KR101491212B1 - The extension of the trussed structure building roof and adding method - Google Patents

Abstract

The present invention relates to a method for increasing the height of a roof of a truss structure, and more particularly, to a method for increasing the height of a truss structure by installing a jack-up system around a building column to raise a truss of the building roof, The present invention relates to a truss structure and a method of increasing and increasing a roof of a building.
The object of the present invention is to support a truss of a building roof through a supporting member instead of fixing one side of the column and elevating and raising the roof of the large building by using a jack-up device.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a truss structure,

The present invention relates to a method for increasing the height of a roof of a truss structure, and more particularly, to a method for increasing the height of a truss structure by installing a jack-up system around a building column to raise a truss of the building roof, The present invention relates to a truss structure and a method of increasing and increasing a roof of a building.

In recent years, buildings using steel beam and truss have been widely used in steel buildings. These steel buildings are usually constructed of pillars, beams, roofs, exterior walls and exterior materials, and the height and floor required for the initial construction are established. After completion, the height of the building or the number of floors is increased, The building is demolished and reconstructed to expand the desired height and number of floors.

Korean Patent No. 10-0454956 discloses a hydraulic cylinder fixing method comprising the steps of installing a horizontal and vertical balancing gauze on both poles, fixing a hydraulic cylinder at the end of the piston rod of the hydraulic cylinders on one side of the poles, A piston-base separating step of separating the base of the piston and a piston-rod separating step of separating the piston-rod and the piston-rod from each other when the piston rod is lifted by operating the hydraulic cylinder, The rising distance of each piston rod is measured in real time. When the rising distance of each piston rod is different from each other, the operation of each hydraulic cylinder is stopped, and then the hydraulic cylinder having the piston rod having a different rising distance is operated Each of the columns is elevated while correcting the rising distance by the rising distance of the other piston rod A reinforcing steel member fixing step of inserting and inserting a reinforcing steel member between the rising step and the separated foundation of each raised column and the ground, and a step of installing a facing material on the outer side of each reinforcing steel member, And a method for increasing the number of steel-framed buildings.

In this method, one end of the piston rod is fixedly coupled to one side of the column to elevate the column itself. However, when such a method is adopted, the column is inclined in one direction due to the height difference between the columns, There arises a problem that buckling may occur and the construction itself becomes difficult.

In addition, the above-mentioned conventional method has a structure in which a horizontal and vertical balance force is provided between a column and a column to prevent deformation occurring in the column itself when the column is raised upward. There is a problem in the building that is difficult to apply.

Also, in the above-mentioned conventional method, the side supporting the column of the building is on one side of the column, and thus there is a reinforcement relation and a structural problem in order to increase and enlarge the roof of the large building.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a truss structure for a truss structure in which a truss of a building roof to which a load is directly transmitted is supported through a support member, To elevate and enlarge the roof of a large building.

In order to accomplish the above object, the present invention provides a truss structure to be installed on a roof of a truss structure, comprising a support member for supporting the truss, a piston rod, and a jack-up cylinder S1; A step S2 of connecting the flow rate feeder to the jack-up cylinder after step S1 and increasing a certain amount of pressure to the jack-up cylinder so as to bring the jack-up device into close contact with the truss of the building roof; (S3) of disassembling the anchor bolt located at the connecting portion of the column and lifting the upper portion of the column to separate the upper portion and the lower portion of the column; Up the truss by lowering the piston rod by a predetermined step distance by operating the plurality of jack-up devices after step S3; After the step S4, if the piston rod reaches the set step distance, the remaining piston rod automatically stops until it reaches the set step distance. If the piston rod of the entire jack-up device reaches the set step distance, step S5 of outputting an ok sign and raising each of the trusses by repeating a stepwise rise until reaching a final upward stroke; After step S5, the liner block is fastened to the lower space of the upper support raised by the length of the stroke, the piston rod is raised, and then the jack support beam is installed in the space where the piston rod is raised. The steps S4 to S6 are repeated to raise the building roof to a desired height. Thereafter, the operation of the jack-up device is stopped and a reinforcing member for connecting the upper portion and the lower portion of the column is inserted and fixed. The present invention provides a truss structure roof elevation method and a truss building method.

In addition, in the step S1, the supporting member may be configured to surround the truss structure without being fixed.

In addition, the jack-up device in the step S1 further includes an emergency valve for preventing a sudden drop of the jack-up cylinder upon breakage of the piping.

The jack-up device further includes a stroke sensor and a pressure sensor for controlling the position and the pressure of the piston rod.

In addition, in step S3, the upper part of the column is lifted by 1 to 2 mm.

