CN207749637U - A kind of connecting node of steel core concrete column and girder steel - Google Patents

Abstract

The utility model provides a connection node between a steel pipe concrete column and a steel beam, comprising: a steel pipe concrete column, a node core component and a steel beam component, all of which are prefabricated in a factory; the node core component is respectively connected with the steel tube concrete column and the steel beam component . Among them, the concrete in the core area of the core component of the node is cemented with the pre-embedded steel bars at the lower part of the CFST column, the concrete in the core area is cemented with the core concrete, and multiple second studs are vertically embedded on the inner wall of the steel pipe in the core area; the inner wall of the steel pipe in the CFST column A plurality of first studs are vertically embedded; a plurality of through holes are provided on the web connection plate; the left side plate and the right side plate of the beam end that is not connected with the node core component of the steel beam are circular to the axial centerline of the steel beam Arc notch. The utility model is easy to assemble and combine, does not need welding and concrete pouring on site, and the components are closely connected. The steel beam assembly is designed to open holes and weaken the beam end.

Description

A connection node between a steel pipe concrete column and a steel beam

technical field

The utility model relates to the technical field of construction engineering, in particular to a connection node between a steel pipe concrete column and a steel beam.

Background technique

Concrete-filled steel tube is a typical steel-concrete composite column, which generally refers to a structure composed of steel tubes and concrete that is jointly stressed. This type of component has the characteristics of good mechanical properties. In addition, since this type of component does not require templates, it is convenient for on-site pouring, and it is also convenient for standardized production of engineering prefabrication.

In recent years, with the continuous improvement of our country's urbanization level, our country's structural design and construction level have developed greatly, and at the same time, we have higher requirements for the quality, speed and environmental impact of building construction. At present, most building structures are constructed by pouring concrete or welded steel on site. The construction time is long, and the construction quality is greatly affected by the site conditions. At the same time, it will pollute the environment. As the components are prefabricated in the factory, the prefabricated building can control the quality uniformly. At the same time, it only needs to assemble the structure on site. The speed is fast and the impact is small, which is more suitable for the requirements of urban construction and urban renewal in the new era. As a key component connecting beams and columns, nodes are the key to ensuring the integrity of the structure, as well as ensuring the safety, stability and assembly speed of the prefabricated structure. In the structural system, CFST columns are generally connected with steel beams. Since the CFST column is composed of steel pipes and concrete, in order to ensure the joint work of steel and concrete, the joint connection has certain complexity. Therefore, there is an urgent need for a type of joint form with high strength, high rigidity, convenient construction, and good mechanical properties to meet the needs of engineering.

Utility model content

In order to solve the above-mentioned problems that need a type of joint form with high strength, high rigidity, convenient construction and good mechanical properties to meet the needs of engineering, the utility model provides a joint joint between a steel pipe concrete column and a steel beam, including : a concrete filled steel pipe column 1, a node core component 2 and a steel beam component 3, the node core component 2 is connected to the steel tube concrete column 1 and the steel beam component 3 respectively.

Among them, the steel pipe concrete column 1 includes: steel pipe 101, core concrete 105, lower pre-embedded steel bar 107 and first stud 108; node core component 2 includes: core area steel pipe 203, core area concrete 204, vertical short connecting web 207 and the second peg 208; the steel beam assembly 3 includes: an upper steel beam 301, a first left side plate 3011 and a first right side plate 3012, an upper flange connecting plate 302, a lower flange connecting plate 304, a lower steel beam 305 , the second left side plate 3051 , the second right side plate 3052 and the web connecting plate 303 .

