CN220747693U - Steel-pipe column core concrete pouring structure - Google Patents

Abstract

The utility model relates to a super high-rise building construction's technical field, in particular to steel-pipe column core concrete fills structure, this steel-pipe column core concrete fills structure includes the steel-pipe column, pumping device and pump line, the inside annular reinforcing rib plate that can supply concrete to pass through that radially is provided with of steel-pipe column butt joint department, the steel-pipe column includes elementary steel-pipe column and secondary steel-pipe column, elementary steel-pipe column sets up in bottommost, secondary steel-pipe column makes progress the group in proper order, the grout hole has been seted up to secondary steel-pipe column lateral wall bottom position, the one end and the pumping device of pump line are connected, the pump line other end is connected with high-pressure wear-resisting hose, high-pressure wear-resisting hose passes the grout hole, and stretch into this section secondary steel-pipe column bottom reinforcing rib plate below, high-pressure wear-resisting hose and grout hole clearance setting. The method combines the respective technical advantages of the high-position throwing vibration-free method and the pumping jacking method, overcomes the technical defects of the high-position throwing vibration-free method and the pumping jacking method, and simplifies the process of concrete pouring inside the steel pipe column on the basis of guaranteeing the concrete pouring quality.

Description

Steel-pipe column core concrete pouring structure

Technical Field

The application relates to the technical field of super high-rise building construction, in particular to a steel pipe column core concrete pouring structure.

Background

At present, the concrete column core steel pipe column is widely used in large-scale buildings or super high-rise buildings. The concrete column core steel pipe column consists of an external huge steel pipe and concrete filled in the steel pipe. In general, after the outer huge steel pipe is fixed, welded and inspected to be qualified, the inner concrete is poured, which is one of the main construction steps for constructing the core steel pipe column of the super high-rise building concrete column. The external steel pipe can effectively restrict the deformation of concrete in the steel pipe, and the concrete can also prevent the inward deformation of the steel pipe and bear part of axial force, so that compared with a common concrete column, the bearing capacity of the concrete column core steel pipe column under the same section is greatly improved. The concrete column core steel pipe column combines the advantages of a steel structure and a concrete structure, and has the advantages of high bearing capacity, good anti-seismic performance, excellent economic benefit, convenience in construction and the like.

The existing method for pouring concrete into the giant steel pipe column mainly adopts a high-level drop vibration-free stirring method and a pumping jacking method. The high-position throwing vibration-free method is to hoist the concrete to the top of the steel pipe column through a tower crane, water the concrete from top to bottom, achieve the effect of self-compaction of the concrete by utilizing kinetic energy generated by high-position downward throwing, and is simple in construction method. The pumping jacking method is to set grouting holes in the side wall of the root of the steel pipe column, obliquely insert pumping bent pipes towards the top of the steel pipe column into the steel pipe column and weld the pumping bent pipes at the grouting holes, continuously convey concrete from bottom to top by utilizing a high-pressure pump truck, naturally densify the concrete by jacking extrusion, immediately close a flow stopping gate to prevent backflow after the grouting is completed, cut off the pumping bent pipes after the concrete is solidified, and weld a sealing plate.

In the related art scheme, the inventor finds that at least the following problems exist: the high-position throwing vibration-free method is easy to form air holes at the internal corners formed by the inter-joint reinforcing rib plates in the steel pipe column and the column wall of the steel pipe column, so that the concrete pouring quality is influenced; the pumping bent pipe used by the pumping jacking method is welded on the steel pipe column, the welding engineering amount is large, the flow stop gate is closed to prevent backflow after pouring is finished, the pumping bent pipe outside the steel pipe column is required to be cut off after concrete is solidified, the concrete pouring workload is increased, and the construction progress is seriously influenced.

Disclosure of Invention

In order to simplify the process of pouring concrete inside the steel-pipe column on the basis of guaranteeing the concrete pouring quality, the application provides a steel-pipe column core concrete pouring structure.

The application provides a steel-pipe column post core concrete filling structure adopts following technical scheme:

the utility model provides a steel-pipe column post core concrete pouring structure, includes steel-pipe column, pumping mechanism and pump line, steel-pipe column butt joint department inside radially is provided with the annular reinforcing rib board that can supply concrete to pass through, the steel-pipe column includes primary steel-pipe column and secondary steel-pipe column, primary steel-pipe column sets up in bottommost, secondary steel-pipe column upwards assembles in proper order, the grout hole has been seted up to secondary steel-pipe column lateral wall bottom position, the one end of pump line with pumping mechanism connects, the pump line other end is connected with high-pressure wear-resisting hose, high-pressure wear-resisting hose pass the grout hole and stretch into this section secondary steel-pipe column bottom the reinforcing rib board below, high-pressure wear-resisting hose with the grout hole clearance sets up.

