KR101847104B1 - Masonry arch structure with ductile behavior and construction method thereof - Google Patents

Abstract

The present invention relates to a masonry arch structure which induces ductile behavior of an arch structure by free rotational deformation on an interface between neighboring unit blocks by hinging unit blocks constituting an arch barrel of the arch structure to each other, thereby improving a load carrying capability of the arch structure, and to a method of constructing the same. The masonry arch structure exhibiting ductile behavior is composed of an arch barrel formed by continuously combining a plurality of unit blocks, wherein each of the unit blocks has an upper portion wider than a lower portion such that both side ends are inclined. A first hinge protrusion is formed at an upper portion of one side end of the unit block and a first hinge groove corresponding to the first hinge protrusion is formed at an upper portion of the other side end. A second hinge protrusion is formed on any one side among both lower ends and a second hinge groove corresponding to the second hinge protrusion is formed on the other side. The arch barrel is formed by continuously combining the unit blocks so that the first hinge protrusion and the second hinge protrusion of one unit block are fitted into the first hinge groove and the second hinge groove of another unit block adjacent to the unit block. Sides of an upper portion of the first hinge protrusion and the first hinge groove and a lower portion of the second hinge protrusion and the second hinge groove are formed to be inclined inwards at a predetermined angle, such that V-shaped spaces are formed between the adjacent unit blocks. Thus, bidirectional rotation between the adjacent unit blocks is enabled, so deformation of the arch barrel is allowed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ductile arch structure,

The present invention relates to a buckling buckling structure capable of improving the load supporting ability by inducing the buckling behavior of the arch structure by free rotational deformation at the interface of adjacent unit blocks by hinging the unit blocks constituting the arch barrel of the arch structure to each other, And to a method of constructing the same.

The arch is a structure that supports the upper load by compressive force, and blocks of the same shape such as stone, precast concrete and the like which are resistant to compression force are continuously assembled and formed into arc shape (Fig. 1).

In the arch structure (1), when the upper load is applied, both ends of the arch structure (1) installed in the ground are supported by the earth and earth (3) Structure.

However, in the conventional articulated arch structure 1, adjoining unit blocks 11 are supported only by the acupressure at the joint surface.

Therefore, when the stacking load reaches the design load as shown in FIG. 2, the lower end of the unit block 11 is moved to the lower end of the unit block 11, The stress is concentrated and broken. When the axial line through which the compressive force is transmitted by the load changes reaches the end of the member, the arch-shaped structure 1 collapses barely as the unit block 11 starts to fracture as the acupressure area between the unit blocks 11 sharply decreases .

In addition, even if deflection occurs in the unit block 11 due to its own weight, corner stress concentration occurs in the lower part of the unit block 11 and damage to the unit block 11 is prevented. There is an accident.

At this time, since the deformation of the arch structure (1) is small until the collapse occurs, the surrounding soil (3) is still in the stoppage state. Therefore, it is not expected to increase additional bearing capacity or load redistribution by the earth pressure of the surrounding soil (3).

On the other hand, the effect of the size of the unit block on the overall construction process and construction period is significant in the arch structure.

Since the weight of the unit block increases as the size of the unit block increases, the load and the burden of transportation and loading may increase, which may lead to various problems such as poor workability, increase in construction cost and air, and difficulty in widely utilizing the space.

KR 10-1099885 B1

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a buckling-arch type arch structure and its construction method capable of improving the load supporting ability by inducing the ductility behavior of the arch structure.

An object of the present invention is to provide a buckling-arch type arch structure and its construction method which can reduce the weight by reducing the size of the unit block constituting the arch structure, reduce the construction cost and shorten the construction time.

SUMMARY OF THE INVENTION The present invention is directed to a ductile arch structure capable of enhancing stability during construction and in common use of an arch structure and a method of constructing the arch structure.

According to a preferred embodiment of the present invention, there is provided an arch barrel in which a plurality of unit blocks inclined at both sides are continuously joined so that an upper portion of the unit bar is wider than a lower portion. And a second hinge protrusion is formed on one side of both lower ends of the unit block and a second hinge protrusion is formed on the other side of the second hinge protrusion, And the arch barrel is formed so that the first hinge protrusion and the second hinge protrusion of the unit block are accommodated in the first hinge groove and the second hinge groove of the adjacent unit block, And the upper portion of the first hinge recess portion and the lower portion of the second hinge projection portion and the second hinge recess portion of the unit block are inclined inward at a predetermined angle By a two-way rotation between the adjacent unit blocks by constituting so as to form a V-shaped space between the adjacent unit blocks to be provided to ductile behavior masonry arch type structure, characterized in that the acceptable deformation of the arch barrel.

