A steel structure of group space curved and twisted arc-shaped inclined columns and inclined beams and a pouring construction method

Abstract

The present invention discloses a group space curved and twisted arc-shaped inclined column and inclined beam steel structure and its jacking construction method. The whole is composed of inclined columns and inclined beams to form an annular steel structure. The steel structure adopts box-shaped inclined columns and box-shaped inclined beams, so as to facilitate the setting of longitudinal stiffening plates for inclined columns, transverse stiffening plates for inclined columns and longitudinal stiffening plates for inclined beams inside, thereby providing a reasonable structural layout for the overall jacking. At the higher end of the box-shaped inclined beam, there is an inclined beam observation, exhaust and grout replenishment hole communicated with the outside above the longitudinal stiffening plate of the inclined beam, which is used to observe whether the box-shaped inclined beam is completely filled with grout and also serves for exhaust and possible grout replenishment in the later stage. A construction method of jacking and pouring the box-shaped inclined columns and box-shaped inclined beams together as a whole is realized, which greatly saves the usage cycle, improves the construction efficiency, and has very good structural strength, and can meet the increasing needs of bearing capacity.

Description

Technical Field

[0001] The invention belongs to the field of steel structure buildings, and particularly relates to a group space bending and twisting arc-shaped inclined column and inclined beam steel structure and a casting construction method. Background Art

[0002] The construction of CFST columns is to slowly lift the concrete upward from the root of the steel column, and complete the smooth pouring of the concrete in the steel tube through special devices such as stop valves and pressure relief holes. During the construction process, the concrete in the column is subjected to the lifting pressure, which effectively removes the air in the steel column, improves the density of the concrete, and avoids defects such as insufficient density and segregation of the concrete under the partition.

[0003] The prior art can refer to the patent with announcement number CN114961264B, which discloses a steel tube concrete jacking device with a leak-proof structure, which is used to jack up and pour concrete in a circular tube to complete a high-strength steel tube concrete column. However, as the building volume becomes larger and larger, the required bearing capacity increases accordingly. The conventional steel tube jacking and pouring concrete structure and construction method are difficult to meet the strength requirements. In addition, cross beams are required to connect the steel tube concrete columns. The current practice is to jack up the steel tube concrete column, open a grouting hole on the top of the cross beam, and perform high-throw grouting. The construction period is long and the construction quality is difficult to guarantee. Summary of the invention

[0004] The present invention provides a group space twisted arc inclined column and inclined beam steel structure and a casting construction method, which are used to solve the technical problems mentioned in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a group space bending and twisting arc-shaped inclined column and inclined beam steel structure, comprising a plurality of ring-shaped box-shaped inclined columns and box-shaped inclined beams connected between adjacent box-shaped inclined columns, wherein the box-shaped inclined columns and the box-shaped inclined beams are both rectangular steel tubes, the box-shaped inclined columns are arranged obliquely in an annular plane, and the two ends of the box-shaped inclined beam have a height difference, the inner side of the box-shaped inclined column has a plurality of inclined column longitudinal stiffening plates along the length direction and a plurality of inclined column transverse stiffening plates along the cross-section, the inner side of the box-shaped inclined beam has a plurality of inclined beam longitudinal stiffening plates along the length direction, and the inclined column longitudinal stiffening plates correspond to each adjacent inclined column transverse stiffening plates. Transverse grouting holes are opened on the inclined columns, vertical grouting holes are opened on the transverse stiffening plates of the inclined columns, grouting holes are opened on the longitudinal stiffening plates of the inclined beams at intervals, column-beam grouting holes are opened on the outer walls of the box-shaped inclined columns and at positions corresponding to the inclined beams, a pump pipe is connected to the bottom end of the box-shaped inclined columns, and box-shaped crown beams located at the top ends of all the box-shaped inclined columns are arranged on the top ends of the box-shaped inclined columns, and inclined column crown beam grouting holes connected to the box-shaped columns are opened on the bottom ends of the box-shaped crown beams, and inclined column observation exhaust grouting holes connected to the outside are opened at intervals in the height direction on the outer walls of the box-shaped inclined columns, and inclined beam observation exhaust grouting holes connected to the outside are opened at a position above the longitudinal stiffening plate of the inclined beam at the higher end of the box-shaped inclined beam.