The core area concrete 204 is cemented with the lower pre-embedded steel bar 107, and the core area concrete 204 is cemented with the core concrete 105); the inner wall of the steel pipe 203 in the core area is vertically embedded with a plurality of second studs 208; the inner wall of the steel pipe 101 is vertically embedded with a plurality of second studs A peg 108; the vertical short connecting web 207 is fixedly connected with the web connecting plate 303, and the web connecting plate 303 is provided with a plurality of through holes; the upper steel beam 301 is not in contact with the upper flange connecting plate 302 The first left side plate 3011 and the first right side plate 3012 have arc-shaped gaps toward the axial centerline of the steel beam 301; the second left side plate at the end of the lower steel beam 305 that is not in contact with the lower flange connecting plate 304 3051 and the second right side plate 3052 form circular arc-shaped gaps toward the axial centerline of the steel beam 301 .

Preferably, the upper connecting ring plate 201 of the node core assembly 2 is fixedly connected to the lower flange 103 of the upper concrete-filled steel pipe column 1, and the lower connecting ring plate 202 of the node core assembly 2 is connected to the upper flange 102 of the lower concrete-filled steel pipe column 1 Fixed;

Preferably, the upper connecting ring plate 201 of the node core assembly 2 is fixedly connected to the upper flange connecting plate 302 of the steel beam assembly 3, and the lower connecting ring plate 202 is fixedly connected to the lower flange connecting plate 304;

Preferably, the vertical short connecting web 207 of the node core assembly 2 is perpendicular to the upper connecting ring plate 201 and the lower connecting ring plate 202 , and is fixedly connected to the upper connecting ring plate 201 and the lower connecting ring plate 202 respectively.

Preferably, the CFST column 1 further includes: stiffeners 104 and upper embedded casing 106; the CFST column 1 is welded to the upper flange 102 and the lower flange 103 respectively; the stiffeners 104 are respectively connected to the steel pipe 101, the upper flange The blue plate 102 and the lower flange 103 are welded; the upper embedded casing 106 is pre-embedded in the upper part of the core concrete 105 , and the lower pre-embedded steel bar 107 is pre-embedded in the lower part of the core concrete 105 .

Preferably, the vertical short connecting web 207 is perpendicular to the upper connecting ring plate 201 and the lower connecting ring plate 202 , and is fixedly connected to the upper connecting ring plate 201 and the lower connecting ring plate 202 respectively.

Preferably, part of the upper surface of the upper steel beam 301 is affixed to a part of the lower surface of the upper flange connecting plate 302; a part of the lower surface of the lower steel beam 305 is fixed to a part of the upper surface of the lower flange connecting plate 304; the upper steel beam 301 and the lower steel beam 305 are vertically fixed to the web connecting plate 303 respectively.

Among them, the fixed connection is connected by bolts; the cementation is cemented by grouting and connecting materials.

Preferably, the node core component 2 also includes: the embedded casing 205 in the core area and the embedded steel bar 206 in the core area; The lower end is welded; the steel pipe 203 in the core area is welded to the vertical short connecting web 207, and the steel pipe 203 in the core area is filled with the concrete 204 in the core area; 206 is pre-embedded in the lower part of the concrete 204 in the core area.

Preferably, the positions of the bolt holes of the lower flange 103 and the upper connecting ring plate 201 correspond, and the positions of the bolt holes of the upper flange 102 and the lower connecting ring plate 202 correspond. The position of the upper pre-embedded casing 106 corresponds to the pre-embedded steel bar 205 in the core area, and the position of the lower pre-embedded steel bar 107 corresponds to the position of the pre-embedded casing 205 in the core area. The positions of the bolt holes of the web connecting plate 303 and the vertical short connecting web are corresponding. The position of the bolt holes on the flange connecting plate 302 corresponds to the upper connecting ring plate 201 and the lower connecting ring plate 202 .

The utility model provides a connection node between a steel pipe concrete column and a steel beam. The steel pipe concrete column, the node core component and the steel beam component are all prefabricated in the factory in advance, and the on-site assembly and combination are convenient, and the site does not require welding and core concrete pouring , the components are tightly connected and strong, and the steel beam assembly is designed to open holes and weaken the beam end, so that the utility model has good mechanical performance and good seismic performance. The damage under the earthquake mainly occurs at the beam end, maintenance and Easy replacement of components.