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According to another preferred embodiment of the present invention, a first through hole is formed in the longitudinal direction of the arch barrel at the upper portion of the central axis on the cross section of the unit block, and a plurality of unit blocks are mutually interlinked by a tensile material inserted into the first through hole Wherein the coupling structure is connected to the coupling structure.

According to another preferred embodiment of the present invention, in the arch structure, a plurality of arch barrels are tightly coupled to each other in the transverse direction, and a second through hole is formed in the unit block in the width direction of the arch structure, And are connected to each other by a connecting wire rod inserted into the through hole.

According to another preferred embodiment of the present invention, the unit block has the first hinge protrusion formed on one side of either end, the upper panel formed with the first hinge recess on the other side, and the second hinge protrusion formed on one side thereof A lower panel having the second hinge groove formed at the other end thereof, and a connecting member connecting the upper panel and the lower panel, wherein a hollow portion is formed between the upper panel and the lower panel. Structure.

According to another preferred embodiment of the present invention, the unit block is constituted by assembling separately manufactured upper panel, lower panel and connecting member, respectively.

According to another preferred embodiment of the present invention, the hollow portion is filled with concrete.

According to another preferred embodiment of the present invention, in the arch structure, a plurality of arch barrels are closely coupled to each other in the transverse direction, and the connecting wire is laid across the width direction of the arch barrel to fill the concrete Thereby providing a ductile-behavior-type arch structure.

According to another preferred embodiment of the present invention, the end pads are coupled along the side end shapes to all or a part of the ends of one end or both ends of the unit block.

According to another preferred embodiment of the present invention, there is provided a buckling arch structure for constructing the buckling arch structure, comprising: (a) a support block provided at both ends of a position where an arch structure is to be installed, To form an arch barrel; (b) mounting both ends of the arch barrel to the upper portion of the support bar by concentrating the center of the arch barrel; And (c) backing up the gravel to the top of the arch barrel; The method of constructing a buckling-arch type arch structure according to the present invention comprises the steps of:

According to another preferred embodiment of the present invention, a plurality of arch barrels are provided in the step (a), and a plurality of arch barrels are installed in a plurality of rows by tightly fitting a plurality of arch barrels in the lateral direction in the step (b) A second through hole is formed in the width direction of the arch structure, and in the step (b), after the plurality of rows of arch barrels are installed, the connecting wire rods are inserted into the second through holes to interconnect the plurality of arch barrels in the width direction The present invention provides a method of constructing a ductile arch structure.

According to another preferred embodiment of the present invention, the unit block has the first hinge protrusion formed on one side of either end, the upper panel formed with the first hinge recess on the other side, and the second hinge protrusion formed on one side thereof And a connecting member for connecting the upper panel and the lower panel. In the step (b), concrete is inserted between the upper panel and the lower panel after the arch barrel is mounted. Wherein the first and second ducts are connected to each other.

The present invention has the following effects.

First, since the unit blocks constituting the arch barrel of the arch structure are mutually hinge-coupled, the ductility behavior of the arch structure can be induced by free rotational deformation at the interface of the neighboring unit blocks. Therefore, it is possible to reduce the size of the unit block, thereby reducing the weight of the member, improving the workability, reducing the construction cost and shortening the air.

Second, the unit block can be rotationally displaced in a state in which the hinge projecting portion and the hinge groove portion are engaged with each other, smoothly transmitting the axial force, and performing the role of a shear key.

Third, unlike the conventional articulated arch structure, large deformation can be allowed. Therefore, the effect of the load redistribution can be obtained by making use of the restraining effect by the passive earth pressure on the backside.

Fourth, when the hinge coupling part is positioned on the unit block so that bi-directional rotation is possible, a certain acupressure area can be secured and the shearing force can be supported regardless of the rotational deformation in any direction. In addition, since the tensile material is stretched due to the self weight of the unit block, even if the upper portion of the adjacent unit block is opened, the axial force can be supported by the lower hinge engagement portion.

Fifth, by inserting a tensile material into the first through-hole formed in the unit block along the longitudinal direction of the arch barrel and connecting the arch barrels in the longitudinal direction, arch shape can be maintained well when the arch barrel is held.

Sixth, a plurality of arch barrels can be connected in the width direction of the arch structure by inserting the connecting wire into the second through-hole formed in the unit block along the width direction of the arch barrel. Therefore, it is possible to reduce the burden on the arch barrel, and the arch barrel can be freely added.

