Steel column base for building construction

Abstract

The utility model provides a steel column foot for building construction, which relates to the technical field of building construction and comprises a concrete foundation and a steel column body, a plurality of steel bars are pre-buried in the concrete foundation, the top ends of the steel bars extend to the upper part, a positioning plate is welded at the bottom of the steel column body, and fastening mechanisms are arranged on the outer surfaces of the steel bars. According to the utility model, when the positioning plate at the bottom of the steel column body is connected with a reinforcing steel bar in a concrete foundation, the fastening bolt is continuously rotated, the distance between the pressing ring and the fastening bolt is continuously close, and the spring is extruded to be continuously contracted, and after the installation is completed, the elastic force generated by the spring enables the pressing ring to tightly abut against the positioning ring; in addition, the triangular blocks are difficult to separate from the clamping grooves, and meanwhile, the triangular blocks cannot separate from the clamping grooves in the anticlockwise rotating state, so that the situation that the fastening bolts are loosened due to ground vibration and the like is avoided, the firmness is very reliable, and the safety is relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a steel column base for building construction. Background Art

[0002] Building construction refers to the production activities in the implementation stage of project construction, which is the construction process of various buildings. It can also be said to be the process of turning the various lines on the design drawings into physical objects at the designated location. It includes foundation engineering construction, main structure construction, roofing engineering construction, decoration engineering construction, etc. The place where construction operations are carried out is called a building construction site or construction site, also called a construction site. Building construction is a production activity in which people use various building materials and construction machinery to carry out in a certain space and time according to a specific design blueprint to build various building products.

[0003] The steel column base structure in building construction mainly consists of a concrete foundation in the ground and a steel column. Threaded steel bars are embedded in the concrete foundation. A positioning plate is provided at the bottom of the steel column. During assembly, the positioning plate and the steel bars are fastened with bolts. However, when the existing steel column bases are connected, mainly by means of bolt fastening, the nuts on the connecting steel bars are prone to rotate and shift when the ground around the building vibrates, resulting in poor fastening and posing a great safety hazard. Therefore, in view of the above problems, we propose a new type of steel column base for building construction. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that when the existing steel column bases are connected, mainly by means of bolt fastening, the nuts on the connecting steel bars are prone to rotate and shift when the ground around the building vibrates, resulting in poor fastening and posing a great safety hazard, and to propose a steel column base for building construction.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A steel column base for building construction, including a concrete foundation and a steel column body. A plurality of steel bars are embedded in the concrete foundation and the tops of the steel bars extend upward. A positioning plate is welded to the bottom of the steel column body. A fastening mechanism is arranged on the outer surface of the steel bar. The fastening mechanism includes a positioning ring and a pressing ring. The positioning ring is welded to the top of the positioning plate. The pressing ring is sleeved on the outside of the steel bar. The bottom of the pressing ring is in close contact with the top of the positioning ring. A plurality of triangular blocks are equidistantly arranged at the bottom of the pressing ring near the edge. A plurality of card slots are equidistantly opened at the top of the positioning ring. The triangular blocks are located inside the card slots.

[0006] Furthermore, the tops of the plurality of steel bars all slide through the bottom of the positioning plate and extend upward. A friction pad is sleeved on the outer surface of the steel bar at the position below the positioning plate.

[0007] Furthermore, an adjusting bolt is threadedly connected to a position on the outer surface of the steel bar below the friction pad, and the bottom of the positioning plate and the top of the friction pad fit tightly.

[0008] Furthermore, a plurality of sliding columns are fixedly connected to the top of the positioning ring at equal distances near the edge, and springs are sleeved on the outside of the sliding columns near the bottom.

[0009] Furthermore, a fastening bolt is arranged between the top ends of the plurality of springs, a plurality of sliding holes are equidistantly penetrated through the bottom of the fastening bolt, and the outer surface of the sliding column and the inner surface wall of the sliding hole are slidably fitted.

[0010] Furthermore, outer surfaces of the plurality of fastening bolts are each sleeved with a bolt sleeve, and adjacent bolt sleeves are fixedly connected by a metal sheet.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, when the positioning plate at the bottom of the steel column body is connected to the steel bars in the concrete foundation, as the fastening bolts are continuously rotated, the distance between the pressure ring and the fastening bolts will continue to get closer and squeeze the spring to shrink continuously. After the installation is completed, the elastic force generated by the spring will make the pressure ring tightly against the positioning ring, and the triangular block is difficult to get out of the slot. At the same time, the triangular block cannot get out of the slot when it is rotated counterclockwise. Therefore, the fastening bolts will not loosen due to ground vibrations and other reasons in the steel column foot mechanism, and the firmness is very reliable and the safety is high.

