KR101852578B1 - Segment type arch structure and method for constructing this same - Google Patents

Abstract

The present invention relates to a segment type arch structure and a method for constructing the same. The method for constructing the segment type arch structure comprises: a first step of constructing a foundation on the ground surface; a second step of symmetrically arranging and interlocking first and second segments, each of which has an arch shape; and a third step of installing an iron bar assembly body between the first and second segments interlocked in the second step, and placing concrete in the iron bar assembly body. According to the present invention, the two segments are mechanically connected to construct a structurally safe segment arch structure. By enhancing the interlocking, it is possible to shorten the using time of crane equipment and the operation time of workers, thereby having an effect of reducing the risk of accidents.

Description

TECHNICAL FIELD [0001] The present invention relates to a segmented arch structure and a method of constructing the segmented arch structure,

[0001] The present invention relates to an arch structure, more particularly, to an arch structure in which two segments are mechanically connected to construct a structurally safe segmented arch structure, and through the increase of interlocking, The present invention relates to a segmented arch structure and a method of constructing the segmented arch structure, which shorten exposure time to a safety accident and shorten the altitude to secure economical efficiency.

It is a common practice to construct an open type (road type, railway tunnel, ecological tunnel, etc.) by forming a concrete form on the ground and casting a concrete in the form.

However, in such a construction method, installation of a supporting post or the like is required in order to install the formwork, and the construction period of the concrete such as the curing time of the on-site concrete is prolonged.

In order to solve this problem, a method is used in which arched precast segments manufactured in advance at a factory are sequentially installed on the site to construct a tunnel.

Patent Document 10-1015611 discloses a structure in which left and right split arch members made of precast members are tightly coupled at the ceiling to form an arch structure and a plurality of the arch structures are continuously arranged in the longitudinal direction Having; Wherein the ceiling portion end of the segment arch member is formed on both longitudinally opposite sides of the ceiling portion by cutting off the concave surface from the end surface and the longitudinal side surface of the ceiling portion, A protruding portion is present, and a bottom plate portion exists in the lower portion of the cutout portion by the length of the protruding portion; In a state in which the segmented arch members are arranged continuously in the longitudinal direction, between the longitudinal forward and rearward segmental arch members,

And the fastening rods are fixedly fixed to the protruding portions of the longitudinally adjacent segment arch members, thereby binding the front and rear segment arch members; When the ceiling end portions of the left and right segment arch members are disposed so as to be in contact with each other, the projections of the left and right segment arch members come into contact with each other and the bottom plate portions of the left and right segment arch members also come into contact with each other, The left and right segmental arch members are integrally connected to the steel structure at the ceiling portion and the projected portions are in contact with each other until the filler material is filled, It is difficult to self-assemble. Therefore, there is a disadvantage that the segmental arch member must be lifted by using a crane during filling of the filler material or until completion of curing. This disadvantage leads to a problem that the use time of the crane is very long, which increases the construction cost. In addition, the worker must arrange and reinforce a plurality of reinforcing bars directly, which requires a long length of time for complaints.

Patent No. 10-1015611

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a structure in which the segmented segments are mechanically interlocked to securely hold a concrete structure even before the concrete is poured, The structure of the crane can reduce the time of using expensive crane equipments. In addition, it reduces the time of safety accidents by shortening the length of time for complaints and reduces the number of personnel. It is intended to provide a construction method.

The segmented arch structure according to the present invention comprises: a base portion to be installed on a ground; A first and a second segment, the bottom portions of which are fixed to the base portion and the connecting portions of the opposite ends are connected to each other to form an arcuate shape and continue along the longitudinal direction; Interlocking means for binding opposing ends of the first and second segments; A reinforcing bar assembly disposed over the segments; The first and second segments are arranged along the longitudinal direction of the first and second segments to fix the first and second segments adjacent to each other along the longitudinal direction. The first and second segments are fixed to the steel bar assembly, Wherein the first and second segments include first and second segment bodies each having an arcuate shape and first and second segment main bodies each having a first end and a second end, A first and a second bottom side connecting portions extending in a thickness thinner than the main body of the segment and forming a pouring space therebetween, first and second connecting walls protruding upward from the bottom of the first and second bottom connecting portions, A first and a second fixed reinforcing bars protruding from the wall surfaces of the first and second bottom side connecting portions, at least one of the first and second fixed reinforcing bars being longitudinally penetrated through the first and second connecting walls, The method of claim 1 or 2, And the medium is the first and the second fixed reinforced with steel reinforcing assembly, the first and second segments, and concrete is poured in the casting space are combined as one body.

