Pouring construction method for super high-rise outer frame inclined circular tube steel column

Abstract

The application discloses a kind of super high layer outer frame inclined round pipe steel column pouring construction methods, in super high layer outer frame inclined round pipe steel column side, i.e. the joint of upper and lower two layers of inclined steel pipe, the pouring hole is opened above stiffened ring plate, when lower floor slab steel bar formwork completes pouring concrete, synchronous pump pipe connects hose insertion pouring hole and is lifted pouring, while vibrating in the pouring stiffened ring plate position by the top of steel pipe column and inserts vibrating rod, to avoid concrete pouring at stiffened ring plate and take place hollow drum. The application solves the problem that the existing super high layer round pipe column pouring scheme is not easy to pour dense or pump pipe blockage when pouring inclined round pipe column.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a method for casting inclined circular steel columns for the outer frame of super high-rise buildings. Background Technology

[0002] There are currently two construction techniques for casting ultra-high-rise circular tubular columns: The first method uses top-high-throw casting, where a casting opening is pre-reserved at the top of the steel tubular column for vertical casting. This method is difficult to implement when the steel tubular column is not vertically inclined, making the construction of the operating platform challenging and posing a high risk to workers installing the pump pipe. Furthermore, top-down casting can easily lead to voids at the annular plates inside the steel tubular column, making it difficult to achieve a dense structure. The second method uses a jacking casting method with an opening at the bottom of the steel tubular column. This method is slow when the steel tubular column is inclined, has angles between the upper and lower layers, and has a large number of annular plates. Excessive jacking pressure can cause pump pipe blockage or deformation of the steel tubular column.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, a construction method for casting inclined circular tube steel columns for the outer frame of super high-rise buildings is provided to solve the problem that existing super high-rise circular tube column casting schemes are not easy to fill densely or have pump pipe blockages when casting inclined circular tube columns.

[0005] To achieve the above objectives, a construction method for casting inclined circular steel columns for the outer frame of super high-rise buildings is provided, including the following steps:

[0006] a. Three inclined steel pipes are installed layer by layer from bottom to top on the outside of the core tube, so that the three inclined steel pipes are coaxially welded together to form a steel pipe column;

[0007] b. Install multiple floor slabs layer by layer from bottom to top between the core tube and the three inclined steel pipes. A stiffening ring plate is formed on the upper inner wall of the inclined steel pipe, and the position of the stiffening ring plate corresponds to the position of the floor slab.

[0008] c. Concrete is poured on the floor slab connected to the inclined steel pipe at the bottom floor via the vertical pump pipe of the core tube.

[0009] d. Casting holes are made in the inclined steel pipes of the middle layer;

[0010] e. Connect the horizontal pump pipe to the vertical pump pipe of the core tube and lay it on the floor slab connected to the inclined steel pipe of the middle layer.

[0011] f. Concrete is poured into the bottom inclined steel pipe and the middle inclined steel pipe through the horizontal pump pipe, up to the bottom of the stiffening ring plate in the middle inclined steel pipe.

[0012] g. Lowering the vibrating rod into the concrete in the inclined steel pipe through the upper pipe opening of the top layer of inclined steel pipe and vibrating to compact;

[0013] h. Continuing to pour concrete into the inclined steel pipe of the middle layer through the horizontal pump pipe to above the stiffening ring plate of the inclined steel pipe of the middle layer and vibrating to compact;

[0014] i. Pouring concrete on the floor slab connected with the inclined steel pipe of the middle layer through the core tube vertical pump pipe;

[0015] j. Pouring concrete into the inclined steel pipe of the top layer through the upper pipe opening of the inclined steel pipe of the top layer and pouring concrete on the floor slab connected with the inclined steel pipe of the top layer;

[0016] k. Repeating steps a-j to install the inclined steel pipe upward section by section until the concrete pouring of the super high-rise outer frame inclined round pipe steel column is completed.

[0017] Further, the end of the horizontal pump pipe is connected with a hose which extends into the inclined steel pipe through the pouring hole for concrete pouring.

[0018] Further, the pouring hole is located higher than the surface of the floor slab corresponding in position.

[0019] Further, before the step of pouring concrete on the floor slab connected with the inclined steel pipe of the middle layer through the core tube vertical pump pipe, the pouring hole is blocked.

[0020] The beneficial effects of the present application are that the super high-rise outer frame inclined round pipe steel column pouring construction method of the present application opens a pouring hole above the stiffening ring plate at the joint of the upper and lower inclined steel pipes on the side of the super high-rise outer frame inclined round pipe steel column, inserts a pump pipe connected hose into the pouring hole for lifting pouring when the lower floor slab steel reinforcement formwork completes the pouring of concrete, and inserts a vibrating rod from the top of the steel pipe column to vibrate at the position of the pouring of the stiffening ring plate, thereby avoiding the occurrence of hollowing at the pouring of the stiffening ring plate and safely and efficiently solving the problem of the pouring construction of the super high-rise outer frame inclined round pipe steel column. BRIEF DESCRIPTION OF DRAWINGS

[0021] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the following drawings:

[0022] Figure 1 FIG. 1 is a structural schematic diagram of the super high-rise outer frame inclined round pipe steel column pouring construction method of the embodiment of the present application.