1 shows a conventional arch structure.
2 is a view showing the breakdown pattern of a unit block in a conventional arch structure;
3 is a view showing an embodiment of a soft rocking arch structure according to the present invention.
4 is a perspective view showing the unit block of Fig. 3; Fig.
Fig. 5 is a diagram showing a state of coupling between unit blocks in Fig. 3; Fig.
6 illustrates another embodiment of the present invention flexible ductile arch structure.
7 is a perspective view showing the unit block of Fig. 6; Fig.
8 is a view showing a state of coupling between unit blocks in Fig.
Fig. 9 is a view showing a deformed shape of a soft-acting articulated arch structure of the present invention at the time of occurrence of lateral displacement; Fig.
10 is a view showing a modification detail to the portion 'A' of FIG. 9;
11 is a view showing a modification of the portion 'B' in FIG. 9;
12 is a perspective view showing an embodiment of a unit block;
13 is a perspective view showing a coupling relationship between a unit block and a tensile member;
FIG. 14 is a view showing a part of a construction method of a ductile rocking arch structure according to the present invention. FIG.
15 is a perspective view showing the lateral coupling relationship of the arch barrels.
16 is a perspective view showing embodiments of a hollow unit block;
17 is a perspective view showing another embodiment of the hollow unit block;
18 is an exploded perspective view of a hollow unit block according to an embodiment.
19 is an exploded perspective view of a hollow unit block according to another embodiment.
20 is a longitudinal sectional view of an arch barrel constructed using a hollow unit block;
21 is a perspective view showing a unit block to which end pads are coupled;
22 is a diagram showing a step-by-step process for a method of constructing a ductile rock arch structure according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

FIG. 3 is a view showing an embodiment of a soft rocking arch structure according to the present invention, FIG. 4 is a perspective view showing a unit block of FIG. 3, and FIG. 5 is a view showing a state of coupling between unit blocks of FIG. 3 .

As shown in FIGS. 3 to 5, the flexible arch structure of the present invention includes an arch barrel (or an arch barrel) in which a plurality of unit blocks 11, 11 ' The first hinge protrusions 111 and 111 'protrude from one end of the one end of the unit block 11 and the first hinge protrusions 111 and 111' And a second hinge protrusion 113 is formed on one side of both lower ends of the unit blocks 11 and 11 'and a second hinge protrusion 113 is formed on the other side of the unit blocks 11 and 11' A second hinge recess 114 having a shape corresponding to that of the second hinge protrusion 113 is formed and the arch barrel 1a is fixed to the first hinge protrusion 111 and the second hinge protrusion 113 of the unit block 11 Unit blocks 11 and 11 'are continuously coupled so that the first unit block 11' is accommodated in the first hinge groove portion 112 'and the second hinge groove portion 114' of the adjacent unit block 11 ' The upper portions of the first hinge projections 111 and the first hinge grooves 112 'of the unit blocks 11 and 11' and the lower portions of the second hinge projections 113 and the second hinge grooves 114 ' And a V-shaped space is formed between the unit blocks 11 and 11 'so as to be inclined inwardly from the adjacent unit blocks 11 and 11', so that bidirectional rotation between adjacent unit blocks 11 and 11 ' ) Is allowed to be deformed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention provides a buckling arch structure comprising an arch barrel (1a) in which a plurality of unit blocks (11, 11 ') are continuously connected.

The arch structure 1 can be formed by connecting a plurality of arch barrels 1a and 1b in the width direction of the arch structure 1 as shown in FIG.

The present invention is applicable to an arch structure for an underground structure in which gravel (3) is backed up on a bridge, a tunnel, a culvert, etc., and a plurality of unit blocks (11, 11 ') are brought into close contact with each other to form an arch barrel do.

The unit blocks 11 and 11 'are formed such that the upper ends thereof are wider than the lower ends thereof and both side ends thereof are inclined.

The unit blocks 11 and 11 'are preferably made of precast concrete in consideration of economic efficiency, compressive strength, and the like, but any material may be used as long as the material has excellent compressive strength.

The unit blocks 11 and 11 'have first hinge protrusions 111 and 111' protruding from one end portion thereof and having a shape corresponding to the first hinge protrusions 111 and 111 ' 1 hinge grooves 112 and 112 'are formed.

The unit blocks 11 and 11 'are continuously engaged and engaged so that the first hinge projections 111 of the unit block 11 are accommodated in the first hinge grooves 112' of the adjacent unit blocks 11 '.

It is preferable that the first hinge projections 111 and 111 'and the first hinge grooves 112 and 112' are formed in an arc shape having the same curvature so as to serve as a hinge.

