each other within a predetermined range This may occur. For example, when a protrusion (not shown) is formed in the center of the end plate 110 of one side support 100 or the end plate 110 is bent in a convex shape as a whole, the end plate 110 of the other side support 100 ) Are not coupled to abut each other, and as mentioned above, a state in which there is a coupling clearance will occur.

In this case, since the load applied to one brace 100 is not properly transmitted to the adjacent brace 100 connected to the brace 100, the load is not uniformly supported throughout the brace 100, rather, for example two It may also result in damage to the connection between the brace 100.

If there is such a problem in the end plate 110 of the brace 100, replace the brace 100 itself with a problem-free material, or repair the brace 100 to remove the end plate 110 part after removing the product The problem can be solved by welding the end plates. However, such a solution may not be an excellent solution in terms of economical cost because it may incur additional costs or additional work time.

Accordingly, when at least the defect of the end plate 110 of the brace 100 is within a certain degree, it is necessary to solve the defects of the end plate 110 that can improve the workability by minimizing the occurrence of additional costs or additional working time Do.

In response to this, the present invention includes a rubber plate 200 disposed between the end plates 110 of the two braces 100 and elastically in close contact with both end plates 110. The rubber plate 200 may be evenly contacted with the end plate 110 evenly in spite of the deformation part such as being bent or protruding from the end plate 110 on both sides contacted due to its elasticity. The load transmitted to the end plate 110 through the 100 can be faithfully transmitted to the adjacent connected brace 110.

In addition, the gap between the end plates 110 of the braces 100 connected to each other is not uniform, so that the braces 100 are not connected in a straight line and some angle occurs so that the brace 100 does not play a role. Even if it is impossible, the rubber plate 200 is inserted between the end plates 110 of the two braces 100, and the two end plates 110 are coupled to each other by the fixing bolt 117 and the fixing nut 119. However, by adjusting the fastening degree of each fixing bolt 117 and the fixing nut 119 so that the two braces 100 are connected in a straight line to each other, the two braces 100 can be connected in a straight line. At this time, due to the material characteristics of the rubber plate, it is possible to obtain an effect such that the volume of the portion of the rubber plate portion of the more tightened portion actually moves to the less tightened region, despite the wide gap of the gap between the two end plates 110 In addition, the density distribution of the rubber plate 200 therebetween and the connection and support effects of the end plates 110 by the rubber plate 200 can be maintained uniformly.

In other words, the rubber plate 200 disposed between the end plates is uniformly attached to the entire surface of the end plate 110, so that the concentrated stress is dispersed despite the irregular surface of the end plate 110. In addition, the expansion / contraction of the rubber plate 200 is connected to the shock absorbing effect, and further has the effect of absorbing the effect of expansion or contraction due to the thermal deformation of the support 100. Furthermore, by providing the rubber plate 200 between the end plates 110, the end plates 110 of the brace 100 to be connected to prevent direct contact, deformation due to friction between the steel brace 100 There is also an effect to prevent.

In order for the rubber plate 200 to be positioned between the end plates 110 and to be coupled together with the end plates 110 by the fixing bolt 117 and the fixing nut 119, the rubber plate 200 has an end plate. At least one pair of bolt through holes 210 formed in a position, a size, and a number corresponding to the end plate bolt holes 113 of 110 are provided.

Accordingly, the fixing bolt 117 is the bolt through hole provided in the rubber plate 200 inserted between the end plate bolt hole 113 and the two end plate 110 provided in the two end plate 110 ( By passing through the fixing nut 119 through 210, the two end plates 110 are firmly coupled to each other, and thus the two adjacent braces 100 to which the two end plates 110 are attached are firmly connected to each other. Will be connected.

Hereinafter, a modification of the embodiment of FIG. 4 will be described with reference to FIG. 5.

FIG. 5 is an exploded perspective view showing a modification of FIG. 4. FIG.