Description of drawings

Fig. 1 is a schematic diagram of the connection node structure of a steel pipe concrete column and a steel beam provided by a preferred embodiment of the present invention;

Fig. 2 is a schematic diagram of splicing joints of a steel pipe concrete column and a steel beam provided by a preferred embodiment of the present invention;

Fig. 3 is a structural schematic diagram of the concrete filled steel pipe assembly provided by a preferred embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a node core component provided by a preferred embodiment of the present invention;

Fig. 5 is a structural schematic diagram of a steel beam assembly provided by a preferred embodiment of the present invention;

in:

101. Steel pipe 102. Upper flange 103. Lower flange

104. Stiffener 105. Core concrete 106. Upper embedded casing

107. The lower pre-embedded reinforcement 108. The first peg 201. The upper connecting ring plate

202. Lower connecting ring plate 203. Steel pipe in core area 204. Concrete in core area

205. Embedded casing in the core area 206. Embedded steel bars in the core area 207. Vertical short connecting web

208. Second stud 301. Upper steel beam 302. Upper flange connecting plate

303. Web connecting plate 304. Lower flange connecting plate 305. Lower steel beam

3011. First left side panel 3012. First right side panel 3051. Second left side panel

3052. Second right panel.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is further described in detail. The following specific examples are used to illustrate the utility model, but are not used to limit the scope of the utility model.

In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "parallel" etc. are based on the The orientation or positional relationship is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and made in a specific orientation, so it cannot be understood as a reference to the utility model. limits.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "setting", "connecting" and "connecting" should be understood in a broad sense, for example, it can be connected or detachable Connected, or integrally connected; it may be mechanically connected, or electrically connected, directly connected, or indirectly connected through an intermediary, or internally connected between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

As the components are prefabricated in the factory, the prefabricated building can control the quality uniformly. At the same time, it only needs to assemble the structure on site. The speed is fast and the impact is small, which is more suitable for the requirements of urban construction and urban renewal in the new era. As a key component connecting beams and columns, nodes are the key to ensuring the integrity of the structure, as well as ensuring the safety, stability and assembly speed of the prefabricated structure. In the structural system, CFST columns are generally connected with steel beams. Since the CFST column is composed of steel pipes and concrete, in order to ensure the joint work of steel and concrete, the joint connection has certain complexity. Therefore, there is an urgent need for a type of joint form with high strength, high rigidity, convenient construction, and good mechanical properties to meet the needs of engineering.

Fig. 1 is a schematic diagram of the connection node structure of a steel pipe concrete column and a steel beam provided by a preferred embodiment of the present invention, and Fig. 2 is a splicing of a connection node of a steel pipe concrete column and a steel beam provided by a preferred embodiment of the present invention Schematic diagrams, as shown in Figures 1 and 2, the utility model provides a connection node between a steel tube concrete column and a steel beam, and the utility model provides a connection node between a steel tube concrete column and a steel beam, including: a steel tube concrete column 1. The node core component 2 and the steel beam component 3, the node core component 2 is connected to the steel pipe concrete column 1 and the steel beam component 3 respectively.

Among them, the steel pipe concrete column 1 includes: steel pipe 101, core concrete 105, lower pre-embedded steel bar 107 and first stud 108; node core component 2 includes: core area steel pipe 203, core area concrete 204, vertical short connecting web 207 and the second peg 208; the steel beam assembly 3 includes: an upper steel beam 301, a first left side plate 3011 and a first right side plate 3012, an upper flange connecting plate 302, a lower flange connecting plate 304, a lower steel beam 305 , the second left side plate 3051 , the second right side plate 3052 and the web connecting plate 303 .