A method of constructing a segmented arch structure according to the present invention includes: a first step of constructing a foundation on a ground; A second step of horizontally symmetrically mounting and interlocking the first and second segments each having an arc shape; And a third step of installing a reinforcing bar assembly between the interlocked first and second segments through the second step, and then placing the reinforcing bar assembly between the first and second segments interlocked through the second step. In the second step, the first segment formed in an arc shape is lifted, A step 2-2 of cradling a base part with a bottom part, and a step 2-2 of cradling a base part with a bottom part connected by citing a second segment made of an arc shape; And a third step of interlocking the first segment and the second segment installed through the first and second segments, wherein the third step includes installing a reinforcing bar assembly in the pouring space between the first and second segments neighboring in the vertical and horizontal directions, The first and second fixed reinforcing bars installed in the first and second segments and the fixed and first and second synthetic roots are inserted into the first and second joint walls of the first and second segments neighboring along the longitudinal direction, And is fixed to the assembly.

According to the segmented arch structure and the method of constructing the same according to the present invention, even if the first and second segments are interlocked mechanically through the interlocking means to install the concrete (mortar, etc.) It is possible to greatly reduce the operating time of the crane. Therefore, it is possible to greatly reduce the cost of renting the crane, and the pre-reinforced assembly on the ground is manufactured as a single operation, It is possible to reduce the work time for high-altitude work and to secure the economical efficiency by shortening the time and to reduce the work time exposed to the accident caused by the high-altitude work. In addition to securing the work stability, The first and second segments are combined with the reinforced concrete assembly and the concrete to construct a highly rigid arch structure. A.

1 is a perspective view of a segmented arch structure according to the present invention;
FIG. 2 is a perspective view of the first and second segments in a separated state applied to the segmented arch structure according to the present invention. FIG.
3 is a front view showing interlocking means applied to a segmented arch structure according to the present invention.
4 is a plan view showing the coupling of the first and second segments applied to the segmented arch structure according to the present invention.
5 is a front view showing the installation state of the reinforcing bar assembly and the first and second synthetic roots applied to the segmented arch structure according to the present invention.
6 is another example of the first and second segments applied to the segmented arch structure according to the present invention.
7 is a view showing a construction process of a segmented arch structure according to the present invention.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents such as workability, worker safety, economical efficiency, and structural integrity throughout the specification.

As shown in FIGS. 1 to 4, the segmented arch structure according to the present invention is supported on the first and second bases 10 and 20, the first and second bases 10 and 20, , And constitute an arch structure by first and second segments (30, 40) continuous along the longitudinal direction.

First, the two segments of the first and second segments 30 and 40 are illustrated and described. However, the present invention is not limited thereto and three or more segments may be used.

The base portions 10 and 20 are preferably concrete bodies having a structure having an opening space for the first and second segments 30 and 40 to be open toward the upper portion. The pre-cast concrete block, field casting, pre- Everything is possible.

In addition, the bases 10 and 20 are not limited to being separated from each other as shown in the drawing, but can be variously implemented according to the structure to which the present invention is applied. It can also be used as a tied box structure.

Bonding of the base portions 10, 20 and the first and second segments 30, 40 is the same as that of a conventional method, and a detailed description thereof will be omitted.

The first and second segments 30 and 40 are precast reinforced concrete bodies having first and second segment bodies 31 and 41 each having an arcuate cross section to form an arch structure in a state of being mutually stitched, The first and second bottom side connection portions 32 and 42 are formed on the first and second bottom side connection portions 32 and 42 and the first and second bottom side connection portions 32 and 42 for joining the main body 31 and 41, First and second fixing walls 34 and 44 protruding from the wall around the first and second connecting walls 33 and 43, And one or more first and second synthetic muscle receiving parts (35, 45) formed longitudinally through the first and second joint walls (33, 43).

For example, the first and second segment bodies 31 and 41 may have a rectangular cross-section and may have a wide cross-sectional area while maintaining the rigidity.

The first and second bottom connecting portions 32 and 42 extend laterally from the upper ends of the first and second segment bodies 31 and 41 to a lower height than the first and second segment bodies 31 and 41 And extends in the same line as the bottom of the first and second segment bodies 31 and 41 to form a concave space with the first and second joint walls 33 and 43 thereabove.

