CN214328954U - Cylindrical support node - Google Patents
Cylindrical support node Download PDFInfo
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- CN214328954U CN214328954U CN202022066065.XU CN202022066065U CN214328954U CN 214328954 U CN214328954 U CN 214328954U CN 202022066065 U CN202022066065 U CN 202022066065U CN 214328954 U CN214328954 U CN 214328954U
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Abstract
The utility model provides a cylindrical support node, which comprises an uplift pile arranged in a foundation pit and a steel column arranged above the uplift pile, and also comprises a bracket, wherein the bracket comprises an upper frame and a lower frame which are polygonal, and the upper frame and the lower frame are connected through a plurality of vertical rods; top plates are arranged on each group of top angles of the upper frame, bottom plates are arranged on each group of top angles of the lower frame, the lower ends of the steel columns are arranged on the top plates, and the bottom plates are supported on the pile tops of the uplift piles; a plurality of main reinforcements in the uplift pile are inserted into the support along the pile top direction; the lower end of the steel column, the support and the uplift pile are all poured into the foundation pit through concrete; therefore, in the construction process, the pile top of the uplift pile is not required to be drilled, the operation is convenient, the steel column is directly supported above the support, the force of the steel column is uniformly transmitted to the pile top of the uplift pile, the supporting structure is stable, and the pouring of concrete is facilitated.
Description
Technical Field
The utility model relates to a bearing building structure field particularly, relates to a cylindricality support node.
Background
In large-scale buildings such as stations and gymnasiums, the design of large-span net steel structure latticed shell roof is increasingly adopted, and the characteristics of the buildings are as follows: the entire reticulated shell roof structure is supported by multiple sets of steel columns.
In the construction process of the steel column, a group of reinforced concrete uplift piles are required to be poured in the excavated foundation pit to support the steel column, for example, a 'column-pile connection node in one-column-one-pile construction and construction method thereof' disclosed in the chinese patent application with the application number of 201710366652.0, in the patent application, a reinforcement cage is arranged in the uplift pile, and the steel column and the uplift pile are connected in a manner that the lower end of the steel column is inserted into the reinforcement cage for grouting, so that the connection part of the steel column and the uplift pile has a larger overlapping area and the connection relation is firm; however, it needs to drill out a deep hole that holds the steel reinforcement cage at uplift pile top, and the construction operation degree of difficulty is great, and destroys the pore wall easily, and its steel column lower extreme is V type guide structure simultaneously, and the peg on the steel column outer wall and longitudinal reinforcement can't play effectual supporting role before the concrete solidifies, need hoist and mount this steel column and solidify up to the concrete, waste time and energy.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the shortcoming of background art, provide one kind and need not to drill on the uplift pile and be convenient for install the cylindricality support node of steel column.
The embodiment of the utility model discloses a realize through following technical scheme:
a cylindrical support node comprises an uplift pile arranged in a foundation pit, a steel column arranged above the uplift pile, and a support, wherein the support comprises an upper frame and a lower frame which are polygonal, and the upper frame and the lower frame are connected through a plurality of vertical rods; top plates are arranged on each group of top angles of the upper frame, bottom plates are arranged on each group of top angles of the lower frame, the lower ends of the steel columns are arranged on the top plates, and the bottom plates are supported on the pile tops of the uplift piles;
a plurality of main reinforcements in the uplift pile are inserted into the support along the pile top direction; the lower ends of the steel columns, the supports and the uplift piles are all poured into the foundation pit through concrete.
In some preferred embodiments, each group of vertical corners of the lower frame is provided with one group of vertical rods, and any two adjacent groups of vertical rods are connected through one group of diagonal support rods.
In some preferred embodiments, the upper ends of the main ribs are bent, and the bent parts of the main ribs penetrate through the gaps between the upper frame and the inclined supporting rods to face the outer side of the stent profile.
In some preferred embodiments, a third mesh reinforcement layer is horizontally arranged in the support in a penetrating mode, and the third mesh reinforcement layer is poured into concrete in the foundation pit.
In some preferred embodiments, the third web layer comprises transverse and longitudinal plies perpendicular to each other in the horizontal plane.
In some preferred embodiments, the outer circumferential side of the steel column is further cast with a concrete layer, the concrete layer is located above the foundation pit, and a first mesh reinforcement layer and a second mesh reinforcement layer are further arranged in the concrete layer around the steel column, wherein the first mesh reinforcement layer is located above the second mesh reinforcement layer; the first rib net layer and the second rib net layer are connected through the vertical rib layer.