Further, the step distance in step S3 is 1 to 4 mm.

Also. In the step S4, the stroke is 200 to 300 mm.

The controller may further include a controller for determining whether the piston rod is lowered by a step distance in step S5 and displaying an operation state and a pressure value of each of the jack-up cylinders.

In addition, when strong winds are generated in the steps S4 to S6, the operation is stopped and a horizontal support member and a vertical support member are installed in a support structure located around the column.

In addition, when the liner block is installed in the step S6, the block guide supports the liner block and is strong against the horizontal force.

When the jack-up device is brought into close contact with the truss of the building roof by increasing a certain amount of pressure to the jack-up cylinder in the step S2, the reaction force value of each truss is calculated by the structural calculation, And a liner plate is attached to the pores formed by the adhesion, thereby securing the flatness.

The truss structure of the present invention is effective for increasing and enlarging the truss structure and the large building in the case of the roof elevation and expansion method of the truss structure and has a simpler structure than the conventional method.

In addition, a jack-up device is provided on both sides of the column to support the truss of the column, so that the column is prevented from tilting or buckling during the thickening and enlarging of the roof, thereby ensuring safety in construction.

In addition, since the load that can be increased and enlarged is larger than that of the conventional method of fixing to the one side of the column, the bottom slab can not receive the load during jack-up when the vertical material for jack- In this case, the vertical structure can be stably installed at the top of the pillars.

In addition, regardless of the length of the jack-up cylinder, there is no restriction on the lifting distance in the upward direction of the roof, and the utilization according to the situation is high, which is economically advantageous.

In addition, stability is high even when an additional load is applied due to twisting of the building itself during typhoon or other installation at the time of upward.

In addition, when the block guide is supported by the bolts, the liner block is fixed with a bolt, and when the block guide is supported by the bolt, the liner block is transmitted to the lower vent when the horizontal force is increased.

FIG. 1 is a flowchart showing a procedure for increasing and increasing a truss structure building roof according to an embodiment of the present invention.
2 is an installation cross-sectional view of a jack-up device provided around the pillar of the present invention.
3 is a top cross-sectional view of the jack-up device according to the present invention.
Fig. 4 is a schematic view of a jack-up system for the elevation and elevation of a truss structure building roof according to the present invention.
5 to 8 are side views showing the process of increasing and increasing the truss structure building roof through a jack-up device.
Fig. 9 is a view showing the fixed structure of the support structure of the jack-up device according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a method of increasing and increasing a truss structure building roof according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sequence flow chart illustrating the method of increasing and increasing the truss structure building roof according to the present invention; FIG. A truss structure to be thickened and strengthened, a supporting member for supporting a truss around a column of a building roof, and a jack-up cylinder including a jack-up cylinder having a piston rod.

The support member is characterized in that it surrounds the truss structure without being fixed in a fixed manner. In general, the U-shaped structure is used in many cases, but any shape can be used as long as it has a structure that surrounds the truss structure. The support member is only in surface contact with the roof structure (truss) without being engaged with the roof structure, and is kept slip and rotatable with the roof structure. And the lower portion of the support member may be fixedly coupled to the liner plate as the case may be.

In addition, the jack-up device further includes an emergency valve for preventing rapid rise and fall of the jack-up cylinder at the time of piping failure, and further includes a stroke sensor and a pressure sensor for controlling the position and pressure of the piston rod.

The lower part of the jack-up device is provided with a support structure. The supporting structure is provided with a supporting structure on the upper part of the slab (ground), and when the ground is inclined at a certain angle, the non-shrinkage concrete is laid so as to maintain the horizontal, So as to fix the support structure. In addition, even when the slab is not crossed, a part of the slab is dug and the shrinkage concrete is poured to a certain depth to maintain the horizontal, and then the support structure is fixed in the shrinkage concrete using the anchor bolt, .

After the step S1, a flow rate feeder is connected to the jack-up cylinder, and a certain amount of pressure is increased to the jack-up cylinder so as to bring the jack-up device into close contact with the truss of the building roof. In this step, the pressure increase and tightness are applied to each of the jack-up cylinders because the truss is supported to separate the upper and lower parts of the column.

Generally, a pressure of 5 to 10 tons may be added, and a certain amount of pressure may be given differently for each of the jack-up cylinders by calculating the reaction force value of each truss to be described later.

Also, since the heights of the building roofs differ in displacement due to point settlement, installation error, or hanging load, an initial setting step is required to ensure initial flatness when the truss is closely contacted with a jack-up device. The reaction force values of each of the jack-up devices are calculated by structural calculation, and the load corresponding to the reaction force value is applied by a jack-up cylinder, and a liner plate is attached to the gap formed in the close contact to secure the flatness.