[0006] Preferably, two inclined column longitudinal stiffening plates are arranged in the box-shaped inclined columns, and one inclined beam longitudinal stiffening plate is arranged in the box-shaped inclined beam.

[0007] Preferably, the pump pipe includes an annular main pump pipe located outside the box-shaped inclined column and a branch pump pipe connected between the annular main pump pipe and the box-shaped inclined column, and the outer side of the annular main pump pipe is evenly connected to a plurality of concrete pump truck connecting pipes.

[0008] Preferably, a negative pressure pump hole is opened at the top end of the crown beam, and the negative pressure pump hole is connected to a negative pressure pump.

[0009] Preferably, the ring-shaped inclined box-shaped columns are shaped like a small waist with a narrow middle portion in the height direction.

[0010] Preferably, the inclined column observation grouting holes are arranged at intervals of 4m, the apertures of the inclined column transverse grouting holes, the inclined column vertical grouting holes and the inclined beam grouting holes are 150mm, and the apertures of the inclined column observation exhaust grouting holes and the inclined beam observation exhaust grouting holes are 5cm.

[0011] A casting construction method for a group space curved and twisted arc-shaped inclined column and inclined beam steel structure comprises the following steps:

[0012] Step 1: Make box-shaped inclined columns and box-shaped inclined beams. Set transverse grouting holes for inclined columns and vertical grouting holes for inclined columns on the longitudinal stiffening plates of the inclined columns and the transverse stiffening plates of the inclined columns respectively. Set grouting holes for inclined beams at intervals on the longitudinal stiffening plates of the inclined beams. According to the overall shape, set column-beam grouting holes on the outer wall of the box-shaped inclined columns. Set observation and exhaust grouting holes for inclined columns at intervals. A position of the higher end of the box-shaped inclined beam located above the longitudinal stiffening plates of the inclined beams is provided with an observation and exhaust grouting hole for inclined beams connected to the outside. Set grouting holes for inclined columns and crown beams on the corresponding parts of the box-shaped crown beams.

[0013] Step 2: hoist the box-shaped inclined columns in sections and hoist the box-shaped inclined beams between adjacent box-shaped inclined columns until the construction of all the box-shaped inclined columns and box-shaped inclined beams is completed;

[0014] Step 3: hoisting the box-shaped crown beam and negative pressure pump;

[0015] Step 4: Install the annular main pump pipe and branch pump pipe;

[0016] Step 5: Connect several concrete pump trucks to the annular main pump pipe;

[0017] Step 6: After turning on the negative pressure pump, start the grouting jacking work of the concrete pump truck, and at the same time observe and record the slurry discharge from the exhaust grouting hole on the inclined beam;

[0018] Step 7. After the overall jacking and pouring is completed, observe the exhaust grouting holes of the inclined beams where no grout has been poured out and carry out grouting.

[0019] The beneficial effects of the present invention are embodied in that the pumping jacking construction process is a concrete vibration-free construction method that utilizes the pumping pressure of a concrete delivery pump to pour self-compacting concrete from the bottom of a steel pipe column, flowing from bottom to top until the entire steel pipe column is filled, and does not intersect with or affect the steel structure construction.

[0020] Compared with the jacking casting of ordinary steel pipe columns, the grid steel structure of this project presents bending and torsion and an interwoven grid in space. The inclined column and inclined beam structure, coupled with the spatial bending and torsion and oblique setting, and the setting of oblique partitions inside the steel structure make its internal structure complex, making it difficult to ensure the casting quality.