The core area concrete 204 is cemented with the lower pre-embedded steel bar 107, and the core area concrete 204 is cemented with the core concrete 105); the inner wall of the steel pipe 203 in the core area is vertically embedded with a plurality of second studs 208; the inner wall of the steel pipe 101 is vertically embedded with a plurality of second studs A peg 108; the vertical short connecting web 207 is fixedly connected with the web connecting plate 303, and the web connecting plate 303 is provided with a plurality of through holes; the upper steel beam 301 is not in contact with the upper flange connecting plate 302 The first left side plate 3011 and the first right side plate 3012 have arc-shaped gaps toward the axial centerline of the steel beam 301; the second left side plate at the end of the lower steel beam 305 that is not in contact with the lower flange connecting plate 304 3051 and the second right side plate 3052 form circular arc-shaped gaps toward the axial centerline of the steel beam 301 .

Prefabricated buildings refer to buildings that are prefabricated in factories and assembled on site. The advantages of prefabricated buildings are fast construction, less restricted by climatic conditions, saving labor and improving construction quality.

Concrete-filled steel pipe columns are concrete poured into steel pipes and compacted to increase the strength and rigidity of steel pipes. Steel pipes and their core concrete are structural members that can bear external loads together. According to different cross-sectional shapes, they can be divided into circular concrete-filled steel pipes, , Rectangular steel pipe concrete and polygonal steel pipe concrete, etc. Concrete has high compressive strength. However, the bending resistance is very weak, while steel, especially section steel, has strong bending resistance and good elastic-plasticity, but it is easy to lose stability and lose axial compression resistance when it is compressed. Concrete-filled steel pipe can combine the advantages of the two in structure, which can make the concrete in a state of lateral compression, and its compressive strength can be doubled. At the same time, due to the existence of concrete, the rigidity of the steel pipe is improved, and the two together Play a role, thereby greatly improving the carrying capacity.

Flange, referred to as flange, usually refers to a structure in which several fixed through holes are opened around a disc-like metal body for connecting other components, and is often used as a connector in construction engineering.

In general construction engineering, cementation refers to the grouting process and the use of grouting connecting materials to cement. Grouting is to press the fluid and gelling grout into the stratum or building through drilling or pre-buried pipes according to a certain ratio. It can be cemented and hardened into a whole in the gaps of objects to achieve the engineering purpose of anti-seepage, consolidation and reinforcement.

Specifically, the connection nodes between the CFST column and the steel beam include the CFST column 1, the node core component 2 and the steel beam component 3, and the CFST column 1, the node core component 2 and the steel beam component 3 are all prefabricated in the factory in advance, and can Assembly assembly is processed on site.

The core area concrete 204 of the node core component 2 is cemented with the lower pre-embedded steel bar 107 of the upper concrete-filled steel tube column 1, and the core concrete 204 of the node core component 2 is cemented with the core concrete 105 of the upper steel tube concrete column 1, so that the node core component and the upper steel tube The concrete column 1 is tightly connected and easy to assemble.

A plurality of second studs 208 are vertically embedded in the inner wall of the steel pipe 203 in the core area of the node core component 2, so that the steel pipe 203 in the core area and the concrete 204 in the core area are connected tightly and firmly; a first peg 108, so that the steel pipe 101 and the core concrete 105 are connected tightly and firmly.

The vertical short connecting web 207 of the node core component 2 is fixedly connected to the web connecting plate 303 of the steel beam component 3. The web connecting plate 303 is provided with a plurality of through holes to control the position of the plastic hinge at the node and reduce the connection The possibility of brittle failure of the weld; the steel beam 301 of the steel beam assembly 3 is not connected with the upper flange connecting plate 302 or the lower flange connecting plate 304, and the left side plate 3011 and the right side plate 3012 are facing the steel beam 301 The direction of the axial centerline of the steel beam is circular-arc-shaped notch, so that the fatigue damage mainly occurs at the beam end of the steel beam 301 with a circular-arc-shaped notch; Beam 301 is damaged and easy to replace. By setting a plurality of through holes on the web connecting plate 303, the left side plate 3011 and the right side plate 3012 at the end of the steel beam 301 that is not connected with the upper flange connecting plate 302 or the lower flange connecting plate 304 are aligned with the steel beam. 301 has a circular notch in the direction of the axial centerline, which has good shock resistance and is easy to repair when damaged.

