Column foot connecting structure of section steel column
By pre-embedding of the advance brackets in the engineering piles and welding the steel columns, combined with the cover of concrete blocks, the structural layout limitations and construction problems caused by the bolt connection of the steel column are solved, and more efficient and stronger column foot connections are achieved.
Patent Information
- Application Number
- CN202421618855.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-09
AI Technical Summary
The existing steel columns are connected to the engineering piles by bolts, resulting in limited structural layout, long construction period, high cost, low bending and shear strength, and affecting the integrity of the structural appearance.
The advance bracket is used to pre-embed in more than three engineering piles, and the welded steel columns are on the advance bracket, and concrete blocks are covered at the foot of the steel column. Through the pre-embedded connection between the advance bracket and the engineering pile, the column foot of the steel column is realized.
It improves the structural layout flexibility of the steel column, shortens the construction cycle, reduces the cost and construction difficulty, enhances the bending and shear strength at the column feet, and avoids the impact of bolt connections on the structural appearance.
Smart Images
Figure CN222923927U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, and particularly relates to a connecting structure for the column foot of a profiled steel column. Background Art
[0002] The vertical structural columns in the basement are usually formed by constructing a profiled steel column with concrete wrapped outside. The profiled steel column is connected to the engineering pile through the flange at its lower end and several bolts thereon. The connection node between the profiled steel column and the engineering pile is a bolt connection and is located above the concrete foundation. Its disadvantages are as follows: on the one hand, the bolt connection between the profiled steel column and the engineering pile results in a large amount of bolt installation work, a long construction period, and a high cost of bolts; on the other hand, the flexural and shear strengths at the bolt connection node are relatively low; thirdly, the bolt connection node is located above the concrete foundation, affecting the overall structure of the structural shape; fourthly, the profiled steel column can only be arranged on the engineering pile, affecting the structural layout of the vertical structural column. Content of the Utility Model
[0003] The purpose of the utility model is to provide a connecting structure for the column foot of a profiled steel column to solve the problems that the structural layout of the profiled steel column is limited due to the bolt connection to the engineering pile, the bolt connection has a large amount of installation work, a long construction period, a high cost, low flexural and shear strengths at the bolt connection node, and the bolt connection node located on the concrete foundation affects the integrity of the structural shape.
[0004] To solve the above technical problems, the technical solution provided by the utility model is: a connecting structure for the column foot of a profiled steel column, including an advanced support vertically embedded in more than three engineering piles, a profiled steel column welded to the advanced support, the profiled steel column is vertically arranged on the foundation at any position within the range of the advanced support, and a concrete block is poured at the column foot of the profiled steel column to cover the advanced support and the connected engineering piles.
[0005] Furthermore, for the connecting structure for the column foot of a profiled steel column provided by the utility model, a plurality of concrete cushion blocks are dispersedly arranged between the profiled steel column and the foundation.
[0006] Furthermore, for the connecting structure for the column foot of a profiled steel column provided by the utility model, the advanced support includes a pre - installed vertical member inserted into the engineering pile and pre - embedded by the concrete in the pile, and a plurality of later - installed horizontal members and / or a plurality of later - installed inclined members welded to the pre - installed vertical member and the profiled steel column.
[0007] Furthermore, for the connecting structure for the column foot of a profiled steel column provided by the utility model, the pre - installed vertical member, the later - installed horizontal members and the later - installed inclined members are all profiled steels.
[0008] Furthermore, for the connecting structure for the column foot of a profiled steel column provided by the utility model, the profiled steel is I - shaped steel, H - shaped steel, channel steel or angle steel.
[0009] Furthermore, in the steel column base connection structure provided by the utility model, the engineering piles are three piles arranged in a triangle, and the concrete block is a triangular pyramid with chamfered corners.
[0010] Furthermore, in the steel column base connection structure provided by the utility model, the engineering piles are four piles distributed in a rectangular shape, and the concrete block is a cube or a cuboid.
[0011] Furthermore, in the steel column base connection structure provided by the utility model, the engineering piles are six arranged in rows and columns, and the concrete blocks are regular hexagonal blocks.
[0012] Furthermore, in the steel column base connection structure provided by the utility model, the engineering piles are six in two groups of rows, and the bases of the steel columns in the two groups of rows of engineering piles share a common concrete block, which is a cube or a cuboid.
[0013] Furthermore, the column base connection structure of the steel column provided by the utility model also includes a support plate horizontally arranged at the lower end of the preliminary vertical member, and the support plate is located in the engineering pile and connected to the steel cage inside the engineering pile.
