An assembled inner filler stone steel pipe concrete column-steel beam combined joint

Abstract

The application provides a fabricated inner filler stone steel pipe concrete column-steel beam combined node, which uses waste stone to replace part of concrete in the steel pipe, reduces the amount of concrete in the structure, and reduces carbon emission; the inner filler stone of the steel pipe concrete structure can effectively relieve the compression buckling of the steel pipe, and under the constraint of the steel pipe concrete, the stone is in a three-way compression state, the stone strength can be fully utilized, so that the performance of the combined structure is significantly improved. The steel plate and the stone are connected through structural glue, and the steel plates are connected with each other through the patch plate, so as to position the stone in the outer steel pipe, which not only simplifies the construction process of the traditional inner filler stone steel pipe concrete (SCFST) column, but also has the advantages of simple construction, energy saving and environmental protection, and good quality in combination with the prefabricated assembly structure.

Description

TECHNICAL FIELD

[0001] The application relates to a fabricated steel pipe concrete column-steel beam combined node filled with stones. BACKGROUND

[0002] Stone materials are widely used in the field of building, such as stone walls, stone columns and even stone beams, especially in rural buildings, which have unique styles. Although stone materials have the characteristics of high compressive strength, high integrity and excellent durability, there are many safety hazards due to the low tensile strength and bending strength and strong brittleness of stone materials.

[0003] In the prior art, steel pipe concrete combined structures are widely applied due to the characteristics of high bearing capacity, large rigidity and excellent anti-seismic performance, but buckling of the steel pipe under axial load will weaken the constraint of the internal concrete, and the constraint effect provided by the steel material is limited, which hinders the continuous improvement of the performance of the steel pipe concrete structure. In the SCFST column structure, waste stone resources can be utilized, but the positioning of the stone materials in the SCFST column structure is difficult, and the construction precision is high, which seriously restricts the engineering application of the SCFST structure. SUMMARY

[0004] Therefore, the application aims to provide a fabricated steel pipe concrete column-steel beam combined node filled with stones to solve the above problems.

[0005] The application adopts the following scheme:

[0006] The application provides a fabricated steel pipe concrete column-steel beam combined node filled with stones, which comprises an outer steel pipe, an inner core arranged in the outer steel pipe, a plurality of steel bars penetrating through the outer steel pipe, fixing plates arranged at both ends of the outer steel pipe and connected with the steel bars, and four steel beams connected to the middle part of the outer steel pipe.

[0007] The inner core comprises a plurality of stone materials and steel plates connected with the stone materials, and the steel plates are connected through a patch plate. The outer steel pipe comprises an upper steel pipe, a center steel pipe, a lower steel pipe and a steel pipe connecting piece for sleeving and connecting the upper steel pipe, the center steel pipe and the lower steel pipe. The four steel beams are connected to the center steel pipe through bolts. The steel pipe connecting piece is connected to the steel beams through bolts. The gap in the outer steel pipe is filled with concrete.

[0008] Further, the two ends of the steel bars are provided with threads, pass through through holes in the fixing plates and are fixed through nuts.

[0009] Further, a plurality of stone materials are arranged in the outer steel pipe along the circumferential direction of the outer steel pipe.

[0010] Further, the shape of the steel plate is adapted to the outer side of the stone, and the steel plate is connected to the stone by structural adhesive.

[0011] Further, the steel plate is provided with pegs on the side away from the stone.

[0012] Further, the fixed plate at the upper end of the outer steel pipe is provided with a grouting port.

[0013] Further, the outer diameter of the steel pipe connector is adapted to the outer diameters of the upper steel pipe, the center steel pipe and the lower steel pipe, so that the upper steel pipe, the center steel pipe and the lower steel pipe are sleeved outside the steel pipe connector.

[0014] Further, the steel beam is an H-shaped steel beam.

[0015] Further, the center steel pipe is provided with a plurality of groups of vertical web connectors arranged at intervals, for connecting with the middle web of the H-shaped steel beam; and the steel pipe connector is provided with a transverse flange connector, for connecting with the flange of the H-shaped steel beam.

[0016] By adopting the above technical scheme, the application can achieve the following technical effects:

[0017] The application provides a fabricated steel pipe concrete column-steel beam combined node filled with stone, which uses waste stone as the filling material, reduces the amount of concrete in the structure, and reduces carbon emissions; the steel pipe concrete structure filled with stone can effectively relieve the buckling of the steel pipe under compression, and under the constraint of the steel pipe concrete, the stone is in a three-way compression state, the strength of the stone can be fully utilized, and the performance of the combined structure is significantly improved. The steel plate and the stone are connected by structural adhesive, and the steel plates are connected to each other by the patch plate, thereby positioning the stone in the outer steel pipe, which not only simplifies the construction process of the SCFST column, but also has the advantages of simple construction, energy saving, environmental protection and good quality. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0019] Figure 1 is a schematic view of a fabricated steel pipe concrete column-steel beam combined node structure filled with stone according to an embodiment of the application;