In some preferred embodiments, the outer circumferential surface of the steel column is provided with a plurality of reinforcement through holes, and part of the reinforcements in the first reinforcement mesh layer are arranged in the reinforcement through holes.
A construction method of the cylindrical support node comprises the following steps:
s1, mounting bracket: installing a support without a top plate on the pile top of the uplift pile, and inserting a plurality of main ribs of the pile top of the uplift pile into the support in a penetrating manner;
s2, hoisting steel columns: firstly, rechecking the elevation of the support, horizontally welding a group of top plates at the joint of each group of upright rods and the upper frame, and hoisting and supporting the steel column on the top plates;
s3, pouring concrete: and concrete is injected into the foundation pit so as to pour the lower end of the steel column, the support and the uplift pile into the concrete.
In some preferred embodiments, before step S, a set of diagonal braces is installed between every two adjacent sets of vertical poles in the support to form a triangular stable structure.
In some preferred embodiments, in step S, the pile top of the uplift pile is simultaneously roughened, and a plurality of main bars on the pile top of the uplift pile are bent and bent in a direction toward the outer circumference of the pile top of the uplift pile, so that the bent portion of each group of main bars is inserted into the gap between the upper frame and the diagonal brace.
The utility model discloses technical scheme has following advantage and beneficial effect at least:
in the cylindrical support node of the utility model, the pile top of the uplift pile is supported by a group of supports, each group of top angles of the upper frame and each group of top angles of the lower frame of the support are respectively provided with a top plate and a bottom plate, the top plates support a steel column, the bottom plates are supported on the pile top of the uplift pile, main reinforcements in the uplift piles are inserted in the supports, and the lower ends of the steel columns, the supports and the uplift piles are integrally cast in a foundation pit; therefore, in the construction process, the pile top of the uplift pile is not required to be drilled, the operation is convenient, the steel column is directly supported above the support, the force of the steel column is uniformly transmitted to the pile top of the uplift pile, the supporting structure is stable, and the pouring of concrete is facilitated.
Drawings
Fig. 1 is a schematic view of the overall structure of the cylindrical support node of the present invention;
fig. 2 is a schematic structural view of an uplift pile and a bracket in the cylindrical support node of the present invention;
fig. 3 is a schematic structural view of an embedded section in the cylindrical support node of the present invention;
icon: 1-steel column, 10-embedded section, 100-bar penetrating hole, 11-ground section, 12-cross node section, 13-arc-shaped piece, 130-support frame, 2-foundation pit, 20-uplift pile, 200-main bar, 21-concrete layer, 210-first bar net layer, 211-second bar net layer, 212-vertical bar layer, 22-third bar net layer, 220-transverse bar layer, 221-longitudinal bar layer, 3-support, 30-upper frame, 31-lower frame, 32-vertical bar, 33-diagonal support piece, 34-top plate and 35-bottom plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of this application is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and be operated is not to be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1 to 3, a cylindrical support node includes a uplift pile 20 of a reinforced concrete structure preset in a foundation pit 2 and a steel column 1 disposed above the uplift pile 20; the steel column 1 is of an umbrella-shaped column structure and comprises a buried section 10, a ground section 11 and a cross node section 12 which are sequentially connected from bottom to top, a plurality of arc-shaped pieces 13 are arranged above the cross node section 12 to support the latticed shell roof, the steel column 1 is of a sectional type structure and is convenient to produce, process and hoist, a support frame 130 can be used for temporary support in the hoisting process of the arc-shaped pieces 13, and the support frame 130 is detached immediately after installation.
