Large-section steel-concrete column-steel truss connection structure

Abstract

The present invention discloses a large-section steel-concrete column-steel truss connection structure, comprising: a steel-concrete column, a steel pipe column, at least one first steel truss and at least one second steel truss. The bottom of the steel pipe column is vertically inserted and fixed inside the steel-concrete column, and a plurality of steel partitions are arranged inside the steel pipe column. At least one first steel truss is fixedly connected to one side of the top of the steel pipe column. At least one second steel truss is fixedly connected to one side of the middle of the steel pipe column, and the second steel truss is located above the steel-concrete column. Concrete is poured in the steel pipe column. Thus, the large-section steel-concrete column-steel truss connection structure of the present invention has a simple structure, clear and reasonable force, reduces the difficulty of positioning components, simplifies the construction process, and improves construction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a large-section steel concrete column-steel truss connection structure. Background Art

[0002] In the existing steel-concrete column-steel truss beam connection node, due to the large height of the column, the roof truss should be rigidly connected to the structural column as a whole to reduce the calculated length of the structural column. However, if the connection between the upper and lower chords and the diagonal web and the structural column is treated as a rigid connection, the following difficulties will arise:

[0003] 1. The steel tube concrete column runs through the upper and lower chords of the truss and the web members to the upper chord floor. The node structure is complex, the force transmission is not clear, and the positioning of the components is difficult.

[0004] 2. There are a large number of cases where the upper and lower flanges of steel truss beams collide with the longitudinal reinforcement of steel-concrete columns, which makes it difficult to arrange the steel bars in the core area of ​​the node. At the same time, it is necessary to open holes in the steel to reduce the effective cross-section of the steel, resulting in local stress concentration at the openings of the steel.

[0005] 3. Since a large number of horizontal diaphragms penetrate into the steel-concrete columns, cavities are formed inside the steel-concrete columns, trapping air, which easily leads to loose concrete pouring at the head of the steel-concrete columns;

[0006] 4. In order to slope the structure, the upper and lower chord steel truss beams have a certain slope. If the upper and lower flanges of the steel truss beams at the ends of the steel-concrete columns are horizontal, there will be an angle with the connecting flanges, and the connection with the steel frame will lead to difficulties in flange alignment and positioning. If the upper and lower flanges of the steel truss beams at the ends of the steel-concrete columns are not horizontal, there will be an angle between the cut longitudinal steel bars and the steel bar connectors, which will lead to difficulties in connection. The construction is difficult, the construction speed is slow, and the construction quality problems are prominent.

[0007] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0008] The purpose of the present invention is to provide a large-section steel concrete column-steel truss connection structure with a simple structure, clear and reasonable force, reduced difficulty in component positioning, simplified construction procedures, and improved construction efficiency.

[0009] To achieve the above-mentioned object, the present invention provides a large-section steel-concrete column-steel truss connection structure, comprising: a steel-concrete column, a steel pipe column, at least one first steel truss and at least one second steel truss. The bottom of the steel pipe column is vertically inserted and fixed inside the steel-concrete column, and a plurality of steel partitions are arranged inside the steel pipe column. At least one first steel truss is fixedly connected to one side of the top of the steel pipe column. At least one second steel truss is fixedly connected to one side of the middle of the steel pipe column, and the second steel truss is located above the steel-concrete column. Concrete is poured in the steel pipe column.

[0010] In one embodiment of the present invention, the large-section steel concrete column-steel truss connection structure further includes at least one third steel truss, which is fixedly connected to the upper part of the steel pipe column in a downwardly inclined manner, and the third steel truss is located below the first steel truss.

[0011] In one embodiment of the present invention, the large-section steel concrete column-steel truss connection structure also includes at least one fourth steel truss, which is fixedly connected to the middle part of the steel pipe column in an upward inclined manner, and the fourth steel truss is located between the second steel truss and the third steel truss.

[0012] In one embodiment of the present invention, the cross section of the steel pipe column is rectangular or circular.

[0013] In one embodiment of the present invention, two through holes are opened at the center of each steel partition, a plurality of steel partitions are arranged inside the steel pipe column at intervals, and concrete is poured inside the steel pipe column and the through holes.

[0014] In one embodiment of the present invention, a plurality of longitudinal bars are provided on the steel pipe column.

[0015] In one embodiment of the present invention, the portion of the steel pipe column inserted into the steel concrete column is a gradual section, and the bottom area of ​​the steel pipe column is smaller than the top area of ​​the steel pipe column.

[0016] In one embodiment of the present invention, the number of the at least one first steel truss, the at least one second steel truss, the at least one third steel truss and the at least one fourth steel truss are all two.

[0017] In one embodiment of the present invention, at least one first steel truss, at least one second steel truss, at least one third steel truss and at least one fourth steel truss are all H-shaped steel trusses.