The first and second bottom side connection portions 32 and 42 can be formed in a shape of a right angle (FIG. 5) or a slant shape (FIG. 6). In the case of a right angle, it is easy to manufacture, and in the case of a slant, the second bottom side connecting portion 42 is naturally overlapped on the first bottom side connecting portion 32 on the lower side so that alignment is good and gap is not generated in the connecting portion.

In addition, the first and second bottom-side connection portions 32 and 42 may be provided with grooves formed on opposite sides of the protrusions, and interlocked with each other.

The first and second joint walls 33 and 43 are integral wall bodies connected to the upper ends of the first and second segment bodies 31 and 41 and the bottom portions of the first and second bottom joint portions 32 and 42, And is disposed at the center so that a space is formed on both sides thereof.

The first and second fixed reinforcing bars 34 and 44 are cast iron rods that are connected to the reinforcing bar assembly 50 and are fixed to the reinforcing bar assembly 50 when the concrete of the first and second segments 30 and 40 is pre- The first and second segment bodies 31 and 41 must be protruded to the outside of the first and second segment bodies 31 and 41. For example, the first and second segment bodies 31 and 41 are bound to the reinforcing steel assembly 50 at two places,

The surfaces of the first and second segments 30 and 40 protruding from the first and second fixed reinforcing bars 34 and 44 are formed to be inclined in a direction toward the bottom for the natural installation of the reinforcing bar assembly 50.

The first and second synthetic proximity receiving portions 35 and 45 are, for example, in the form of holes penetrating the first and second joint walls 33 and 43 along the longitudinal direction, 60 and 70 are installed over the first and second joint walls 33 and 43 of both the reinforcing bar assembly 50 and the reinforcing bar assembly 50 so that the first and second segments 30 and 40 adjacent to each other along the longitudinal direction Synthesized in one piece.

The first and second synthetic proximity receiving portions 35 and 45 have diameters that allow the mortar (concrete) to be poured therein in the state where the first and second synthetic roots 60 and 70 are inserted, 60, and 70) and mortar.

The first and second synthetic and myofiber storage portions 35 and 45 may be formed as grooves opened toward the upper portion.

Mechanical interlocking means is applied as follows so that the first and second segment bodies 31 and 41 remain bonded even before the mortar is poured.

The interlocking means is formed at an end portion of the first and second joint walls 33 and 43 of the first and second segment bodies 31 and 41 so that the upper portion of the first and second segment bodies 31 and 41 The first and second grooves 36 and 46 are formed at different positions in the first and second grooves 36 and 46 and are arranged in a line along the vertical direction. The interlocking reinforcing bar 38 coupled to the first and second ring bolts 37 and 47, the first and second ring bolts 37 and 47, and the first and second grooves 36 and 46, (48).

The first and second grooves (36, 46) are formed in the form of a block-out on the facing surfaces of the first and second segment bodies (31, 41) and open in the facing direction and the upper part, Side connection portions 32 and 42, respectively. Therefore, when the first and second segments 30 and 40 are coupled to each other, the first and second grooves 36 and 46 form a tapped groove that opens upward.

The first and second ring bolts 37 and 47 are coupled to the first and second segments 30 and 40 so as to be mutually tightened by the interlocking reinforcing bar 38, The first and second insert arm sockets 37a and 38a of the nut type are preliminarily installed and fixed in advance when the concrete of the first and second segments 30 and 40 is manufactured and the first and second ring bolts 37 and 37 are pre- 47 are screwed together after the first and second segments 30, 40 are manufactured.

The first and second ring bolts 37 and 47 are disposed at different positions at the time of coupling the first and second segments 30 and 40 so that they do not interfere with each other.

The first and second ring bolts 37 and 47 can be changed in position by screw fastening and the ring portion is formed to have an inner diameter larger than the diameter of the interlocking reinforcing bars 38 so that the interlocking reinforcing bars 38 can be tightened. .

The interlocking reinforcing bars 38 are inserted into the ring portions of the first and second ring bolts 37 and 47 and are engaged with the first and second segments 30 and 40 through the first and second ring bolts 37 and 47 In addition to reinforcing bar, various products such as rods and chains can be used.

The mortar 48 is inserted in the groove formed by the first and second grooves 36 and 46 to integrally combine the first and second ring bolts 37 and 47 and the interlocking reinforcing bar 38, (30, 40).