After step S2, the anchor bolt located at the connecting portion of the column is dismantled, and the upper part of the column is lifted by 1 to 2 mm to perform the S3 step of separating the upper part and the lower part of the column. At this time, if the column is an integral column that is not composed of the upper part and the lower part, the part connected to the slab is separated.

After step S3, the plurality of jack-up devices are operated to lower the piston rods by a predetermined step distance, thereby performing step S4 of raising each of the trusses. The jack-up device receives hydraulic pressure from the flow rate feeder to lower the piston rod.

After the step S4, when the piston rod reaches the set step distance, the remaining piston rod automatically stops until it reaches the set step distance. When the piston rod of the entire jack-up device reaches the set step distance, Thereby securing the flatness and outputting an ok sign, and at the same time, repeating steps S5 to repeatedly raise the respective trusses until reaching the stroke, which is the final rising height of the piston rod.

The stroke, which is the final rising height of the piston rod, is generally 200 to 300 mm. When the step distance is set to 1 to 4 mm, the column tilts in one direction or buckling occurs due to the height difference between the columns. Can be prevented.

For example, if the stroke of the piston rod is set to 250 mm and the step distance is set to 2 mm, the piston rod descends to reach the height of 2 mm first. Then, the piston rod automatically stops until the remaining piston rod reaches 2 mm height. When reaching the height of 2mm, the control part checks the OK sign and performs the above operation repeatedly, and it automatically repeats operation until reaching the final rising height of 250mm. During the descent of the piston rod, the minimum step can be set to 1 mm, and the step at the time of descent is 1 mm, but the step of the piston rods after the operation is completed is operated at 0 mm.

The control unit is connected to the stroke sensor and the pressure sensor for determining whether the piston rod is lowered by the step distance, and displays the operation state and the pressure value of the jack-up cylinder.

After step S5, the liner block is fastened to the lower space of the upper support raised by the stroke length, the piston rod is raised again, and then the jack support beam is installed in the space where the piston rod is raised.

If it is determined that the building roof has risen to a desired height and the desired height has not been reached, the steps S4 to S6 are repeated to raise the building roof to a desired height. If the building roof has been raised by a desired height, the operation of the jack-up device is stopped, and a reinforcing member for connecting the upper portion and the lower portion of the column is inserted and fixed, and step S7 for separating the jack-up device is performed.

Fig. 2 is an installation cross-sectional view of the jack-up device 100 installed around the pillar of the present invention.

There is a steel building with a lower part 2 of the column disposed in the slab 1, an upper part 3 of the column, and a truss 4 disposed on one side of the upper part 3 of the column.

The support structure includes a lower pedestal 10, a first screw jack 11, a vertical pedestal 12, a screw jack bracket 13, a second screw jack 14, a horizontal pedestal 15, an upper pedestal 16, And a horizontal beam 17.

And a lower pedestal 10 disposed so as to abut the slab 1 in a horizontal direction at its lower portion, and has a structure for supporting the overall load. Two first screw jacks 11 are disposed at the upper part of the two lower pedestals 10 to adjust the height of the support structure and align the respective parallelism.

The first screw jack 11 supports the vertical pedestal 12 and the vertical pedestal 12 may be arranged to include a horizontal support member 29 and a vertical support member 30, respectively. The installation of the horizontal support member 29 and the vertical support member 30 increases the structural integrity.

Two vertical supports 12 arranged in the vertical direction support the screw jack support 13 and two second screw jacks 14 are arranged in the vertical direction in the screw jack support 13. [ The second screw jack 14 has the same function as the first screw jack 11.

The two second screw jacks 14 arranged in the transverse direction each support two horizontal pedestals 15. Four upper pedestals (16) are installed on the two horizontal pedestals (15) so as to be staggered in the 90 direction. The number of the upper pedestals can be changed depending on the type and the situation of the support structure, and in this embodiment, both sides are raised and lowered around the upper part 3 of the column.

The two upper pedestals 16 support two horizontal beams 17 so as to be staggered in the direction of 90 respectively and the two horizontal beams 17 again support one upper pedestal 19.

The upper end of the jack-up device is largely constituted by an upper support 19, a jack-up cylinder 20, a piston rod 21, a support member 22, a liner block 23 and a jack support beam 24.

A jack-up cylinder 20 and a piston rod 21 are disposed at the center of the upper support 19 and a block guide 18 is disposed at a position below the horizontal beam 17 in a downward direction. A support member 22 is arranged on the upper portion of the upper support 19 in a U-shape to support the truss 4.