By adopting the technical scheme, the technical advantages of the high-level throwing vibration-free method and the pumping jacking method are combined, and the technical defects of the high-level throwing vibration-free method and the pumping jacking method are overcome. The high-pressure wear-resistant hose is naturally bent downwards under the action of gravity, a pipe orifice firstly penetrates below a reinforced rib plate at the bottom of the first section of secondary steel pipe column, and the reinforced rib plate supports the high-pressure wear-resistant hose to keep the pipe orifice vertically downwards, so that the deformation of the side wall of the steel pipe column caused by overlarge local pressure of concrete is avoided; the concrete is conveyed by the pumping device through the pump pipe and the high-pressure wear-resistant hose, and firstly the high-pressure wear-resistant hose buffers the conveyed concrete to play a role in damping; the sectional pouring can ensure that the concrete pouring process does not need vibrating, and the self-compaction degree of the concrete in each section of steel pipe column tends to be consistent; the pipe orifice of the high-pressure wear-resistant hose is positioned below the reinforced rib plate, and before the concrete is poured to the pipe orifice of the high-pressure wear-resistant hose, the high-pressure wear-resistant hose is equivalent to a high-position throwing vibration-free method; after the concrete is poured above the pipe orifice of the high-pressure wear-resistant hose, the concrete is equivalent to a pumping jacking method, and an internal corner formed by the reinforcing rib plate and the steel pipe column wall is filled; and stopping the concrete before pouring the concrete to the position of the grouting holes. The pumping process does not need to do and prevents flowing backward the processing, and high-pressure wear-resisting hose does not need welded fastening along with plug, and after current grout hole welding seals, directly moves high-pressure wear-resisting hose to the grout hole of next secondary steel-pipe column and repeats above-mentioned process, very big simplification construction flow, and high-pressure wear-resisting hose can recycle, avoided the waste of pumping return bend in a large number among the prior art.

Optionally: and the side wall of the steel pipe column is provided with a pulp overflow hole.

Through adopting above-mentioned technical scheme, the thick liquid hole that overflows can be with the inside gas of post core concrete pouring steel-pipe column and the muddy water that concrete separated out discharge, improves the pouring quality of post core concrete.

Optionally: the overflow slurry holes are uniformly formed in a plurality of mode and are uniformly formed along the length direction of the steel pipe column, and the diameter of each overflow slurry hole is smaller than or equal to 20mm.

By adopting the technical scheme, the pouring height of the concrete in the steel pipe column can be observed according to the state of the grout overflow hole, so that the pumping progress of the concrete can be controlled. The excessive size of the overflow slurry holes can lead to concrete waste, and can generate larger pressure to the overflow slurry holes, preferably less than or equal to 20mm.

Optionally: the grouting hole edge is provided with a reinforcing plate mounted on the steel pipe column.

By adopting the technical scheme, the structural strength of the grouting hole is enhanced by the reinforcing plate, the risk that the grouting hole is deformed due to the impact force generated by concrete pumping is reduced, and the grouting hole is prevented from being torn.

Optionally: the reinforcing plate is an annular steel plate attached to the inner wall of the steel pipe column, and the edge of the inner ring is matched with the grouting hole.

Through adopting above-mentioned technical scheme, carry out local reinforcement around the grout hole, improve structural strength, the stiffening plate setting keeps the steel-pipe column outer wall surface to be level and smooth in inside.

Optionally: the grouting holes face to the inner side of the construction floor.

Through adopting above-mentioned technical scheme, the grout hole of orientation construction area inboard makes things convenient for construction operation personnel to operate, has improved the factor of safety when the post core concrete fills, reduces the high altitude risk of falling that leads to because of the accident in the filling process.

Optionally: and a bracket is supported below the high-pressure wear-resistant hose, and the height of the bracket is flush with the lower edge of the grouting hole.

By adopting the technical scheme, the support supports the high-pressure wear-resistant hose and the grouting holes to be kept horizontal, so that concrete pumping is smoother, impact generated by the high-pressure wear-resistant hose and the grouting holes in concrete pumping is weakened, and meanwhile, physical consumption of operation of constructors is reduced.

