KR101858614B1 - A reinforced built-up beam using a bended steel plate and a manufacturing method thereof and an end connection system - Google Patents

Abstract

The present invention relates to a reinforcing built-up beam used as a steel structure of various architectural structures, in which the reinforcing built-up beam having the superior performance and reinforced structure is manufactured by curved side structures formed on both sides of a bent steel plate, a steel structure reinforcing bar, a performance reinforcing round bar formed on an inner corner of the bent steel plate and a structure reinforcing stiffener located inside the round bars at a regular interval. An end reinforcing connection system is drawn in the crossing direction or length direction of the built-up beam, so that the steel structure having very high structural strength can be constructed due to the structure and performance reinforcing built-up beam. It can save the cross sectional weight of about 20% or more as compared with existing steel structure, and it is very economical because it can reduce the amount of steel to be used and the construction can be conveniently performed due to the light-weight built-up beam. Since it is possible to construct a structure having a large span of 100 m or more, an efficient reinforcing structural system optimized for the internal space utilization can be constructed. The workability in the field can be improved and the construction completeness can be greatly improved. Since a galvanized bent steel sheet or hot-rolled steel sheet is excellent in corrosion resistance, rust is not created so that it is very easy to maintain the steel structure using the reinforcing build-up beam, and it is possible to increase durability and life span.

Description

TECHNICAL FIELD [0001] The present invention relates to a rigid built-up beam using a bend-molded steel plate, a method of manufacturing the same, and a system for connecting a built-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rigid built-up beam used as a steel structure of various architectural structures, and more particularly, to a rigid built-up beam having a bending moment and a tensile shear force maximized by using a bending- A rigid built-up beam and its fabrication that can be used as a steel structure for various types of orthopedic and irregular structures such as a hooded steel structure or a cultural exhibition facility for micro pressure wave reduction installed at the mouth and the exit of a high-speed railway through a beam Method and an end connection system of a built-up beam.

In general, the construction of a structure is a field construction where the member is manufactured and assembled in the field according to the construction method, a structure for manufacturing and processing the member in the factory, and assembling and installing the member in the field. And a prefabrication structure capable of shortening the period.

Also, in the case of a small-sized, structured structure, a module construction method is proposed in which a module or a panel of a structure is manufactured at a factory and then transported to a construction site and then assembled and constructed in a simple manner. In the case of a structure, an irregular steel structure is installed by using a C-shaped steel such as the No. 10-0684931 or the No. 10-1063240, and then the steel structure is mounted on the steel structure to form an irregular structure It will be constructed.

In the case of the above-mentioned Japanese Patent No. 10-0684931, since a unit member is used in which a thin steel plate is bent, it can be manufactured economically as compared with a conventional closed steel frame member, and is made of an iron plate having a thin section, The present invention relates to a prefabricated closed-type steel frame member capable of increasing the binding force of concrete when used as a pillar.

In addition, in the case of the above-mentioned Japanese Patent No. 10-1063240, a dimple is formed on a side plate and a through hole is formed in a central portion of the dimple through a screw or a bolt. When assembling the screw or bolt through the through hole, Is inserted into the dimple to prevent the head of the screw or bolt from protruding to the side of the lightweight steel frame, and when the panel is joined to the frame made of the lightweight steel frame, the face of the panel is brought into close contact with the frame, And to prevent the panel from generating noise by bumping against the frame.

In the case of a steel structure using a steel pipe or a steel pipe as described above, welding or flange fastening is applied when joining steel or beam ends. In the above joining joint, Frequently, the end joints of the steel are accompanied by various types of reinforcement work.

That is, by partially cutting the lower flange portions of the steel steel beams on the joint portions of the steel structure reinforced with the reinforcing beam as in Patent No. 10-1504246, the amount of joint plates used for joining steel steel structures can be reduced, And the end-reinforced steel structure is proposed and registered.

However, since the steel structure used in various conventional building structures must be connected and cut after the worker directly cuts and bends the steel material in the field in order to construct the construction structure, it takes a long time in such a work process, And the like.

In addition, it has a closed end where the overall structural strength of the steel structure is remarkably reduced due to a decrease in structural stiffness due to excessive section reduction for light weight or buckling due to stress reduction, and the end connection or cross-connection structure by welding or bolt fastening Since additional flange reinforcement work or coupler fastening work should be applied, the work time is very long and the increase of the construction cost thereby causes the entire construction period to be delayed.

In particular, various shapes of steel such as a pipe or stud or an H-shaped or C-shaped beam used in a conventional steel structure have a considerable weight due to a high amount of steel used. In a steel structure constructed with such a material, , It is inevitable that the heat column is built on the inner side to construct the entire structure or it is limited to the dome shape or the tunnel shape. It is a fact that it is a significant obstacle to the design and construction of the irregular building structure as well as the loss of the internal usable space such as designing.