The first hinge projections 111 and 111 'and the first hinge grooves 112 and 112' of the unit blocks 11 and 11 'are engaged with each other so that i) the rotational displacement of the unit blocks 11 and 11' Ⅱ) transmit axial force, and ⅲ) serve as shear keys.

Hereinafter, a coupling portion between the hinge protrusion and the hinge groove will be referred to as a " hinge coupling portion ".

The arch barrel 1a behaves like a rigid structure which keeps the shape of the arch barrel 1a as it is in a construction like the general structure arch structure 1 under construction or under normal load.

Since the unit blocks 11 and 11 'constituting the arch barrel 1a of the arch structure 1 are hinged to each other, rotational deformation is allowed at the interface of the neighboring unit blocks 11 and 11' Deformation occurs in the arch barrel 1a when the design load is reached and excessive load is applied.

That is, when a large load is applied, a large deformation occurs in the arch structure 1 and a predetermined ground area is maintained in the hinge portion even if relative rotation occurs between the unit blocks 11 and 11 '. Therefore, during the deformation of the structure, the member is not damaged and the passive earth pressure of the back soil is developed, so that the axial line is maintained inside the structure, so that the axial force flowing in the arch structure 1 can be transmitted well.

In other words, the present invention is a hybrid arch structure (1) that behaves as a rigid structure as in the conventional articulated arch structure (1) during a construction and an ordinary load and behaves as a flexible structure under a large load. In other words, it is the most important feature that the ductile arch structure (1) is capable of ductility behavior.

In particular, the present invention may allow large deformation, unlike the conventional articulated arch structure (1). Therefore, it is possible to utilize the restraining effect by the passive earth pressure on the back surface as much as the soft structure such as the corrugated steel plate.

In other words, due to the large deformation of the arch structure 1, the earth pressure of the rear soil gravel 3 is switched from the stationary earth pressure to the manual earth pressure, and the load distribution is restrained in such a manner that the arch structure 1 is restrained by the increased earth pressure It happens.

As described above, in the present invention, it is possible to improve the load supporting ability by inducing the ductility behavior of the arch structure 1. [ Accordingly, by reducing the height of the unit blocks 11 and 11 ', it is possible to improve the workability by reducing the weight, shorten the air, and reduce the construction cost.

In addition, the stability of the arch structure 1 during construction and in common use can be enhanced.

FIG. 6 is a view showing another embodiment of the present invention's flexible dynamic arch type arch structure, FIG. 7 is a perspective view showing the unit block of FIG. 6, and FIG. 8 is a view to be.

9 is a view showing a deformation shape of the present invention flexible deformation type arch structure when a lateral displacement occurs, FIG. 10 is a view showing deformation details with respect to the 'A' portion of FIG. 9, Quot; B " portion of Fig.

6 to 8, the first hinge projections 111 and 111 'and the first hinge grooves 112 and 112' are formed on both ends of the unit blocks 11 and 11 ' A second hinge protrusion 113 is formed at one side of both ends of the lower ends of the unit blocks 11 and 11 'and a second hinge recess 114 having a shape corresponding to the second hinge protrusion 113 is formed at the other side .

The arch structure (1) is simultaneously rotated in two directions when the deformation occurs.

That is, when the load acting on the ground surface is shifted to one side than the crown of the arch structure 1, a lateral displacement (sway) occurs in the arch structure 1, and the one receiving the load as shown in Fig. A convex rotation is generated and an opposite convex rotation is generated.

Therefore, in the present invention, the hinge coupling portion can be configured as a top and bottom duplex so as to enable bidirectional rotation.

Accordingly, even if rotational deformation occurs in any direction, it is possible to secure a constant acupressure area and to support the shearing force (see Figs. 10 and 11).

In particular, the opposite side of the load acts on the passive earth pressure due to the deformation of the arch structure 1, thereby supporting the arch structure 1 by the binding force of the passive earth pressure.

In FIG. 9, P _L represents the load carrying capacity, P _p represents the manual earth pressure, the dotted line represents the shape of the arch structure 1 before deformation, and the solid line represents the shape of the arch structure 1 after deformation.

A plurality of unit blocks 11 and 11 'may be poured in the state of the arch barrel 1a integrated by the tensile material 12, as will be described later with reference to FIGS.

In this case, since the tensile material 12 is stretched by the weight of the unit blocks 11 and 11 ', even if the upper portions of the adjacent unit blocks 11 and 11' are opened, Stability is high because it can support axial force.

The positions of the second hinge protrusion 113 and the second hinge groove 114 are not limited by the positions of the first hinge protrusion 111 'and the first hinge grooves 112 and 112'.