[0020] Figure 2is an explosive structure schematic diagram of a fabricated inner filler stone steel pipe concrete column-steel beam combined node of the present application;

[0021] Figure 3 is a steel pipe connecting piece structure schematic diagram of a fabricated inner filler stone steel pipe concrete column-steel beam combined node of the present application;

[0022] Figure 4 is a structure schematic diagram of a center steel pipe of a fabricated inner filler stone steel pipe concrete column-steel beam combined node of the present application;

[0023] Figure 5 is a partial assembly structure schematic diagram of an upper steel pipe of a fabricated inner filler stone steel pipe concrete column-steel beam combined node of the present application;

[0024] Figure 6 is a core structure schematic diagram of a fabricated inner filler stone steel pipe concrete column-steel beam combined node of the present application;

[0025] Figure 7 is a top view structure schematic diagram of a core of a fabricated inner filler stone steel pipe concrete column-steel beam combined node of the present application;

[0026] Figure 8 is a partial assembly structure schematic diagram of a core of a fabricated inner filler stone steel pipe concrete column-steel beam combined node of the present application;

[0027] Figure: outer steel pipe 1, steel beam 2, fixed plate 3, upper steel pipe 4, steel pipe connecting piece 5, flange connecting piece 6, web connecting piece 7, center steel pipe 8, lower steel pipe 9, steel bar 10, filler stone 11, steel plate 12, stud 13, patch plate 14, grouting opening 15. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0029] EMBODIMENT

[0030] Combine Figures 1 to 8 As shown, this embodiment provides an assembled steel tube concrete column-steel beam composite node with internal filling stone, comprising an outer steel tube 1, an inner core disposed in the outer steel tube 1, a plurality of steel bars 10 passing through the outer steel tube 1, fixing plates 3 disposed at both ends of the outer steel tube 1 and connected to the steel bars 10, and four steel beams 2 connected to the middle of the outer steel tube 1;

[0031] The inner core includes multiple stones 11 and steel plates 12 connected to the stones 11; the multiple steel plates 12 are connected by connecting plates 14; the outer steel pipe 1 includes an upper steel pipe 4, a central steel pipe 8, a lower steel pipe 9 and a steel pipe connector 5 for sleeve-connecting the upper steel pipe 4, the central steel pipe 8 and the lower steel pipe 9; the four steel beams 2 are connected to the central steel pipe 8 by bolts; the steel pipe connector 5 is connected to the steel beams 2 by bolts; the gap in the outer steel pipe 1 is filled with concrete.

[0032] Using waste stone as internal filler reduces the amount of concrete in the structure, lowering carbon emissions. Furthermore, the filler stone 11 within the concrete-filled steel tube structure effectively mitigates compressive buckling of the steel tube. Under the constraints of the concrete-filled steel tube, the stone 11 is subjected to three-dimensional compression, fully utilizing its strength and significantly improving the performance of the composite structure. Steel plates 12 are connected to the stone 11 with structural adhesive, and the steel plates 12 are interconnected by tie plates 14. This position of the stone 11 within the outer steel tube 1 simplifies the SCFST column construction process. Combined with the prefabricated structure, the construction is simple, energy-efficient, environmentally friendly, and high-quality.

[0033] Specifically, in this embodiment, Figures 6 to 8 As shown, the outer steel pipe 1 is cylindrical, and is provided with four inner cores and four longitudinal steel bars 10 inside. The inner core includes a square columnar stone 11 formed by micro-processing of waste stone, and a steel plate 12 connected to it by structural adhesive; the four stone 11 are evenly distributed in the outer steel pipe 1 along the circumferential direction of the outer steel pipe 1, and the steel plate 12 is an angle steel; the angle steels are connected by the gusset plate 14, and the angle steels are provided with bolts 13 to strengthen the connection with the concrete. Both ends of the steel bar 10 are provided with threads, which pass through the through holes on the fixing plate 3 and are fixed by nuts. As shown Figure 5 As shown, a grouting port 15 is provided on the fixing plate 3 at the upper end of the outer steel pipe 1 for pouring concrete. Of course, in other embodiments, the stone 11 can also be in other shapes, such as polygonal or cylindrical.

[0034] In this embodiment, if Figures 1 to 4As shown, the steel beam 2 is an H-shaped steel beam 2; the outer diameter of the steel pipe connector 5 is matched with the outer diameter of the upper steel pipe 4, the center steel pipe 8 and the lower steel pipe 9, so that the upper steel pipe 4, the center steel pipe 8 and the lower steel pipe 9 are sleeved outside the steel pipe connector 5; the outer side of the center steel pipe 8 is provided with four groups of two vertical web connectors 7 which are arranged at intervals and are used for being connected with the middle web of the H-shaped steel beam 2 through bolts; the steel pipe connector 5 is provided with four transverse flange connectors 6 which are used for being connected with the flanges of the H-shaped steel beam 2 through bolts.

