KR20030089754A - joint for one or multi connection and strucrure construction method using the same - Google Patents

Abstract

PURPOSE: A single/multi-shaft joint is provided to reduce construction errors on connecting reinforcing bars or members and to construct a structure economically and effectively by using for coupling precast segment structures and connecting temporary materials. CONSTITUTION: The single/multi-shaft joint(100) contains: a joint body member(110) provided with many fitting holes(111) for a joint connection member; and a joint connection member(120) composed of a head unit(121) which is larger than the hole to be suspended on one or both holes of the joint body member(110) and a length unit(122) extended outward from the joint body member through the hole.

Description

Joint for one or multi connection and strucrure construction method using the same}

The present invention relates to a joint capable of connecting one axis and multiple axes (two or more axes) and a structure construction method using the same. More specifically, in the interconnection of reinforcing bars or structural / non-structural members, in order to solve the problem of not being connected to each other in a straight line or the correct position due to actual construction errors, the angular displacement and rotation at the connection of the reinforcing bars and members are freely By absorbing construction errors that may occur in connection of reinforcing bars or members in uniaxial and multi-axial directions, it is more economical and efficient by using them for joining precast segment structures of various structures and connecting truss structures. The present invention relates to a joint capable of uniaxial and multiaxial connection for constructing a structure and a method of constructing a structure using the same.

The construction method using the conventional precast segment is possible to reduce the construction of the concrete in the field, the dry work is possible, the precast segment is a bridge, retaining wall, It is widely used in the construction of concrete structures such as walls. The most technical problem in the method of constructing a structure using such a precast segment is whether the segment and the segments can be easily combined in the field while securing structural strength with each other. In other words, when placing concrete in the field, it is possible to avoid the construction joints caused by the concrete placement as much as possible in the construction, and to select the location where the structural strength does not affect the concrete construction joint part, but the precast segment In the case of a structure, a segment member having a large weight needs to be transported and installed in a site such as a crane, thereby minimizing the segment member due to workability and economical efficiency, and thus, there is a problem in that a number of coupling parts between the segment members increases. In the case of such a joint site, a problem arises in that in the case of a concrete structure, the reinforcing bars protruding from the inside of the segment member must be connected to each other structurally without any influence. The method of connecting the reinforcing bar is mainly used a mechanical joint method, such as a coupler or a back joint, depending on the diameter of the rebar. However, the problem of such mechanical joints is that the reinforcing bars to be connected to each other are rarely positioned in line with each other due to errors in field construction, such as the installation of segment members, and they are bent so as to be placed in a straight line and faced with each other using a coupler. In case of connecting, there is no choice but to impose reinforcement on the reinforcing bar, and the connection part of the reinforcing bar where the stress is concentrated in the connecting part structurally fails to function properly. In addition, there is a problem in that the construction is very poor because it is not possible to connect the reinforcing bars in the state in which the segments and the segments are opposed to each other due to the space constraint.

Furthermore, in the case of simple and complex truss structures, when truss members are connected to each other in a multi-axial direction, the truss member connection is also fixed by connecting the truss members to each other in various axial directions by a bolt or the like. Therefore, there is a problem that it is very difficult to connect the truss member to the exact position of the connecting plate, and in addition to the truss structure, in the case of bridge structures (especially FSM bridge construction method), which is inevitable to install a plurality of scaffolds and temporary materials such as copper bar This problem also occurs when connecting the groups together in a multi-axis direction.

The present invention can solve the above problems due to construction errors that can occur when reinforcing rods and members are connected to each other in the uniaxial and multi-axial direction in the construction of such precast segment structure, truss structure and scaffolding and copper bar installation Joints have been developed that allow uniaxial and multiaxial connections to be used in structural construction.

SUMMARY OF THE INVENTION An object of the present invention is to absorb a connection construction error of a member such as rebar, which may occur when constructing a structure using a precast segment, thereby making it possible to precisely construct a joint of the precast segment, thereby facilitating a smaller divided precast segment. It is to provide a joint and a construction method using the same joint that can be constructed.

Another object of the present invention in the construction of structures (FSM bridge construction method, etc.) that require a lot of installation of temporary materials, such as scaffolding, copper barri, etc., in the connection of the temporary members in the multi-axis direction, as well as absorb the connection construction errors, and easy assembly It is to provide a joint and the construction method using the same easy installation cost and work.