Therefore, as shown in FIG. 7A, one side of each of the unit blocks 11 and 11 'may form the hinge projections 111 and 113 and the other side may form the hinge grooves 112 and 114, it is also possible to form the hinge protrusion 111 and the hinge recess 114 on one side of the unit block 11 or 11 'and the hinge recess 112 and the hinge protrusion 113 on the other side .

However, the directions of the hinge protrusions 111 and 113 and the hinge grooves 112 and 114 may be symmetrical with respect to the unit blocks 11 and 11 'positioned in the crown for stable weight.

8 and 9, the first hinge protrusion 111 and the upper portion of the first hinge groove 112 ', the second hinge protrusion 113 and the second hinge recess 112' of the unit block 11, 11 ' The lower part of the groove 114 'may be formed such that the side surface thereof is inclined inward at a predetermined angle so that a V-shaped space is formed between the unit block 11' and the adjacent unit block 11 '.

The first hinge protrusion 111 and the first hinge recess 112 ', the second hinge protrusion 113 and the second hinge recess 114', and the upper hinge coupling portion 112 'during the construction and common use of the arch structure 1, And the side surfaces of the lower hinge engaging portion are in close contact with each other.

However, when rotational deformation occurs in an upward or downward convex shape due to an excessive load, the upper and lower edges of the unit blocks 11 and 11 'may be formed to be inclined so that such rotational deformation can occur freely. .

FIG. 12 is a perspective view showing an embodiment of a unit block, FIG. 13 is a perspective view showing a coupling relation between a unit block and a tensile material, and FIG. 14 is a view showing a part of a method of constructing a soft rocking arch structure according to the present invention .

12 to 14, a first through hole 115 is formed in the longitudinal direction of the arch barrel 1a at an upper portion of the central axis on the cross section of the unit block 11, 11 ' The blocks 11 and 11 'may be connected to each other by a tensile member 12 inserted through the first through hole 115.

The arch barrel 1a tries to open the upper part between neighboring unit blocks 11 and 11 'with respect to the central axis on the cross section of the arch barrel 1a at the time of biasing.

Therefore, by connecting the plurality of unit blocks 11 and 11 'by inserting the tensile material 12 into the first through-hole 115 formed on the central axis of the unit block 11 and 11' , 11 'can be prevented from being opened. Accordingly, it is possible to install and install the unit blocks 11 and 11 'simultaneously at both ends of the arch barrel 1a, and the arch shape of the arch barrel 1a can be maintained during the installation process.

Particularly, the unit blocks 11 and 11 'adjacent to each other when the arch barrel 1a is lifted are rotated about the first hinge projections 111 and 111' and the first hinge grooves 112 and 112 '.

Therefore, the first and second hinge protrusions 111 and 111 'and the first hinge grooves 112', which are rotation shafts, are provided so that the length of the tensile material 12 does not change even when the unit blocks 11 and 11 ' , 112 ') to form a first through hole (115) to provide a tensile material (12).

In order to stably support the unit blocks 11 and 11 ', it is preferable that at least two rows of first through holes 115 and tensile members 12 are provided.

In particular, when the tensile material 12 passes through the hinge coupling portion, prestressing may be introduced into the tensile material 12 so that the hinge coupling portion can transmit the axial force well.

When an arch barrel 1a composed of a plurality of unit blocks 11 and 11 'is formed by inserting a tensile material 12 into the first through holes 115 of the unit blocks 11 and 11' As shown in Fig. 14 (a), the arch barrel 1a mounted on the work surface can be weighted by putting a pair of hooks at the center as shown in Fig. 14 (b).

15 is a perspective view showing the lateral coupling relationship of the arch barrels.

15, the arch structure 1 has a plurality of arch barrels 1a and 1b tightly coupled to each other in the transverse direction, and the unit blocks 11 and 11 ' And the plurality of arch barrels 1a and 1b may be connected to each other by a connecting wire member 13 inserted into the second through hole 116. [

The arch structure (1) can be composed of a plurality of arch barrels (1a, 1b) divided in the width direction.

As described above, if the arch structure 1 is constituted by a plurality of arch barrels 1a and 1b, the burden on the buckling can be reduced.

In addition, the addition of the arch barrels 1a and 1b is free to cope with the arch structures 1 of various widths.

The plurality of arch barrels 1a and 1b can be interconnected by the connecting wire members 13 inserted into the second through holes 116 formed in the unit blocks 11 and 11 'and integrated in the lateral direction.

Unlike the first through hole 115 formed in the unit block 11, 11 'along the longitudinal direction of the arch barrel 1a, the second through hole 116 extends in the width direction of the arch barrel 1a Unit blocks 11 and 11 '.