[0018] In one embodiment of the present invention, the upper chord beam is hinged to the first steel truss through a connecting steel plate, the lower chord beam is hinged to the second steel truss through a connecting steel plate, the upper diagonal web member is hinged to the third steel truss through a connecting steel plate, and the lower diagonal web member is hinged to the fourth steel truss through a connecting steel plate.

[0019] Compared with the prior art, the large-section steel concrete column-steel truss connection structure according to the present invention has a simple structure, clear and reasonable force, reduces the difficulty of component positioning, simplifies the construction process, and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a portion of a large-section steel concrete column-steel truss connection structure according to an embodiment of the present invention;

[0021] Figure 2 is another partial structural schematic diagram of a large-section steel concrete column-steel truss connection structure according to an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the three-dimensional structure of a large-section steel concrete column-steel truss connection structure according to an embodiment of the present invention;

[0023] Figure 4 is a schematic diagram of the installation structure of a large-section steel concrete column-steel truss connection structure according to an embodiment of the present invention;

[0024] Figure 5 is a structural schematic diagram of a steel diaphragm of a large-section steel concrete column-steel truss connection structure according to an embodiment of the present invention;

[0025] Figure 6 It is a schematic diagram of the partial structure of a large-section steel concrete column-steel truss connection structure according to an embodiment of the present invention.

[0026] Description of main reference numerals:

[0027] 1-steel concrete column, 2-steel pipe column, 3-steel partition, 4-first steel truss, 5-second steel truss, 6-third steel truss, 7-fourth steel truss, 8-gradual section, 9-concrete, 10-through hole. DETAILED DESCRIPTION

[0028] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0029] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0030] Figure 1 It is a schematic diagram of a part of the structure of a large-section steel concrete column-steel truss connection structure according to one embodiment of the present invention. Figure 2It is another partial structural schematic diagram of a large-section steel concrete column-steel truss connection structure according to an embodiment of the present invention. Figure 3 It is a three-dimensional structural schematic diagram of a large-section steel concrete column-steel truss connection structure according to an embodiment of the present invention. Figure 4 It is a schematic diagram of the installation structure of a large-section steel concrete column-steel truss connection structure according to an embodiment of the present invention. Figure 5 It is a structural schematic diagram of a steel diaphragm of a large-section steel concrete column-steel truss connection structure according to an embodiment of the present invention. Figure 6 It is a schematic diagram of the partial structure of a large-section steel concrete column-steel truss connection structure according to an embodiment of the present invention.

[0031] like Figures 1 to 6 As shown, a large-section steel-concrete column-steel truss connection structure according to a preferred embodiment of the present invention includes: a steel-concrete column 1, a steel pipe column 2, at least one first steel truss 4 and at least one second steel truss 5. The bottom of the steel pipe column 2 is vertically inserted and fixed in the interior of the steel-concrete column 1, and a plurality of steel partitions 3 are arranged in the interior of the steel pipe column 2. At least one first steel truss 4 is fixedly connected to one side of the top of the steel pipe column 2. At least one second steel truss 5 is fixedly connected to one side of the middle of the steel pipe column 2, and the second steel truss 5 is located above the steel-concrete column 1. Concrete 9 is poured in the steel pipe column 2, and pouring holes are opened on the steel pipe column 2.

[0032] In one embodiment of the present invention, the large-section steel concrete column-steel truss connection structure also includes at least one third steel truss 6, which is fixedly connected to the upper part of the steel pipe column 2 in a downwardly inclined manner, and the third steel truss 6 is located below the first steel truss 4.

[0033] In one embodiment of the present invention, the large-section steel concrete column-steel truss connection structure also includes at least one fourth steel truss 7, which is fixedly connected to the middle part of the steel pipe column 2 in an upward inclined manner, and the fourth steel truss 7 is located between the second steel truss 5 and the third steel truss 6.

[0034] In one embodiment of the present invention, the cross section of the steel pipe column 2 is rectangular or circular.

[0035] In one embodiment of the present invention, two through holes 10 are opened at the center of each steel partition 3 , a plurality of steel partitions 3 are arranged inside the steel pipe column 2 at intervals, and concrete 9 is poured inside the steel pipe column 2 and the through holes 10 .

[0036] In one embodiment of the present invention, a plurality of longitudinal bars are provided on the steel pipe column 2 .

[0037] In one embodiment of the present invention, the portion of the steel pipe column 2 inserted into the steel concrete column 1 is a gradual section 8 , and the bottom area of ​​the steel pipe column 2 is smaller than the top area of ​​the steel pipe column 2 .

[0038] In one embodiment of the present invention, the number of the at least one first steel truss 4 , the at least one second steel truss 5 , the at least one third steel truss 6 and the at least one fourth steel truss 7 are all two.

