CN215759557U - Steel pipe concrete column-steel beam prefabricated combination connecting joint - Google Patents
Steel pipe concrete column-steel beam prefabricated combination connecting joint Download PDFInfo
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- CN215759557U CN215759557U CN202120949661.4U CN202120949661U CN215759557U CN 215759557 U CN215759557 U CN 215759557U CN 202120949661 U CN202120949661 U CN 202120949661U CN 215759557 U CN215759557 U CN 215759557U
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Abstract
The utility model discloses a concrete filled steel tube column-steel beam prefabricated combined connecting node, which relates to the technical field of connecting nodes of building structures and comprises a concrete filled steel tube upper column, a concrete filled steel tube lower column, a left steel beam, a right steel beam and a node connecting piece body, wherein the upper concrete filled steel tube column, the lower concrete filled steel tube column, the left steel beam and the right steel beam are coaxially arranged along the longitudinal direction, the node connecting piece body is arranged among the left steel beam, the right steel beam, the upper concrete filled steel tube column and the lower concrete filled steel tube column, and the node connecting piece body comprises an outer steel tube used for connecting the upper concrete filled steel tube column and the lower concrete filled steel tube column and an L-shaped steel plate used for connecting the left steel beam and the right steel beam. The prefabricated combined node solves the problems of complex construction and poor stress capability of the existing steel pipe concrete column-column and column-steel beam node structures, has definite stress path, can effectively transmit bending moment, plays the roles of strengthening the node and weakening the steel beam, can ensure that the plastic hinge is far away from the node under the action of earthquake load, and is convenient for later-stage repair.
Description
Technical Field
The utility model relates to a connected node technical field of building structure, concretely relates to precast combination connected node of concrete filled steel tubular column-post-girder steel.
Background
With the development of building structures, steel-concrete composite structures are widely applied, wherein steel pipe concrete structures are widely applied, the steel pipe concrete structures are formed by pouring concrete into steel pipes and tamping, the steel pipe concrete structures fully play the mechanical properties of materials of concrete bearing pressure and steel bearing tension in the stress process, and the application of the steel is beneficial to reducing the cross section of the concrete structures, and conversely, the concrete can also reduce the requirement on fire resistance in the steel structures, and the steel and concrete have the advantages of high construction speed, high industrialization degree and the like under the synergistic effect, so that the steel-concrete composite structures are widely applied to structures such as single-layer and multi-layer industrial plants, high-rise buildings, bridges and the like.
At present, most of steel pipe concrete columns and column joints or steel pipe concrete columns and steel beam joints have the problems of complex structural construction, concentrated welding seams, uneven stress performance, easy deformation, influence on construction efficiency and the like, and safety accidents are easily caused once the welding seams are accidentally damaged. The secondary column-column connecting node and the column-beam connecting node are arranged independently, so that the manufacturing cost of the node is increased, manpower and time are consumed, and the construction efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The novel purpose is that: the prefabricated combined joint of the steel pipe concrete column, the column and the steel beam is clear in stress path, can effectively transmit bending moment, achieves the purposes of strengthening the joint and weakening the steel beam, can enable a plastic hinge to be far away from the joint under the action of earthquake load, and is convenient for later-stage repair.
In order to achieve the purpose, the novel technical scheme is as follows:
the utility model provides a precast combination connected node of concrete filled steel tube post-girder steel, includes along the concrete filled steel tube upper column, the concrete filled steel tube lower column of vertical coaxial setting, the left girder steel and the right girder steel that set up along the level in the left and right sides of the junction of concrete filled steel tube upper column, concrete filled steel tube lower column to and set up the node connecting piece body between left girder steel, right girder steel, concrete filled steel tube upper column, concrete filled steel tube lower column, node connecting piece body including be used for connecting the outer steel pipe of concrete filled steel tube upper column and concrete filled steel tube lower column, be used for connecting the L shape steel sheet of left girder steel and right girder steel.
Preferably, the upper steel pipe concrete column and the lower steel pipe concrete column respectively comprise a steel pipe layer with a square cross section and core concrete poured inside the steel pipe layer, and the inner surface of the outer steel pipe is in clearance fit with the outer surface of the steel pipe layer; the left steel beam and the right steel beam are both formed by I-shaped steel, the bottom plate of the L-shaped steel plate is fixedly connected with the flange plate of the I-shaped steel, and the side plate of the L-shaped steel plate is fixedly connected with the outer steel pipe.