The first through hole 115 connects the respective arch barrels 1a or 1b in the longitudinal direction by the tensile member 12 and the second through hole 116 connects the adjacent arch barrels 1a or 1b by the connecting wire member 13 The arch barrels 1a and 1b are connected in the width direction to form the arch structure 1.

FIG. 16 is a perspective view showing the embodiments of the hollow unit block, and FIG. 17 is a perspective view showing another embodiment of the hollow unit block.

16 and 17, the unit block 11 includes the first hinge protrusion 111 formed on one side of the opposite end portions thereof and the upper hinge protrusion 111 formed on the other side thereof, A lower panel 11b formed with the second hinge protrusion 113 at one end thereof and the second hinge recess 114 formed at the other end thereof and a lower panel 11b formed with the upper panel 11a and the lower panel 11b, And a connecting member 11c connecting the upper panel 11a and the lower panel 11b to form a hollow portion 14 between the upper panel 11a and the lower panel 11b.

That is, the unit block 11 may include an upper panel 11a, a lower panel 11b, and a connecting member 11c.

Since the axial force is not large during the construction, the axial force can be sufficiently transmitted only by the hinge coupling portion.

Therefore, the remaining portion except for the hinge engaging portion can be configured to minimize the weight of the member by forming the hollow portion 14. [ Accordingly, the construction load can be reduced, and workability is improved.

The connecting member 11c can be made of a variety of materials such as a metal material such as concrete and truss, and EPS.

As an example of the connecting member 11c, a precast concrete is shown in FIG. 16 (a), and trusses and EPS blocks are shown in FIGS. 16 (b) and 16 (c).

The hollow portion 14 may be formed in the width direction or the longitudinal direction of the arch barrel 1a according to the arrangement of the connecting member 11c.

16 (a) to 16 (c), the hollow portion 14 is formed along the longitudinal direction of the arch barrel 1a, and in FIG. 17, the hollow portion 14 is formed along the width direction of the arch barrel 1a .

FIG. 18 is an exploded perspective view of a hollow unit block according to an embodiment, and FIG. 19 is an exploded perspective view of a hollow unit block according to another embodiment.

As shown in FIGS. 18 and 19, the unit block 11 can be constructed by separately assembling the upper panel 11a, the lower panel 11b, and the connecting member 11c.

In general, precast concrete takes a long time to produce in a factory, making it difficult to produce timely and timely.

When the unit block 11 is separately manufactured by the upper panel 11a and the lower panel 11b, the combination of some types of the lower panel 11b and the upper panel 11a and the height of the connecting member 11c A unit block 11 having various curvatures and various heights can be manufactured.

The upper panel 11a, the lower panel 11b, and the connecting member 11c can be manufactured in advance and can be assembled according to the site conditions, so that the timely supply is possible.

The connecting member 11c may be coupled to the upper panel 11a and the lower panel 11b by bolts 117 and the bolts 117 may be formed to be filled in advance when the panel is manufactured.

The connecting member 11c may be made of metal or the like and may be configured to be adjustable in length.

Specifically, FIG. 18 shows the coupling relationship between the respective configurations of the hollow unit block 11 for the embodiment in which the connecting member 11c is precast concrete.

When the connecting member 11c is precast concrete, the upper panel 11a, the connecting member 11c, and the lower panel 11b can be coupled to each other by long bolts passing through these members.

Fig. 19 shows the coupling relationship between the respective configurations of the hollow unit block 11 for the connecting member 11c as a truss.

20 is a longitudinal sectional view of an arch barrel constructed using a hollow unit block.

As shown in FIG. 20, the hollow portion 14 may be filled with concrete 15.

When the hollow portion 14 is filled with the concrete 15, it is possible to sufficiently support the axial force under the normal load condition during the common use.

Even if rotational deformation occurs between adjacent unit blocks 11, cracks are generated in the concrete 15 inside the hollow portion 14 at the boundary portion of the neighboring unit block 11, so that the rotation deformation is not hindered.

A plurality of arch barrels 1a are tightly coupled to each other in the transverse direction of the arch structure 1 so that the connecting wire members 13 are laid across the hollow portion 14 in the width direction of the arch barrel 1a , And the concrete 15 may be filled.

The connecting wire members 13 are integrated so that the adjacent arch barrels 1a in the width direction behave together. Accordingly, the load can be efficiently distributed laterally when the super concentrated load is applied.

The connecting wire 13 is fixed to the concrete 15 filled in the hollow portion 14 to laterally integrate the arch barrels 1a.