[0035] The following specifically describes the construction steps of the fabricated inner filler stone 11 steel pipe concrete column-steel beam 2 combined node:

[0036] S1: production of the inner core;

[0037] Four pieces of waste stone materials with approximately the same size are taken and processed into square column-shaped stone materials 11 with consistent size and shape; then angle steels with the same length as the stone materials 11 are taken and bonded with the stone materials 11 through structural glue; and the angle steels are welded with bolts 13; finally, the angle steels are welded with the latticed plates 14, so that the four stone materials 11 and the angle steels are connected and combined into an integral whole.

[0038] S2: splicing of the outer steel pipe 1;

[0039] Firstly, the lower end of the first steel pipe connector 5 is inserted into the upper end of the lower steel pipe 9, and then the lower end of the center steel pipe 8 is sleeved on the upper end of the first steel pipe connector 5; the lower end of the second steel pipe connector 5 is inserted into the upper end of the center steel pipe 8; finally, the lower end of the upper steel pipe 4 is sleeved on the upper end of the second steel pipe connector 5.

[0040] S3: assembling the inner core produced in S1 and the outer steel pipe 1 spliced in S2.

[0041] The inner core is placed in the outer steel pipe 1, the reinforcing steel bars 10 are penetrated through the outer steel pipe 1 and inserted into the through holes of the end plates 3 placed at both ends of the outer steel pipe 1, and are fixed through nuts.

[0042] S5: pouring of concrete through the grouting holes 15 of the end plates 3 at the upper end of the outer steel pipe 1, so that the outer steel pipe 1 and the inner core form an integral whole.

[0043] S6: the flange connectors 6 of the first steel pipe connector 5 and the second steel pipe connector 5 are bolted with the upper and lower flanges of the H-shaped steel beam 2, and the web connectors 7 of the steel beam 2 are bolted with the web of the H-shaped steel beam through high-strength bolts.

[0044] The inner core, the upper steel pipe 4, the center steel pipe 8, the lower steel pipe 9 and the H-shaped steel beam 2 described above can be prefabricated in a factory and then transported to a construction site for assembly and concrete pouring.

[0045] The above merely describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application falls within the protection scope of the present application.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0047] In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0048] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] In the present application, unless otherwise specifically defined and limited, the first feature "above" or "below" the second feature can include the first and second features directly contacting, or the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

Claims

1. An assembled concrete-filled steel tube column-steel beam joint, characterized in that: It includes an outer steel pipe, an inner core arranged in the outer steel pipe, a plurality of steel bars passing through the outer steel pipe, fixing plates arranged at both ends of the outer steel pipe and connected to the steel bars, and four steel beams connected to the middle of the outer steel pipe; The inner core includes a plurality of stone materials and steel plates connected to the stone materials; the plurality of steel plates are connected by tie plates; the outer steel pipe includes an upper steel pipe, a central steel pipe, a lower steel pipe, and a steel pipe connector for sleeve-connecting the upper steel pipe, the central steel pipe, and the lower steel pipe; the four steel beams are connected to the central steel pipe by bolts; the steel pipe connector is connected to the steel beams by bolts; the gaps in the outer steel pipe are filled with concrete; The plurality of stones are evenly distributed in the outer steel tube along the circumferential direction of the outer steel tube; the shape of the steel plate is adapted to the outer side surface of the stone and is connected by structural adhesive; a bolt is provided on the side of the steel plate away from the stone.

2. The assembled concrete-filled steel tube column-steel beam composite node according to claim 1, characterized in that: Both ends of the steel bar are provided with threads, pass through the through holes on the fixing plate, and are fixed by nuts.

3. The assembled concrete-filled steel tube column-steel beam composite node according to claim 1, characterized in that: The fixing plate disposed on the upper end of the outer steel pipe is provided with a grouting port.

4. The assembled concrete-filled steel tube column-steel beam composite node according to claim 1, characterized in that: The outer diameter of the steel pipe connector is matched with the outer diameters of the upper steel pipe, the central steel pipe and the lower steel pipe, so that the upper steel pipe, the central steel pipe and the lower steel pipe are sleeved outside the steel pipe connector.

5. The assembled concrete-filled steel tube column-steel beam joint according to claim 3, characterized in that: The steel beam is an H-shaped steel beam.

6. The assembled concrete-filled steel tube column-steel beam joint according to claim 5, characterized in that: The central steel pipe is provided with multiple groups of vertical web connectors arranged at intervals for connecting with the middle web of the H-shaped steel beam; the steel pipe connector is provided with horizontal flange connectors for connecting with the flanges of the H-shaped steel beam.

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