Korean Registered Patent No. 10-0684931 (Registered on February 13, 2007) Korean Registered Patent No. 10-1063240 (registered on September 1, 2011) Korean Registered Patent No. 10-1504246 (Registered on March 13, 2015)

The present invention has been made to solve the problems as described above, and it is an object of the present invention to provide a steel reinforcing bar and steel reinforcing stiffener which are positioned at regular intervals in a reinforcing round bar of a steel structure reinforcing bar and inner corners of upper and lower curved side structures, A built-up beam in which the performance and the structure are reinforced can be manufactured, and the built-up beam connecting system in the cross direction or the longitudinal direction is found,

The beam with high structural rigidity enables the structural performance of the steel structure to the orthopedic or irregular structure through the beam. The built-up beam realized by weight reduction by the reduction of the section reduces the self weight of the whole steel structure, Spindle structure having a very effective and reasonable characteristic in the construction of various types of steel structure by freeing the connection and extension in the cross direction or longitudinal direction through the end reinforcement of the built-up beam, The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a stiffened built-up beam using the stiffened beam, a method of manufacturing the stiffened built-

According to the present invention as described above, a built-up beam having a tubular shape is formed by connecting and fixing individual objects divided and formed along the longitudinal direction, the built-up beam including a rectangular double side curved side structure bar; A rectangular steel structure reinforcing bar positioned above and below the curved side structure bar; A performance reinforcing round bar connecting the curved side structure bars and the steel structure reinforcing bars in the longitudinal direction at inner corners between the curved side structure bars and the steel structure reinforcing bars; And a structure reinforcing stiffener fixed at a predetermined interval in an inner space formed by connection of the upper and lower steel structure reinforcing bars on both sides of the curved side structure bar.

In addition, after each of the curved side structure bar and the steel structure reinforcing bar using the bending-molded steel sheet, the performance reinforcing round bar using the steel bar, and the structural reinforcing stiffener using the steel plate were manufactured, the lower steel structure reinforcing bar was placed on the bottom, A first laying process for placing a first curved side structure bar at one side of the bar and placing a first performance reinforcing round bar between the lower steel structure reinforcing bar and the end of one curved side structure bar; A first welding step of welding the lower steel structure reinforcing bar, the one side curved side structure bar and the first performance enhancing round bar by the first laying process; A second laying step of erecting and installing a structural reinforcing stiffener on the inside of the lower steel structure reinforcing bar and the one curved side structure bar at regular intervals; A second welding process for welding and fixing the structural reinforcing stiffener to the lower steel structure reinforcing bar and the one curved side structure bar; A third laying process for laying the other side curved side structure bar and the second performance reinforcing round bar on one side of the lower steel structure reinforcing bar and the structure reinforcing stiffener; A third welding step of welding the other curved side structure bar and the second performance reinforcing round bar to each other by welding the structural reinforcing stiffener and the lower steel structure reinforcing bar to each other; A fourth laying process for placing the upper and lower steel structure reinforcing bars for the third and fourth performance reinforcing round bars on both the curved side structure bars and the structural reinforcing stiffener; And a fourth welding step of simultaneously welding the reinforcing round bars exposed between the opposite ends between the upper and lower steel structure reinforcing bar and the curved side structure bars and the inner performance reinforcing round bars exposed between the opposite ends simultaneously through the automatic welding machine. The present invention provides a method of manufacturing a rigid built-up beam using a bending-molded steel sheet.

In addition, a connecting plate is fixedly formed on both outer sides of the built-up beam, and a reinforcing connection is formed at the end of another built-up beam. By the hinge coupling between the connecting plate and the reinforcing coupling, Another object of the present invention is to provide a cross direction connection system of a rigid built-up beam configured to be connected.

The end reinforcement member is inserted into and fixed to the inside of each end of the built-up beam, and the end reinforcement member is provided with a separate reinforcing extension hole so as to be tightly fixed to the end reinforcement member. The present invention also provides a longitudinal connecting system of a rigid built-up beam in which the up beams are connected in the longitudinal direction.

The present invention is able to construct a steel structure having a very high structural rigidity due to a structural and performance reinforced rigid built-up beam, and can reduce a cross sectional weight of about 20% or more as compared with a conventional steel structure, It is very economical because it can reduce the amount of steel used as well as the convenience of construction, and it is possible to construct a structure having a large space of span of 100 m or more, so that an efficient rigid structural system of an optimized type of internal space can be constructed , And the workability of the work can be greatly improved, and the workability of the work can be greatly improved. Since the steel sheet with galvanized steel is excellent in corrosion resistance and does not cause rusting, maintenance of the steel structure by the rigid built- It is possible to increase durability and increase the service life.