[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0015] The column foot connection structure of the steel column provided by the utility model sets the column foot of the steel column at any position of the foundation within the range of the advance bracket, so that the structural layout of the steel column is not restricted; by using the advance bracket to be pre-buried in more than three engineering piles, and then welding the steel column to the advance bracket, the rapidity of the column foot connection of the steel column is improved, the engineering workload of the traditional bolt connection is reduced, the construction efficiency is improved, the construction period is shortened, and the installation cost and construction difficulty are reduced; by covering the advance bracket and the engineering pile connected to the concrete block cast at the column foot of the steel column, the pre-buried connection of the column foot of the steel column is realized, and the bending and shear strength at the column foot of the steel column is passed. The column foot connection structure of the steel column does not use bolt connection, which avoids the leakage of bolts and affects the integrity of the structural appearance.
[0016] The utility model provides a connection structure for the base of a steel column, which utilizes an advance bracket to weld a steel column, and casts the steel column and the advance bracket as a whole at the base, so that the steel column and the advance bracket are covered and buried by a concrete block, thereby improving the bearing capacity and durability of the base of the steel column. That is, the advance bracket is buried in the concrete block at the base of the steel column by pouring concrete, so that the steel column and the advance bracket can better resist corrosion and the influence of the external environment, thereby improving the durability and service life of the steel column at the base.
[0017] The utility model provides a steel column foot connection structure that utilizes an advance bracket to weld the steel column, and the advance bracket is pre-buried in the engineering pile, which reduces the construction difficulty of connecting the steel column and the advance bracket, and reduces material cost, time cost and labor cost.
[0018] The column foot connection structure of the steel column provided by the utility model enables the position of the steel column to be flexibly arranged through the advance bracket, and has the advantage of a wider range of application of the structural design. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the elevation structure of the connection structure of the column base of the steel column;
[0020] Figure 2 It is a schematic diagram of the elevation structure of the column foot connection structure of the steel column without the construction of concrete blocks;
[0021] Figure 3 It is a planar structural diagram of the connection structure of the steel column foot of three engineering piles with pre-embedded advanced brackets in a triangular distribution;
[0022] Figure 4 It is a planar structural diagram of the connection structure of the steel column foot of the pre-embedded advance bracket of four engineering piles in a square distribution;
[0023] Figure 5 It is a planar structural diagram of the connection structure of the steel column foot of the pre-buried advance bracket with six engineering piles in a regular hexagonal distribution;
[0024] Figure 6 It is a planar structural diagram of the connection structure of the steel column foot of the pre-buried advance bracket with two groups of six engineering piles arranged in rows;
[0025] As shown in the figure:
[0026] 100. Connection structure of steel column base;
[0027] 110. Engineering piles, 111. Concrete in piles;
[0028] 120, advanced bracket, 121, early vertical member, 122, late horizontal member, 123, late oblique member;
[0029] 130. Steel column;
[0030] 140. Foundation;
[0031] 150. Concrete pad;
[0032] 160. Concrete blocks;
[0033] 170. Pallet. DETAILED DESCRIPTION
[0034] The utility model is described in detail below in conjunction with the accompanying drawings: According to the following description, the advantages and features of the utility model will be more clearly understood. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model.
[0035] Please refer to Figures 1 to 6 The embodiment of the utility model provides a steel column foot connection structure 100, including an advance bracket 120 vertically pre-buried in three or more engineering piles 110, a steel column 130 welded on the advance bracket 120, the steel column 130 is vertically arranged on a foundation 140 at any position within the range of the advance bracket 120, and a concrete block 160 is cast at the column foot of the steel column 130 covering the advance bracket 120 and the engineering piles 110 connected thereto. The foundation 140 can be various foundation structures in the form of a foundation base plate, and the engineering piles 110 can be bored cast-in-place piles. In order to realize the early construction of the advance bracket 120 and the reliable connection between the advance bracket 120 and the steel column 130, the advance bracket 120 may include an advance vertical member 121 inserted into the engineering pile 110 and pre-buried in the pile concrete 111 therein, and a plurality of later horizontal members 122 welded to the advance vertical member 121 and the steel column 130; and may also include a plurality of later oblique members 123 welded to the advance vertical member 121 and the steel column 130. The later horizontal members 122 and the later oblique members 123 are used to realize the reliable connection of the steel column 130 at the column foot.