The jack-up device 100 may further include an emergency valve (not shown) for preventing a sudden drop of the jack-up cylinder at the time of piping failure, and may further include a stroke sensor and a pressure sensor (not shown) for controlling the position of the piston rod It is possible.

The control unit may further include a controller for determining whether the piston rod 19 is lowered by a step distance and displaying the operating state and the pressure value of each of the jack-up cylinders 20.

3 is a cross-sectional view of an upper end 110 of the jack-up device according to the present invention.

3, a block guide 18 for guiding the up-stroke of the jack-up cylinder 20 is formed on both sides of the upper support 19. The jack-up cylinder 20 has a piston rod 21 extending downward And is fixedly coupled to the upper support 19 by a structure. On the other hand, on the upper side of the upper support 19, a support member 22, which is not engaged with the truss 4 but is only in surface contact with the truss 4 and is kept slidable and rotatable with respect to the truss 4, As shown in Fig. In addition, a stroke sensor 25, which is a measuring means for measuring the rising distance of the roof structure in real time, is provided inside the jack-up cylinder 20 (shown as being provided at one side of the hydraulic cylinder in FIG. 3, When a predetermined pressure is applied to the jack-up cylinder 20, the piston rod 21 is extended downward, and the upper end of the piston rod 21, which is in contact with the upper pedestal 16, 16 as a result of which the roof structure is raised.

Fig. 4 is a schematic view of a jack-up system for the elevation and elevation of a truss structure building roof according to the present invention.

The configuration of the jack-up system is as follows. A plurality of jack-up devices (100) are disposed around pillars (100) for the purpose of enhancing and increasing the roof of a truss structure. The plurality of jack-up devices (100) are connected to a flow distributor (200) And a control unit 300 for controlling the apparatus. The number of the jack-up devices 100 may vary depending on the number of pillars of the building for the increase and increase.

As described above, the control unit 300 controls the scroll sensor to determine whether the jack-up device 100 is lowered by the step distance of the jack-up cylinder 100, and displays the pressure value of the jack-up cylinder , And controls the flow rate supply device 200 so that an appropriate hydraulic pressure can be distributed to the jack-up device 100. The control unit 300 confirms that each of the jack-up devices 100 operates properly, stops the entire operation when a problem occurs in each of the jack-up devices 100, and allows the system to operate again after the problem is solved.

5 to 8 are side views showing the process of increasing and increasing the truss structure building roof through a jack-up device.

5, when the piston rod 21 is lowered by a desired position by operating the jack-up cylinder 20, the piston rod 21 is brought into close contact with the upper pedestal 16 so that the upper pedestal 19 and the horizontal beam 17 ). At this time, it is checked whether the piston rod 21 is lowered to the same position in each of the jack-up devices. When the descending distance of the piston rod 21 is different, the entire operation of the jack-up device is stopped, and only the jack-up device having a different falling distance is operated to horizontally align the building roof. The above-described operation is performed by the control unit described above.

In the conventional method, one end of the piston rod is fixedly coupled to one side of the column to elevate the column itself. When such a method is employed, the column is inclined in one direction due to the height difference between the columns, And the difficulty of construction itself occurred.

However, according to the present invention, the support member 22 and the truss 4 are not fixedly coupled but merely support the support, so that it is possible to reduce the phenomenon that the column is inclined or buckled by the height difference of the respective columns .

Since the truss 4 and the supporting member 22 can slide relative to each other so that the central balance can be reconstructed as a whole even if a load is concentrated on one side or a column is inclined when the truss 4 is raised, The stability is corrected, and a separate process of joining the truss 4 and the support member 22 can be omitted, so that the ease of construction can be secured.

6 shows a configuration in which two liner blocks 23 are sandwiched in a space between the upper support 19 and the horizontal beam 17 described above. Two liner blocks 23 that are slightly shorter than the actual length of the piston rod 21 are inserted into the space between the upper end of the horizontal beam 17 and the upper support 19, (17). The liner block 23 can be fixedly positioned by the block guide 18 and the block guide 18 fixes the liner block 23 at the correct position, Without going to be able to go up straight.

Fig. 7 shows a state in which the piston rod 21 is retracted after the upper support 19 is supported by the liner block 23. As shown in Fig. In this state, the jack support beam 24 is inserted into the space where the load of the roof structure is supported by the liner block 23 and the horizontal beam 17 and the piston rod 21 is raised. The beam 24 and the horizontal beam 17 are bolted together.