[0013] 2. In the utility model, after the fastening bolts are installed, the metal sheet is taken out, and then the bolt sleeves at both ends of the metal sheet are placed on the outside of the fastening bolts. Because the fastening bolts need to be rotated during loosening, and the rotation of the fastening bolts will drive the bolt sleeves to rotate synchronously, but the distance between the two bolt sleeves is limited by the metal sheet, which makes it difficult for the fastening bolts to rotate and loosen, further improving the stability of the steel column base and ensuring the safety of building construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of a steel column foot for building construction is proposed for the utility model;

[0015] Figure 2 A front view of a steel column foot for building construction is proposed for the utility model;

[0016] Figure 3 The utility model provides a schematic diagram of a bolt sleeve structure of a steel column foot for construction;

[0017] Figure 4The structural schematic diagram of a fastening mechanism for a steel column base used in building construction is proposed for the present utility model.

[0018] Legend: 1, concrete foundation; 2, steel column body; 21, positioning plate; 3, steel bar; 31, adjusting bolt; 32, friction pad; 4, fastening mechanism; 401, positioning ring; 402, card slot; 403, fastening bolt; 404, sliding hole; 405, sliding column; 406, spring; 407, pressing ring; 408, triangular block; 5, metal sheet; 51, bolt sleeve. Specific implementation mode

[0019] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0020] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0021] Embodiment 1: As Figures 1 - 4 shown, the present utility model provides a steel column base for building construction, including a concrete foundation 1 and a steel column body 2. A plurality of steel bars 3 are embedded in the interior of the concrete foundation 1 and the tops of the steel bars 3 extend upward. A positioning plate 21 is welded to the bottom of the steel column body 2. A fastening mechanism 4 is arranged on the outer surface of the steel bar 3. The fastening mechanism 4 includes a positioning ring 401 and a pressing ring 407. The positioning ring 401 is welded to the top of the positioning plate 21. The pressing ring 407 is sleeved on the outside of the steel bar 3. The bottom of the pressing ring 407 is in close fit with the top of the positioning ring 401. A plurality of triangular blocks 408 are equidistantly arranged near the edge of the bottom of the pressing ring 407. A plurality of card slots 402 are equidistantly opened on the top of the positioning ring 401. The triangular blocks 408 are located inside the card slots 402. The tops of the plurality of steel bars 3 all slide through the bottom of the positioning plate 21 and extend upward. A friction pad 32 is sleeved on the outer surface of the steel bar 3 at the position below the positioning plate 21. An adjusting bolt 31 is threadedly connected to the outer surface of the steel bar 3 at the position below the friction pad 32. The bottom of the positioning plate 21 is in close fit with the top of the friction pad 32. A plurality of sliding columns 405 are equidistantly fixedly connected to the top of the positioning ring 401 near the edge. Springs 406 are sleeved on the outer surfaces of the sliding columns 405 near the bottom ends. A fastening bolt 403 is arranged between the tops of the plurality of springs 406. A plurality of sliding holes 404 are equidistantly formed through the bottom of the fastening bolt 403. The outer surfaces of the sliding columns 405 are in sliding fit with the inner walls of the sliding holes 404.

[0022] The effect achieved by the entire embodiment 1 is that when the steel column foot is connected during the construction process, the adjusting bolts 31 are first rotated to make the tops of all the adjusting bolts 31 at a suitable height, and then the friction pad 32 is inserted from the top of the steel bar 3, and then the positioning plate 21 at the bottom of the steel column body 2 is inserted to the outside of the steel bar 3 so that it falls on the top of the friction pad 32, and then the fastening bolts 403 are installed to the outside of the steel bar 3 by rotation. During the process, the fastening bolts 403 will gradually rotate and move downward. When the pressure ring 407 is squeezed onto the positioning ring 401 on the positioning plate 21, the distance between the pressure ring 407 and the fastening bolts 403 will be reduced and the compression spring 406 will shrink. The triangular block 408 at the bottom of the pressure ring 407 rotates in an inclined direction, so it will continuously pass through different slots 402 on the positioning ring 401. During the process, the pressure ring 407 will be continuously lifted up. When the spring 406 is compressed to a shorter length, the spring The elastic force generated by 406 will make the pressure ring 407 tightly against the positioning ring 401, and the triangular block 408 is difficult to disengage from the slot 402. At the same time, the triangular block 408 cannot disengage from the slot 402 when rotating counterclockwise. Therefore, the fastening bolt 403 will not loosen due to ground vibration and other reasons in the steel column foot mechanism. The firmness is very reliable and the safety is relatively high. The sliding column 405 and the sliding hole 404 cooperate to limit the pressure ring 407, so that the pressure ring 407 can be driven to rotate synchronously when the fastening bolt 403 rotates, and the distance between the pressure ring 407 and the fastening bolt 403 can change, so as to achieve the effect of squeezing the spring 406 to contract and accumulate potential. The friction pad 32 in the bracket of the adjusting bolt 31 and the positioning plate 21 increases friction, which can improve the firmness of the adjusting bolt 31. The adjusting bolt 31 can be adjusted in height by rotation, and is mainly used to adjust the height of the steel column body 2 and the positioning plate 21.

[0023] Example 2: Figures 1 - 4 As shown, outer surfaces of the plurality of fastening bolts 403 are all sleeved with bolt sleeves 51 , and adjacent bolt sleeves 51 are fixedly connected by a metal sheet 5 .