When the hollow portion 14 is continuous in the width direction of the arch barrel 1a, the connecting wire member 13 such as a reinforcing bar can be disposed in the hollow portion 14 in the width direction.

If the connecting member 11c is disposed in the longitudinal direction of the arch barrel 1a, a second through hole 116 may be formed in the connecting member 11c to penetrate the connecting wire 13.

21 is a perspective view showing a unit block to which end pads are coupled.

As shown in FIG. 21, the end pads 118 may be coupled along the side end shapes to all or a part of one end or both ends of the unit block 11.

The present invention induces the malleable behavior of the arch structure (1) by free rotational deformation of each unit block (11) at the boundary of the unit blocks (11). Therefore, the frictionless end pads 118 can be coupled to the end of the unit block 11 so that such rotational deformation can occur freely.

The end pads 118 may be provided on the entire end portion or only a part of the end pads 118. In some cases, the end pads 118 may be provided on the hinge projections or hinge grooves where rotation occurs.

The end pads 118 may be provided on only one side of the unit block 11.

When the end pads 118 are provided on the entire ends of both ends of the unit block 11, the end pads 118 may serve as a mold when the unit block 11 is manufactured. That is, the end pad 118 can simultaneously perform the role of the permanent die and the sliding pad.

In addition, the end pads 118 prevent the end of the unit block 11 from being damaged during transportation and filling of the unit block 11.

The end pads 118 may be fabricated using various materials, and may be made of steel, PVC, or the like.

22 is a diagram showing a step-by-step process for a method of constructing a ductile-arch type arch structure according to the present invention.

As shown in FIGS. 22A to 22C, the method for constructing a soft rocking arch structure according to the present invention is for constructing the above-described soft rock arch structure, comprising the steps of: (a) Providing a support base 2 at both ends of a position to be installed and connecting the plurality of unit blocks 11 on the work surface with the tensile material 12 to construct an arch barrel 1a; (b) mounting both ends of the arch barrel (1a) on the upper part of the support base (2) by centering the center of the arch barrel (1a); And (c) backing up the gravel (3) on top of the arch barrel (1a); And a control unit.

In the step (a), the support bar 2 is installed and the arch barrel 1a is manufactured (FIG. 22 (a)).

The arch barrel 1a is formed by connecting a plurality of unit blocks 11 with the tensile material 12. [

The adjacent unit blocks 11 are engaged with each other by the hinge engaging portion and can be rotationally deformed.

In the step (b), both ends of the arch barrel 1a are mounted on the upper part of the support bar 2 (Fig. 22 (b)) by centering the arch barrel 1a.

At this time, the plurality of unit blocks 11 and 11 'are fully assembled by the tensile member 12.

And (c) the gravel-like material 3 is backed on the upper portion of the arch barrel 1a (FIG. 22 (c)).

In the step (a), a plurality of arch barrels 1a are provided, and in the step (b), a plurality of arch barrels 1a are tightly coupled in the lateral direction to form a plurality of rows, The second through hole 116 is formed in the width direction of the arch structure 1 so that the connecting wire member 13 is connected to the second through hole 116 after the plurality of arched barrels 1a are installed in step (b) So that the arch barrels la in a plurality of columns can be interconnected in the width direction.

Therefore, the plurality of arch barrels 1a and 1b can be interconnected by the connecting wire 13 to be integrated in the lateral direction.

In addition, the unit block 11 includes an upper panel 11a having the first hinge protrusion 111 formed on one side and a first hinge recess 112 formed on the other side of the unit block 11, And a connecting member 11c connecting the upper panel 11a and the lower panel 11b to each other. The lower panel 11b is formed with the hinge protrusion 113 and the second hinge groove 114 at the other end thereof. The concrete 15 may be filled between the upper panel 11a and the lower panel 11b after the arch barrel 1a is mounted in the step (b).

Therefore, the unit block 11 includes the upper panel 11a, the lower panel 11b, and the connecting member 11c, so that it is possible to sufficiently transmit the axial force only by the hinge engaging portion during the construction and improve the workability by reducing the weight.