Figure 5 is a side view (A) and a plan view (B) showing an embodiment of the construction of the construction of the wall construction wall according to the construction method of retaining wall using the support structure according to the present invention. When inserted between the 110, the bolt through hole 210 of the rubber plate 200 is aligned with the end plate bolt hole 113 of the end plate 110 and the fixing bolt 117 and the fixing nut 119 in that state. Keeping them until they can be a cumbersome task. Matching the position of the end plate bolt holes 113 of the two end plates 110 can be easily performed by having a suitable jig or pedestal that can support the braces 100, but for supporting the rubber plate 200. There are various problems, such as space constraints, to provide a jig or pedestal between the two end plates 110.

In order to solve this problem, in the present invention, the rubber plate 200 is extended in both horizontal directions from the upper end of the central vertical rubber plate 230 and the central vertical rubber plate 230 located between the two end plates 110 It may be formed to have a T-shaped cross section consisting of the upper horizontal rubber plate 250 formed. The rubber plate 200 is disposed so that the upper horizontal rubber plate 250 is in contact with the upper surface of the two end portions of the two support beams 100 connected to each other, and is supported by the upper surface of the distal end, and the central vertical rubber plate 230 is horizontal to the upper surface. Since the rubber sheet 250 is formed to extend downward from the center, there is an advantage that the distal end of the two braces 100 to be connected itself acts as a kind of jig or pedestal.

In this case, the bolt through hole 210 of the rubber plate 200 will be provided in the central vertical rubber plate 230, the position of the upper horizontal rubber plate 250 to contact the upper surface of the distal end of the brace 100 When placed, the bolt through hole 210 may be determined to coincide with the end plate bolt holes 113 of the two end plates 110.

Hereinafter, the connecting portion of the support structure according to the present invention will be described in detail with reference to FIG. 6 along with FIGS. 3 to 5.

Figure 6 is an exploded perspective view showing the connection portion of the brace support connection structure according to the present invention.

As described above, by the rubber plate 200 and the fixing bolt 117 and the fixing nut 119, the brace 100 having the end plate 110 with a partial deformation can be connected in a straight line. However, when considering the role of the brace 100 to support the retaining wall (not shown) to which a considerable earth pressure is applied, the rubber plate 200, the fixing bolt 117, and the fixing nut 119 alone, from the retaining wall Even with a significant load applied, the braces 100 connected to each other are kept in a straight line, which is somewhat difficult to expect to be able to support the load.

Accordingly, a means for reinforcing the connection portion of the adjacent secondary braces 100 is required, and in the present invention, as the means, the two braces 100 fixed to each other to surround the two end plates 110 fixed to each other. It is provided with a connecting portion 300 consisting of upper and lower connecting portions (310, 330) coupled from both sides of the upper and lower ends.

The upper connection portion 310 is formed so as to correspond to the side surface of the distal end portion 313 of the connecting portion upper surface 313 corresponding to the upper surface of the distal end of the brace 100, the lower side extending from both ends of the connection portion upper surface 313 Connection portion side 315, the connecting bracket portion 317 formed extending outward from the lower end of the connecting portion side 315 relative to the support 100, and the connecting portion side 315 and the connecting bracket portion 317 of It comprises a reinforcing bracket portion 319 formed to reinforce structural strength by connecting both ends of the connecting portion side 315 and the connecting bracket portion 317 at each end.

In addition, the lower connecting portion 330 is connected to the lower surface of the connecting portion 333 corresponding to the lower surface of the distal end 100, the upper side extending from both ends of the connecting surface (333) so as to correspond to the side surface of the distal end of the support 100 The connection portion side 335 is formed, the connection bracket portion 337 formed extending outward with respect to the brace 100 from the upper end of the connection portion side 335, and the connection portion side 335 and the connection bracket portion 337 It comprises a reinforcing bracket portion 339 formed to reinforce structural strength by connecting both ends of the connecting portion side 335 and the connecting bracket portion 337 at each end of the.

