JP3865466B2 - Support structure and its assembling method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a support structure for temporarily supporting a structure such as a viaduct on a highway, a roof of a gymnasium, or a digger.
[0002]
[Prior art]
When building various structures such as viaducts on expressways, gymnasium roofs, slab floors and ceilings on the upper floors, in order to temporarily support these structures until the completion of the construction, support structures or support structure What is called a thing is used.
[0003]
The support structure has four struts formed as a whole, and a member that connects and reinforces adjacent struts among these struts, and has conventionally been easily assembled. That has a quadrilateral frame and pillars connected to the four corners of the frame, and the frame and the pillars are alternately stacked to assemble a support structure of a predetermined length. There is.
[0004]
[Problems to be solved by the invention]
In consideration of reducing the manufacturing cost of support structures, it is important to be able to construct support structures with a small number of parts, and to reduce the construction costs of various structures such as viaducts. In order to do this, it is important to be able to assemble the support structure quickly in a short time.
[0005]
An object of the present invention is to enable a support structure to be assembled quickly.
[0006]
The above and other objects and novel features of the present invention will be apparent from the description of this specification and the accompanying drawings.
[0007]
[Means for Solving the Problems]
Of the inventions disclosed in this application, the outline of typical ones will be briefly described as follows.
[0008]
That is, the support structure of the present invention includes four connecting rods arranged in the vertical direction at the vertex positions of the quadrilateral, frame rods that connect these connecting rods to each other, and A plurality of connecting frames that protrude from both end faces of the connecting bar and have a fitting portion having a smaller diameter than each of the connecting bars, the connecting frame arranged on the upper side, and the connection arranged on the lower side A plurality of strut pipes that are connected to the respective fitting portions of the frame and that are connected via the connecting bar members, and a lower side that is connected via the four strut pipes. A plurality of struts for connecting the connecting frame and the upper connecting frame, and four fitting portions projecting to one end side of the four connecting rods in each connecting frame and the other end side Four protruding fittings The projection length of two fitting portions and the projection length of the other two fitting portions among the four fitting portions of any one of the portions are made different from each other, and the connection frame is connected to the upper side of the four support pipes. When the fitting portion having a long protruding length is fitted to the two strut pipes, the two fitting portions fitted to each other are guided to the two strut pipes. The short fitting portion is assembled with the other two support pipes so as to be assembled .
[0009]
The support structure according to the present invention includes two fitting parts protruding to one end side of the four connecting rods and four fitting parts protruding to the other end side of each of the connecting frames. The protruding length of one fitting portion is different from the protruding length of the other two fitting portions. In the support structure of the present invention, the two fitting parts having a long protruding length and the two fitting parts having a short protruding length are provided at diagonal positions of the connecting frame. It is characterized by that.
[0010]
In the present invention, the connecting rods and the column pipes are alternately connected to form the connecting columns, and the connecting rods are connected to each other by bracing. It is possible to assemble a support structure.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0012]
FIG. 1 is a front view showing a state in which a highway viaduct is built using a plurality of support structures according to an embodiment of the present invention, and FIG. 2 is a support structure shown in FIG. It is a partially-omission perspective view which expands and shows one of the things.
[0013]
FIG. 1 shows a state in which a viaduct 12 is supported by a support structure 11 installed in a base 10 while it is being built. Each support structure 11 includes a plurality of connecting frames 13 and The support pipe 14 fitted between the upper and lower connecting frames 13 and the brace 15 connecting the upper and lower connecting frames 13 are provided. The connecting frame 13 has the same structure from the bottom to the top.
[0014]
2, four lower jacks 21 are attached to the lowermost connection frame denoted by reference numeral 13a. Each lower jack 21 includes a pedestal 22 and a screw member 23 fixed thereto. The lower jack 21 has an upper portion of the screw member 23 fitted to the connecting frame 13a.
[0015]
2, four upper jacks 25 are attached to the uppermost connection frame denoted by reference numeral 13b. Each upper jack 25 includes a support bracket 26, a screw member 27 fixed to the support bracket 26, and the screw member 27. An adjustment handle 28 screwed to the screw member 27 is provided, and the lower jack portion of the upper jack 25 is fitted. The viaduct 12 is supported by the support structure 11 via a beam member or the like disposed on the support bracket 26.