8, when the piston rod 21 is lowered by a desired position by operating the jack-up cylinder 20 in the state of FIG. 7, the piston rod 21 is brought into close contact with the upper pedestal 16, When a space is formed again between the beams 17 and repeating the above-described FIGs. 5 to 7 in this state, the roof truss structure is increased by a desired distance as a result. A smaller jack support beam 24 may be fitted after the jack support beam 24 is fitted by the height of the horizontal beam 17 and the jack support beam 24 may be engaged with the liner block 23 by bolt- Respectively.

If the ground is not rigid or the ground level is not good when the support structure of the jack-up device is installed prior to the above-described overall process, as shown in FIG. 9, It is possible to precede the above-mentioned process of hardening or maintaining a horizontal position. The supporting structure is provided with a supporting structure on the upper part of the slab 1 and a non-shrinking concrete 29 is laid in order to maintain the horizontal when the ground is inclined at a certain angle, And the support structure is fixed by using anchor bolts (28) on the support structure (29). Also, even if the slabs can not be crossed, a part of the slab is dug and the shrink concrete 29 is poured to a predetermined depth to maintain the horizontal, and then the anchor bolt 28 is used to hold the shrink concrete 29 So that the jack-up device is held horizontally.

Although the embodiment of the present invention has been described with reference to a building having a truss structure, it is possible to increase and increase the size of the building by changing the shape of the support member even in a large building without a truss structure, It can be utilized for movement of

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

1: Slab 2: Lower part of the column
3: Top of column 4: Truss
10: lower pedestal 11: first screw jack
12: Vertical stand 13: Screw jack bracket
14: Second screw jack 15: Horizontal bracket
16: Upper pedestal 17: Horizontal beam
18: block guide 19: upper support
20: Jack-up cylinder 21: Piston rod
22: support member 23: liner block
24: Jack support beam 25: Stroke sensor
26: liner plate 27:
28: Anchor bolt 29: Shrinkage free concrete
30: horizontal support member 31: vertical support member
100: Jack-up device
110: upper end of the jack-up device
200: Flow feeder
300:

Claims (11)

A truss structure to be thickened and strengthened; a plurality of jack-up devices including a support member for supporting the truss around a column of a building roof, a jack-up cylinder having a piston rod, and a stroke sensor for controlling the position of the piston rod Installing S1;
A step S2 of connecting the flow rate feeder to the jack-up cylinder after step S1 and increasing a certain amount of pressure to the jack-up cylinder so as to bring the jack-up device into close contact with the truss of the building roof;
(S3) of disassembling the anchor bolt located at the connecting portion of the column and lifting the upper portion of the column to separate the upper portion and the lower portion of the column;
Up the truss by lowering the piston rod by a predetermined step distance by operating the plurality of jack-up devices after step S3;
After the step S4, if the piston rod reaches the set step distance, the remaining piston rod automatically stops until it reaches the set step distance. If the piston rod of the entire jack-up device reaches the set step distance, step S5 of outputting an ok sign and raising each of the trusses by repeating a stepwise rise until reaching a final upward stroke;
After step S5, step S6 of tightening the liner block in the lower space of the upper support raised by the stroke length, raising the piston rod, and then installing the jack support beam in the space where the piston rod is raised.
The steps S4 to S6 are repeated to raise the building roof to a desired height. Thereafter, the operation of the jack-up device is stopped and a reinforcing member for connecting the upper portion and the lower portion of the column is inserted and fixed. Wherein the truss structure comprises a plurality of truss structures. The method according to claim 1,
Wherein the support member in the step S1 surrounds the truss structure without fixing the support member. The method according to claim 1,
Wherein the jack-up device further comprises an emergency valve for preventing rapid rise and fall of the jack-up cylinder at the time of piping failure. delete The method according to claim 1,
Wherein the upper part of the column is lifted by 1 to 2 mm in step S3. The method according to claim 1,
Wherein the step distance in step S3 is 1 to 4 mm. The method according to claim 1,
Wherein the stroke is 200 to 300 mm in step S4. The method according to claim 1,
Further comprising a controller for determining whether the piston rod is lowered by a step distance in step S5 and for displaying an operating state and a pressure value of each of the jack-up cylinders. The method according to claim 1,
Wherein when the strong wind is generated in the steps S4 to S6, the operation is stopped, and a horizontal support member and a vertical support member are installed on a supporting structure located around the column. The method according to claim 1,
Wherein when the liner block is installed in step S6, the block guide supports the liner block and is strong against the horizontal force. The method according to claim 1,
When the jack-up device is brought into close contact with the truss of the building roof by increasing a certain amount of pressure to the jack-up cylinder in step S2, the reaction force value of each truss is calculated by structural calculation, And a liner plate is attached to the pores formed in the close contact to secure a flatness.

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