Yet another object of the present invention is to provide a hinged joint that can be an ideal structure for a truss, unlike conventional truss connection connections in construction and civil truss structures. The present invention provides a method for constructing a structure in which a bridge truss structure can be easily assembled and dismantled by absorbing a connection construction error in the connection of a truss member and at the same time using a longer truss.

1A, 1B and 1C are specific examples of a joint (uniaxial) in which a spherical joint body member, a joint connecting member, and a connector are coupled to each other.

Fig. 1D is a specific example of the figure showing the function of the hole of the joint trunk member of the joint (uniaxial).

Figure 1e is a specific example of the clamp of the joint body connecting member of the joint (uniaxial).

2A, 2B and 2C are specific examples of a joint (uniaxial) in which a pipe-shaped joint body member, a joint connecting member, and a connector are coupled to the present invention.

2D is a specific example of a joint (uniaxial) in which the joint body connecting member and the joint body member are integrated.

Figure 3 is a specific example of the state in which the tightening portion is formed in the joint body member.

Figure 4 is an embodiment showing in detail the connection of the precast segment structure using the joint (uniaxial) of the present invention.

5A, 5A, 5C and 5D are embodiments of various precast segment structures using a joint (uniaxial).

6A, 6B, 6C and 6D are examples of joints (multi-axes).

7 is a specific example in which a joint (multi-axis) is applied to the truss structure.

<Description of the symbols for the main parts of the drawings>

100,200: joint (uniaxial, multi-axis) 110,210: joint body member

120, 220; joint connecting member 111, 121: hole

The present invention is to connect the structural / non-structural members such as bridges, retaining walls, boxes, trusses, temporary installation, etc. in the uniaxial and multi-axis direction, the rotation and angular displacement of the connecting members are possible, both compressive and tensile forces transmitted from the connecting member It is possible to support the joint with superior mechanical properties, so that the construction error of the connection member can be absorbed, and more precise structure construction is possible. The technical feature is that economic construction is possible. 1 to 7, the most preferred embodiment of the present invention will be described in the order of the joint and the structure construction method using the same.

Joints of the present invention are largely divided into joints that can be connected in one axis and multi-axis direction. The joint capable of connecting in one direction is used as a connector of a member included in a structure that can be continuously constructed in the longitudinal or transverse direction, and the joint capable of connecting in the direction of the multi-axis (two or more axes depending on the use) is a truss. Or it is used as a connection tool when the member connection of the multiaxial direction like a scaffolding and a clubbing is needed.

<Joint (100) capable of uniaxial connection>

The joint 100 capable of connecting in the uniaxial direction includes: a joint body member 110 in which a plurality of joint connecting member insertion holes 111 are formed; And a head portion 121 larger than a hole so as to be caught in both holes or any one hole facing each other of the joint body member, and a length portion 122 formed outside the joint body member through the hole in succession. And a joint connecting member 120 formed with the joint body member interposed therebetween.

The joint body member 110 is shown in a spherical shape in Figures 1a, 1b and 1c the overall shape, but may be formed in a cylindrical or square pipe shape as shown in Figures 2a, 2b and 2c, it is limited to Rather, it serves to accommodate the joint connecting member described later.

In addition, the joint body member 110 is a hole 111 that can be formed to the outside through the length portion 122 is formed in succession with the head is caught by the head 121 of the joint connecting member 120 to be described later Two are formed. 1D shows the function of this hole 111. That is, since the diameter of the hole is slightly larger than the diameter of the joint connecting member 110, the angle of the joint connecting member can be changed so that the joint is installed slightly off the original position in the actual construction of the joint connecting member. Even if the connection error due to the construction error can be absorbed. This function is a technical feature that can more accurately connect the connecting members of the precast segment to be connected in a straight line.

Furthermore, the joint connecting member 120 can be rotated through the hole so that the joint is not constrained to rotation and can be connected to each other in a bolt / nut manner while rotating the joint connecting member, thereby improving the workability of the connecting member. In addition, the rotation is constrained so that unnecessary twist and shear stress does not occur in the entire joint.

The size of the joint body member 110 and the hole 111 is changeable by the diameter of the joint connecting member or the like, and is preferably made to a minimum size to facilitate the installation. The material is preferably steel, but sufficient Plastic materials can be used as long as they are durable.