In this embodiment, the concrete filled steel tube column 1, the node core component 2 and the steel beam component 3 are all prefabricated in the workshop, and can be assembled and assembled directly on the project site. The node core component 2 is used as a connection node through which the CFST column 1 and the steel beam component 3 are connected, so that the CFST column 1, the node core component 2 and the steel beam component 3 together form a connection node between the CFST column and the steel beam . Among them, the node core component 2 is cemented and connected with the core area concrete 204 of the node core component 2 through the pre-embedded steel bars 107 and core concrete 105 at the lower part of the steel tube concrete column 1, so that the node core component 2 and the steel tube concrete column 1 are tightly connected and easy to assemble; The node core component 2 is connected to the flange connection plate 302 of the steel beam component 3 through the upper connecting ring plate 201 and the lower connecting ring plate 202, and the vertical short connecting web 207 is connected to the web connecting plate 303, so that the node core component 2 and the Steel beam assemblies 3 are tightly connected.

Based on the above embodiment, Fig. 4 is a schematic structural diagram of the node core assembly provided by a preferred embodiment of the present invention. As shown in Fig. 4, the upper connection ring plate 201 of the node core assembly 2 and the lower flange of the upper concrete filled steel tube column 1 103 is fixedly connected, and the lower connection ring plate 202 of the node core assembly 2 is fixedly connected with the upper flange 102 of the lower concrete filled steel pipe column 1 .

Specifically, the node core assembly 2 is connected to the upper CFST column 1 and the lower CFST column 1 through flanges, that is, the upper connecting ring plate 201 of the node core assembly 2 is fixedly connected to the lower flange 103 of the upper CFST column 1 , the lower connecting ring plate 202 is firmly connected to the upper flange 102 of the lower concrete filled steel tube column 1 .

Based on the above embodiment, as shown in FIG. 4 , the upper connecting ring plate 201 of the node core assembly 2 is fixedly connected to the upper flange connecting plate 302 of the steel beam assembly 3, and the lower connecting ring plate 202 is fixedly connected to the lower flange connecting plate 304. .

Specifically, the node core assembly 2 is fixedly connected to the steel beam assembly 3, that is, the upper connection ring plate 201 of the node core assembly 2 is fixedly connected to the upper flange connection plate 302 of the steel beam assembly 3, and the lower connection ring plate 202 is connected to the lower wing Edge connecting plate 304 is fixedly connected.

Based on the above embodiment, as shown in Figure 4, the vertical short connecting web 207 of the node core assembly 2 is perpendicular to the upper connecting ring plate 201 and the lower connecting ring plate 202, and is connected to the upper connecting ring plate 201 and the lower connecting ring plate 201 respectively. The ring plate 202 is fixedly connected.

Specifically, a vertical short connecting web 207 is vertically fixed between the upper connecting ring plate 201 and the lower connecting ring plate 202 .

Based on the above-mentioned embodiment, Fig. 5 is a structural schematic diagram of a steel beam assembly provided by a preferred embodiment of the present invention. As shown in Fig. 5, the steel beam assembly 3 also includes: an upper steel beam 301 and a lower steel beam 305, the upper steel beam A part of the upper surface of the beam 301 is affixed to a part of the lower surface of the upper flange connecting plate 302; a part of the lower surface of the lower steel beam 305 is affixed to a part of the upper surface of the lower flange connecting plate 304; The upper steel beam 301 and the lower steel beam 305 are vertically fixed to the web connection plate 303 respectively. Wherein, the cross-sectional shape of the steel beam 301 is I-shaped or rectangular; the number of the steel beam 301 can be one limb, two limbs, three limbs or more than three limbs.

Furthermore, the fixed connection is connected by bolts, and the cementation is cemented by grouting and connecting materials. Wherein, the bolts are pressure-bearing bolts or friction bolts.