[0036] The steel column foot connection structure 100 provided by the embodiment of the utility model sets the foot of the steel column 130 at any position of the foundation 140 within the range of the advance bracket 120, so that the structural layout of the steel column 130 is not restricted; by pre-embedding the advance bracket 120 in more than three engineering piles 110, and then welding the steel column 130 to the advance bracket 120, on the one hand, the rapidity of the foot connection of the steel column 130 is improved, the amount of engineering work of traditional bolt connection is reduced, the construction efficiency is improved, the construction period is shortened, the installation cost and the construction difficulty are reduced, and on the other hand, the advance bracket 120 and the steel column 130 can be connected before or after the construction of the foundation 140, which facilitates the construction of the steel column 130; the concrete block 160 cast at the foot of the steel column 130 by covering the advance bracket 120 and the engineering piles 110 connected thereto realizes the pre-embedded connection of the foot of the steel column 130, and passes the bending and shear strength at the foot of the steel column 130. The basement steel column 130 column foot connection structure 100 does not use bolt connection, which avoids the bolts leaking out and affecting the integrity of the structural appearance.
[0037] The column foot connection structure 100 of the steel column provided by the embodiment of the utility model utilizes the advanced bracket 120 to weld the steel column 130, and integrally casts the advanced bracket 120 at the column foot of the steel column 130, so that the steel column 130 and the advanced bracket 120 are covered and buried by the concrete block 160, thereby improving the bearing capacity and durability at the column foot of the steel column 130, that is, the advanced bracket 120 is buried in the concrete block 160 by concrete casting at the column foot of the steel column 130, so that the steel column 130 and the advanced bracket 120 can better resist corrosion and the influence of the external environment, thereby improving the durability and service life of the steel column 130 at the column foot. The concrete pad 150 can be flush with the top of the engineering pile 110, which is used to bear and transfer the upper load of the steel column 130, and play a supporting and stabilizing role.
[0038] The steel column foot connection structure 100 provided by the embodiment of the utility model utilizes the advanced bracket 120 to weld the steel column 130, and the advanced bracket 120 is pre-buried in the engineering pile 110, which reduces the construction difficulty of connecting the steel column 130 with the advanced bracket 120, and reduces the material cost, time cost and labor cost. It avoids the need for the steel column 130 to be set on the engineering pile 110 and connected by bolts.
[0039] The steel column foot connection structure 100 provided in the embodiment of the utility model enables the position of the steel column 130 to be flexibly arranged through the advance bracket 120, and has the advantage of a wider range of application of the structural design.
[0040] Please refer to Figures 1 to 2 In order to avoid the gap between the steel column 130 and the foundation 140 and thus affect the structural stability of the steel column 130, the steel column foot connection structure 100 provided by the embodiment of the utility model has a plurality of concrete pads 150 dispersedly arranged between the steel column 130 and the foundation 140. The concrete blocks 150 can fill the gap and adjust the elevation of the steel column 130 on the one hand; on the other hand, they can disperse the upper load of the steel column 130 and prevent the upper load of the steel column 130 from causing excessive stress concentration on the foundation 140 and damaging the foundation 140; thereby improving the structural stability of the steel column 130 and its foot connection structure 100.
[0041] In order to improve the connection strength of the steel column 130, the steel column base connection structure 100 provided in the embodiment of the utility model, the early vertical member 121, the later horizontal member 122 and the later diagonal member 123 can all be steel or steel assemblies such as I-beams, H-shaped steel channels or angle steels.
[0042] Please refer to Figure 3In the steel column base connection structure 100 provided by the embodiment of the utility model, the engineering piles 110 may be three piles arranged in a triangle, and the concrete block 160 may be a triangular pyramid with chamfered corners.
[0043] Please refer to Figure 4 In the steel column foot connection structure 100 provided by the embodiment of the utility model, the engineering piles 110 may be four piles in a rectangular distribution, and the concrete block 160 may be a cube or a cuboid. The rectangular distribution includes a rectangular and a square distribution.
[0044] Please refer to Figure 5 In the steel column base connection structure 100 provided by the embodiment of the utility model, the engineering piles 110 are six piles distributed in a regular hexagon, and the concrete block 160 is a regular hexagonal block.
[0045] Please refer to Figure 6 The steel column base connection structure 100 provided by the embodiment of the utility model comprises six engineering piles 110 distributed in two groups of rows, and the bases of the steel columns 130 in the two groups of engineering piles 110 share a common concrete block 160, which is a cube or a cuboid.