1 is an overall perspective view of a built-up beam according to the present invention;
2 is an exploded perspective view of a built-up beam according to the present invention.
Fig. 3 is a side view of the built-up beam according to the present invention
4 is a block diagram of the built-up beam manufacturing process according to the present invention.
5 is a view illustrating a corner welding process of a built-up beam according to the present invention
FIG. 6 is a perspective view showing a state in which the built-up beams are connected in the cross direction according to the present invention.
Fig. 7 is an exploded perspective view of the connection portion according to Fig.
8 is a side sectional enlarged view of the connecting portion according to FIG.
Fig. 9 is an enlarged plan view of the connecting portion according to Fig. 6
Fig. 10 is an operation diagram of the connection portion according to Fig.
11 is a perspective view showing another embodiment of the built-up beam connecting state in the cross direction according to the present invention.
12 is a perspective view showing a longitudinal connection state of a built-up beam according to the present invention;
Fig. 13 is a partially exploded perspective view of the connection portion according to Fig.
Fig. 14 is a perspective view showing the entire connecting perspective view of the connecting portion according to Fig.
15 is a cross-sectional enlarged view of the connecting portion according to Fig.
Fig. 16 is an enlarged cross-sectional view of the connection portion according to Fig. 12
17 is a view showing an example of construction using a built-up beam according to the present invention
Fig. 18 is another example of the construction using the built-up beam according to the present invention
Fig. 19 is another example of the construction using the built-up beam according to the present invention

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor may properly define the concept of the term to describe its invention in the best possible way And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

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

FIG. 1 is a perspective view of a built-up beam according to the present invention, FIG. 2 is an exploded perspective view of a built-up beam according to the present invention, and FIG. 3 is a side view of a built-up beam according to the present invention.

First, the built-up beam according to the present invention is a rigid built-up beam manufactured by bending a galvanized steel sheet or a hot-rolled steel sheet which is excellent in corrosion resistance and does not generate rust, But it is not a form of a section steel or a bending type stud but a part having a certain length and divided along the longitudinal direction to connect and fix each other to a tube shape.

That is, each of the individual entities may include curved side structure bars 110 and 110 ', steel structure reinforcing bars 120 and 120', performance reinforcing round bars 130 and 130 ', structural reinforcing stiffeners 140 ) 140 '. By welding and connecting and fixing these individual objects, a rigid built-up beam in the form of a tube can be completed.

Here, the curved side structure bars 110 and 110 'are positioned on both sides of the built-up beam 100 in the longitudinal direction. The curved side structure bars 110 and 110' are curved along the longitudinal direction using the galvanized steel sheet or hot- .

Also, the steel structure reinforcing bars 120 and 120 'can be manufactured using a galvanized steel sheet or a hot-rolled steel sheet, and the reinforcing groove portions 121 and 121' are bent at the center along the longitudinal direction The steel structure reinforcing bars 120 and 120 'are arranged and fixed in the longitudinal direction on the upper and lower sides of the built-up beam, respectively.

The curved side structure bars 110 and 110 'on both sides and the steel structure reinforcing bars 120 and 120' on the upper and lower sides of the upper and lower reinforcing bars 130 and 130 ' And is welded and fixed together with the curved side structure bars 110 and 110 'and the steel structure reinforcing bars 120 and 120' at the same time, will be.

The structural reinforcing stiffeners 140 and 140 'are fixed at predetermined intervals in a built-up beam having a tubular shape. The curved side structure bars 110 and 110' and the steel structure reinforcing bar 140 ' 120 'of the steel structure reinforcing bars 120 and 120', and the upper and lower ends of the reinforcing groove 120 (120 ') are formed of metal plates having the same outer shape as the inner cross- The round bars 141 and 141 'are formed at the corners of the four sides so as not to interfere with the performance enhancing round bars 130 and 130' Grooves 142 and 142 'are formed.

Therefore, the built-up beam 100, which is formed by connecting the respective individual objects through welding or the like, has curved side structure bars 110 and 110 'on both sides along the longitudinal direction, Reinforced steel bars 120 and 120 'having reinforcing groove portions 121 and 121' formed along the longitudinal direction are formed on the upper and lower sides of the steel reinforcing bars 120 and 120 ' The structural reinforcement stiffeners 140 and 140 'are fixedly formed at predetermined intervals along the longitudinal direction.

The curved side structure bars 110 and 110 'may provide a predetermined cushioning property to the built-up beam 100 itself and impart a strong bending moment to the reinforcing bars 120 and 120' The structural reinforcement stiffeners 140 and 140 'serve to maximize the shearing force of the built-up beam 100 together with the strong bending moment in the case of the structural reinforcing round bars 130 and 130' ) Also maximizes the bending moment and the shearing force.