Based on the above-mentioned embodiment, Fig. 3 is a schematic diagram of the structure of the steel pipe concrete assembly provided by a preferred embodiment of the present invention. As shown in Fig. 3, the steel pipe concrete column 1 also includes: stiffeners 104 and upper embedded casing 106; It is welded with the upper flange 102 and the lower flange 103; the stiffener 104 is welded with the steel pipe 101, the upper flange 102 and the lower flange 103 respectively; the upper embedded casing 106 is embedded in the upper part of the core concrete 105 in advance, The lower pre-embedded steel bars 107 are pre-embedded in the lower part of the core concrete 105 .

Among them, the stiffener is a strip-shaped reinforcement set at the support or where there is a concentrated load to ensure the local stability of the component and transmit the concentrated force, which can improve the stability and torsional performance of the beam. Stiffeners are suitable to be arranged in pairs on both sides of the web, and can also be arranged on one side.

Specifically, in the steel pipe concrete column 1, the steel pipe 101 is welded and fixed to the upper flange 102 and the lower flange 103 respectively; The flange 103 is welded to strengthen the connection between the steel pipe 101 and the upper flange 102 and the lower flange 103, so that the steel pipe 101 is tightly connected with the upper flange 102 and the lower flange; the upper embedded casing 106 is pre-embedded On the upper part of the core concrete 105, the lower pre-embedded steel bars 107 are pre-embedded in the lower part of the core concrete 105, so that the core concrete can be conveniently prefabricated in the factory.

Further, the pre-embedded steel bar 107 is a ribbed steel bar or a threaded bolt, and the pre-embedded part of the pre-embedded steel bar 107 at the lower part of the connection node between a steel tube concrete column and a steel beam adopts ribs, threads, L or J-shaped hooks.

Based on the above embodiment, Fig. 2 is a schematic diagram of splicing joints between a concrete filled steel pipe column and a steel beam provided in a preferred embodiment of the present invention, and Fig. 3 is a schematic structural diagram of a concrete filled steel pipe assembly provided in a preferred embodiment of the present invention, as As shown in Figures 2 and 3, the node core component 2 also includes: a steel pipe 203 in the core area, a pre-embedded casing 205 in the core area, and a pre-embedded steel bar 206 in the core area; The lower end of the connecting ring plate 202 and the steel pipe 203 in the core area is welded; the steel pipe 203 in the core area is welded to the vertical short connecting web 207, and the steel pipe 203 in the core area is filled with concrete 204 in the core area; The upper part of the concrete 204 in the core area, and the pre-embedded steel bars 206 in the core area are pre-embedded in the lower part of the concrete 204 in the core area.

Specifically, the node core component 2 also includes: the embedded casing 205 in the core area and the embedded steel bar 206 in the core area; the upper end of the upper connecting ring plate 201 and the steel pipe 203 in the core area is welded, and the lower connecting ring plate 202 and the steel pipe in the core area The lower end of 203 is welded, and the vertical short connecting web 207 is welded to the steel pipe 203 in the core area, so that the steel pipe in the core area is fixed at the central part of the node core component 2, and is fixedly connected with the upper and lower connecting ring plates and the vertical short connecting web.

Further, the pre-embedded casing 205 in the core area is pre-embedded in the upper part of the concrete 204 in the core area, and the pre-embedded steel bars 206 in the core area are pre-embedded in the lower part of the concrete 204 in the core area, so that the concrete in the core area can be conveniently prefabricated in the factory. It is closely bonded to concrete and has good continuity of concrete.

Based on the above embodiment, the positions of the bolt holes of the lower flange 103 and the upper connecting ring plate 201 are corresponding, and the positions of the bolt holes of the upper flange 102 and the lower connecting ring plate 202 are corresponding. The position of the upper pre-embedded casing 106 corresponds to the pre-embedded steel bar 205 in the core area, and the position of the lower pre-embedded steel bar 107 corresponds to the position of the pre-embedded casing 205 in the core area. The positions of the bolt holes of the web connecting plate 303 and the vertical short connecting web are corresponding. The position of the bolt holes on the flange connecting plate 302 corresponds to the upper connecting ring plate 201 and the lower connecting ring plate 202 .