Preferably, the L-shaped steel plates are respectively installed at the included angle between the upper concrete filled steel tube column and the lower concrete filled steel tube column and the upper and lower flange plates of the left and right steel beams, the side plates of the 2L-shaped steel plates located on the same horizontal plane and the pipe walls of the outer steel pipes corresponding thereto, the steel pipe layers and the core concrete of the upper concrete filled steel tube column or the lower concrete filled steel tube column installed in the outer steel tubes are provided with through bolt reserved holes which are mutually communicated, the side plates of the 2L-shaped steel plates located on the same horizontal plane and the pipe walls of the outer steel pipes corresponding thereto, and the steel pipe layers and the core concrete of the upper concrete filled steel tube column or the lower concrete filled steel tube column installed in the outer steel tubes are fixedly connected by through high-strength bolts which are communicated with the through bolt reserved holes.
Preferably, a plurality of bolt holes are uniformly formed in the front side and the rear side of the upper flange plate and the lower flange plate of the left steel beam and the right steel beam, through holes corresponding to the bolt holes are formed in the bottom plate of the L-shaped steel plate, and the L-shaped steel plate is fixedly connected with the flange plates through high-strength bolts penetrating through the through holes and the bolt holes.
Preferably, the end parts of the left and right walls of the steel pipe layer of the upper steel pipe concrete column and the lower steel pipe concrete column and the corresponding outer steel pipe wall are provided with straight holes, the sizes of the straight holes on the steel pipe layer and the outer steel pipe wall are the same, and when the two are aligned, the reserved holes of the through long bolts are aligned with each other.
Preferably, the outer surface of the side plate of the L-shaped steel plate is abutted against the inner surface of the side wall of the steel pipe layer, and the bottom plate penetrates through the 2 linear holes and extends to the upper surface of the flange plate.
Preferably, a column end supporting piece is also connected between the ends of the upper steel pipe concrete column and the lower steel pipe concrete column in the outer steel pipe in an extrusion manner.
Preferably, the column end supporting member comprises an inner steel tube and an X-shaped stiffening rib welded in the inner steel tube, the outer surface of the tube wall of the inner steel tube abuts against the inner surface of the tube wall of the outer steel tube, and the upper end and the lower end of the inner steel tube abut against the end portions of the steel tube layer of the upper steel tube concrete column and the lower steel tube concrete column respectively.
Preferably, the size of the inner cavity section of the inner steel pipe is the same as that of the inner cavity section of the steel pipe layer, two ends of the through-length high-strength bolt are fixed through double nuts respectively, and the end parts of the left steel beam and the right steel beam are welded with the outer surface of the outer steel pipe.
Preferably, the width of the L-shaped steel plate is the same as the width of the flange plate and the width of the inner surface of the side wall of the steel pipe layer.
The novel steel pipe concrete column-steel beam prefabricated combined connecting joint has the following beneficial effects:
1. this novel node simple structure, the welding seam area is little, and the construction of being convenient for improves connection stability through high strength bolt, can play joint support's effect through high strength bolt when the welding seam damages, improves node structure atress ability.
2. The L-shaped steel plate of the novel node is embedded into the concrete filled steel tubular column, has the semi-steel characteristic, and improves the shearing resistance and bending moment resistance of the node.
3. Adopt between L shape steel sheet, outer steel pipe and the steel core concrete column to wear the muscle formula to connect through long high strength bolt, its effect is equivalent to the inner baffle, can effectively transmit pulling force and the pressure on the edge of a wing about the girder steel, and the while has the advantage such as biography power is direct, save steel than outer baffle node.
4. This novel can realize being connected of post and post, post and roof beam simultaneously, overcome prior art in the many defect of structural connection node, reduced installation cost of manufacture, improved the efficiency of construction.
5. This novel node does not have the regional reinforcing bar of node and arranges crowdedly, connects complicated scheduling problem, can pass through the bending moment bearing capacity of transform connecting piece size and high strength bolt quantity control combination node, makes the node have good plastic deformation ability, realizes the ductility node design theory.
