A herringbone rigid column base structure and construction method thereof

Abstract

The present invention discloses a herringbone rigid column base structure and its construction method. The column base structure comprises two foundation columns corresponding to the two column bases of the herringbone column, and a foundation beam connected between the two foundation columns. The foundation columns are rigid structures, including steel columns. The foundation beam is a reinforced concrete structure, and the main reinforcement of the foundation beam is welded to prefabricated anchor plates welded to the two steel columns. By designing a rigid column base structure and employing a combination of foundation columns and foundation beams, the present invention improves the bearing capacity and integrity of the column base structure, as well as the bearing strength of the column base structure. Furthermore, a construction method is provided to enable the structure to be efficiently implemented in practical applications.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to a herringbone rigid column base structure and a construction method thereof. Background Art

[0002] Currently, large-scale exhibition-type construction projects often utilize single-story, long-span steel structures, leveraging the high strength of steel structures to achieve large spans and large spaces. These structures primarily utilize large steel columns as vertical support structures, which are arranged in a herringbone configuration and stabilized by double column feet. As building height increases, the cross-sectional dimensions and deadweight of the steel columns increase. Conventional reinforced concrete column footings, constructed with embedded components, rely solely on the bond between the embedded components and the concrete, resulting in limited strength and a minimal safety margin. Therefore, a column footing structure is needed that meets the load-bearing requirements of herringbone columns while also possessing high structural strength, simplicity, and affordability. Summary of the Invention

[0003] The purpose of the present invention is to provide a large-sized herringbone column rigid column base structure and a construction method thereof, so as to meet the bearing capacity requirements of the herringbone column, and at the same time provide a construction method thereof, so as to achieve a simple column base structure and a convenient and reasonable construction process.

[0004] In order to achieve the technical effect of the present invention, the first aspect of the present invention provides a herringbone rigid column base structure, which includes two foundation columns corresponding to the positions of the two column bases of the herringbone column and a foundation beam connected between the two foundation columns; the foundation columns are rigid structures, including steel columns; the foundation beam is a reinforced concrete structure, and the main reinforcement of the foundation beam is welded to the anchor plate parts prefabricated and welded in advance on the two steel columns.

[0005] As an implementation scheme of the herringbone column base structure of the present invention, the bottom and top of the steel column are respectively welded with a bottom plate and a top plate, and stiffening plates are respectively welded between the steel column and the bottom plate and the top plate, and the stiffening plates are perpendicular to the bottom plate or the top plate.

[0006] As an implementation method of the herringbone column base structure of the present invention, the base plate is pre-fixed at the two column bases of the herringbone column by anchor bolts and matching nuts. Holes for the anchor bolts to pass through are opened on the base plate, and concrete is poured at the anchor bolt positions.

[0007] As an implementation method of the herringbone column base structure of the present invention, the vertical reinforcement of the foundation column is arranged around the steel column, and the lower ends of the vertical reinforcement are bent and anchored at the two column bases of the herringbone column.

[0008] As an implementation scheme of the herringbone rigid column base structure of the present invention, the steel column is an I-beam with an I-shaped cross-section, the anchor plate is a rectangular steel plate and the width is suitable for the spacing between the two wing plates of the I-beam, and the three sides of the rectangular steel plate are respectively welded to the web and two wing plates of the I-beam.

[0009] As an embodiment of the herringbone column base structure of the present invention, each of the steel frame columns is welded with at least two anchor plates of main reinforcement corresponding to the positions of the upper and lower reinforcements of the foundation beam.

[0010] As an embodiment of the herringbone rigid column base structure of the present invention, a reinforcement plate is welded on the other side of the web symmetrically to the anchor plate.

[0011] As an implementation of the herringbone rigid column base structure of the present invention, the foundation beam is located above the middle of the foundation column.

[0012] A second aspect of the present invention provides a construction method for a herringbone rigid column base structure, comprising the steps of:

[0013] Corresponding to the two column feet of the herringbone column, two foundation column steel frame anchor bolts and foundation column vertical reinforcement are pre-embedded;

[0014] After the concrete at the anchor bolts is poured and the strength reaches the design requirements, two steel columns of the foundation columns are installed on the anchor bolts;

[0015] After the two steel columns are installed, the foundation beam reinforcement is tied between the two steel columns, the foundation beam main reinforcement is welded to the anchor plates prefabricated and welded on the two steel columns, and then the foundation beam stirrups are tied;

[0016] Tie foundation column reinforcement;

[0017] After the reinforcement is tied, the formwork is set up;

[0018] Pour the concrete of foundation columns and foundation beams and maintain them to complete the construction of the rigid column base structure.