One or more connecting bolt holes 350 are formed in the reinforcing bracket portions 319 and 339, and the upper connecting portion 310 and the lower connecting portion 330 are formed by the connecting bolt 353 and the connecting nut 355. By being coupled to each other with the distal end of the brace 100 in between, it is possible to form an additional constraint between the distal ends of the two braces 100 connected. This means that the distal ends of the two braces 100 connected to each other are constrained from each other so as to be prevented from moving up, down, left and right in parallel or rotating.

Furthermore, the connection part upper surface 313 or the connection lower surface 333 is provided with one or more pinholes 357 on one side, and one end portion of the support 100 is connected to the movement preventing hole 120 corresponding to the pinhole 357. Is provided, by the fixing pin 359 is inserted through the pin hole 357 and the connection preventing movement hole 120, the upper connection portion 310 or the lower connection portion 330 in the longitudinal direction of the brace 100 Constrained so as not to occur to be fixed to the distal end of the brace 100. Constraints by the fixing pins 359 may be implemented only on one side of the upper connection part 310 or the lower connection part 330 as necessary, or may be implemented on both sides.

The fixing pin 359 is provided in the form of a threaded bolt instead of the pin shape, and a fixing pin nut (not shown) is fastened to an end of the fixing pin 359 inserted inside the H-beam. The connecting part 300 may be more firmly fixed to the brace 100 made of H-shaped steel by the fixing pin nut. In particular, when the fixing pin (359) is used for both the upper and lower connecting portions (310, 330), at least a fixing pin located at the lower side to prevent the falling or falling of the fixing pin (359) located on the lower ( 359) will be preferably configured in the form of bolts fastened by a fixing pin nut.

The connection part movement preventing hole 120 and the pin hole 357 should be formed at a position away from the center of the connection part upper surface 313 or the connection lower surface 333 so as not to interfere with the web portion of the H-shaped steel, the number of Can be determined between 1 and 4 considering the required shear strength. In the case of two, the connecting portion upper surface 313 or the connecting portion 333 may be formed in two places in the diagonal direction, and in the case of four, the connecting portion upper surface 313 or the connecting portion 333, one each near the four corners Can be formed.

Meanwhile, instead of the rubber plate 200, a foam tape (not shown) having an appropriate thickness may be used. The foam tape may be, for example, acrylic foam tape. Acrylic foam tapes have excellent heat / weather resistance along with excellent adhesion / adhesion, and have excellent flexibility and expansion / shrinkability, and are suitable for use in attaching to end plates 110 having damaged and irregular surfaces.

When the rubber plate 200 is replaced with a foam tape, the foam tape is first attached to one of the end plates 110 to be in contact with each other of the brace 100 to be connected, and then the other end plate 110 is foamed. Since it can work by attaching to the exposed adhesive side of the tape, unlike the rubber plate 200, the advantage that does not require a separate structure or a special structure for fixing the position of the foam tape relative to the brace 100 There is this. That is, in the case of the foam tape, auxiliary supporting means such as the upper horizontal rubber plate 250 of the rubber plate is unnecessary.

In addition, the foam tape has a bolt passing hole (not shown) corresponding to the end plate bolt hole 113 of the end plate 110, similarly to the bolt through hole 210 of the rubber plate 200, thereby fixing bolt 117. It may be fastened to the fixing nut 119 without being unnecessarily adhered to the foam tape to ensure that the end plates 110 on both sides are firmly fixed.

Alternatively, instead of using the fixing bolt 117 and the fixing nut 119, but not the fixing bolt 117 and the fixing nut 119 to each other to be bonded to each other only by the tape, then the end portions of the two brace 100 by the connecting portion 300 By wrapping and fixing together, the two braces 100 may be kept in a straight line, but this configuration will be of limited use because the connection strength of the connection between the end plates 110 is relatively low. .