Optionally: the pump pipe includes right angle curved pump pipe and a plurality of vertical pump pipe, and is a plurality of vertical pump pipe is followed vertical direction butt joint, and the lower extreme the bottom of vertical pump pipe is connected with pumping device, and the uppermost the top of vertical pump pipe with right angle curved pump pipe is connected, right angle curved pump pipe with the grout hole flushes.

Through adopting above-mentioned technical scheme, conveniently carry out the concrete to each section steel-pipe column and pour into, accomplish one section secondary steel-pipe column and pour into the back, with right angle curved pump pipe and dismantle the back with high-pressure wear-resisting hose, upwards set up the vertical pump pipe of group and extend to next grout hole, dock right angle curved pump pipe and high-pressure wear-resisting hose again, simplify the construction degree of difficulty, save engineering cost.

Optionally: the secondary steel pipe column is internally provided with a guide slide way inclined towards one side of the grouting hole, the guide slide ways are two steel bars which are parallel to each other and have a distance smaller than the diameter of the high-pressure wear-resistant hose, the lower ends of the two steel bars are connected to one side, far away from the grouting hole, of the inner ring of the reinforcing rib plate, and the upper ends of the two steel bars are higher than the upper edge of the grouting hole.

Through adopting above-mentioned technical scheme, high pressure wear-resisting hose passes the guide of leading slide after the grout hole, in addition the action of gravity, passes the cavity inner ring of reinforcing rib plate smoothly under the centre gripping of two steel bars, stretches into the reinforcing rib plate below, and leading slide installation simple easy operation, the steel bar lower extreme welding can in the reinforcing rib plate inner ring directly from the steel-pipe column bottom.

In summary, the present application has the following beneficial effects:

1. the concrete of each section of steel pipe column core is ensured to have good pouring quality and self-compaction degree which tends to be consistent;

2. the construction steps of pouring concrete into the column core of the steel pipe column are simplified, a large amount of manpower and material resources are saved, and the engineering construction cost is reduced;

3. the safety of the steel pipe column core concrete pouring construction is improved;

4. the steel pipe column core poured concrete does not occupy the working surfaces of the tower crane and the steel structure any more, so that the construction speed of the steel structure and the outer frame building carrier plate is accelerated, and the construction period is shortened.

Drawings

Fig. 1 is a schematic view of a structure in which a primary steel pipe column core is poured with concrete according to the first embodiment;

fig. 2 is a plan view of the steel pipe column of the first embodiment, showing the positional relationship of the reinforcing ribs and the high-pressure abrasion-resistant hose;

fig. 3 is a schematic structural view of the first embodiment in which concrete is poured into the secondary steel pipe column core;

fig. 4 is a schematic view of a steel pipe column core concrete pouring structure of the second embodiment;

fig. 5 is a plan view of a secondary steel pipe column according to the second embodiment, showing the positional relationship between the guide runner and the high-pressure abrasion-resistant hose.

In the figure, 100, steel pipe column; 110. a primary steel pipe column; 120. a secondary steel pipe column; 130. reinforcing rib plates; 131. a guide slideway; 140. grouting holes; 150. a pulp overflow hole; 160. a reinforcing plate; 200. a pumping device; 300. a pump tube; 310. a high pressure wear resistant hose; 320. a right angle bend pump tube; 330. a vertical pump tube; 340. a flange; 350. the pump pipe is clasped; 400. a bracket; 500. floor carrier plate.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

In the description of the present application, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Example 1: a steel pipe column core concrete pouring structure, as shown in fig. 1, comprises a steel pipe column 100, a pumping device 200 and a pump pipe 300.

In this embodiment, a steel pipe column 100 having two floors as one section and an inner diameter of 1200mm will be described as an example. The side wall of the steel pipe column 100 is provided with a plurality of grout overflow holes 150 with the diameter of 20mm, and the grout overflow holes 150 are uniformly arranged along the length direction of the steel pipe column 100 at intervals of 1200 mm. Referring to fig. 2, a circular reinforcing rib 130 is radially provided inside the butt joint of the ports of the steel pipe column 100. The steel pipe column 100 further comprises a primary steel pipe column 110 and a plurality of secondary steel pipe columns 120, wherein a circular grouting hole 140 is formed in the bottom of the side wall of the secondary steel pipe column 120, and an annular steel plate attached to the inner wall is arranged inside the secondary steel pipe column 120 along the edge of the grouting hole 140 to serve as a reinforcing plate 160.