Therefore, the built-up beam 100 of the present invention is formed by bending a metallic steel sheet and connecting them through a method such as welding. Since the amount of steel used is significantly reduced compared to a conventional steel structure, The bending moments and the tensile forces due to the structural reinforcement are greatly improved as compared with the beams or the sections formed by the bending molding.

Particularly, in the case of the curved side structure bars 110 and 110 'and the steel structure reinforcing bars 120 and 120', automatic production such as forming and banding can be performed, and high precision and quality can be secured. It is possible to extend the beam to various lengths and to cross or extend the beams. Therefore, mass production can reduce the cost and greatly improve the workability in the field, thereby shortening the construction period and reducing the construction cost.

In addition, it is possible to fabricate various steel structures used in a building structure of a regular or irregular shape by using the built-up beam 100 as described above. Even when an irregular structure such as a cultural exhibition facility is to be constructed, It is possible to construct a long span structure having a length of 100 m or more so that it is very suitable for the construction of large and very large structures that can utilize the whole internal space as an available area.

Also, in the construction of the hood steel structure for reducing the pressure in the microwave oven, which is a facility for reducing the radiation phenomenon of explosion (explosion sound) generated when the high-speed train exits from the tunnel outlet using the built-up beam 100 It is very ideal.

In other words, the above-mentioned micro-pressure wave (called Sonic boom in Europe and USA) generates a pressure wave when the high-speed train enters the tunnel and propagates at a sonic speed toward the end of the tunnel, In the form of a tunnel, and it is felt that there is a severe low-frequency vibration along with the environmental noise of the explosion sound in a private house near the tunnel.

For this reason, it is common to provide the hood for reducing microwave pressure waves as described above, which is installed in the near-end. The hood is usually realized by installing a steel frame structure and attaching a finishing panel using the steel frame structure. Up beam 100 according to the present invention, the secondary moment of inertia and the moment of polar moment of inertia are improved, so that the performance enhancement and the bonding performance with the hood finishing material are improved The improvement of the workability, the reduction of the construction cost and the shortening of the construction period will be possible.

Next, a method of fabricating the built-up beam will be described in detail with reference to the sequential steps of FIG.

First, in order to fabricate the built-up beam of the present invention, the curved side structure bars 110 and 110 ', the steel structure reinforcing bars 120 and 120', the performance reinforcing round bars 130 and 130 ' The reinforcing stiffeners 140 and 140 'can be manufactured in large quantities in advance, and then they can be individually placed and welded to be mass-produced in a factory or in the field.

That is, in the case of the curved side structure bars 110 and 110 ', the galvanized steel sheet or the hot-rolled steel sheet is produced in a curved shape with a certain length by using a forming machine or a banding machine, and the steel structure reinforcing bars 120 and 120' ) Of the curved side structure bars 110 and 110 'are manufactured in the same mass as the lengths of the curved side structure bars 110' and 110 'by using a galvanized steel sheet or a hot rolled steel sheet. In the case of the performance reinforcing round bars 130 and 130' Shaped stiffeners 140 and 140 'can be cut and manufactured to have the same length, and the stiffeners 140 and 140' are manufactured in a large quantity in advance through the press cutting operation.

One of the steel structure reinforcing bars 120 and 120 'is placed on the bottom portion using a separate jig or the like and one curved side structure bar 110 and 110' (120) and (120 ').

Also, in the first laying process, one performance reinforcing round bar 130 (130 ') is provided between the ends of the lower steel structure reinforcing bars 120 (120') and the curved side structure bars 110 (110 ' And the reinforcing bars 120 and 120 'and the reinforcing round bars 130 and 130' are laid on the curved side structure bars 110 and 110 ' The curved side structure bars 110 and 110 'and the steel structure reinforcing bars 120 and 120' and the performance reinforcing round bars 130 and 130 'are simultaneously welded along the reinforcing round bars 130 and 130' The first welding process is performed.

In this state, the structural reinforcing stiffeners 140 and 140 'are set up to be spaced apart from the inner side of the curved side structure bars 110' and 110 'and the inner side of the steel structure reinforcing bars 120 and 120' The stiffeners 140 and 140 'can arbitrarily adjust the number and pitch of the stiffeners 140' for the purpose of increasing or decreasing the physical strength of the built-up beam. The thickness of the reinforcing stiffeners 140 and 140 'may also be varied.

When the stiffeners 140 and 140 'are folded, the curved side structure bars 110 and 110' and the reinforcing steel frame structure 140 'along the edges of the stiffeners 140 and 140' And a second welding process in which the bars 120 and 120 'are welded and fixed.