[0023] Figure 2 FIG. 2 is a schematic diagram of the relative position of the floor slab and the pouring hole of the embodiment of the present application. DETAILED DESCRIPTION

[0024] The application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, but not to limit the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for ease of description.

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0026] Referring to FIGS. 1 to 3, Figure 1 and Figure 2 The present application provides a pouring construction method of an outer frame inclined circular pipe steel column of an ultra-high building, comprising the following steps:

[0027] a. Installing three-section inclined steel pipes from bottom to top layer by layer outside the core tube, so that the three-section inclined steel pipes are coaxially welded and connected to form a steel pipe column.

[0028] Specifically, the three-section inclined steel pipes include an inclined steel pipe A at the bottom layer, an inclined steel pipe B at the middle layer, and an inclined steel pipe C at the top layer.

[0029] The upper part of the inclined steel pipe is provided with a stiffening ring plate. The stiffening ring plate is arranged at a position close to the upper end of the inclined steel pipe.

[0030] The welding construction of the inclined steel pipe A, the inclined steel pipe B, and the inclined steel pipe C is completed in sequence according to the construction sequence.

[0031] b. Installing multiple floor slabs from bottom to top layer by layer between the core tube and the three-section inclined steel pipes, the inner wall of the upper part of the inclined steel pipe is formed with a stiffening ring plate 2, and the position of the stiffening ring plate 2 corresponds to the position of the floor slab.

[0032] In this embodiment, the multiple floor slabs include a floor slab D connected with the inclined steel pipe A at the bottom layer, a floor slab E connected with the inclined steel pipe B at the middle layer, and a floor slab F connected with the inclined steel pipe C at the top layer. In addition, the bottom of the inclined steel pipe A is also connected with a floor support plate.

[0033] The floor slab D connected with the inclined steel pipe A at the bottom layer and the floor support plate, steel bars, and concrete pouring below the floor slab D are constructed in sequence.

[0034] c. Pouring concrete on the floor slab D connected with the inclined steel pipe A at the bottom layer through the core tube vertical pump pipe.

[0035] d. Opening a pouring hole in the inclined steel pipe at the middle layer.

[0036] e. Connecting the horizontal pump pipe to the core tube vertical pump pipe and laying the horizontal pump pipe on the floor slab E connected with the inclined steel pipe B at the middle layer.

[0037] f. Pouring concrete into the bottom of the stiffening ring plate 2 in the middle inclined steel pipe through the horizontal pump pipe.

[0038] The end of the horizontal pump pipe is connected with a hose 1 which extends into the inclined steel pipe through the pouring hole for concrete pouring.

[0039] As a preferred embodiment, the pouring hole is located higher than the floor slab corresponding to the position.

[0040] Specifically, the hose is inserted into the pouring hole (diameter 200mm round hole) of the inclined steel pipe B, and the opening position is 60cm above the floor slab surface. The depth of the hose inserted into the inclined steel pipe B is 10m.

[0041] When pouring concrete into the inclined steel pipe, the hose is lifted synchronously with the height of the concrete pouring.

[0042] g. Lowering the vibrating rod 3 into the concrete in the inclined steel pipe through the upper pipe opening of the top inclined steel pipe C and vibrating and compacting the concrete.

[0043] Vibrating and compacting the stiffening ring plate in the inclined steel pipe B by inserting a 50-type vibrating rod from the top of the inclined steel pipe C.

[0044] h. Continue pouring concrete into the middle inclined steel pipe through the horizontal pump pipe to above the stiffening ring plate 2 of the middle inclined steel pipe and vibrating and compacting the concrete.

[0045] Pull out all the hoses to the orifice of the pouring hole, and pour concrete into the inclined steel pipe to 20cm above the stiffening ring plate in the inclined steel pipe B, and use the vibrating rod to vibrate and compact the concrete.

[0046] i. Pouring concrete on the floor slab connected with the middle inclined steel pipe through the core tube vertical pump pipe.

[0047] Before implementing the step of pouring concrete on the floor slab connected with the middle inclined steel pipe through the core tube vertical pump pipe, seal the pouring hole.

[0048] j. Pouring concrete into the top inclined steel pipe through the upper pipe opening of the top inclined steel pipe and pouring concrete on the floor slab F connected with the top inclined steel pipe C.

[0049] k. Repeat steps a-j to install the inclined steel pipe segment by segment upwards until the concrete pouring of the super high-rise outer frame inclined circular pipe steel column is completed.