The primary steel pipe column 110 is fixed to the ground foundation, and the secondary steel pipe columns 120 are sequentially assembled upward toward the floor deck 500 according to the grouting holes 140.

Referring to fig. 3, a pump tube 300 includes a right angle bend pump tube 320 and several vertical pump tubes 330. The pumping device 200 is connected with vertical pump pipes 330, a plurality of vertical pump pipes 330 are fixed with a floor support plate 500 through pump pipe clasps 350, after being upwards distributed near the height position of the grouting holes 140 of the secondary steel pipe column 120, the vertical pump pipes 320 are connected, the height of the vertical pump pipes 320 is flush with the height of the grouting holes 140, and the other ends of the vertical pump pipes 320 are connected with high-pressure wear-resistant hoses 310.

The vertical pump pipe 330, the right angle bend pump pipe 320 and the high pressure abrasion resistant hose 310 are all connected by a flange 340. The high pressure abrasion-resistant hose 310 is overlapped on the bracket 400 placed on the floor support plate 500, and the upper end surface of the bracket 400 is equal in height to the lower edge of the grouting hole 140. The other end of the high pressure abrasion-resistant hose 310 is penetrated by the grouting hole 140 with a gap left therebetween. The diameter of the high-pressure abrasion-resistant hose 310 is far smaller than the diameter of the inner ring of the reinforcing rib plate 130, and the inner ring of the reinforcing rib plate 130 at the joint of the steel pipe column 100 below the grouting holes 140 penetrates deeply until the pipe orifice of the high-pressure abrasion-resistant hose 310 is positioned below the two reinforcing rib plates 130.

Working principle:

the grouting holes 140 and the overflow holes 150 are transported to a construction site after being processed in a factory. The construction ground foundation construction is completed, the primary steel pipe column 110 is welded and fixed on the foundation, the secondary steel pipe column 120 is downwards arranged according to one end provided with the grouting holes 140, and the grouting holes 140 are upwards hoisted and welded in sequence towards the floor support plate 500.

After the entire steel pipe column 100 is welded, a pump pipe 300 is routed from the pumping device 200 to the steel pipe column 100. The plurality of vertical pump pipes 330 fixed on the floor support plate 500 by the pump pipe clasps 350 are butted through the flange 340, extend to the height of the grouting holes 140 of the first section of the secondary steel pipe column 120 connected with the primary steel pipe column 110, and are butted with the right angle bent pump pipes 320 and the high-pressure abrasion-resistant hose 310 through the flange 340. The high-pressure wear-resistant hose 310 is stretched into the grouting holes 140, the pipe orifice end of the high-pressure wear-resistant hose 310 is naturally bent downwards under the action of gravity, and the high-pressure wear-resistant hose 310 can be observed through the grouting holes 150 to confirm the stretching position and state of the high-pressure wear-resistant hose 310, so that the high-pressure wear-resistant hose 310 is ensured to stretch below the reinforced rib plates 130 at the butt joint position of the steel pipe columns 100 below the grouting holes 140. A high-pressure abrasion-resistant hose 310 outside the secondary steel pipe column 120 is installed on the bracket 400.

After the pump tube 300 is laid, the concrete pouring operation can be started. The pumping pressure of the concrete by the pumping device 200 is continuously injected into the primary steel pipe column 110 via the vertical pump pipe 330, the right angle bend pump pipe 320 and the high pressure abrasion resistant hose 310.

Before the concrete pouring height reaches the pipe orifice of the high-pressure abrasion-resistant hose 310, the method is equivalent to a high-position throwing vibration-free method; after the concrete pouring height exceeds the pipe orifice of the high-pressure abrasion-resistant hose 310, the concrete fills the internal corner formed by the reinforcing rib plate 130 and the column wall of the steel pipe column 100 in a pumping jacking method; it can be observed through the grout holes 150 that pumping is stopped when the concrete fill level approaches the grout holes 140.

And (3) extracting the high-pressure abrasion-resistant hose 310, removing the right-angle bent pump pipe 320, welding the steel plate of the cut part of the grouting hole 140 back to the grouting hole 140 of the first-section secondary steel pipe column 120, continuing to butt-joint and extend the vertical pump pipe 330 upwards to the height of the next grouting hole 140, and repeating the above grouting steps after reinstalling and arranging the right-angle bent pump pipe 320 and the high-pressure abrasion-resistant hose 310.