[0021] In view of the increasing size of buildings and the increasing required bearing capacity, the present application proposes a group space bending and twisting arc inclined column and inclined beam steel structure and casting construction method, wherein: 1. The overall ring-shaped steel structure is composed of inclined columns and inclined beams; 2. The steel structure adopts box-shaped inclined columns and box-shaped inclined beams, so it is convenient to set the longitudinal stiffening plates of the inclined columns, the transverse stiffening plates of the inclined columns and the longitudinal stiffening plates of the inclined beams inside, thereby providing a reasonable structural layout for the overall jacking; 3. An inclined beam observation exhaust and grouting hole connected to the outside is opened at the position above the longitudinal stiffening plate of the inclined beam at the higher end of the box-shaped inclined beam to observe whether the box-shaped inclined beam is fully filled with grout and to exhaust and possible grouting in the later stage; 4. The overall ring-shaped main pump pipe and respective support pipes are adopted. Pump pipe to ensure the synchronous lifting of the whole, so that the whole can be constructed smoothly; 5. A negative pressure pump is arranged on the top to assist the lifting of the whole, so that the lifting of the whole can be relatively smooth, and the box-type inclined beam can be fully cast to a large extent, and only the box-type inclined beam with a steeper slope needs to be grouted in the later stage; 6. The inclination angle and direction of the box-type inclined column and the box-type inclined beam can be freely combined to construct a natural and aesthetic shape. Therefore, this application realizes a construction method in which the box-type inclined column and the box-type inclined beam are lifted and cast as a whole through the mutual cooperation and support of the technical solutions of points 1 to 6, which greatly saves the use cycle, improves the construction efficiency, and has very good structural strength to meet the increasing needs of bearing capacity.

[0022] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention; the main purpose and other advantages of the present invention may be realized and obtained through the solutions particularly pointed out in the description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0024] Figure 2 It is a node diagram of the entire embodiment of the present invention.

[0025] Figure numerals: 1. Box-type inclined column; 2. Box-type inclined beam; 3. Longitudinal stiffening plate of inclined column; 4. Transverse stiffening plate of inclined column; 5. Longitudinal stiffening plate of inclined beam; 6. Transverse grouting hole of inclined column; 7. Vertical grouting hole of inclined column; 8. Grouting hole of inclined beam; 9. Grouting hole of column and beam; 10. Pump pipe; 11. Box-type crown beam; 12. Vent and grouting hole for observation of inclined column; 13. Vent and grouting hole for observation of inclined beam; 14. Annular main pump pipe; 15. Branch pump pipe. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is described in detail below through examples. The following examples are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be interpreted as limiting the technical solution of the present invention.

[0027] Combination Figure 1 and Figure 2 A group space bending and twisting arc-shaped inclined column and inclined beam steel structure, comprising a plurality of ring-shaped box-shaped inclined columns 1 and box-shaped inclined beams 2 connected between adjacent box-shaped inclined columns 1, wherein the box-shaped inclined columns 1 and the box-shaped inclined beams 2 are both rectangular steel tubes, the box-shaped inclined columns 1 are arranged obliquely in an annular plane, and the two ends of the box-shaped inclined beams 2 have a height difference, the inner side of the box-shaped inclined column 1 has a plurality of inclined column longitudinal stiffening plates 3 along the length direction and a plurality of inclined column transverse stiffening plates 4 along the cross-section, the inner side of the box-shaped inclined beam 2 has a plurality of inclined beam longitudinal stiffening plates 5 along the length direction, and an inclined column transverse slurry hole 6 is opened on the inclined column longitudinal stiffening plate 3 corresponding to each adjacent inclined column transverse stiffening plate 4, and the inclined column transverse stiffening plate 4 is provided with a plurality of inclined column longitudinal stiffening plates 5 along the length direction. The stiffening plate 4 is provided with vertical slurry holes 7 for inclined columns, the longitudinal stiffening plates 3 for inclined beams are spaced apart with slurry holes 8 for inclined beams, the outer wall of the box-shaped inclined column 1 and the corresponding parts of the inclined beam are provided with column-beam slurry holes 9, the bottom end of the box-shaped inclined column 1 is connected with a pump pipe 10, and the top ends of several box-shaped inclined columns 1 are provided with box-shaped crown beams 11 located at the top ends of all box-shaped inclined columns 1, and the bottom ends of the box-shaped crown beams 11 are provided with inclined column crown beam slurry holes connected with the box-shaped columns, the outer walls of the box-shaped inclined columns 1 are spaced apart in the height direction with inclined column observation exhaust grouting holes 12 connected with the outside, and the higher end of the box-shaped inclined beam 2 is provided with an inclined beam observation exhaust grouting hole 13 connected with the outside at a position above the longitudinal stiffening plates 3 of the inclined beam.