[0016]
FIG. 3 is a view showing any one of the plurality of connecting frames 13 shown in FIGS. 1 and 2, and each connecting frame 13 includes two frame bars 31a parallel to each other, The frame rods 31a have two frame rods 31b that are perpendicular to each other and parallel to each other, and each frame rod 31a, 31b has the same length L at each end. Are connected by a connecting bar 32 having
[0017]
In this way, the quadrilateral frame 33 is formed in which the connecting rods 32 are attached to the four corners so as to face each other in the vertical direction. The connecting frame 32 is configured by connecting the connecting bars 32 to each other by the frame bars 31a and 31b.
[0018]
The four frame rods 31a and 31b and the four connecting rods 32 constituting the frame 33 are each made of a circular pipe having an outer diameter of about 5 cm, and each of the connecting rods 32 is hollow. Bar is inserted and fixed. With this hollow bar, fitting portions 34 a, 34 b, 35 a, 35 b having a smaller diameter than the outer diameter of the connecting bar 32 protrude from both end surfaces of the connecting bar 32.
[0019]
Of the four fitting portions 34a and 35a protruding from the four connecting rods 32 to the upper side of the connecting frame 13, the two fitting portions 34a are longer than the other two fitting portions 35a. Similarly, of the four fitting portions 34b and 35b protruding from the four connecting rods 32 to the lower side of the connecting frame 13, the two fitting portions 34b are longer than the other two fitting portions 35b. It has become. The longer protruding length E1 is set, and the shorter protruding length E2 is set. In the illustrated case, E1 is about 10 cm, and E2 is about half of that. The length L of the connecting bar 32 is about 20 cm.
[0020]
Two upper and lower fitting portions 34 a and 34 b having a long protruding length and two upper and lower fitting portions 35 a and 35 b having a short protruding length are provided at diagonal positions of the connecting frame 13, respectively. The connecting frame 13 shown in the figure is symmetrical in the vertical direction with respect to the longitudinal center portion of the connecting bar 32, and the fitting portion denoted by reference numeral 34 has a longer protruding length and is denoted by reference numeral 35. The fitted part has a short protruding length. In FIG. 3, the fitting portion protruding upward is indicated with a symbol a for convenience, and the fitting portion protruding downward is indicated with a symbol b for convenience. When 13 is turned upside down from the state shown in FIG. 3, the fitting part protruding downward is the upper side, and the fitting part protruding upward is the lower side.
[0021]
FIG. 4 shows a modified example of the connecting frame 13. In this case, by inserting a bar having the same length into each connecting bar 32, diagonal lines are formed on the upper side and the lower side of the connecting frame 13. The fitting portions 34a and 34b having a long protruding length and the fitting portions 35a and 35b having a short protruding length are provided at the position.
[0022]
As shown in FIG. 5, the two frame rods 31 a that are parallel to each other have a longitudinal center G of the connecting rod 32 relative to the other two frame rods 31 b that are parallel to each other. Are shifted by the same distance F to the opposite side. Thereby, the space of the reinforcement board 36 attached between the both ends of each frame bar 31a, 31b and the connection bar 32 is securable. However, you may make it attach the both ends of each frame bar 31a, 31b to the position of the center part G of the connection bar 32. FIG. The width D of the connection frame 13 shown in FIG. 5 is about 90 cm in the case of illustration, and is square in the case of illustration, but the connection frame 13 may be rectangular.
[0023]
Two engaging pins 37 are attached to each connecting bar 32 so as to substantially coincide with the central portion G in the longitudinal direction of the connecting bar 32. Two engaging pins 37 provided on each connecting bar 32 in pairs form a phase of 90 degrees and project outward from the connecting frame 13. The engaging pin 37 is provided with a hook protruding by a spring member.
[0024]
The support pipes 14 can be respectively fitted to the fitting parts 34a, 34b, 35a, 35b of the upper and lower four parts of the connection frame 13, and as shown in FIG. The support pipe 14 is fitted only to the four fitting portions 34a and 35a, and the support pipe 14 is fitted only to the lower four fitting portions 34b and 35b of the uppermost connection frame 13. Thus, the column pipes are respectively fitted to the upper and lower fitting portions 34a, 34b, 35a, and 35b in the connection frame 13 at the intermediate position.
[0025]
The outer diameter of each column pipe 14 is substantially the same as the outer diameter of the connecting bar 32, and the inner diameter is substantially the same as the outer diameter of the fitting portion. Accordingly, in the assembled state, the support pipes 14 and the connecting rods 32 have the same outer diameter as a whole and are alternately connected in the vertical direction to form the connecting struts. It is possible to manufacture the connecting bar 32 and the support pipe 14 by using them. In addition, although the support | pillar pipe 14 shown in figure is about 130 cm in length, it can be made into arbitrary length.