The foam tape does not replace the rubber plate 200 entirely, and it may be possible to utilize the foam tape in such a manner that the foam tape is partially padded on the rubber plate 200 while using the rubber plate 200 as described above. In this case, the foam tape may be attached to both sides of the central vertical rubber plate 230 of the rubber plate 200 to be adhered to the end plates 110 of the brace 100 on both sides. This configuration has the advantage of utilizing both the properties of the foam tape and the properties of the rubber plate, but there is a disadvantage that the work process step is increased and the cost is somewhat increased.

Hereinafter, with reference to Figures 7 to 9 looks at the construction of the earthenware temporary construction using the support structure.

7 is a view showing the construction process of the support structure according to the present invention, Figure 8 is a flow chart showing the construction method of the earthquake temporary construction using the support structure according to the present invention, Figures 9 and 10 are the support beam according to the present invention Side view (A) and a plan view (B), (B), (C), (G) showing an embodiment of the construction of the wall construction wall construction constructed according to the construction method of the construction wall construction using the connection structure.

The support structure according to the present invention can be constructed in the following order.

First, the two braces 100 to be connected to each other are placed on the jig or pedestal according to the position and angle that can be connected to each other. If the jig or pedestal is not suitable, it can be placed on a flat surface. At this time, the end plates 110 of the two braces 100 will have to place the two braces 100 to be spaced apart from each other leaving a space enough to insert the rubber plate 200 (S110, Fig. 7 ( See A).

Subsequently, a rubber plate 200 having a T-shaped cross section is inserted between the two end plates 110 so that defects of the end plate 110 at the distal end of the brace 100 may be compensated for (S120, FIG. 5 (A) and FIG. 5 (B)).

Next, the fixing bolt 117 and the fixing nut 119 are fastened to firmly couple the end plates 110 and the rubber plate 200 (see S130, FIG. 7 (A) and FIG. 7 (B)).

As a result, the direct connection between the two braces 100 is completed, and now combines the connecting portion 300 to reinforce the connecting portion. That is, the upper connecting portion 310 and the lower connecting portion 330 at the upper and lower ends of the two braces 100, respectively, and the upper connecting portion 310 and the lower connecting portion 330 by connecting bolts 353 and connecting nut 355, respectively. ) To reinforce the distal end of the two braces 100 (see S140, Figure 7 (C) and Figure 7 (D)).

Finally, by fixing the connection portion 300 to the brace 100 with a fixing pin (359), the connection portion 300 is restrained from leaving the distal end of the two brace 100 (S150, Figure 7 (C) ) And FIG. 7 (D)).

On the other hand, although not shown in Figure 7, before the step S110, the two braces, respectively, in order to prevent the buckling, the two sides spaced around the column portion evenly arranged a plurality of steel pipes, each steel pipe is welded to the braces to be integrated The process must be preceded.

Through the above process, the embodiment of the construction method of the earthenware temporary construction using the support structure of the present invention is as shown in FIG.

In the illustrated embodiment, a strip 420 made of H-shaped steel and having a stiffener 430 welded between flanges of the H-shaped steel and supported from below by a hanger 440 is transverse to the retaining wall 410. Is fixed in the direction, and the outer end plate 460 of the first brace 100a made of H-shaped steel is coupled to an outer surface of the strip 420 (a surface located away from the earth wall 410), whereby the first brace ( 100a is fixed to the strip 420 in a form extending in a direction away from the first retaining wall 410a.

The second strip wall 410b located on the opposite side of the first retaining wall 410a is similar to the above, and the strip 420 is fixed to the second retaining wall 410b in the horizontal direction, and is made of H-shaped steel. The outer end plate 460 of the brace 100b is not directly coupled to the outer surface of the strip 420, but is coupled via a prestress jack 450. Advance load jack 450 completely removes the gap between the connection portion between the support beam 100 and the strip 420 and the connection portion between the support beams 100 by applying sufficient congratulations to the support beam 100, as is well known. On the other hand it is a device to be applied a predetermined preceding load to the retaining wall (410).