[0019] As an implementation method of the construction method of the herringbone rigid column base structure of the present invention, the bottom and top of the steel column are respectively welded with a bottom plate and a top plate, and stiffening plates are respectively welded between the steel column and the bottom plate and the top plate. The stiffening plates are perpendicular to the bottom plate or the top plate, and holes are opened on the bottom plate for the anchor bolts to pass through.

[0020] The present invention improves the bearing capacity and integrity of the column base structure by designing a rigid column base structure and adopting a combination of foundation columns and foundation beams, thereby improving the bearing strength of the column base structure and providing a construction method so that the structure can be efficiently implemented in practical applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a plan view of a herringbone rigid column base structure according to an embodiment of the present invention.

[0023] Figure 2 This is a schematic elevation view of a herringbone rigid column base structure according to an embodiment of the present invention.

[0024] Figure 3 This is a plan view of the steel column anchor bolts in an embodiment of the present invention.

[0025] Figure 4 This is a vertical arrangement diagram of the steel column anchor bolts and embedded steel bars in an embodiment of the present invention.

[0026] Figure 5 It is a schematic elevation view of a steel column in an embodiment of the present invention.

[0027] Figure 6 for Figure 5 Schematic diagram of the horizontal section at point 1-1.

[0028] Figure 7 for Figure 5 Schematic diagram of the horizontal section at point 2-2.

[0029] Figure 8 This is a schematic diagram of the completed installation of the steel column in an embodiment of the present invention.

[0030] Figure 9 This is a schematic elevation diagram of the reinforcement of the foundation beam in an embodiment of the present invention.

[0031] Figure 10 It is a plan view of the reinforcement of the foundation beam in an embodiment of the present invention.

[0032] Figure 11 This is a schematic elevation diagram of the reinforcement of the foundation column in an embodiment of the present invention.

[0033] Figure 12 It is a plan view of the reinforcement of the foundation column in an embodiment of the present invention. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0035] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not intended to indicate or imply relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific contexts.

[0037] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] See first Figure 1 and Figure 2 , Figure 1 This is a schematic plan view of a herringbone rigid column base structure according to an embodiment of the present invention. Figure 2 It is a schematic elevation view of a herringbone rigid column base structure according to an embodiment of the present invention. As shown in the figure, the herringbone rigid column base structure according to the embodiment of the present invention is mainly composed of two foundation columns 1 and a foundation beam 2. Both foundation columns 1 are rigid structures, including steel columns 11, vertical steel bars 12 and concrete; the foundation beam 2 is a reinforced concrete structure, including foundation beam main bars 21, stirrups 22 and concrete. The two foundation columns 1 serve as the main bearing structures of the two column feet of the herringbone rigid column. The foundation beam 2 is mainly used to connect the two foundation columns 1 corresponding to the two column feet, thereby increasing the integrity of the column foot structures at both ends. Preferably, the main bars 21 of the foundation beam 2 are welded to the two steel columns 11 at the parts of the anchor plates 14 prefabricated and welded in advance. Preferably, the foundation beam 2 is located above the middle of the foundation column 1. In this embodiment, the foundation beam 2 is located near the top of the foundation column 1.

[0039] Further cooperation Figure 3 、 Figure 4 and Figure 8As shown, a base plate 111 and a top plate 112 are welded to the bottom and top of the steel column 11, respectively. Stiffening plates 113 are welded between the steel column 11 and the base plate 111 and top plate 112, respectively. Stiffening plates 113 are perpendicular to the base plate 111 or top plate 112. The base plate 11 can be pre-buried and fixed to the base of the herringbone column using anchor bolts 12 and matching nuts 121. Holes for the anchor bolts 12 are provided in the base plate 111, and the anchor bolts 12 are cast in concrete. The anchor bolts 12 are 30 mm in diameter, made of Q355B, and have an anchoring length of 30d (30 times the diameter). The lower end of the anchor bolt 12 forms a hook with a length of 4d (4 times the diameter).