The cylindrical support node further comprises a support 3, as shown in fig. 2, the support 3 comprises an upper frame 30 and a lower frame 31 which are polygonal, the number of the edges of the upper frame 30 is equal to that of the edges of the lower frame 31, and the upper frame 30 and the lower frame 31 can be quadrilateral, pentagonal or hexagonal, in the embodiment, the upper frame 30 and the lower frame 31 are of a regular quadrilateral structure, the edges of the upper frame 30 and the lower frame 31 are formed by welding angle steels, the angle steels are adopted to increase the structural strength of the support 3 and the contact area with concrete, the upper frame 30 and the lower frame 31 are connected through a plurality of upright rods 32, and the upright rods 32 are also of an angle steel structure; in this embodiment, four groups of vertex angles of the upper frame 30 and four groups of vertex angles of the lower frame 31 are respectively connected in a one-to-one correspondence manner through a group of vertical rods 32, a top plate 34 is welded on each group of vertex angles of the upper frame 30, a bottom plate 35 is arranged on each group of vertex angles of the lower frame 31, and the lower end of the steel column 1 is arranged on the top plates 34, that is, the circumferential bottom plate on the column foot of the steel column 1 is welded and fixed to the top plates 34 through fillet welds.
The bottom plates 35 are supported on the pile top of the uplift pile 20, and part of the bottom surface of each group of bottom plates 34 extends out of the pile top surface of the uplift pile 20, so that the edge of the bottom plate 34 is conveniently built into concrete when the concrete is poured, and the pressure of the uplift pile 20 of the steel column 1 is partially dispersed into the concrete.
In addition, any two adjacent vertical rods 32 are connected by a set of diagonal braces 33, and the purpose of the diagonal braces 33 is to form a triangular support structure on the side of the frame 20, so as to further increase the structural strength of the support 2.
The pile top of the uplift pile 20 is reserved with a plurality of main ribs 200 extending out of the pile, the plurality of main ribs 200 are distributed on the pile top in an annular shape, the plurality of main ribs 200 in the uplift pile 20 penetrate into the support 3 along the pile top direction, namely, before the support 3 is installed, the plurality of main ribs 200 on the pile top are bent and anchored by a handheld hydraulic steel bar bending machine, and the bending angle is 90 degrees; after the bracket 3 is installed, the bent portion of the main bar 200 passes through the gap between the upper frame 30 and the diagonal brace 33 to face the outside of the contour of the bracket 3.
As shown in fig. 3, after the bracket 3 is installed, a third mesh layer 22 composed of a plurality of reinforcing steel bars horizontally penetrates through the bracket 3, the third mesh layer 22 is poured into concrete in the foundation pit 2, the third mesh layer 22 includes a transverse rib layer 220 and a longitudinal rib layer 221 which are perpendicular to each other in a horizontal plane, the transverse rib layer 220 and the longitudinal rib layer 221 are distributed up and down, the reinforcing steel bars in the third mesh layer 22 directly penetrate through a gap portion of the bracket 3, and if a reinforcing steel bar blocked by the upright rod 32 exists, the distance between the blocked reinforcing steel bar and an adjacent reinforcing steel bar is adjusted; the lower end of the steel column 1, the bracket 3 and the uplift pile 20 are all cast in the foundation pit 2 through concrete, that is, in the embodiment, the lower half section of the embedded section 10, the bracket 3, the uplift pile 20 and the third mesh layer 22 are all cast in the foundation pit.
After the pouring in the foundation pit 2 is completed, a concrete layer 21 is further poured on the outer circumferential side of the steel column 1, the concrete layer 21 is located above the foundation pit 2, a first rib mesh layer 210 and a second rib mesh layer 211 are further arranged in the concrete layer 21 around the steel column 1, and the first rib mesh layer 210 is located above the second rib mesh layer 211; the first rib mesh layer 210 and the second rib mesh layer 211 are connected through a vertical rib layer 212, and a plurality of rib penetrating holes 100 are formed in the outer circumferential surface of the steel column 1; part of the steel bars in the first mesh layer 210 penetrate through the bar penetrating holes 100 to be arranged on the outer circumferential side of the embedded section 10 in a penetrating manner, the rest of the steel bars in the first mesh layer 210 bypass the outer circumferential surface of the embedded section 10, and the steel bars in the second mesh layer 211 can be broken at the blocking position if meeting the blocking of the outer wall of the embedded section 10 and are lapped on a connector of the circumferential steel bars on the outer circumferential surface of the embedded section 10.
A construction method of a cylindrical support node comprises the following steps:
mounting the bracket 3: installing the support 3 without installing the top plate 34 on the pile top of the uplift pile 20, and inserting a plurality of main reinforcements 200 of the pile top of the uplift pile 20 into the support 3 in a penetrating way; before that, the pile top of the uplift pile 20 is polished to be flat according to the measured elevation, the contact surface of the uplift pile is chiseled, the chiseled area is not less than 75% of the contact surface, stones in the uplift pile 20 are exposed, and the treated pile top is washed clean; meanwhile, the pile top is well made waterproof, and cushion concrete is poured on the pile top.