[0026]
By connecting the connection frame 13 and the support pipe 14, the connection rod 32 and the support pipe 14 are alternately connected to form four connection support pillars, and these connection support pillars form the whole as shown in FIG. 2. In particular, a support structure having a quadrangular cross section is assembled. In order to connect the adjacent connection frames 13 up and down via the support pipes 14 in correspondence with the four outer surfaces of the support structure, FIG. The brace 15 shown in FIG.
[0027]
Engagement holes 38 are formed at both ends of the brace 15, and by engaging the engagement pins 37 with the engagement holes 38, as shown in FIG. Two braces 15 are attached so as to intersect each other. Accordingly, a total of eight bracings 15 are attached between the connecting frames 13 that are vertically adjacent to each other via the support pipes 14. Since the engaging pin 37 is provided at the center in the longitudinal direction of the connecting bar 32, the distance between the connecting frames 13 that are vertically adjacent to each other via the support pipe 14 is the same, and all the struts of the same length are used. 15 can be used. The brace 15 can be easily detached from the engagement pin 37 by being provided on the engagement pin 37 and pressing a hook.
[0028]
The upper connection frame 13 is attached to the upper end of each column pipe 14 in a state in which the column pipe 14 is fitted to the respective fitting portions 34 a and 35 a provided on the upper side of the lower connection frame 13. When connecting, as shown in FIG. 2, the scaffolding plate 39 is attached to the lower connecting frame 13, and an operator stands on the scaffolding plate 39 to perform the connecting operation. In FIG. 2, a state in which the scaffold plate 39 is attached only to the lowermost connection frame 13 a is shown, but the scaffold plate 39 is also attached to the other connection frames 13. However, the scaffold plate 39 may be removed after the connecting work of the connecting frame 13 is completed.
[0029]
In that case, each of the lower fitting portions 34b, 35b of the upper connection frame 13 will be fitted to the support pipe 14, and in a state where the operator holds the upper connection frame 13 horizontally, As shown in FIG. 6, the gap V <b> 1 between the two fitting portions 34 b having a long protruding length and the upper end portion of the support pipe 14 is formed between the two fitting portions 35 b having a short protruding length and the upper end portion of the support pipe 14. It becomes narrower than the gap V2.
[0030]
Therefore, when the connecting frame 13 is lowered as it is, the two fitting portions 34b having long protrusions positioned diagonally are first fitted into the upper ends of the two support pipes 14. The projecting lengths of the four fitting portions may all be the same, but in that case, the operator simultaneously fits the four fitting portions to the four support pipes 14 at the same time. On the other hand, as shown in the figure, if the lengths are different, the fitting portion 34b is fitted to only two support pipes 14 in one fitting operation. It can be done quickly by one operator.
[0031]
After fitting the fitting portions to the two support pipes 14, the connecting frame 13 is gradually moved downward so that the other two fitting portions 35b having a short projecting length are moved to the other two. The support pipe 14 is fitted. At this time, since the already fitted fitting portion 34b is guided in the vertical direction along the support pipe 14, the operator places the other two support pipes 14 directly below the fitting portion 35b. Thus, the fitting portion 35b can be fitted to the support pipe 14 quickly and reliably.
[0032]
In this way, the lengths of the fitting portions are different so that the fitting work for the two support pipes 14 is performed as one work unit without simultaneously performing the connection work of the connection frame 13 to the four support pipes 14. Then, the support structure can be quickly assembled by one worker.
[0033]
Next, a procedure for assembling a support structure in order to construct a structure such as a viaduct will be described.
[0034]
First, four lower jacks 21 shown in FIG. 2 are arranged on the base 10, and the upper end portions of the screw members 23 of the lower jacks 21 are respectively connected to the lower fitting portions 34b of the lowermost connecting frame 13a. , 35b. Since the fitting portions have different protruding lengths downward, the adjustment handle 24 is rotated to adjust the position of the adjustment handle 24 so that the connecting frame 13 is horizontal. As a result, the fitting portion comes into contact with the cylindrical center portion of the adjustment handle 24, and the connecting frame 13 becomes horizontal.
[0035]
Next, the support pipes 14 are fitted into the upper fitting portions 34a and 35a of the lowermost connecting frame 13a, respectively. At that time, the scaffold plate 39 is placed on the lowermost connecting frame 13a, and an operator stands on the scaffolding plate 39 to perform the connecting work of the support pipes 14.