[0040] The vertical steel bars 13 of the foundation column 1 are arranged around the steel column 11. The lower ends of the vertical steel bars 13 form hooks and are bent and anchored at the two column feet of the herringbone column. The diameter of the steel bars of the foundation column 1 is 25mm, the strength is HRB400, the anchoring length is 1000mm, and the hook length is 450mm.

[0041] Further cooperation Figures 5 to 8 As shown, the steel column 11 is an I-beam with an I-shaped cross-section. The anchor plate 14 is a rectangular steel plate with a width suitable for the spacing between the two wings of the I-beam. The three adjacent sides of the rectangular steel plate are welded to the web and two wings of the I-beam. Multiple studs 114 are welded to the outer surfaces of the wings of the I-beam to strengthen the tensile strength of the steel column and the concrete of the steel column. Furthermore, stiffening plates 113 are welded between the web and wings of the I-beam and the base plate 111. The height of the stiffening plates on the web is slightly higher than that on the wings, and the height of the stiffening plates on the base plate 111 is slightly higher than that on the top plate 112.

[0042] Further cooperation Figure 9 and Figure 10 As shown, each steel column 11 is welded with at least two anchor plates 14 corresponding to the main reinforcement 21 located on the upper and lower surfaces of the foundation beam 2. The ends of the main reinforcement 21 between the upper and lower surfaces of the foundation beam 2 are bent and then welded to the web of the steel column 11, or not welded. Preferably, a reinforcement plate 15 is welded to the other side of the steel column web, symmetrical to the anchor plates 14. The reinforcement plates 15 have the same specifications, quantity, and dimensions as the anchor plates 14 and are positioned symmetrically with the anchor plates 14, corresponding to the steel column web.

[0043] The present invention improves the bearing capacity and integrity of the column base structure by designing a rigid column base structure and adopting a combination of foundation columns and foundation beams, thereby improving the bearing strength of the column base structure and providing a construction method so that the structure can be efficiently implemented in practical applications.

[0044] The following combination Figures 3 to 12The construction method of a herringbone rigid column base structure according to an embodiment of the present invention is further described in detail.

[0045] A construction method for a herringbone rigid column base structure, the main operating steps of which are as follows:

[0046] (1) First, the steel frame column anchor bolts 12 and the vertical reinforcement 13 of the foundation columns 11 are embedded in the two column feet of the herringbone column. The diameter of the anchor bolt 12 is 30mm, the material is Q355B, the anchoring length is 30d (30 times the diameter of the anchor bolt), the hook length is 4d (4 times the diameter of the anchor bolt), the diameter of the vertical reinforcement 13 of the foundation column is 25mm, the strength is HRB400, the anchoring length is 1000mm, and the hook length is 450mm. The vertical reinforcement 13 of the foundation column 1 is arranged around the steel frame column 11. The lower end of the vertical reinforcement 13 forms a hook and is bent and anchored at the two column feet of the herringbone column. The diameter of the reinforcement of the foundation column 1 is 25mm, the strength is HRB400, the anchoring length is 1000mm, and the hook length is 450mm. The specific arrangement of the anchor bolts and embedded vertical reinforcement is as follows: Figure 3 and Figure 4 shown.

[0047] (2) After the concrete of the anchor bolts 12 is poured and the strength reaches the design requirements, the steel frame columns 11 of the two foundation columns are installed on the anchor bolts 12. The steel frame columns 11 are made of welded steel plates with a thickness of 30 mm. The structure of the steel frame columns 11 is as follows: Figures 5-7 shown.

[0048] Specifically, a base plate 111 and a top plate 112 are welded to the bottom and top of the steel column 11, respectively. Stiffening plates 113 are welded between the steel column 11 and the base plate 111 and top plate 112, respectively. Stiffening plates 113 are perpendicular to the base plate 111 or top plate 112. Base plate 11 can be pre-buried and fixed to the base of the herringbone column using anchor bolts 12 and matching nuts 121. Bottom plate 111 has holes for the anchor bolts 12, and concrete is poured in the areas where the anchor bolts 12 are located.