According to the present invention, a groove-shaped space is formed on both sides of the first and second joint walls 33 and 43 of the first and second segments 30 and 40, , And the two segments 30 and 40 are integrally synthesized to increase the bonding strength. In order to further increase the bonding strength, a reinforcing bar is used. In the present invention, preferably, a reinforcing bar assembly is used, and in order to enable quick binding of the reinforcing bar assembly 50 and the first and second segments 30 and 40, And it is effective to reduce the complaint work by being constituted together.

As shown in FIG. 5, the reinforcing bar assembly 50 is sloped in accordance with the inclination of the first and second segments 30 and 40, and is formed, for example, as a three- The first and second segments 30 and 40 are joined to the first and second fixed reinforcing bars 34 and 44 so that the first and second segments 30 and 40 are fixed to the first and second synthetic roots 60 and 70, It is tightened together.

 The reinforcing bar assembly 50 includes spacers 51 so as not to adhere to the bottom surfaces of the first and second bottom connection portions 32 and 42.

A plurality of spacers 51 protrude from the bottom of the reinforcing bar assembly 50 toward the bottom so that the reinforcing bar assembly 50 is separated from the first and second bottom connecting portions 32 and 42 and a reinforcing bar or the like can be used .

The spacer 51 may be configured to adjust the height of the reinforcing bar assembly 50. For example, the spacer 51 may include a nut fixed to the reinforcing bar assembly 50, (32, 42).

When two first and second segments 30 and 40 are respectively mounted and interlocked, a concave space is formed between a total of four segments, and a reinforcing assembly 50 is installed in the space, Are fixed together with the fixed reinforcing bars (34, 44) and the fixed and first and second synthetic roots (6, 70).

The first and second synthetic roots 60 and 70 can be made of reinforcing bars, rods, chains, and the like. The first and second synthetic roots 60 and 70 are longitudinally arranged in the first and second segments 30 and 40, 45 of the first and second segments 30, 40 adjacent to each other in the longitudinal direction. At this time, the first and second fixed reinforcing bars 34, , 44).

As shown in FIG. 6, the method of constructing the segmented arch structure according to the present invention is as follows.

1. Construction of foundation.

Base portions 10 and 20 are provided on both sides of the arch structure, respectively. The bases 10 and 20 are both field ready and precast blocks and combinations thereof. In addition, when the box structure is constructed, the floor is installed by placing the bases between the bases 10 and 20.

2. Install the segment assembly.

end. Install the first segment.

The first segment 30 is lifted and the bottom portion is inserted into the base portion 10 to stand up.

I. Install the second segment.

The second segment 40 is lifted and the bottom portion is inserted into the base portion 20.

All. 1st and 2nd segment interlocking.

The first and second bottom side connecting portions 32 and 42 of the first and second segments 30 and 40 and the end portions of the first and second connecting walls 33 and 43 are aligned with each other in the process of mounting the second segment 40 At this time, the first ring bolt 37 of the first segment 30 and the second ring bolt 47 of the second segment 40 are aligned in the vertical direction along the vertical direction.

The interlocking reinforcing bars 38 are fitted to the ring portions of the first and second ring bolts 37 and 47 and the mortar 48 is filled in the first and second grooves 36 and 46.

Thus, even though the first and second segments 30 and 40 are interlocked and the mortar is not installed in the space of the first and second segments 30 and 40, the first and second segments 30 and 40, 40 remain stationary.

3. Putting mortar.

Between the segment assemblies, there is provided a mounting space as described above, and the reinforcing assembly 50 is lifted from the ground and inserted into the mounting space.

Next, the first and second fixed reinforcing bars 34 and 44 of the reinforcing bar assembly 50 and the first and second segments 30 and 40 are fixed.

In addition, the first and second synthetic roots (60, 70) are inserted into the first and second synthetic root receiving portions (35, 45) and fixed to the reinforcing bar assembly (50). Subsequently, mortar is placed and cured.

Through the repetition of such a method, four vertically adjacent segments are synthesized integrally, and as a result, the segments are chained together so that all the segment assemblies are integrated.

In particular, all of the arch structures are integrally formed through the first and second synthetic root receiving portions 35, 45 and the first and second synthetic roots 60, 70.

The mortar process can also be accomplished in a single process at the end after mounting and interlocking all the first and second segments 30,40.