After the structural reinforcing stiffeners 140 and 140 'are fixed, the remaining curved side structural beams 110 and 110' are installed upright. At the same time, the second performance reinforcing round bar 130 is installed, And a third welding process in which the first and the second reinforcing bars 130 and 130 'are placed on the lower steel structure reinforcing bars and the structural reinforcing stiffeners, respectively.

When the third welding process is completed, the fourth performance enhancing round bar and the fourth performance enhancing round bar are placed on the structural reinforcing stiffener, and the upper steel structure reinforcing bar is also placed thereon. The rigid built-up beam of the present invention can be completed by carrying out a fourth welding process of transferring the entire divided welding objects to the automatic welding machine and welding them at the same time.

At this time, when performing the fourth laying process and the fourth welding process, as shown in FIG. 5, both sides of the upper and lower curved side structure bars 110 and 110 ' The reinforcing bars 120 and 120 'have longitudinally opposite ends formed with predetermined intervals or gaps. The performance enhancing round bars 130 and 130', which are exposed through the gaps or gaps, The beam welds 150 and 150 'are formed along the longitudinal direction of the built-up beam.

Therefore, the beam welds 150 and 150 'are not interfering protrusions that protrude prominently from the body of the built-up beam, but are formed by the curved side structure bars 110 and 110' and the steel structure reinforcing bars 120 and 120 ' Reinforced round bars 130 and 130 'at the same time, and is formed by using a gap. Therefore, each of the divided objects can be integrally connected and fixed It is possible to faithfully carry out the role of

The rigid built-up beam of the present invention made in this way improves the secondary moment of inertia and the moment of polar moment of inertia, thereby exhibiting excellent performance reinforcing effect, and contributes greatly to improvement of workability, reduction of construction cost, and shortening of construction period.

Therefore, the rigid built-up beam of the present invention can be used as a steel structure of various construction structures of a regular or irregular shape, and can be used as a frame of a high-speed railway micro-pressure wave reduction hood or a culture exhibition facility, The beams 100 and 100 'may be connected in the cross direction or extended in the longitudinal direction so that they can be more easily used in the field.

Here, in the present invention, in the state in which the ends of the built-in beams 100 100 'are reinforced when they are connected to each other in the cross direction or in the longitudinal direction of the built-up beams 100' As the interconnections and extensions are made, the connecting and extending parts complement the weak points to complete the steel structure with more physical stiffness, as well as the built-up beam itself, as well as the buffering action at the connection or extension So that cracks and clearances can be effectively suppressed.

6 to 9, the second built-up beam 100b in the cross direction with respect to the first built-up beam 100a, as shown in FIGS. 6 to 9, And the third built-up beam 100c are connected and fixed to each other, and they are connected to the built-up beams 100 and 100 'through the connection plates 101 and 101' (200) and (200 ').

In other words, when it is desired to connect and fix another built-up beam in the cross direction to the middle portion of the desired first built-up beam 100a, the connecting plate 101 is provided on both sides of the objective portion of the first built-up beam 100a, (101 ') is welded and fixed.

In this case, through holes (not shown) are formed in the connection plates 101 and 101 ', and the welding positions of the connection plates 101 and 101' The structure reinforcing stiffeners 140 and 140 'corresponding to the outer surfaces of the curved side structure bars 110 and 110' of the built-up beams 100 and 100a and more preferably the structural reinforcing stiffeners 140 and 140 ' It may be ideal to fix the connecting plates 101, 101 'on the outer surface of the corresponding built-up beams 100, 100'.

When the connection plates 101 and 101 'are fixed at the positions where the structural reinforcing stiffeners 140 and 140' are installed, the structural reinforcing stiffeners 140 and 140 ' Since the first and second built-in beams 101 and 101 'have a continuous cross-sectional shape, a stronger supporting force can be obtained, The effect of improving the stress is produced.

As described above, the second built-up beam 100b and the third built-up beam 100c are projected to the opposite side surfaces of the first built-up beam 100a having the connecting plates 101 and 101 ' The reinforcing connectors 200 and 200 'are fixed to the connection ends of the second built-up beam 100b and the third built-up beam 100c to form the second built-up beam 100b and the third built- So that the structure can be reinforced with respect to the end of the up beam 100c and an easy connection with the first built-up beam 100a can be achieved.

That is, the reinforcing connectors 200 and 200 'are composed of a finishing plate 201 that is closely attached to the ends of the second built-up beam 100b and the third built-up beam 100c, and the finishing plate 201 A connecting plate 101 'formed on the first built-up beam 100a and a reinforcing protruding end 203 hinged to the first mounting beam 100a are formed on one side of the second mounting beam 100a, The reinforcing insertion end 204 is formed to be inserted into the end of the built-up beam 100b and the third built-up beam 100c.