[0049] The steel column 11 is fixed to the anchor bolt 12 by a double nut 121. An adjusting nut is set at the bottom to adjust the horizontality and elevation of the steel column 11. The installation of the steel column 11 is completed as shown in the figure. Figure 8 shown.

[0050] (3) After the two steel columns 11 are installed, the foundation beam reinforcement is tied between the two steel columns 11. The two ends of the foundation beam main reinforcement 21 are welded to the prefabricated and welded anchor plates 14 on the two steel columns 11, and then the foundation beam stirrups 22 are tied. Among them, the cross-sectional size of the foundation beam 2 is 1200mm×600mm. The main reinforcement 21 and the steel column 11 are welded to the anchor plates 14. The anchor plates 14 are made of Q355B steel plates with a thickness of 25mm. The main reinforcement 21 has a lap length of 250mm. The reinforcement of the steel foundation beam is as follows: Figure 9 and Figure 10 As shown. Each steel column 11 is welded with at least two anchor plates 14 corresponding to the main reinforcement 21 located on the upper and lower sides of the foundation beam 2. The ends of the main reinforcement 21 between the upper and lower sides of the foundation beam 2 are bent and then welded to the web of the steel column 11, or not welded. Preferably, a reinforcement plate 15 is welded to the other side of the steel column web, symmetrical to the anchor plates 14. The specifications, quantity, and dimensions of the reinforcement plates 15 are the same as those of the anchor plates 14, and the reinforcement plates 15 are positioned symmetrically with the anchor plates 14, corresponding to the steel column web.

[0051] (4) After the foundation beam reinforcement is completed, the foundation column reinforcement is tied. The foundation column size is 2400mm × 1200mm. The foundation column reinforcement is as follows Figure 11 and Figure 12 shown.

[0052] (5) After the reinforcement of the foundation columns is tied, the formwork of the foundation beams and foundation columns is set up, and then the concrete of the foundation beams and foundation columns is poured and cured. The concrete strength grade reaches C35, and the construction of the rigid column base structure is completed.

[0053] Pour the concrete of foundation columns and foundation beams and maintain them to complete the construction of the rigid column base structure.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and should all be included in the scope of protection of the present invention.

[0055] The technology, shape, and structure not described in detail in the present invention are all well-known technologies.

Claims

1. A herringbone column base structure, characterized by: The cam is connected to the support frame of the second frame by means of a screw thread connecting the support frame and the support rod, and the support frame is connected to the support frame of the second frame by means of a screw thread connecting the support frame and the support rod.

2. The herringbone column base structure according to claim 1, characterized in that: The base plate is fixed to the two column feet of the herringbone column by pre-embedded anchor bolts and matching nuts. Holes for the anchor bolts to pass through are opened on the base plate, and the anchor bolt positions are poured with concrete.

3. The herringbone column base structure according to claim 1, characterized in that: The vertical reinforcements of the foundation column are arranged around the steel column, and the lower ends of the vertical reinforcements are bent and anchored at the two column feet of the herringbone column.

4. The herringbone column base structure according to claim 1, characterized in that: A reinforcing plate is welded on the other side of the web symmetrically to the anchoring plate.

5. The herringbone column base structure according to claim 1, characterized in that: The foundation beam is located above the middle of the foundation column.

6. A construction method for a herringbone column base structure, characterized in that: Including steps: Corresponding to the two column feet of the herringbone column, two foundation column steel frame anchor bolts and foundation column vertical reinforcement are pre-embedded; After the concrete at the anchor bolts is poured and the strength reaches the design requirements, two steel columns of the foundation columns are installed on the anchor bolts; After the two steel columns are installed, the foundation beam reinforcement is tied between the two steel columns, the foundation beam main reinforcement is welded to the anchor plates prefabricated and welded on the two steel columns, and then the foundation beam stirrups are tied; Tie foundation column reinforcement; After the reinforcement is tied, the formwork is set up; Pour the concrete of foundation columns and foundation beams and maintain them to complete the construction of the rigid column base structure.

7. The construction method of the herringbone rigid column base structure according to claim 6, characterized in that: The bottom and top of the steel column are respectively welded with a bottom plate and a top plate, and stiffening plates are respectively welded between the steel column and the bottom plate and the top plate. The stiffening plates are perpendicular to the bottom plate or the top plate, and holes are opened on the bottom plate for the anchor bolts to pass through.

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