Before applying the preceding load by the preceding load jack 450, the braces (100a, 100b) of both sides are connected by the brace support connection structure according to the present invention described above, the connection bolt 353 and the connection nut 350 By the coupling of the upper connecting portion 310 and the lower connecting portion 330 by the fixing pin (359) is a structure in which the connecting portion 300 is fixed to the braces (100a, 100b) as shown. In FIG. 7 (A), the connecting portion 300 is shown as if it is transparent or translucent to show the end plate 110 of the two supports 100a and 100b and the rubber plate 200 inserted between the end plates 110. Although illustrated as being, this is merely for convenience of the city and does not limit the configuration of the present invention.

On the other hand, in the embodiment shown in Figure 9, the outer end plate 460, which is the end plate 110 of the two braces 100 located in the longitudinally outer side of the two braces 100 connected to each other is a strip of the wall construction The outer end plate 460 is also coupled to abut the 420 or the preceding load jack 450, the deformation in the repeated use, like the inner end plate 110 is also connected to each other by the connecting portion 300 As a result, the same problem may occur when the end plates 110 are deformed in the same manner as the above-described deformation occurs when the band 420 or the preload jack 450 is coupled to each other.

In order to solve this problem, between the outer end plate 460 and the strip 420 of the first brace 100a, the outer end plate 460 and the preceding load jack 450 of the second brace 100b The outer rubber plate 470 having the same or similar shape as the rubber plate 200 may be further provided between the two layers. With respect to the outer rubber plate 470, the above description and the limitations with respect to the rubber plate 200 may be applied in the same or with the appropriate modification.

That is, even when the first and second braces 100a and 100b are connected to the strip 420 or the preceding load jack 450, the first and second braces are similar to those of the embodiment shown in FIG. 2 or 3. The outer end plate 460 of (100a, 100b) is joined to the side of the strip 420 or the preceding load jack 450 and fastened with bolts, at which time the outer rubber plate 470 is irregular irregular brace outer end plate 460 The role of filling the lifting part by the can strengthen the connection area.

In addition, as shown in Figure 10, even in the strip of various forms can be installed effectively the brace 100.

While the above has been described with reference to the accompanying drawings the embodiment of the support structure and the belt-supported construction method using the connection structure according to the present invention, this embodiment is to be interpreted as limiting the scope of the present invention as an example. It should be noted that the scope of the present invention is defined only by the following claims.

100: brace
100a: first brace 100b: second brace
101: pillar portion 102: wing portion
103: steel pipe 110: end plate
113: end plate bolt hole 117: fixing bolt
119: fixing nut 120: connection movement prevention hole
200: rubber plate 210: bolt through hole
230: center vertical rubber plate 250: top horizontal rubber plate
300: connection part 310: upper connection part
313: connecting portion side 315: connecting portion side
317: connecting bracket portion 319: reinforcing bracket portion
330: lower connecting portion 333: connecting portion
335: side of the connection portion 337: connection bracket portion
339: reinforcement bracket 350: connection bolt hole
353: Connection bolt 355: Connection nut
357: pinhole 359: fixing pin
410: retaining wall 410a: first retaining wall
410b: second retaining wall 420: strip
430: Stiffener 440: Hanger
450: preload jack 460: outer end plate
470: outer rubber plate

Claims (8)