In this case, the reinforcing projecting end portion 203 is formed with a rotation fitting groove 202 into which the connection plate 101 'is inserted so that the connection plate 101 is inserted into the rotation fitting groove 202, The reinforcing connectors 200 and 200 'can be coupled in a rotatable manner from the connecting plates 101 and 101' when they are coupled to each other by the hinge shaft.

The reinforcing insertion end 204 formed on the finishing plate 201 is inserted into the ends of the second built-up beam 100b and the third built-up beam 100c as described above, and the second built- The structural reinforcing stiffeners 140 and 140 'having the depth corresponding to the length of the reinforcing insertion end 204 are inserted and fixed in the ends of the beam 100b and the third built-up beam 100c So as to be brought into close contact with the end of the reinforcing insertion end portion 204 and the side surfaces of the structural reinforcing stiffeners 140 and 140 '.

In this state, when the finishing plate 201 is welded firmly to the ends of the second built-up beam 100b and the third built-up beam 100c, the second built-up beam 100b and the third built- The upper beam 100c is mounted on the reinforcing connectors 200 and 200 'with the ends thereof reinforced. The reinforcing connectors 200 and 200' are connected to the connecting plate 200a of the first built- (100 ') hinge together with the reinforcing beams (101) and (101') to form a reinforcing end for each end as well as for connection in the crossing direction.

When the second built-up beam 100b and the third built-up beam 100c are connected to each other in the cross direction with respect to the first built-up beam 100a, the connecting plate 101 (101 The second built-up beam 100b and the third built-up beam 100c are rotatable in the upward and downward directions due to the hinged reinforced connectors 200 and 200 ' It is more convenient and easy to construct and construct the steel frame structure when the assembly facility or the irregularly shaped steel structure is to be constructed. Since the end portion is reinforced for each built-up beam, it is possible to more do.

Also, in the connection system for connecting the built-up beams 100 and 100 'in the cross direction as described above, the two built-up beams are not connected in the cross direction with respect to one built- It may be possible to cut each built-up beam with respect to the intersection of the up beams and then connect them together.

11, each of the built-up beams 100 and 100 'is divided at a crossing point by cutting, and one built-up beam 100' is provided with a reinforcing joint plate 102, The reinforcing joints 200 and 200 'are welded and fixed to another divided built-up beams 100 and 100', respectively, so that the reinforcing joints 200 and 200 ' Up beam 100 (100 ') is hinged to both sides of the reinforcing joint plate 102 of a single entity as well as the cross-directional connection of the respective built-up beams 100 (100' So that the response force against the physical force acting in the lateral direction can be further improved.

In addition, it is possible to overcome the disadvantage that the cross-directional connection can be limited only to the position where the structural stiffeners 140 and 140 'are located as in the previous embodiment, It is possible to construct a finer and more precise steel structure, so that a more complete structure can be constructed.

Next, the built-up beams 100 and 100 'of the present invention are manufactured by individually manufacturing each divided object and then fixing them together by welding, and it is impossible to manufacture the built-up beams 100 and 100' over a certain length .

Therefore, since the built-up beams 100 and 100 'of the present invention need to be extended in the longitudinal direction, it is possible to prevent the built-up beams 100 and 100' So that durable durability and rigidity are produced.

12 to 16, the end reinforcement members 310 and 310 'are inserted and fixed to the inside ends of the respective built-up beams 100 and 100' to be extended in the longitudinal direction, Up end beams 310 and 310 'of the present invention are tightly fixed to each other by using reinforcing extensions 300 and 300' An infinite extension in the longitudinal direction can be achieved.

That is, the end reinforcing members 310 and 310 'have the same outer shape as that of the built-up reinforcing stiffeners 140 and 140', which coincides with the internal cross-sectional shape of the built-up beams 100 and 100 ' And the first end supporting steel plate 311 and the second end supporting steel plate 312 which are spaced apart from each other are connected to the reinforcing supporting plate 313 and the first end supporting steel plate 311 and the second end supporting steel plate 312, The first end plate steel plate 311, the second end plate steel plate 312 and the reinforcement support plate 313 are firmly integrated with each other by welding. The first end plate steel plate 311, 311 serve as end finishing plates and end connecting plates of the built-up beams 100, 100 'to be extended so as to exactly match the ends of the built-up beams 100, 100'.

The end reinforcing members 310 and 310 'reinforce the end structures of the built-up beams 100 and 100', which are physical weak points, from the concentrated stress acting on the end connecting points, It is possible to overcome the fragile breakage occurring at the end of the up beams 100 and 100 ', and at the same time to suppress deformation and noise generation.