Drawings
FIG. 1 is a schematic structural view of the novel installation;
FIG. 2 is a schematic view of the novel split structure;
FIG. 3 is a schematic structural view of the novel steel beam;
FIG. 4 is a schematic structural view of the novel nodal connection member body;
FIG. 5 is a schematic view of a split structure of the novel node connector body;
FIG. 6 is a schematic view of the split structure of the novel column end support;
in the figure: 1. steel pipe concrete upper column; 2. a steel pipe concrete lower column; 3. a steel beam; 3a, a left steel beam; 3b, a right steel beam; 4. a node connector body; 4a, an outer steel pipe; 4b, a column end support; 4c, X-shaped stiffening ribs; 4d, inner steel pipes; 4e, an L-shaped steel plate; 5. passing through a high-strength bolt; 6. a high strength bolt; 7. a nut; 8. a through hole; 9. a straight hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
As shown in fig. 1-6:
a steel pipe concrete column-steel beam prefabricated combination connecting joint comprises a steel pipe concrete upper column 1 and a steel pipe concrete lower column 2 which are coaxially arranged along the longitudinal direction, a left steel beam 3a and a right steel beam 3b which are horizontally arranged at the left end and the right end of the joint of the steel pipe concrete upper column 1 and the steel pipe concrete lower column 2, and a joint connecting piece body 4 arranged among the left steel beam 3a, the right steel beam 3b, the steel pipe concrete upper column 1 and the steel pipe concrete lower column 2, wherein the joint connecting piece body 4 comprises an outer steel pipe 4a for connecting the steel pipe concrete upper column 1 and the steel pipe concrete lower column 2, and an L-shaped steel plate 4e for connecting the left steel beam 3a and the right steel beam 3 b;
the steel pipe concrete upper column 1 and the steel pipe concrete lower column 2 respectively comprise a steel pipe layer with a square cross section and core concrete poured inside the steel pipe layer, and the inner surface of the outer steel pipe 4a is in clearance fit with the outer surface of the steel pipe layer; the left steel beam 3a and the right steel beam 3b are both made of I-steel, a bottom plate of the L-shaped steel plate 4e is fixedly connected with a flange plate of the I-steel, and a side plate of the L-shaped steel plate 4e is fixedly connected with the outer steel pipe 4 a;
the L-shaped steel plates 4e are respectively arranged at the included angles of the upper concrete filled steel tube column 1, the lower concrete filled steel tube column 2, the left steel beam 3a and the upper and lower flange plates of the right steel beam 3b, the side plates of the 2L-shaped steel plates 4e positioned on the same horizontal plane and the pipe wall of the outer steel tube 4a corresponding to the side plates, the steel pipe layer of the upper concrete filled steel tube column 1 or the lower concrete filled steel tube column 2 and the core concrete arranged in the outer steel tube 4a are provided with through bolt reserved holes communicated with each other, the side plates of the 2L-shaped steel plates 4e positioned on the same horizontal plane and the pipe wall of the outer steel tube 4a corresponding to the through bolt reserved holes, and the steel pipe layer of the upper concrete filled steel tube column 1 or the lower concrete filled steel tube column 2 and the core concrete arranged in the outer steel tube 4a are fixedly connected through high-strength bolts 5 communicated with the through bolt reserved holes;
a plurality of bolt holes are uniformly formed in the front and rear sides of the upper and lower flange plates of the left steel beam 3a and the right steel beam 3b, through holes 8 corresponding to the bolt holes are formed in the bottom plate of the L-shaped steel plate 4e, and the L-shaped steel plate is fixedly connected with the flange plates through high-strength bolts 6 penetrating through the through holes 8 and the bolt holes;
the end parts of the left and right walls of the steel pipe layer of the steel pipe concrete upper column 1 and the steel pipe concrete lower column 2 and the corresponding outer steel pipe wall are respectively provided with a linear hole 9, the linear holes 9 on the steel pipe layer and the outer steel pipe 4a are same in size, and when the two are aligned, the reserved holes of the through long bolts are aligned with each other;
the outer surface of the side plate of the L-shaped steel plate 4e is abutted against the inner surface of the side wall of the steel pipe layer, and the bottom plate penetrates through the 2 linear holes 9 and extends to the upper surface of the flange plate;
a column end support member 4b is also connected between the ends of the upper steel pipe concrete column 1 and the lower steel pipe concrete column 2 in the outer steel pipe in an extrusion manner;
the column end supporting piece 4b comprises an inner steel tube 4d and an X-shaped stiffening rib 4c welded in the inner steel tube 4d, the outer surface of the tube wall of the inner steel tube 4d is abutted against the inner surface of the tube wall of the outer steel tube, and the upper end and the lower end of the inner steel tube 4d are abutted against the end parts of the steel tube layers of the steel tube concrete upper column 1 and the steel tube concrete lower column 2 respectively;
the size of the section of the inner cavity of the inner steel pipe is the same as that of the section of the inner cavity of the steel pipe layer, two ends of the through-length high-strength bolt 5 are fixed through double nuts 7 respectively, and the end parts of the left steel beam and the right steel beam are welded with the outer surface of the outer steel pipe;
the width of the L-shaped steel plate 4e is the same as the width of the flange plate and the width of the inner surface of the side wall of the steel pipe layer.