4. Deadline.

Leaks may occur between the first and second segments 30 and 40 arranged along the longitudinal direction. In order to prevent this leakage, the longitudinal direction of the first and second segments 3 and 40 may be waterproofed. For the waterproof treatment, all known methods such as application of a waterproofing liquid and installation of a waterproof sheet can be used.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

10, 20: base portion, 30, 40: first and second segments
31, 41: first and second segment bodies, 32, 42: first and second bottom-
33, 43: first and second joint walls, 34, 44:
35, 45: first and second synthetic muscle receiving parts, 36, 46:
37, 47: first and second ring bolts, 38: interlocking reinforcing bars
48: mortar, 50: reinforcing assembly
51: spacer, 60,70: 1st and 2nd synthetic muscle

Claims (6)

A base (10,20) applied to the ground;
First and second segments (30, 40) which are connected to each other at their bottom portions and which are connected to each other at their opposite ends to form an arcuate shape and continue along the longitudinal direction;
Interlocking means for binding opposing ends of the first and second segments;
A reinforcing bar assembly (50) installed over the segments;
The first and second segments are arranged along the longitudinal direction of the first and second segments to fix the first and second segments adjacent to each other along the longitudinal direction. The first and second segments are fixed to the steel bar assembly, And first and second synthetic roots (60, 70) for integrally synthesizing the segments,
The first and second segments are formed in a shape of a circular arc having first and second segment main bodies 31 and 41, First and second bottom connecting portions 32, 42 forming a space, first and second connecting walls 33, 43 protruding upward from the bottom of the first and second bottom connecting portions, First and second fixed reinforcing bars 34 and 44 protruding from the wall surfaces of the first and second bottom side connecting portions, The first and second fixed reinforcing bars and the reinforcing bar assembly, the first and second segments, and the pouring, respectively, via the first and second synthetic roots, Concrete placed in space is synthesized in one piece,
The first and second fixed reinforcing bars, the first and second synthetic muscle receiving parts, and the first and second synthetic roots are formed at two different heights,
The first and second synthetic muscle rods are made of a material such that the first and second synthetic muscle rods are inserted into the interior of the first and second synthetic roots so that the first and second synthetic roots (60, 70) Synthesized in one piece,
The reinforcing bar assembly 50 has a hexahedral shape in which a plurality of reinforcing bars are vertically and horizontally arranged in upper and lower two layers, and both the right and left reinforcing bars are bound to the first and second fixing bars 34 and 44, And a spacer (51) tightened together with the first and second synthetic roots (60, 70) and not attached to the bottom surfaces of the first and second bottom side connection portions (32, 42)
The spacer (51) has a plurality of openings projecting toward the bottom at the bottom of the reinforcing bar assembly (50). The spacer is screwed to the nut, and the first and second bottom connection portions (32, And the height of the reinforcing bar assembly is adjusted by adjusting the height of the reinforcing bar assembly. The interlocking device according to claim 1, wherein the interlocking means is formed so as to be open toward a direction facing the end portions of the first and second joint walls of the first and second segments and upwardly, One or more first and second ring bolts arranged at different positions in the first and second grooves and arranged in a line along the vertical direction, An interlocking reinforcing bar coupled to the first and second grooves, and a filler poured into the inserted grooves by the first and second grooves. delete delete delete A method of constructing a segmented arch structure according to claim 1,
A first step of constructing a foundation on the ground;
A second step of horizontally symmetrically mounting and interlocking the first and second segments each having an arc shape;
And a third step of installing a reinforcing bar assembly between the interlocked first and second segments through the second step,
In the second step, a first segment formed in an arcuate shape is lifted and a bottom portion is connected to the base portion. In Step 2-1, a second segment formed in an arcuate shape is cited to connect the bottom portion to the base portion, A step 2-2 of interlocking the first and second segments installed through steps 2-1 and 2-2,
In the third step, a reinforcing bar assembly is installed in a space between the first and second segments adjacent to each other in the vertical and horizontal directions, and the height of the reinforcing bar assembly is adjusted through a spacer. Fixing the first and second synthetic roots to the first and second joint walls of the first and second segments adjacent to each other along the longitudinal direction while fixing the first and second synthetic roots to the reinforcing bar assembly and then pouring the concrete through the concrete, A method of constructing a segmented arch structure, the method comprising: integrating a first and second synthetic roots, a reinforcing bar assembly, and first and second segments.

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