The reinforcing extensions 300 and 300 ', which are longitudinal connecting members to the built-up beams 100 and 100' having the end reinforcing members 310 and 310 ', are formed with a plurality of fastening holes 301, A reinforcing core 303 and reinforcing ribs 304 and 304 'are formed on one side of the fastening plate 302. The reinforcing ribs 304 and 304' The end reinforcing members 310 and 310 'are welded and fixed to the end reinforcing members 310 and 310' of the built-up beams 100 and 100 ' So that the longitudinal extension of the beams 100 and 100 'can be performed.

That is, as described above, the reinforcing extensions 300 and 300 'are formed by welding a reinforcing core member 303, which is a circular ring, at a central portion of one side of the fastening plate 302, The reinforcing ribs 304 and 304 'are radially welded radially using the outer surface of the fastening plate 302 and the outer surface of the fastening plate 302. The reinforcing ribs 304 and 304' 301 are positioned between the reinforcing ribs 304, 304 '.

The reinforcing ribs 304 and 304 'are outwardly directed with the reinforcing core members 303 and the reinforcing ribs 304 and 304' with the pair of reinforcing extenders 300 and 300 ' And the fastening plates 302 are tightly fixed to each other by bolts and nuts through the fastening holes 301 that are in close contact with each other.

Each of the reinforcing core members 303 and the reinforcing ribs 304 and 304 'which are directed toward the outer sides are provided with an end reinforcing member 310 And the welded ends of the built-up beams 100 and 100 'to be extended are welded to the first end supporting steel plate 311 of the connecting end portions 310' It can be fixed.

Therefore, by using the built-up beams 100 and 100 'in the extended state as described above, it is possible to construct a steel structure such as a culture exhibit meeting facility having a long span structure due to the realization of a light weight as well as a large- And the cross direction connection and the extension in the longitudinal direction lead to a feature applicable to both the steel structure of a building structure of a regular or irregular shape.

In particular, the built-up beam of the present invention can be used to construct various types of steel frame structures on the spot by using lightweight and reinforced structure in the construction of the hood for reducing the tunnel pressure of the high speed railway as shown in Fig. The buffering effect of the built-up beam itself from the shock due to the noise or pressure generated at the moment when the high-speed railway quickly escapes the tunnel, and the flowability at the crossing portion and the reinforcement of the end portion at the crossing portion and the straight portion, Can be restrained from flowing, and it is possible to significantly extend the service life due to noise reduction as well as improvement in durability.

18, the rigid built-up beam of the present invention having a hollow structure will have its own noise reduction effect, and the galvanized steel sheet It is very effective to maintain and manage the facility because it does not cause corrosion or rust. It is possible to make the long span structure by maximizing the bending moment and tensile shear force due to the structural reinforcement due to the steel plate forming, Therefore, various types of building structures including large structures can be constructed.

In addition, it can be used as a steel structure such as an athletic facility or various indoor gymnasiums as shown in FIG. 19, or an enclosed or open type facility, and can freely adjust the length of a rigid built-up beam and connect and extend the irregular structure quickly and efficiently Make it possible to construct.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the present invention as defined by the appended claims. Examples should be understood.

100, 100 ': built-up beam 101, 101'
102: Reinforced joint plate
110,110 ': Curved side structure bar
120, 120 ': steel structure reinforcing bar 121, 121': reinforcing groove
130,130 ': Performance Rounding Bar
140, 140 ': Structure reinforcing stiffener 141, 141': Fitting groove
142,142 ': Round bar avoidance groove
150, 150 ': beam weld
200,200 ': Reinforcing connector 201: Finishing plate
202: rotation fitting groove 203: reinforcing projection end
204: reinforcement insertion end
300,300 ': reinforcement extension 301: fastener
302: fastening plate 303: reinforced core
304, 304 ': reinforcing rib
310, 310 ': end reinforcing member 311: first end supporting steel plate
312: Second-end supporting steel plate 313: Stiffening support plate

Claims (16)