Meanwhile, in order to effectively adjust the support 3, when machining is carried out, the length of the upright rod 32 is machined by 200mm more, except that the top plate 34 is sent to the site, the rest parts of the support 3 are integrally sent to the construction site after being machined in a factory, the elevation of the support 3 is rechecked at the construction site, the redundant part of the upright rod 32 is cut off, and the top plate 34 of the support 3 is welded on the site.
After the support 3 is installed, hoisting the steel column 1 in sections, taking the hoisting embedded section 10 as an example, hoisting and supporting the embedded section 10 on the plurality of top plates 34 by using an automobile crane, and after the hoisting is completed, welding 34 between the annular bottom plate of the column foot of the embedded section 10 and the top plates, and then loosening the hoisting tool; after the third mesh layer 22 is arranged in a penetrating manner, concrete is injected into the foundation pit 2, so that the lower end of the steel column 1, the support 3 and the uplift pile 20 are all poured into the concrete;
after the embedded foundation pit 2 is poured, the first rib mesh layer 210, the second rib mesh layer and the vertical rib layer 212 are installed according to the method, the concrete layer 21 is poured, and after the embedded section 10 is installed, the ground section 11, the cross joint section 12 and the arc-shaped part 13 are sequentially hoisted by using a truck crane.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A cylindrical support node comprises an uplift pile (20) arranged in a foundation pit (2) and a steel column (1) arranged above the uplift pile (20), and is characterized by further comprising a support (3);
the support (3) comprises an upper frame (30) and a lower frame (31) which are polygonal, and the upper frame (30) and the lower frame (31) are connected through a plurality of vertical rods (32); top plates (34) are arranged on each group of top corners of the upper frame (30), bottom plates (35) are arranged on each group of top corners of the lower frame (31), the lower ends of the steel columns (1) are arranged on the top plates (34), and the bottom plates (35) are supported on pile tops of the uplift piles (20);
a plurality of main reinforcements (200) in the uplift pile (20) are inserted into the support (3) along the pile top direction; the lower end of the steel column (1), the support (3) and the uplift pile (20) are all poured into the foundation pit (2) through concrete.
2. The cylindrical support node of claim 1, wherein: each group of vertex angles of the lower frame (31) is provided with a group of upright rods (32), and any two adjacent groups of upright rods (32) are connected through a group of diagonal braces (33).
3. The cylindrical support node of claim 2, wherein: the upper ends of the main ribs (200) are bent, and the bent parts of the main ribs penetrate through gaps between the upper frame (30) and the inclined supporting rods (33) to face the outer side of the outline of the support (3).
4. The cylindrical support node of claim 1, wherein: a third mesh layer (22) is horizontally arranged in the support (3) in a penetrating mode, and the third mesh layer (22) is poured in concrete in the foundation pit (2).
5. The cylindrical support node of claim 4, wherein: the third web layer (22) comprises a transverse web layer (220) and a longitudinal web layer (221) which are perpendicular to each other in a horizontal plane.
6. The cylindrical support node of claim 1, wherein: a concrete layer (21) is further poured on the outer circumferential side of the steel column (1), the concrete layer (21) is located above the foundation pit (2), a first rib net layer (210) and a second rib net layer (211) are further arranged in the concrete layer (21) around the steel column (1), and the first rib net layer (210) is located above the second rib net layer (211); the first rib net layer (210) and the second rib net layer (211) are connected through the vertical rib layer (212).
7. The cylindrical support node of claim 6, wherein: the outer circumferential surface of the steel column (1) is provided with a plurality of rib penetrating holes (10), and part of steel bars in the first rib net layer (210) penetrate through the rib penetrating holes (10).
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| CN202022066065.XU CN214328954U (en) | 2020-09-18 | 2020-09-18 | Cylindrical support node |
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| CN202022066065.XU CN214328954U (en) | 2020-09-18 | 2020-09-18 | Cylindrical support node |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112252353A (en) * | 2020-09-18 | 2021-01-22 | 中铁二局第四工程有限公司 | Cylindrical support node and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112252353A (en) * | 2020-09-18 | 2021-01-22 | 中铁二局第四工程有限公司 | Cylindrical support node and construction method thereof |
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