In addition, a hollow portion is formed in a space formed in the remaining portion except for the hinge coupling portion to fill the concrete 15 after the step (b), so that the axial force is sufficiently supported in the normal load state during the common use. . ≪ / RTI >

1: arch structure 1a, 1b: arch barrel
11, 11 ': unit block 11a: upper panel
11b: lower panel 11c: connecting member
111, 111 ': first hinge projections 112, 112': first hinge grooves 112,
113: second hinge protrusion 114, 114 ': second hinge recess
115: first through hole 116: second through hole
117: bolt 118: end pad
12: tensile material 13: connecting wire
14: hollow part 15: concrete
2: Support 3: Tosa

Claims (13)

And an arch barrel (1a) in which a plurality of unit blocks (11, 11 ') whose both ends are inclined such that the upper portion is wider than the lower portion,
The first hinge projections 111 and 111 'protrude from one end of one end of the unit block 11 and the first hinge protrusions 111 and 111' A second hinge protrusion 113 is formed on one side of both lower ends of the unit block 11 and 11 'and a second hinge protrusion 113 is formed on the other side of the second hinge protrusion 113, The second hinge groove 114 having a shape corresponding to that of the second hinge groove 114 is formed,
The arch barrel 1a is formed so that the first hinge protrusion 111 and the second hinge protrusion 113 of the unit block 11 are connected to the first hinge groove 112 ' The unit blocks 11 and 11 'are continuously engaged so as to be accommodated in the groove portion 114'
The first hinge protrusion 111 and the upper portion of the first hinge recess 112 'and the lower portion of the second hinge protrusion 113 and the second hinge recess 114' of the unit block 11, 11 ' And a V-shaped space is formed between the adjacent unit blocks 11 and 11 'so that the unit blocks 11 and 11' can be rotated bidirectionally between adjacent unit blocks 11 and 11 ' 1a) is allowed to be deformed.
delete delete The method of claim 1,
A first through hole 115 is formed in the longitudinal direction of the arch barrel 1a at the upper portion of the central axis on the cross section of the unit block 11 and 11 'and a plurality of unit blocks 11 and 11' Are connected to each other by a tensile material (12) inserted through the through hole (115).
The method of claim 1,
In the arch structure 1, a plurality of arch barrels 1a and 1b are tightly coupled to each other in the transverse direction, and the second through holes 116 are formed in the unit blocks 11 and 11 'in the width direction of the arch structure 1. [ , And a plurality of arch barrels (1a, 1b) are interconnected by a connecting wire (13) inserted into the second through hole (116).
The method of claim 1,
The unit block 11 includes an upper panel 11a having the first hinge protrusion 111 on one side and a first hinge recess 112 on the other side, And a connecting member 11c connecting the upper panel 11a and the lower panel 11b to each other. The lower panel 11b is formed with the protrusion 113, the second hinge groove 114 at the other end thereof, Characterized in that a hollow portion (14) is formed between the upper panel (11a) and the lower panel (11b).
The method of claim 6,
Wherein the unit block (11) comprises an upper panel (11a), a lower panel (11b) and a connecting member (11c) assembled separately.
The method of claim 6,
Wherein the hollow portion (14) is filled with concrete (15).
9. The method of claim 8,
A plurality of arch barrels 1a are tightly coupled to each other in the transverse direction of the arch structure 1 and the connecting wire members 13 are arranged to extend across the hollow barrel 1a in the width direction of the arch barrel 1a, Wherein the concrete (15) is filled. ≪ RTI ID = 0.0 > 18. < / RTI >
The method of claim 1,
Characterized in that the end pads (118) are coupled along a side end shape to all or part of one end or both ends of the unit block (11).
A ducted arch structure according to claim 4,
(a) A support bar 2 is installed at both ends of a position where the arch structure 1 is to be installed and a plurality of unit blocks 11 are connected to the tension bar 12 on the work surface to construct an arch barrel 1a ;
(b) mounting both ends of the arch barrel (1a) on the upper part of the support base (2) by centering the center of the arch barrel (1a); And
(c) backing up the gravel (3) on top of the arch barrel (1a); Wherein the first and second portions of the buckling structure are substantially parallel to each other.
12. The method of claim 11,
In the step (a), a plurality of arch barrels 1a are provided, and in the step (b), a plurality of arch barrels 1a are tightly coupled in the lateral direction to form a plurality of rows, The second through hole 116 is formed in the width direction of the arch structure 1 so that the connecting wire member 13 is connected to the second through hole 116 after the plurality of arched barrels 1a are installed in step (b) And the plurality of arch barrels (1a) are interconnected in the width direction.
12. The method of claim 11,
The unit block 11 includes an upper panel 11a having the first hinge protrusion 111 on one side and a first hinge recess 112 on the other side, And a connecting member 11c connecting the upper panel 11a and the lower panel 11b to each other. The lower panel 11b is formed with the protrusion 113, the second hinge groove 114 at the other end thereof, ,
Wherein the concrete 15 is filled between the upper panel 11a and the lower panel 11b after the arch barrel 1a is mounted in the step (b).

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