[0028] As a preferred solution of this embodiment, two inclined column longitudinal stiffening plates 3 are arranged in the box-shaped inclined column 1, and one inclined beam longitudinal stiffening plate 5 is arranged in the box-shaped inclined beam 2.

[0029] As a preferred solution of this embodiment, the pump pipe 10 includes an annular main pump pipe 14 located on the outside of the box-shaped inclined column 1 and a branch pump pipe 15 connected between the annular main pump pipe 14 and the box-shaped inclined column 1. The outside of the annular main pump pipe 14 is evenly connected to a number of concrete pump truck connecting pipes.

[0030] As a preferred solution of this embodiment, a negative pressure pump hole is opened at the top end of the crown beam, and the negative pressure pump hole is connected to a negative pressure pump.

[0031] As a preferred solution of this embodiment, the ring-shaped box-shaped inclined columns 1 are shaped like a small waist with a narrow middle portion in the height direction.

[0032] As a preferred solution of this embodiment, the inclined column observation grouting holes are arranged at intervals of 4m, the apertures of the inclined column transverse grouting holes 6, the inclined column vertical grouting holes 7 and the inclined beam grouting holes 8 are 150mm, and the apertures of the inclined column observation exhaust grouting holes 12 and the inclined beam observation exhaust grouting holes 13 are 5cm.

[0033] A casting construction method for a group space curved and twisted arc-shaped inclined column and inclined beam steel structure comprises the following steps:

[0034] Step 1, box-shaped inclined columns 1 and box-shaped inclined beams 2 are manufactured, inclined column transverse grouting holes 6 and inclined column vertical grouting holes 7 are respectively provided on the inclined column longitudinal stiffening plates 3 and the inclined column transverse stiffening plates 4, inclined beam grouting holes 8 are provided at intervals on the inclined beam longitudinal stiffening plates 5, column-beam grouting holes 9 are provided on the outer wall of the box-shaped inclined column 1 according to the overall shape, oblique column observation exhaust grouting holes 12 are provided at intervals, an inclined beam observation exhaust grouting hole 13 connected to the outside is provided at a position above the inclined beam longitudinal stiffening plate 3 at the higher end of the box-shaped inclined beam 2, and inclined column crown beam grouting holes are provided at a position corresponding to the box-shaped inclined column 1 on the box-shaped crown beam 11;

[0035] Step 2: hoist the box-shaped inclined columns 1 in sections and hoist the box-shaped inclined beams 2 between adjacent box-shaped inclined columns 1 until the construction of all the box-shaped inclined columns 1 and the box-shaped inclined beams 2 is completed;

[0036] Step 3: hoisting the box-shaped crown beam 11 and the negative pressure pump;

[0037] Step 4: Install the annular main pump pipe 14 and the branch pump pipe 15;

[0038] Step 5: Connect several concrete pump trucks to the annular main pump pipe 10;

[0039] Step 6: After turning on the negative pressure pump, start the grouting jacking work of the concrete pump truck, and at the same time observe and record the slurry discharge of the exhaust grouting hole 13 on the inclined beam;

[0040] Step 7: After the overall jacking and pouring is completed, observe the exhaust grouting holes 13 of the inclined beams that have not been slurried and slurry them.