[0046] The arrangement position of the steel column 130 is not limited to the center of the enclosed shape of more than three engineering piles 110, but can be any position of the enclosed shape. The steel column 130 is not limited to a circular steel pipe column, but can also be a square pipe column or other composite structure columns.
[0047] The steel column foot connection structure 100 provided in the embodiment of the utility model, the pre-embedded construction of the advance vertical member 121 of the advance bracket 120 and the engineering pile 110 can be a pre-embedded integrated structure, and can also be constructed on-site.
[0048] Please refer to Figures 1 to 2 In order to prevent the advance bracket 120 from sinking when pouring concrete of the engineering pile 110, the steel column foot connection structure 100 provided by the embodiment of the utility model also includes a support plate 170 horizontally arranged at the lower end of the advance vertical member 121, and the support plate 170 is located in the engineering pile 110 and connected to the steel cage (not shown) in the pile of the engineering pile 110. The advance bracket 120 is fixed and supported by the support plate 170 to prevent the advance bracket 120 from sinking due to the influence of gravity when buried in the engineering pile 110. At this time, the support plate 170 and the steel cage in the pile can be connected before lifting. Among them, the support plate 170 and the steel cage in the pile can be connected by U-bolts or welded.
[0049] The construction method of the steel column foot connection structure 100 provided in the embodiment of the utility model may include:
[0050] Step S1 , pre-embed the advance vertical member 121 of the advance support 120 in the engineering pile 110 .
[0051] Step S2, constructing the foundation 140.
[0052] Step S3 , placing a concrete pad 150 on the foundation 140 at the location where the steel column 130 is to be installed.
[0053] Step S4 , placing the steel column 130 on the concrete pad 150 .
[0054] Step S5, welding the later horizontal member 122 and the later oblique member 123 between the earlier vertical member 121 of the advanced support 120 and the placed steel column 130.
[0055] Step S6 , pouring concrete at the base of the steel column 130 to cover the advanced support 120 and the engineering piles 110 connected thereto to form a concrete block 160 .
[0056] The steel column foot connection structure 100 provided in the embodiment of the utility model is an anchoring structure, which can improve the strength, reliability and stability of the connection of the steel column 130.
[0057] The present utility model is not limited to the above-mentioned specific implementation modes. Obviously, the above-mentioned embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the described embodiments of the present utility model belong to the scope of protection of the present utility model. Those skilled in the art can make other levels of modifications and changes to the present utility model. In this way, if these modifications and changes of the present utility model fall within the scope of the claims of the present utility model, the present utility model is also intended to include these changes and changes.
Claims
1. A steel column foot connection structure, characterized in that: It includes an advance bracket vertically embedded in more than three engineering piles, a steel column welded to the advance bracket, the steel column is vertically arranged on the foundation at any position within the range of the advance bracket, and a concrete block covering the advance bracket and the engineering piles connected thereto is cast at the column foot of the steel column.
2. The connection structure of the steel column base according to claim 1 is characterized in that: A plurality of concrete pads are dispersedly arranged between the steel column and the foundation.
3. The steel column base connection structure according to claim 1, characterized in that: The advanced support comprises an early vertical member inserted into the engineering pile and embedded in the concrete of the pile, and a plurality of later transverse members and / or a plurality of later oblique members welded to the early vertical member and the steel column.
4. The steel column base connection structure according to claim 3 is characterized in that: The early vertical members, the later horizontal members and the later diagonal members are all steel sections.
5. The steel column base connection structure according to claim 4, characterized in that: The steel section is an I-beam, an H-beam, a channel steel or an angle steel.
6. The steel column base connection structure according to claim 3, characterized in that: The engineering piles are three piles arranged in a triangle, and the concrete block is a triangular pyramid with chamfered corners.
7. The steel column base connection structure according to claim 3, characterized in that: The engineering piles are four in rectangular distribution, and the concrete block is a cube or a cuboid.
8. The steel column base connection structure according to claim 3, characterized in that: The engineering piles are six in number and are arranged in rows and columns, and the concrete blocks are regular hexagonal blocks.
9. The steel column base connection structure according to claim 3, characterized in that: The engineering piles are six in number and are distributed in two groups of rows. The column bases of the steel columns in the two groups of rows of engineering piles share a common concrete block, which is a cube or a cuboid.
10. The steel column base connection structure according to claim 3, characterized in that: It also includes a support plate horizontally arranged at the lower end of the preliminary vertical member, wherein the support plate is located in the engineering pile and connected to the steel cage inside the engineering pile.