[0024] The effect achieved by the entire embodiment 2 is that after the fastening bolt 403 is installed, the metal sheet 5 is taken out, and then the bolt sleeves 51 at both ends of the metal sheet 5 are sleeved on the outside of the fastening bolt 403. Because the fastening bolt 403 needs to be rotated during the loosening process, and the rotation of the fastening bolt 403 will drive the bolt sleeve 51 to rotate synchronously, but the distance between the two bolt sleeves 51 is limited by the metal sheet 5, which makes it difficult for the fastening bolt 403 to rotate and loosen, further improving the stability of the steel column foot and ensuring the safety of building construction. The length of the metal sheet 5 is slightly larger than the distance between the two fastening bolts 403.

[0025] Working principle: When connecting the steel column base during construction, first rotate the adjusting bolt 31 so that the tops of all the adjusting bolts 31 are at a suitable height, then insert the friction pad 32 from the top of the steel bar 3, and then insert the positioning plate 21 at the bottom of the steel column body 2 to the outside of the steel bar 3 so that it falls on the top of the friction pad 32, and then install the fastening bolt 403 to the outside of the steel bar 3 by rotating. During the process, the fastening bolt 403 will gradually rotate and move downward. When the pressure ring 407 is squeezed onto the positioning ring 401 on the positioning plate 21, the distance between the pressure ring 407 and the fastening bolt 403 will be reduced and the compression spring 406 will shrink. The triangular block 408 at the bottom of the pressure ring 407 rotates in an inclined direction, so it will continuously pass through different slots 402 on the positioning ring 401. During the process, the pressure ring 407 will be continuously lifted up. When the spring 406 is compressed to a shorter length, However, at this time, the elastic force generated by the spring 406 will make the pressure ring 407 tightly press against the positioning ring 401, and the triangular block 408 is difficult to disengage from the slot 402. At the same time, the triangular block 408 cannot disengage from the slot 402 when rotated counterclockwise. Therefore, the steel column foot mechanism will not cause the fastening bolt 403 to loosen due to ground vibration and other reasons. The firmness is very reliable and the safety is relatively high. In addition, when the fastening bolt 403 is installed, the metal sheet 5 is taken out, and then the bolt sleeves 51 at both ends of the metal sheet 5 are sleeved on the outside of the fastening bolt 403. Because the fastening bolt 403 needs to be rotated during the loosening process, and the rotation of the fastening bolt 403 will drive the bolt sleeve 51 to rotate synchronously, but the distance between the two bolt sleeves 51 is limited by the metal sheet 5, which makes it difficult for the fastening bolt 403 to rotate and loosen, further improving the stability of the steel column foot and ensuring the safety of building construction.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A steel column foot for building construction, comprising a concrete foundation (1) and a steel column body (2), characterized in that: A plurality of steel bars (3) are pre-buried inside the concrete foundation (1), and the top ends of the steel bars (3) extend upwards; a positioning plate (21) is welded to the bottom of the steel column body (2); and a fastening mechanism (4) is provided on the outer surface of the steel bars (3); The fastening mechanism (4) comprises a positioning ring (401) and a pressure ring (407), wherein the positioning ring (401) is welded to the top of the positioning plate (21), and the pressure ring (407) is sleeved on the outside of the steel bar (3), and the bottom of the pressure ring (407) and the top of the positioning ring (401) are tightly fitted, and a plurality of triangular blocks (408) are equidistantly arranged at the bottom of the pressure ring (407) near the edge, and a plurality of slots (402) are equidistantly opened at the top of the positioning ring (401), and the triangular blocks (408) are located inside the slots (402).

2. The steel column foot for construction according to claim 1, characterized in that: The top ends of the plurality of steel bars (3) slide through the bottom of the positioning plate (21) and extend upward, and a friction pad (32) is sleeved on the outer surface of the steel bars (3) at a position below the positioning plate (21).

3. The steel column foot for construction according to claim 2, characterized in that: An adjusting bolt (31) is threadedly connected to a position on the outer surface of the steel bar (3) below the friction pad (32), and the bottom of the positioning plate (21) and the top of the friction pad (32) are tightly fitted.

4. The steel column foot for construction according to claim 3, characterized in that: A plurality of sliding columns (405) are fixedly connected to the top of the positioning ring (401) at equal intervals near the edge, and springs (406) are sleeved on the outside of the sliding columns (405) near the bottom.

5. The steel column foot for construction according to claim 4, characterized in that: A fastening bolt (403) is arranged between the top ends of the plurality of springs (406), and a plurality of sliding holes (404) are equidistantly penetrated through the bottom of the fastening bolt (403), and the outer surface of the sliding column (405) and the inner surface wall of the sliding hole (404) are slidably fitted.

6. The steel column foot for construction according to claim 5, characterized in that: The outer surfaces of the plurality of fastening bolts (403) are each sleeved with a bolt sleeve (51), and adjacent bolt sleeves (51) are fixedly connected via a metal sheet (5).

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