[0041] The beneficial effects of the present invention are embodied in that the pumping jacking construction process is a concrete vibration-free construction method that utilizes the pumping pressure of a concrete delivery pump to pour self-compacting concrete from the bottom of a steel pipe column, flowing from bottom to top until the entire steel pipe column is filled, and does not intersect with or affect the steel structure construction.

[0042] Compared with the jacking casting of ordinary steel pipe columns, the grid steel structure of this project presents bending and torsion and an interwoven grid in space. The inclined column and inclined beam structure, coupled with the spatial bending and torsion and oblique setting, and the setting of oblique partitions inside the steel structure make its internal structure complex, making it difficult to ensure the casting quality.

[0043] In view of the increasing size of buildings and the increasing required bearing capacity, the present application proposes a group space bending and twisting arc inclined column and inclined beam steel structure and its jacking construction method, wherein: 1. The overall ring-shaped steel structure is composed of inclined columns and inclined beams; 2. The steel structure adopts box-shaped inclined columns 1 and box-shaped inclined beams 2, so that it is convenient to set the inclined column longitudinal stiffening plates 3, the inclined column transverse stiffening plates 4 and the inclined beam longitudinal stiffening plates 5 inside, thereby providing a reasonable structural layout for the overall jacking; 3. An inclined beam observation exhaust and grouting hole 13 connected to the outside is opened at the higher end of the box-shaped inclined beam 2 and located above the inclined beam longitudinal stiffening plate 3, which is used to observe whether the box-shaped inclined beam 2 is fully filled with grout and has both exhaust and possible grouting in the later stage; 4. The overall ring-shaped main pump pipe 10 and each The branch pump pipe 15 ensures the synchronous lifting of the whole, so that the whole can be constructed smoothly; 5. A negative pressure pump is arranged on the top to assist the lifting of the whole, so that the lifting of the whole can be relatively smooth, and the box-shaped inclined beam 2 can be fully poured to a large extent, and only the box-shaped inclined beam 2 with a steeper slope needs to be grouted later; 6. The inclination angles and directions of the box-shaped inclined columns 1 and the box-shaped inclined beams 2 can be freely combined to construct a natural and aesthetic shape. Therefore, the present application realizes a construction method in which the box-shaped inclined columns 1 and the box-shaped inclined beams 2 are lifted and poured as a whole through the mutual cooperation and support of the technical solutions of points 1 to 6, which greatly saves the use cycle, improves the construction efficiency, and has very good structural strength to meet the increasing needs of bearing capacity.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that a technician familiar with the technical field can think of within the technical scope disclosed in the present invention should be covered within the protection scope of the present invention.

Claims

1. A group space bending and twisting arc-shaped oblique column and oblique beam steel structure, characterized by: The invention comprises a plurality of box-shaped inclined columns (1) arranged in a ring shape and a box-shaped inclined beam (2) connected between adjacent box-shaped inclined columns (1). The box-shaped inclined columns (1) and the box-shaped inclined beam (2) are both rectangular steel pipes. The box-shaped inclined columns (1) are arranged obliquely in a ring-shaped plane. The two ends of the box-shaped inclined beam (2) have a height difference. The inner side of the box-shaped inclined columns (1) has a plurality of inclined column longitudinal stiffening plates (3) along the length direction and a plurality of inclined column transverse stiffening plates (4) along the cross-section. The inner side of the box-shaped inclined beam (2) has a plurality of inclined beam longitudinal stiffening plates (5) along the length direction. The inclined column longitudinal stiffening plates (3) are provided with inclined column transverse grouting holes (6) corresponding to each adjacent inclined column transverse stiffening plates (4). The inclined column transverse stiffening plates (4) are provided with inclined column vertical grouting holes (7). The inclined column longitudinal stiffening plates (3) are provided with inclined beam grouting holes (8) at intervals. The outer wall of the box-shaped inclined column (1) and the inclined beam are connected to each other. Column beam grouting holes (9) are opened at corresponding positions, the bottom end of the box-shaped inclined column (1) is connected to a pump pipe (10), the top ends of a plurality of box-shaped inclined columns (1) are provided with box-shaped crown beams (11) located at the top ends of all the box-shaped inclined columns (1), the bottom end of the box-shaped crown beam (11) is opened with inclined column crown beam grouting holes connected to the box-shaped columns, inclined column observation exhaust grouting holes (12) connected to the outside are opened at intervals in the height direction on the outer wall of the box-shaped inclined column (1), and an inclined beam observation exhaust grouting hole (13) connected to the outside is opened at a position above the inclined column longitudinal stiffening plate (3) at the higher end of the box-shaped inclined beam (2), and the pump pipe (10) includes an annular main pump pipe (14) located outside the box-shaped inclined column (1) and a branch pump pipe (15) connected between the annular main pump pipe (14) and the box-shaped inclined column (1), and the outer side of the annular main pump pipe (14) is evenly connected to a plurality of concrete pump truck connecting pipes.