Further, the upper embedded casing 106 and the core area embedded casing 205 may be corrugated pipes or common grouted casings.

Further, the material of the core concrete 105 and the core concrete 204 is ordinary concrete or high performance concrete.

The utility model provides a connection node between a concrete-filled steel pipe column and a steel beam. The core concrete 204 of the node core component 2 is cemented with the lower pre-embedded steel bar 107 of the upper concrete-filled steel tube column 1, and the core concrete 204 of the node core component 2 is connected to the steel beam. The core concrete 105 of the upper concrete-filled steel tube column 1 is cemented, so that the joint core component 2 and the steel tube concrete column 1 are connected tightly and firmly; the inner wall of the steel tube 203 in the core area of the joint core component 2 is vertically embedded with a plurality of second studs 208 to make the joint core In component 2, the steel pipe 203 in the core area is closely and firmly connected to the concrete 204 in the core area; a plurality of first studs 108 are vertically embedded in the inner wall of the steel pipe 101 of the steel pipe concrete column 1, so that the steel pipe 101 and the core concrete 105 are closely and firmly connected.

At the same time, the vertical short connecting web 207 of the node core component 2 is fixedly connected to the web connecting plate 303 of the steel beam component 3, and the web connecting plate 303 is provided with a plurality of through holes to control the position of the plastic hinge at the node and reduce the The possibility of brittle failure of the connecting weld has been eliminated; the steel beam 301 of the steel beam assembly 3 is not connected with the upper flange connecting plate 302 or the lower flange connecting plate 304, and the left side plate and the right side plate are facing the steel beam 301 The direction of the axial center line of the center line is circular arc-shaped, so that if the connection node between the concrete filled steel pipe column and the steel beam is damaged, mainly the steel beam 301 is damaged, the steel beam 301 can be directly replaced, which is convenient for replacement.

The utility model provides a connection node between a steel pipe concrete column and a steel beam. The steel pipe concrete column, the node core component and the steel beam component are all prefabricated in the factory in advance, and the on-site assembly and combination are convenient, and the site does not require welding and core concrete pouring , the components are tightly connected and strong, and the steel beam assembly is designed to open holes and weaken the beam end, so that the utility model has good mechanical performance and good seismic performance. The damage under the earthquake mainly occurs at the beam end, maintenance and Easy replacement of components.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model shall be included in the utility model. within the scope of the new protection.

Claims (10)

1. the connecting node of a kind of steel core concrete column and girder steel, which is characterized in that including：

Steel core concrete column (1), joint core component (2) and girder steel component (3), the joint core component (2) respectively with institute Steel core concrete column (1) is stated with the girder steel component (3) to be connected；

Wherein, the steel core concrete column (1) includes：Steel pipe (101), core concrete (105), lower part embedded bar (107) With the first peg (108)；The joint core component (2) includes：Core space steel pipe (203), erects core space concrete (204) To short connection web (207) and the second peg (208)；The girder steel component (3) includes：Upper girder steel (301), the first left plate (3011) and the first right plate (3012), top flange connecting plate (302), lower flange connecting plate (304), lower girder steel (305), second Left plate (3051), the second right plate (3052) and web connecting plate (303)；

The core space concrete (204) and the lower part embedded bar (107) are cementing, the core space concrete (204) with The core concrete (105) is cementing；Multiple second pegs are vertically embedded on the inner wall of the core space steel pipe (203) (208)；Multiple first pegs (108) are vertically embedded on the inner wall of the steel pipe (101)；

The vertical short connection web (207) and the web connecting plate (303) are connected, and are set on the web connecting plate (303) There are multiple through-holes；

First left plate (3011) of one end that the upper girder steel (301) does not contact with the top flange connecting plate (302) With the first right plate (3012) notch is arc-shaped to the longitudinal center line direction of the upper girder steel (301)；The lower girder steel (305) second left plate (3051) of the one end not contacted with the lower flange connecting plate (304) and the second right plate (3052) it is arc-shaped notch to the longitudinal center line direction of the upper girder steel (301).