[0050] ​The super high-rise outer frame inclined circular pipe steel column pouring construction method of the application opens a pouring hole above the stiffening ring plate at the joint of the upper and lower inclined steel pipes on the side of the super high-rise outer frame inclined circular pipe steel column, and when the lower floor slab steel reinforcement formwork finishes pouring concrete, the pump pipe connecting hose is inserted into the pouring hole for lifting pouring, and at the same time, the vibrating rod is inserted from the top of the steel pipe column for vibrating at the pouring stiffening ring plate position, so as to avoid concrete pouring at the stiffening ring plate from being hollow, and to safely and efficiently solve the pouring construction problem of the super high-rise outer frame inclined circular pipe steel column.

[0051] When the super high-rise outer frame circular pipe steel column is affected by modeling and the inclination angle is large, the super high-rise outer frame inclined circular pipe steel column pouring construction method of the application opens a pouring hole on the side of the inclined steel pipe and inserts a hose, and synchronously pours with the floor slab at the opening position, so as to solve the problem that the independent steel pipe pouring horizontal pump pipe cannot be installed, and at the same time, the floor slab provides a safe and reliable operation platform for pouring operation, has strong implementation and high pouring efficiency.

[0052] The super high-rise outer frame inclined circular pipe steel column pouring construction method of the application inserts the hose into the inclined steel pipe to a certain depth, so that the pouring concrete in the inclined steel pipe has a small pouring surface height difference, and is not prone to quality defects such as aggregate separation.

[0053] The super high-rise outer frame inclined circular pipe steel column pouring construction method of the application inserts the vibrating rod for vibrating, so as to solve the quality defect that the concrete in the circular pipe is hollow at the ring plate.

[0054] The pouring hole on the side of the inclined steel pipe in the super high-rise outer frame inclined circular pipe steel column pouring construction method of the application can be reinforced in the processing plant, without affecting the structural safety and use performance.

[0055] The size of the opening of the inclined steel pipe in the super high-rise outer frame inclined circular pipe steel column pouring construction method of the application is 50mm larger than the diameter of the inserted hose, so as to facilitate lifting of the hose. The opening position height of the pouring hole is 60cm above the floor slab surface, and the distance from the ring plate of the steel pipe of the layer is greater than 20cm, so as to ensure that the pouring height of the steel pipe of the layer is greater than 20cm, and facilitate quality control during pouring of the upper layer.

[0056] The above description is only the preferred embodiment of the application and the explanation of the applied technical principles. It should be understood by those skilled in the art that the application range involved in the application is not limited to the technical solutions formed by the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutual replacement of the above features and the technical features disclosed in the application (but not limited to) having similar functions.

Claims

1. A construction method of a super high-rise outer frame inclined circular tube steel column pouring, characterized in that, The method comprises the following steps: a. installing three inclined steel pipes from bottom to top layer by layer outside the core tube, so that the three inclined steel pipes are coaxially welded to form a steel pipe column; b. installing multiple floor slabs from bottom to top layer by layer between the core tube and the three inclined steel pipes, the inner wall of the upper part of the inclined steel pipe is formed with a stiffened ring plate, and the position of the stiffened ring plate corresponds to the position of the floor slab; c. pouring concrete on the floor slab connected with the inclined steel pipe of the bottom layer through the core tube vertical pump pipe; d. opening a pouring hole on the inclined steel pipe of the middle layer; e. connecting a horizontal pump pipe to the core tube vertical pump pipe and laying it on the floor slab connected with the inclined steel pipe of the middle layer; f. pouring concrete into the inclined steel pipe of the bottom layer and the inclined steel pipe of the middle layer through the horizontal pump pipe to the bottom of the stiffened ring plate in the inclined steel pipe of the middle layer; g. lowering a vibrating rod into the concrete in the inclined steel pipe through the upper pipe opening of the inclined steel pipe of the top layer to compact the concrete; h. continuing to pour concrete into the inclined steel pipe of the middle layer through the horizontal pump pipe to above the stiffened ring plate of the inclined steel pipe of the middle layer and compacting the concrete; i. pouring concrete on the floor slab connected with the inclined steel pipe of the middle layer through the core tube vertical pump pipe; j. pouring concrete into the inclined steel pipe of the top layer through the upper pipe opening of the inclined steel pipe of the top layer and pouring concrete on the floor slab connected with the inclined steel pipe of the top layer; k. repeating steps a-j to install the inclined steel pipe upward section by section until the concrete pouring of the super high-rise outer frame inclined circular pipe steel column is completed.

2. The super high-rise outer frame inclined circular tube steel column pouring construction method according to claim 1, characterized in that, The end of the horizontal pump pipe is connected with a hose which extends into the inclined steel pipe through the pouring hole for concrete pouring.

3. The super high-rise outer frame inclined circular tube steel column pouring construction method according to claim 1, characterized in that, The position of the pouring hole is higher than the surface of the corresponding floor slab.

4. The super high-rise outer frame inclined circular tube steel column pouring construction method according to claim 1, characterized in that, Before the step of pouring concrete on the floor slab connected with the inclined steel pipe of the middle layer through the core tube vertical pump pipe, the pouring hole is blocked.

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