2. According to claim 1, a group space bending and twisting arc-shaped oblique column and oblique beam steel structure is characterized by: Two inclined column longitudinal stiffening plates (3) are arranged in the box-shaped inclined column (1), and one inclined beam longitudinal stiffening plate (5) is arranged in the box-shaped inclined beam (2).

3. The group space bending and twisting arc-shaped oblique column and oblique beam steel structure according to claim 2 is characterized by: A negative pressure pump hole is formed at the top end of the crown beam, and the negative pressure pump hole is connected to a negative pressure pump.

4. The group space bending and twisting arc-shaped oblique column and oblique beam steel structure according to claim 3 is characterized by: The ring-shaped box-shaped inclined columns (1) are shaped like a small waist with a narrow middle portion in the height direction.

5. The group space bending and twisting arc-shaped oblique column and oblique beam steel structure according to claim 4 is characterized by: The oblique column observation grouting holes are arranged at intervals of 4m. The diameters of the oblique column transverse grouting holes (6), the oblique column vertical grouting holes (7) and the oblique beam grouting holes (8) are 150mm, and the diameters of the oblique column observation exhaust grouting holes (12) and the oblique beam observation exhaust grouting holes (13) are 5cm.

6. A method for casting and constructing a group space bending and twisting arc-shaped oblique column and oblique beam steel structure according to any one of claims 1 to 5, characterized in that: The following steps are included: Step 1, manufacturing a box-shaped inclined column (1) and a box-shaped inclined beam (2), respectively opening an inclined column transverse grouting hole (6) and an inclined column vertical grouting hole (7) on the inclined column longitudinal stiffening plate (3) and the inclined column transverse stiffening plate (4), and opening inclined beam grouting holes (8) at intervals on the inclined beam longitudinal stiffening plate (5); according to the overall shape, opening column-beam grouting holes (9) on the outer wall of the box-shaped inclined column (1), and opening inclined column observation exhaust grouting holes (12) at intervals; an inclined beam observation exhaust grouting hole (13) communicating with the outside is opened at a position above the inclined column longitudinal stiffening plate (3) at the higher end of the box-shaped inclined beam (2); and an inclined column crown beam grouting hole is opened at a position corresponding to the box-shaped inclined column (1) on the box-shaped crown beam (11); Step 2: hoist the box-shaped inclined columns (1) in sections and hoist the box-shaped inclined beams (2) between adjacent box-shaped inclined columns (1) until the construction of all the box-shaped inclined columns (1) and the box-shaped inclined beams (2) is completed; Step 3, hoisting the box-shaped crown beam (11) and the negative pressure pump; Step 4: Install the annular main pump pipe (14) and the branch pump pipe (15); Step 5: Connect several concrete pump trucks to the annular main pump pipe (10); Step 6: After starting the negative pressure pump, start the grouting jacking work of the concrete pump truck, and at the same time observe and record the grouting situation of the exhaust grouting hole (13) on the inclined beam; Step 7: After the overall jacking and pouring is completed, the inclined beams that have not been slurried are observed to be slurried at the exhaust slurry filling holes (13).

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