2. the connecting node of a kind of steel core concrete column and girder steel according to claim 1, which is characterized in that the steel pipe Concrete column (1) further includes：Upper flange plate (102) and lower flange (103)；The joint core component (2) further includes：Upper company Connect ring flat-plate (201) and lower connection ring flat-plate (202)；

The upper connection ring flat-plate (201) is connected with the lower flange (103), the lower connection ring flat-plate (202) and the upper method Blue disk (102) is connected.

3. the connecting node of a kind of steel core concrete column and girder steel according to claim 2, which is characterized in that the upper company It connects ring flat-plate (201) and the top flange connecting plate (302) is connected, the lower connection ring flat-plate (202) and the lower flange connecting plate (304) it is connected.

4. the connecting node of a kind of steel core concrete column and girder steel according to claim 3, which is characterized in that described vertical Short connection web (207) is vertical between the upper connection ring flat-plate (201) and the lower connection ring flat-plate (202), and respectively with The upper connection ring flat-plate (201) and the lower connection ring flat-plate (202) are connected.

5. the connecting node of a kind of steel core concrete column and girder steel according to claim 1, which is characterized in that the upper steel The portion of upper surface of beam (301) and the portion lower surface of the top flange connecting plate (302) are affixed；The lower girder steel (305) Portion lower surface and the portion of upper surface of the lower flange connecting plate (304) are affixed；The upper girder steel (301) and the lower girder steel (305) orthogonal connected with the web connecting plate (303) respectively.

6. according to a kind of connecting node of steel core concrete column and girder steel of claim 1-5 any one of them, which is characterized in that Described be connected is bolted.

7. the connecting node of a kind of steel core concrete column and girder steel according to claim 1, which is characterized in that described cementing By being in the milk, binder is cementing.

8. the connecting node of a kind of steel core concrete column and girder steel according to claim 2, which is characterized in that the steel pipe Concrete column (1) further includes：Ribbed stiffener (104) and top service sleeve (106)；The steel core concrete column (1) is respectively and institute State upper flange plate (102) and the lower flange (103) welding；The ribbed stiffener (104) respectively with the steel pipe (101), institute State upper flange plate (102) and the lower flange (103) welding；The top service sleeve (106) is embedded in the core in advance Heart concrete (105) top, the lower part embedded bar (107) are embedded in the core concrete (105) lower part in advance.

9. the connecting node of a kind of steel core concrete column and girder steel according to claim 8, which is characterized in that the node Core component (2) further includes：Core space service sleeve (205) and core space embedded bar (206)；The upper connection ring flat-plate (201) it is welded with the upper end of the core space steel pipe (203), the lower connection ring flat-plate (202) and the core space steel pipe (203) Lower end welding；The core space steel pipe (203) and vertical short connection web (207) welding, the core space steel pipe (203) internal filling core space concrete (204)；It is mixed that the core space service sleeve (205) is embedded in the core space in advance Solidifying soil (204) top, the core space embedded bar (206) is embedded in core space concrete (204) lower part in advance, described Core space embedded bar (206) is corresponding with top service sleeve (106) position.

10. the connecting node of a kind of steel core concrete column and girder steel according to claim 9, which is characterized in that under described Ring flange (103) is corresponding with the upper bolt hole position of connection ring flat-plate (201), the upper flange plate (102) and the lower company The bolt hole position for connecing ring flat-plate (202) corresponds to；The lower part embedded bar (107) and the core space service sleeve (205) position Correspondence is set, the web connecting plate (303) is corresponding with the vertical short connection bolt hole position of web；The top flange connection Plate (302) is corresponding with the bolt hole position on the upper connection ring flat-plate (201) and the lower connection ring flat-plate (202) respectively.