Example 2: the steel pipe column core concrete pouring structure is different from embodiment 1 in that, as shown in fig. 4 and 5, in the interior of the secondary steel pipe column 120, the inner ring of the bottom reinforcement rib 130 is far away from the grouting holes 140, a guiding slideway 131 which is inclined towards the grouting holes 140 and is composed of two mutually parallel steel bars is welded, the upper end of the guiding slideway 131 is higher than the upper edge of the grouting holes 140, and the distance between the two steel bars is smaller than the diameter of the high-pressure wear-resistant hose 310.

Working principle:

the steel strip of the guide runner 131 is welded in the factory by extending from the inner ring of the reinforcing rib 130 into the secondary steel pipe column 120.

In the stage of arranging the pump pipe 300, after the high-pressure wear-resistant hose 310 extends into the grouting hole 140, one end of the pipe orifice is naturally bent downwards under the action of gravity, the guide slide way 131 is obliquely arranged towards one side of the grouting hole 140, after the pipe orifice of the high-pressure wear-resistant hose 310 contacts the guide slide way 131, the high-pressure wear-resistant hose is guided by the slide way formed between the two steel bars to necessarily advance towards the inner ring of the reinforcing rib plate 130, and can smoothly downwards extend to the lower part of the reinforcing rib plate 130.

The embodiments of the present utility model are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (9)

1. The utility model provides a steel-pipe column post core concrete pouring structure, includes steel-pipe column (100), pumping device (200) and pump line (300), its characterized in that: the steel-pipe column (100) is radially provided with annular reinforcing rib plates (130) for passing concrete, the steel-pipe column (100) comprises a primary steel-pipe column (110) and a secondary steel-pipe column (120), the primary steel-pipe column (110) is arranged at the bottommost part, the secondary steel-pipe column (120) is sequentially assembled upwards, grouting holes (140) are formed in the bottom of the side wall of the secondary steel-pipe column (120), one end of a pump pipe (300) is connected with the pumping device (200), the other end of the pump pipe (300) is connected with a high-pressure abrasion-resistant hose (310), the high-pressure abrasion-resistant hose (310) penetrates through the grouting holes (140) and stretches into the bottom of the secondary steel-pipe column (120) below the reinforcing rib plates (130), and the high-pressure abrasion-resistant hose (310) is arranged with a gap between the grouting holes (140).

2. The steel pipe column core concrete pouring structure according to claim 1, wherein: and a pulp overflow hole (150) is formed in the side wall of the steel pipe column (100).

3. The steel pipe column core concrete pouring structure according to claim 2, wherein: the overflow holes (150) are uniformly formed in a plurality of ways along the length direction of the steel pipe column (100), and the diameter of each overflow hole (150) is smaller than or equal to 20mm.

4. A steel pipe column core concrete pouring structure according to claim 3, wherein: the grouting hole (140) is provided with a reinforcing plate (160) at the edge thereof, which is mounted on the steel pipe column (100).

5. The steel pipe column core concrete pouring structure according to claim 4, wherein: the reinforcing plate (160) is an annular steel plate attached to the inner wall of the steel pipe column (100), and the edge of the inner ring is matched with the grouting hole (140).

6. The steel pipe column core concrete pouring structure according to claim 1, wherein: the grouting holes (140) face the inner side of the construction floor.

7. The steel pipe column core concrete pouring structure according to claim 6, wherein: a bracket (400) is supported below the high-pressure wear-resistant hose (310), and the height of the bracket (400) is flush with the lower edge of the grouting hole (140).

8. The steel pipe column core concrete pouring structure according to claim 7, wherein: the pump pipe (300) comprises a right-angle bent pump pipe (320) and a plurality of vertical pump pipes (330), wherein the vertical pump pipes (330) are in butt joint along the vertical direction, the bottom of the vertical pump pipe (330) is connected with the pumping device (200), the top of the vertical pump pipe (330) is connected with the right-angle bent pump pipe (320), and the right-angle bent pump pipe (320) is flush with the grouting hole (140).

9. The steel pipe column core concrete pouring structure according to claim 1, wherein: be equipped with in secondary steel-pipe column (120) to direction slide (131) of grout hole (140) one side slope, direction slide (131) are two be parallel to each other and the interval is less than the billet of high pressure wear-resisting hose (310) diameter, two the lower extreme of billet connect in the reinforcing rib board (130) inner ring keep away from one side of grout hole (140), the upper end is higher than grout hole (140) upper edge.