delete delete delete delete delete delete Excavating the ground for construction of the temporary wall construction;
Pressing and installing a plurality of H-beams on the ground at predetermined intervals on opposite wall surfaces of the excavated ground;
Installing a plurality of strips 420 in a direction orthogonal to the H-beams, the strips 420 being coupled to the H-beams in a bolted manner; And
A plurality of connected braces between the band 420 and the band 420 respectively disposed on the opposing wall, or between the preload jack 450 coupled to the band 420 and the band 420 located on the opposite side. Continuously arranging 100 in a horizontal direction at a predetermined interval;
Including but not limited to,
The connected brace 100 is,
Two braces 100 having end plates 110 formed to close the ends on a plane perpendicular to the longitudinal direction at both ends, and arranged in a straight line along the longitudinal direction such that the end plates 110 abut each other. );
One or more pairs of end plate bolt holes 113 formed to penetrate the end plates 110 of the two braces 100 disposed to abut each other;
A rubber plate (200) disposed between the end plates (110) of the two braces (100) to be elastically in close contact with both end plates (110) and having at least one pair of bolt through holes (210);
The end plate bolt hole 113 provided in the two end plates 110 and the bolt through hole 210 provided in the rubber plate 200 is fastened to fasten the two braces 100 to mutually fixed Bolt 117 and fixing nut 119; And
To surround the two end plates 110 fixed to each other, the upper and lower connecting portions 310 and 330 coupled from both sides of the upper end and the lower end of the two braces 100 fixed to each other;
The upper connecting portion 310 and the lower connecting portion 330, the connecting portion upper surface 313 or connecting portion 333 corresponding to the upper surface or the lower surface of the distal end 100, respectively, the connecting portion upper surface 313 or lower surface Connecting side surfaces 315 and 335 extending downwardly or upwardly from both ends of 333 to correspond to the side surfaces of the distal ends of the brace 100, the lower and upper ends of the connecting side surfaces 315 and 335 with respect to the brace 100, respectively. Connection brackets 317 and 337 extending in an outward direction, and both ends of the connection side surfaces 315 and 335 and the connection bracket parts 317 and 337 at both ends of the connection side surfaces 315 and 335 and the connection bracket portions 317 and 337, respectively. Reinforcing brackets formed to reinforce the strength (319,339) including,
One or more connection part bolt holes 350 are formed in the reinforcing bracket parts 319 and 339, and the upper connection part 310 and the lower connection part 330 are formed by two connection bolts by the connection part bolt 353 and the connection part nut 355. By being coupled to each other with the distal end portion of 100) between the distal end portion of the brace 100 is prevented from moving up and down parallel left or right,
One or more pinholes 357 are provided at one side of the connection part upper surface 313 or the connection bottom surface 333, and one connection preventing movement hole 120 corresponding to the pinhole 357 is provided at one end of the distal end 100. At least one of the upper connecting portion 310 or the lower connecting portion 330 is inserted into the pinhole 357 and the connecting portion movement preventing hole 120 by a fixing pin 359 inserted into the longitudinal direction of the brace 100. Is fixed to the distal end of the brace 100 to prevent movement,
The rubber plate 200 is formed to extend downward from the center of the upper horizontal rubber plate 250 and the upper horizontal rubber plate 250 which is supported in contact with the upper surface of the two end portions of the two support (100) and between the two end plates (110) It is made to have a T-shaped cross-section including the central vertical rubber plate 210 is located in, the bolt through hole 210 of the rubber plate 200 is provided in the central vertical rubber plate 210, the upper horizontal rubber plate ( When the 250 is placed in contact with the upper surface of the distal end of the two support (100) so that the bolt through hole 210 of the rubber plate 200 coincides with the end plate bolt hole 113 of the two end plate 110 Are located,
The two braces 100 are composed of a pair of wing portions 102 and pillar portions 101 connecting the respective wing portions 102 to both sides of the pillar portion 101 to prevent buckling. Is a plurality of steel pipes 103 are equally arranged, each steel pipe 103 includes a connection structure of the support 100 is made integrally to the support 100 by welding,
The two braces 100 are each provided with the end plate 110 at both ends,
As the outer end plate 460 located in the longitudinal outer side of the two braces 100 connected to each other, the outer end plate of the first brace 100a is coupled to the strip 420 of the retaining wall temporary fixture, the second brace 100b The outer end plate 460 of the) is coupled to the preceding load jack 450 of the retaining wall temporary fixture,
An outer rubber plate disposed between the outer end plate 460 and the strip 420 of the first brace 100a and between the outer end plate 460 and the preceding load jack 450 of the second brace 100b, respectively. Tempered temporary construction method using a support structure, characterized in that it further comprises a 470. delete

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