[0039] In one embodiment of the present invention, at least one first steel truss 4 , at least one second steel truss 5 , at least one third steel truss 6 and at least one fourth steel truss 7 are all H-shaped steel trusses.

[0040] In one embodiment of the present invention, the upper chord beam is hinged to the first steel truss 4 through a connecting steel plate, the lower chord beam is hinged to the second steel truss 5 through a connecting steel plate, the upper diagonal web member is hinged to the third steel truss 6 through a connecting steel plate, and the lower diagonal web member is hinged to the fourth steel truss 7 through a connecting steel plate.

[0041] In practical applications, the large-section steel concrete column-steel truss connection structure of the present invention changes the steel concrete column 1 in the core area of ​​the node into a steel tube concrete 9 column (steel tube column 2). At the same time, in order to consider the continuity of the structural column and ensure that there is no sudden change in stiffness between structural columns of different structures, a gradient section 8 is set between the steel tube concrete 9 in the node area and the steel concrete 9 in the non-node area. The cross-shaped steel section in the gradient section 8 gradually increases, and gradually becomes a rectangular section in the node area, and there are multiple steel partitions 3 inside the rectangle. Concrete 9 is no longer poured around the steel pipe in the node area, but only the core concrete 9 inside the pipe is poured, that is, a four-cavity steel tube concrete 9 column is formed at the top of the column. After the top of the column is changed to steel tube concrete 9, the connection structure between the steel truss beam and the structural column is greatly simplified, eliminating a lot of reinforcing bar and welding work, speeding up the construction progress, and greatly facilitating the pouring of concrete 9 and ensuring the pouring quality. The cross-sectional dimensions of the steel concrete column 1 (steel tube column 2) are 2000mm×2000mm, the cross-sectional dimensions of the rectangular steel tube concrete 9 at the top of the column are 1400mm×1400mm×40mm×40mm, and the length of the gradient section 8 is 5.0m.

[0042] In summary, the large-section steel-concrete column-steel truss connection structure of the present invention has a simple structure and clear and reasonable force. By optimizing the force form and structural form of the steel-concrete column 1-steel truss beam connection node (specifically: changing the steel-concrete column 1 in the core area of ​​the node into a steel tube concrete column 9), the node force path is simplified and clarified, the difficulty of component positioning is reduced, the steel perforation construction is eliminated, and the number of horizontal cross diaphragms of the steel column is reduced, thereby reducing the complexity of the node, simplifying the construction process, and improving the construction efficiency.

[0043] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

Claims

1. A large-section steel-concrete column-steel truss connection structure, characterized in that: include: Steel concrete columns; A steel pipe column, the bottom of which is vertically inserted and fixed inside the steel concrete column, and a plurality of steel partitions are arranged inside the steel pipe column; at least one first steel truss fixedly connected to one side of the top of the steel pipe column; as well as At least one second steel truss is fixedly connected to one side of the middle portion of the steel pipe column, and the second steel truss is located above the steel concrete column; Wherein, concrete is poured into the steel pipe column; Wherein, at least one third steel truss is further included, which is fixedly connected to the upper part of the steel pipe column in a downwardly inclined manner, and the third steel truss is located below the first steel truss; Wherein, it further comprises at least one fourth steel truss, which is fixedly connected to the middle part of the steel pipe column in an upwardly inclined manner, and the fourth steel truss is located between the second steel truss and the third steel truss; Wherein, two through holes are opened at the center of each of the steel partitions, the multiple steel partitions are arranged inside the steel pipe column at intervals, and the concrete is poured inside the steel pipe column and the through holes; Wherein, the portion of the steel pipe column inserted into the steel concrete column is a gradual section, and the bottom area of ​​the steel pipe column is smaller than the top area of ​​the steel pipe column; Wherein, the at least one first steel truss, the at least one second steel truss, the at least one third steel truss and the at least one fourth steel truss are all H-shaped steel trusses; Among them, the upper chord beam is hinged to the first steel truss through a connecting steel plate, the lower chord beam is hinged to the second steel truss through a connecting steel plate, the upper diagonal web member is hinged to the third steel truss through a connecting steel plate, and the lower diagonal web member is hinged to the fourth steel truss through a connecting steel plate.

2. The large-section steel concrete column-steel truss connection structure according to claim 1, characterized in that: The cross section of the steel pipe column is rectangular or circular.

3. The large-section steel concrete column-steel truss connection structure according to claim 1, characterized in that: A plurality of longitudinal reinforcements are arranged on the steel pipe column.

4. The large-section steel concrete column-steel truss connection structure according to claim 1, characterized in that: The number of the at least one first steel truss, the at least one second steel truss, the at least one third steel truss and the at least one fourth steel truss are all two.

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