[0036]
After the support pipe 14 is attached in this manner, the operator holds the upper connection frame 13 on the hand and lifts it in a substantially horizontal state above the support pipe 14. At this time, the fitting part 34b provided in a diagonal line and projecting long or holding the part of the connecting bar 32 to which the fitting part 34b is attached is held with both hands, and the two fitting parts 34b are sequentially or almost simultaneously two struts. Fit into the pipe 14.
[0037]
After fitting the fitting part 34b which protruded long with respect to the two support pipes 14 to a certain depth, the operator attaches the other two fitting parts 35b having the short protrusion length to the other two supports. The pipes 14 are fitted sequentially or almost simultaneously. At that time, the two fitting portions 34b that have already been fitted are moved downward along the support pipe 14, so that the support pipe 14 to which the fitting portion 34b is fitted is moved downward. To guide you.
[0038]
As described above, in the fitting operation for fitting the four fitting portions to the four support pipes 14, the two fitting portions are set as one unit, sequentially or almost simultaneously with a predetermined time difference. Since the fitting work can be performed, the fitting work can be quickly performed as compared with the case where the four fitting portions have the same protruding length.
[0039]
When the connection work of the connection frame 13 to the four support pipes 14 is completed, the lowermost connection frame 13 a and the upper connection frame 13 are connected by the brace 15. In this manner, when the upper connection frame 13 is assembled on the lowermost connection frame 13a via the support pipe 14, the support pipe 14 is attached to the upper connection frame in the same manner as described above. As described above, the connecting frame 13 and the support pipe 14 are sequentially assembled to assemble a support structure having a predetermined height.
[0040]
As shown in FIG. 2, an upper jack 25 is mounted on the fitting portion of the uppermost connection frame 13b, and a beam member is placed thereon, and a building such as a viaduct is constructed.
[0041]
In addition, the assembly work is performed by assembling the connection frame and the support columns in a horizontal state by a predetermined number of stages without assembling them in the vertical direction from the beginning as described above, and then setting them vertically with a crane or the like. You may do it.
[0042]
FIG. 7 is a view showing a state in which a plurality of support structures of the present invention are arranged adjacent to each other. In this case, the scaffold plate 39 used in the assembly operation of the connecting frame 13 is used to A working channel can be formed. In that case, the brace 15 is attached to only two sides.
[0043]
About the protrusion length of the fitting part in the support structure of embodiment mentioned above, if a protrusion length can be divided into two groups, long and short, a fitting part with a long protrusion length and a short fitting part In addition to these two types, all four fitting portions may be set to different lengths. In that case, the two fitting parts that are different from each other but have a longer protruding length are fitted first, and the other two fitting parts that are different from each other but have a shorter protruding length are next. Will be fitted.
[0044]
Moreover, in the case of illustration, about each fitting part provided in the vertex position of the quadrilateral of the connection frame, a long fitting part and a short fitting part are provided at diagonal positions. However, each may be provided at the same side position.
[0045]
FIG. 8 (A) is a perspective view showing a support structure according to another embodiment of the present invention, and FIG. 8 (B) shows a connecting rod used for the support structure in FIG. 8 (A). It is a perspective view shown.
[0046]
In this support structure, the connecting bar 32 in the above embodiment is connected by frame bars 31a and 31b, whereas the connecting bar 32 is separated and independent. That is, as shown in FIG. 8 (B), each connecting bar 32 is formed of a hollow pipe material, and the fitting part 40 having a smaller diameter than the outer diameter of the connecting bar 32 from both ends thereof. Is protruding. The lengths of the fitting portions 40 protruding from the both end portions may be different from each other, or may be the same length.
[0047]
Four engaging pins 37 are attached to the connecting bar 32 at the center in the longitudinal direction, and each engaging pin 37 forms an angle of 90 degrees with each other. However, the two engagement pins 37 may be attached at an angle of 90 degrees alternately without attaching the four engagement pins 37.
[0048]
The support structure shown in FIG. 8 (A) is alternately connected to the connecting bar 32 shown in FIG. 8 (B) and the above-described support pipe 14 to form a connecting support, and the connection support is composed of a pair of four connecting supports. As a support structure. Each connecting bar 32 in a pair of connecting struts is a connecting bar 32 in other connecting struts adjacent to each other, with the connecting bars of the adjacent connecting struts being in the same vertical position. The connecting rods 32 adjacent to each other in the vertical direction are connected by the brace 15. In this way, the support structure shown in FIG. 8A is configured.