1A, 1B and 1C show specific embodiments in which the overall shape becomes spherical because the same joint connecting member 120 is connected to both sides, and one side of the joint connection is shown in FIGS. 2A, 2B and 2C. Since the member 120 installs the joint connecting member 120 on the other side using the clamp 140 such as a sleeve, the member 120 is formed in a cylindrical or square pipe shape by necessity of forming the inner space somewhat larger.

The joint connecting member 120 includes a head 121 and a length 122. The head 121 is formed inside the joint body member so as to be caught in a hole, and a length part 122 is formed to extend outwardly of the joint body member in succession with the head 121 to form a joint. It forms a connecting member.

The shape of the head portion is larger than the size of the hole, and has a function to prevent falling out when a tensile force is applied to the joint connecting member and is formed in a semicircular shape in FIGS. 1A and 1B but may be formed in a spherical shape as shown in FIG. 1C. It may be formed in a square or circular cross section, such as 2a.

The length part 122 is formed continuously with the head part 121, and the tightening part 123, such as a hexagon nut, is formed on the outer circumferential surface thereof so as to connect the joint connecting member to the connector 130 such as a coupler or the like. Easy to fasten

The joint 100 is further formed with a connector 130, such as a separate coupler at the end of the length portion of both joint connecting member 120. That is, the length of the joint connecting member is connected to one side of the connector 130 as shown in FIGS. 1 and 2, and the other connecting member of the precast segment structure is connected to the other side. In other words, it connects the joint and the structure in the middle. FIG. 1A shows an example in which male threads are formed at both ends of the joint connecting member 120 so that the female thread is connected to the connector 130 formed on the hollow inner surface by screwing. Further, as shown in FIG. Joint connection member fixture 131 may be further formed, Figure 1b is an example in which both ends of the length of the joint connection member 120 is formed by connecting the fastener 132, such as a sleeve is formed in the connector 130 is hollow Is shown.

Connection method of the joint connecting member 120 and the connector 130 may be separated from each other by a coupler type using a screw or a fastener as described above, but may be formed integrally with each other as shown in Figure 2d, which is separate There is an advantage that no bonding process is required.

In FIG. 2A, the headless length of the separate joint connecting member 120 is connected to the connector 130 by using a fastener such as a sleeve through a hole in which one of the cylindrical and square pipe-shaped joint body members 110 is completely opened. 2c shows an example in which the joint connecting member is connected to the joint body member by itself.

<Structure construction method using joint 100 that can be uniaxially connected>

The joint 100 is used in a method of constructing a structure by coupling the precast segment member in a straight line in the longitudinal or transverse direction with respect to a specific reference axis. A representative embodiment is shown in FIG. 5A. In FIG. 5A, structures composed of a square plate-shaped base, a column such as a piers, and a slab plate are joined to each other in the longitudinal and lateral directions by a precast segment member that is divided into a minimum. In the case of joining so many segment members, the weight of each segment member is small, so that a heavy lifter such as a crane having a smaller capacity can be used, which in turn reduces construction costs and improves construction. The more such segment members, the more joint portions are generated. Therefore, it is very important to connect the connecting member of the segment member and another segment member in a straight line with each other by various construction errors, but this becomes a very difficult task in reality due to the construction errors. However, when using the joint 100 of the present invention can provide a joint that can absorb the construction error can solve this problem. Furthermore, even when the joint 100 is used, when the precast segment member is divided into many parts, there are many connecting parts. Therefore, it is very cumbersome to connect them manually, especially when the connection construction space is narrow. . In order to solve this problem, Figure 4 shows a means that can be easily constructed. That is, Figure 4 is an enlarged view of the connecting portion of the left, right precast segment member 300, the connection member 310, which should be in a straight line with each other from each segment member 300, the male thread is cut at the end of the connection member, Reinforcing bars formed with a separate male thread part may be connected by pressure contact.) Is connected by a connector 130 such as a coupler, a joint connecting member 120 screwed to the connector and a spherical joint body 110. If the space for installing the connector, the joint connecting member and the joint body is not formed, it is very difficult to install them. Accordingly, in the present invention, a separate space, that is, a joint formation space 400, is formed at the connection portion of each segment member so that they can be installed in an open space. The size is preferably limited to a size that can be easily installed by the operator at least, and is filled by filling the filler such as mortar after the connector and the joint is installed. In this case, by forming a fine hole in the joint body member separately, the filler such as mortar may be filled in the joint body member.

FIG. 5 illustrates specific examples in which various structures are completed by precast segment members using the joint formation space 400 and the joint 100 capable of uniaxial connection.