In a known rigid built-up beam having a tubular shape with both side portions formed along the longitudinal direction with an outward convex curved surface and upper and lower portions having inwardly curved reinforcing groove portions,
Upper and lower portions of the built-up beam 100 are divided into curved side structure bars 110 and 110 'and steel structure reinforcing bars 120 and 120' (130) and (130 ') in the longitudinal direction,
Reinforced stiffener 140 (see FIG. 1) having the round bars avoiding grooves 142 and 142 'interfering with the performance enhancing round bars 130 and 130' is provided in the built-up beam 100 140 'are tightly fixed to the curved side structure bars 110, 110' and the steel structure reinforcing bars 120, 120 '
The performance reinforcing round bars 130 and 130 'exposed between the longitudinal ends of the curved side structure bars 110 and 110' and the longitudinal ends of the steel structure reinforcing bars 120 and 120 ' And a beam welded part 150 'for connecting and fixing the beam welded parts 150 and 150' at the same time is formed on the outer surface of the rigid built-up steel plate.
Curved Side Structure Bar with Bending-Formed Steel Plate After reinforcing steel bars and reinforced steel bars, steel reinforced round bars and steel reinforced stiffeners were fabricated,
A lower steel structure reinforcing bar is placed on a bottom portion of the steel structure reinforcing bar and a side curved side structure bar is installed on one side of the steel structure reinforcing bar and a first performance reinforcing round bar is placed between the lower steel structure reinforcing bar and the one side curved side structure bar 1 Facing process;
A first welding step of welding the lower steel structure reinforcing bar, the one side curved side structure bar and the first performance enhancing round bar by the first laying process;
A second laying step of erecting and installing a structural reinforcing stiffener on the inside of the lower steel structure reinforcing bar and the one curved side structure bar at regular intervals;
A second welding process for welding and fixing the structural reinforcing stiffener to the lower steel structure reinforcing bar and the one curved side structure bar;
A third laying process for laying the other side curved side structure bar and the second performance reinforcing round bar on one side of the lower steel structure reinforcing bar and the structure reinforcing stiffener;
A third welding step of welding the other curved side structure bar and the second performance reinforcing round bar to each other by welding the structural reinforcing stiffener and the lower steel structure reinforcing bar to each other;
A fourth laying process for placing the upper and lower steel structure reinforcing bars for the third and fourth performance reinforcing round bars on both the curved side structure bars and the structural reinforcing stiffener;
And a fourth welding step of simultaneously welding the reinforcing round bars exposed between the opposite ends between the upper and lower steel structure reinforcing bar and the curved side structure bars and the inner performance reinforcing round bars exposed between the opposite ends simultaneously through the automatic welding machine. A method of manufacturing a rigid built-up beam using a bending-molded steel plate.
A method for connecting a second built-up beam and a third built-up beam in a cross direction with respect to a side of a first built-up beam produced by the manufacturing method of claim 2, Up beam and the third built-up beam are coupled to each other by means of a hinge connection between the connecting plate and the reinforcing connecting member to form the first and second built-up beams, 2 hinge connection of the built-up beam and the third built-up beam,
Wherein the connecting plate is welded to a position corresponding to a structural reinforcing stiffener positioned inside the first built-up beam,
The reinforcing connector has a reinforcing protrusion end portion formed with a rotational fitting groove for inserting the connecting plate at one side of the finishing plate and inserted into the second built-up beam and the third built-up beam at the other side of the finishing plate A reinforcing insertion end is formed to be protruded,
And a structural reinforcing stiffener which is in close contact with an end of the reinforcing insertion end is further inserted and fixed inside the end of the second built-up beam and the third built-up beam. End - stiffened cross - connect system.
Up beam and a third built-up beam in the cross direction with respect to the side of the first built-up beam made by the manufacturing method of claim 2, wherein the first built- The first and second built-up beams are welded and fixed to reinforced joint plates on both sides of which connecting plates are protruded, and the connection side ends of the second built-up beam and the third built- A plurality of reinforcing connectors are coupled to each other to form a crossing connection between the built-up beams by hinge coupling between the connecting plates and the reinforcing connector,
The reinforcing connector has a reinforcing protrusion end portion formed with a rotational fitting groove for inserting the connecting plate at one side of the finishing plate and inserted into the second built-up beam and the third built-up beam at the other side of the finishing plate A reinforcing insertion end is formed to be protruded,
And a structural reinforcing stiffener which is in close contact with an end of the reinforcing insertion end is further inserted and fixed inside the end of the second built-up beam and the third built-up beam. End - stiffened cross - connect system.
A method of manufacturing a built-up beam according to claim 2, wherein the built-up beam is formed in a longitudinal direction by inserting an end reinforcement member inside the opposite end of each built-up beam to be connected, And the reinforcement extending portions are bolt-fastened to each other, wherein the reinforcement extending portions are formed in the end-
Wherein the end reinforcement member comprises a first end plate steel plate and a second end plate steel plate having an outer shape conforming to the internal cross-sectional shape of the built-up beam, and the first end plate steel plate and the second end plate steel plate are spaced apart from each other And are connected to each other by a reinforcing support plate between them,
Wherein the reinforcing extension is formed by a fastening plate having fastening holes, a reinforcing core is fixed to a center of one side of the fastening plate, and a reinforcing rib is formed radially by using the external surface of the reinforcing core and one side of the fastening plate. Reinforced longitudinal connection system of a rigid built-up beam using a bend-molded steel plate. delete delete delete delete delete delete delete delete delete delete delete

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