[0049]
As mentioned above, the invention made by the present inventor has been specifically described based on the embodiment. However, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. Needless to say.
[0050]
【The invention's effect】
Of the inventions disclosed in the present application, effects obtained by typical ones will be briefly described as follows.
[0051]
(1) Since the work of assembling the connecting frame on the four support pipes can be easily performed by one operator, the assembly work of the support structure can be performed quickly in a short time. Become.
[0052]
(2) Since the support structure can be assembled with a small number of parts such as a connection frame having the same structure and a column pipe of the same size, a low-cost support structure can be obtained.
[Brief description of the drawings]
FIG. 1 is a front view showing a state in which a viaduct is built using a support structure according to an embodiment of the present invention.
FIG. 2 is a partially omitted perspective view showing the support structure shown in FIG. 1 in an enlarged manner.
FIG. 3 is an enlarged perspective view showing the connecting frame shown in FIG. 2;
FIG. 4 is an enlarged perspective view showing another type of connecting frame.
5 is a cross-sectional view taken along line 5-5 in FIG.
FIG. 6 is a perspective view showing a state in which a connecting frame is assembled to a support pipe.
FIG. 7 is a perspective view showing a case where a plurality of support structures according to the present invention are arranged adjacent to each other to form a passage therein.
8A is a perspective view showing a support structure according to another embodiment of the present invention, and FIG. 8B shows a connecting rod in the support structure shown in FIG. It is a perspective view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Base 11 Supporting structure 12 Viaduct 13 Connection frame 13a Bottom connection frame 13b Upper connection frame 14 Strut pipe 15 Bracing 21 Lower jack 25 Upper jack 31a, 31b Frame bar 32 Connection bar 33 Frame 34a , 34b Fitting portion 35a, 35b Fitting portion 36 Reinforcement portion 37 Engagement pin 38 Engagement hole 39 Scaffold plate 40 Fitting portion

Claims (4)

Four connecting rods arranged at the apex position of the quadrilateral, respectively, facing up and down, frame rods connecting these connecting rods to each other, and protruding from both end faces of each connecting rod A plurality of connecting frames having a fitting portion having a smaller diameter than each of the connecting bars;
A plurality of strut pipes that are connected to the fitting portions of the connecting frame disposed on the upper side and the connecting frame disposed on the lower side and that are connected via the connecting bar material; ,
A plurality of braces connecting the lower connection frame and the upper connection frame connected via the four support pipes;
Two of the four fitting portions of any one of the four fitting portions projecting to one end portion of the four connecting rod members and the four fitting portions projecting to the other end portion of each of the connecting frames. The protrusion length of one fitting portion is different from the protrusion length of the other two fitting portions,
When the connection frame is connected to the upper side of the four support pipes, the fitting parts having a long projecting length are fitted to the two support pipes, and then the two fitted parts are fitted. A support structure having a structure in which the fitting portion having a short projecting length is fitted and assembled to the other two support pipes while being guided by the two support pipes. 2. The support structure according to claim 1 , wherein each of the four fitting portions projecting to one end side and the four fitting portions projecting to the other end side of each of the four connecting bars in each of the connection frames. The supporting structure is characterized in that the protruding length of the two fitting portions is different from the protruding length of the other two fitting portions. The support structure according to claim 1 or 2 , wherein the two fitting parts having a long protruding length and the two fitting parts having a short protruding length are mutually positioned at diagonal positions of the connecting frame. A support structure that is provided. Four connecting rods arranged at the apex position of the quadrilateral, respectively, facing up and down, frame rods connecting these connecting rods to each other, and protruding from both end faces of each connecting rod Of the lower connection frame having a smaller-diameter fitting portion than each of the connection bar members, the support pipes are fitted to the four fitting portions provided to protrude upward,
Four connecting rods arranged at the apex position of the quadrilateral, respectively, facing up and down, frame rods connecting these connecting rods to each other, and protruding from both end faces of each connecting rod An upper connecting frame having a fitting portion having a smaller diameter than each of the connecting rod members is provided with two fitting portions having a long protruding length among the four fitting portions provided to protrude downward. Fitted to the column pipe of the book,
While guiding the fitting portion in a state where the two supporting pipes are fitted to the supporting pipe, the upper connecting frame protrudes downward from the four fitting portions provided to protrude. Fit the two short fitting parts to the other two support pipes,
A method of assembling a support structure, wherein the lower connection frame and the upper connection frame are connected to each other by braces.

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