5A shows a case of a structure including a foundation, a pillar, and a slab plate as described above. If necessary, a hole penetrating each segment member is formed, and through this hole, a stranded wire or a steel rod is properly applied to the internal stress. Inserts can be inserted to counteract and settle after tension to increase the durability and rigidity of the structure. FIG. 5B shows an embodiment of various retaining wall structures (specific parts can be cast in the field as needed), FIG. 5C shows an embodiment of various box structures, and FIG. 5D shows a wall formed on a column. It shows an embodiment applied to.

<Joint 200 capable of connection in multiple axes>

The joint 200 capable of connecting in the multi-axis direction includes: a joint body member 210 having a plurality of joint connecting member insertion holes 211 formed therein; And a head portion 221 larger than the hole so as to be caught inside the hole of the joint body member, and a length portion 222 formed outside the joint body member through the hole in succession to the joint body, the center of the joint body member. It includes a joint connecting member 220 formed a plurality of radially.

Joint body member 210 is shown as a spherical shape in Figure 6, but the overall shape is not limited to this, and functions to accommodate the joint connecting member described later, the head portion of the joint connecting member is spread over each degree to some extent And a hole 211 having a size that can be rotated is the same as the joint 100 that can be uniaxially connected, and the joint connecting member 220 is also formed through the hole, and only one radially multi-axial direction is formed. The difference is that they can be connected to the joint body members, respectively.

The joint connecting member 220 is also divided into the head 221 and the length, and the joint 200 capable of connecting only multiple axes (more than two axes for each use) is mainly used for temporary materials and truss structures, so that each pipe or angle is connected to the joint. It is used as a connecting member.

In FIG. 6A, a compression support 230 such as a steel ball may be further formed inside the spherical joint body member 210 in contact with the head of the joint connecting member 220. The compression support is formed to be in contact with the head of the joint connecting member connected to the joint can support it even if a compressive force as well as a tensile force is applied to the joint connecting member. Due to the technical feature that the joint connecting member can be changed and rotated to some extent through the hole of the joint body member, especially when the truss member is used as the joint connecting member, the connecting part is always hinged, which causes distortion and shear stress due to unnecessary rotational restraint. This does not occur and there is a mechanical advantage such as not having to consider the mechanically unnecessary stress as much. Figure 6b is another embodiment of the joint 200, the head of the joint connecting member is formed in a spherical shape, because it is installed in close contact with each other there is a technical feature that can support the compression force without a separate compression support, Figure 6c The head of the joint connecting member is formed in a spherical shape, is installed with a slight space margin and shows a case in which a bearing is included to further facilitate the rotation of the joint connecting member, Figure 6d is a joint ( A joint connection member fixing member 230, such as a nut, is further formed on the joint connection member connected to 200 to allow the joint connection member to support the compressive force, and injects lubricant into the inside of the joint body member. It is shown that the rotation and movement of the head of the joint connection member to be formed can be free.

<Structure construction method using the joint 200 that can be connected in the multi-axis direction>

The joint 200 capable of connecting in the multi-axis direction may be mainly used as a connector of a truss structure of civil engineering or construction, and may be particularly applied to a bridge construction method (particularly an FSM bridge construction method) in which many temporary bridges and scaffolds should be installed. .

That is, in the case of truss structures or temporary materials, huge members are connected to each other in different directions, and these connections can be very fragile structurally, so how fast can they be assembled and installed, and structurally safe? It is important. The function that can ensure the ease of assembly is that the joint connecting member installed in the hole of the joint body member of the present invention can be displaced and rotated so that it can process the connection part using the joint quickly while absorbing construction errors. It can be secured, and the structural safety can be applied simultaneously with compressive or tensile force in the case of truss structures or temporary materials, and it can sufficiently support such loads. Especially, since it is free to rotate, unnecessary distortion and shear stress do not occur. By the same cross section can be secured by the self-installation of the rotation of the compression support and the joint connecting member inside the joint body member can ensure more enhanced structural safety.

7 shows a front view of the bridge truss structure 500 using the joint 200 of the present invention. Typically, the truss structure for bridges is made in the shape of an arch, and this arcuate truss generates numerous connections. In the case of using the joint 200, which can be connected to the multi-axial connection of the present invention, the arcuate truss can be manufactured in a faster time, and thus, there is an advantage in that it can be installed more quickly in long distance (by securing structural stability).

Although not shown in the drawings, even in the case of a temporary member coupled to and installed by a roof structure or a large number of angle pipes and clamps, the joint 200 of the present invention is economical and more structurally stable in its installation and dismantling work. The advantage is that it can be installed.

The uniaxial and multi-axis joint and the structure construction method using the same of the present invention can be used in a variety of structures, temporary materials, trusses, etc. constructed in the precast segment method, if the core technical concept of the present invention It will be included in the technical scope.

In the interconnection of the reinforcing bars or structural members by the joint of the present invention, each displacement in the connection portion of the reinforcing bars and structural members connected to each other so as to solve the problem of not being connected to each other in a straight line or the correct coupling position by the actual construction error and By freeing rotation, it is possible to absorb construction errors that may occur in connection of reinforcing bars or members in uniaxial and multi-axis directions (more than two axes for each use), and furthermore, to connect precast segment structures of various structures and to connect temporary materials. By using it, the structure can be constructed more economically and efficiently.

Claims (12)

A joint body member having a plurality of joint connecting member insertion holes; And, The joint body member includes a head larger than a hole so as to be caught inside each other hole or any one hole of the joint body member and a length portion formed outside the joint body member through the hole in succession, and the joint body member in a straight line A joint connecting member formed with the gap in between; And a hole having a larger size than the head of the joint connecting member, wherein each displacement and rotation of the length of the joint connecting member are free. A joint body member having a plurality of joint connecting member insertion holes; And, A joint larger than the hole so as to be caught inside the hole of the joint body member, and a length portion formed out of the joint body member through the hole in succession, the plurality of joints being formed radially around the joint body member absence; And a hole having a larger size than the head of the joint connecting member, wherein the angular displacement and rotation of the length of the joint connecting member are free. The method of claim 2, wherein the head of the joint connecting member and the other head itself is in contact with each other to form a head or a circular or polygonal head or contact with the other head using a compressive force support such as a metal ball The joint is capable of uniaxial and multi-axis connection, characterized in that the joint connecting member can be subjected to tensile and compressive forces. According to claim 1 or 2, the joint connecting member fixture is further installed on the outer surface of the joint body member, such as a nut coupled with the joint connecting member, the joint connecting member is fixed to the joint body member does not move even if the joint connecting member is pressed. Features single and multi-axis joints. The joint according to claim 1 or 2, wherein a joint part such as a polygonal nut is further formed at a length of the joint connection member. The connector of claim 1, wherein a coupler, such as a coupler, is further formed at both ends of each of the joint connecting members, each of which includes a head and a length, respectively, in the holes of the joint body member, so that the other connecting member is coupled to the connector. Joints with uniaxial or multi-axis connection. The connector of claim 1, wherein a connector is further formed at an end portion of the joint connecting member including a head and a length at one hole of the joint body member, and the joint connecting member without a head is formed at the hole of the other joint body member. The joint is connected to the joint body member by a fastener, such as a joint capable of uniaxial or multi-axis connection, characterized in that the connector is further formed at the end of the joint connection member without a head. The connector of claim 6 or 7, wherein the connector formed at the length of the joint connecting member is formed by screwing the length of the joint connecting member separately from the coupler, or is formed integrally with the coupler. Joint with multi-axis connection. In constructing a structure completed by joining a plurality of precast segment members to each other in a specific one direction such as foundation, retaining wall, box, pier, bridge deck, etc. A structure using a joint capable of uniaxial and multi-axis connection, wherein the precast segment members are coupled to each other by connecting members formed by protruding from the segment member to the connector of the joint capable of uniaxial and multi-side connection of claim 6 or 7. Construction method. 10. The method of claim 9, wherein the joint portion with the precast segment member is a joint receiving space is formed in each of the precast segment member so as to install a joint capable of uniaxial and multi-sided connection, the receiving space is mortar after the joint is installed Method for constructing a structure using a joint capable of uniaxial and multi-axis connection, characterized in that the filling with the injection material. The method according to claim 9 or 10, further through the precast segment member coupled to each other to form a hole, reinforcing the coupling of the precast segment member by fixing after the tension using a strand or steel rod in the hole Structure construction method using a joint capable of uniaxial and multi-axis connection, characterized in that. In the construction of a structure in which members are joined to each other in at least two axial directions such as bridges, scaffolding, trusses, etc., The method of constructing a structure using a uniaxial and multi-axis connection is characterized in that the member is coupled to each other by a joint capable of uniaxial and multi-sided connection of claim 3 or 4.