This neotype theory of use:
when the steel pipe concrete upper column is used, the end parts of the steel pipe concrete upper column 1 and the steel pipe concrete lower column 2 are respectively inserted into the outer steel pipe, after the steel pipe concrete upper column and the steel pipe concrete lower column are accurately positioned through the linear holes 9, the L-shaped steel plate 4e is installed, the outer surface of the side plate of the L-shaped steel plate 4e is abutted against the inner surface of the side wall of the steel pipe layer, and the bottom plate penetrates through the 2 linear holes 9 and extends to the upper surface of the flange plate; a through-long high-strength bolt 5 is inserted into the through-long bolt reserved hole, two ends of the through-long high-strength bolt are fixed by double nuts 7, the bottom plate of the L-shaped steel plate 4e is fixed with the flange plate through the high-strength bolt 6, at the moment, the column end support piece 4b is extruded in the outer steel tube between the ends of the upper steel tube concrete column 1 and the lower steel tube concrete column 2, the rigidity and the strength of the outer steel pipe can be enhanced, the end parts of the left steel beam and the right steel beam are welded with the outer surface of the outer steel pipe, the bottom plate and the flange plate are fixed by the high-strength bolt 6, even if the welding seam is cracked, the connection strength of the joint connecting piece body can be ensured, finally, concrete is poured into the steel pipe concrete upper column 1 and the steel pipe concrete lower column 2, the concrete also enters the outer steel pipe, thereby make node connecting piece body and girder steel, steel pipe concrete upper prop 1, steel pipe concrete lower prop 2 become a whole.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a precast combination connected node of steel core concrete column-post-girder steel which characterized in that: including following post, the concrete filled steel tube lower prop on the concrete filled steel tube that vertical coaxial set up, the left girder steel and the right girder steel that the end set up along the level about the department of meeting of post under the concrete filled steel tube upper prop, the concrete filled steel tube to and set up in left girder steel, right girder steel, the concrete filled steel tube upper prop, the concrete filled steel tube lower prop between the post node connecting piece body, node connecting piece body including the outer steel pipe that is used for connecting the concrete filled steel tube upper prop and the concrete filled steel tube lower prop, be used for connecting the L shape steel sheet of left girder steel and right girder steel.
2. A steel pipe concrete column-steel beam prefabricated combination connection node as claimed in claim 1, wherein: the steel pipe concrete upper column and the steel pipe concrete lower column respectively comprise a steel pipe layer with a square cross section and core concrete poured inside the steel pipe layer, and the inner surface of the outer steel pipe is in clearance fit with the outer surface of the steel pipe layer; the left steel beam and the right steel beam are both formed by I-shaped steel, the bottom plate of the L-shaped steel plate is fixedly connected with the flange plate of the I-shaped steel, and the side plate of the L-shaped steel plate is fixedly connected with the outer steel pipe.
3. A steel pipe concrete column-steel beam prefabricated combination connection node as claimed in claim 2, wherein: the L-shaped steel plates are respectively arranged at included angles of upper and lower flange plates of the concrete-filled steel tube upper column and the concrete-filled steel tube lower column, the left steel beam and the right steel beam, side plates of the 2L-shaped steel plates on the same horizontal plane and pipe walls of outer steel pipes corresponding to the side plates, steel pipe layers of the concrete-filled steel tube upper column or the concrete-filled steel tube lower column and core concrete which are arranged in the outer steel tubes are provided with through long bolt reserved holes which are communicated with each other, the side plates of the 2L-shaped steel plates on the same horizontal plane and pipe walls of the outer steel pipes corresponding to the side plates, and the steel pipe layers of the concrete-filled steel tube upper column or the concrete-filled steel tube lower column and the core concrete are fixedly connected through long high-strength bolts which are communicated with the through long bolt reserved holes.
4. A steel pipe concrete column-steel beam prefabricated combination connection node as claimed in claim 3, wherein: the front and back sides of the upper and lower flange plates of the left steel beam and the right steel beam are uniformly provided with a plurality of bolt holes, and the bottom plate of the L-shaped steel plate is provided with through holes corresponding to the bolt holes and is fixedly connected with the flange plates through high-strength bolts penetrating through the through holes and the bolt holes.
5. A steel pipe concrete column-steel beam prefabricated combination connection node as claimed in claim 4, wherein: the steel pipe concrete upper column and the steel pipe concrete lower column are characterized in that linear holes are formed in the end portions of the left wall and the right wall of the steel pipe layer of the steel pipe concrete upper column and the end portions of the left wall and the right wall of the corresponding outer steel pipe wall, the linear holes in the steel pipe layer and the outer steel pipe wall are identical in size, and when the linear holes and the outer steel pipe wall are aligned with each other, all through long bolt reserved holes are aligned with each other.
6. A steel pipe concrete column-steel beam prefabricated combination connection node as claimed in claim 5, wherein: the outer surface of the side plate of the L-shaped steel plate is abutted to the inner surface of the side wall of the steel pipe layer, and the bottom plate penetrates through the 2 linear holes and extends to the upper surface of the flange plate.
7. A steel pipe concrete column-steel beam prefabricated combination connection node as claimed in claim 6, wherein: and a column end supporting piece is also connected between the end parts of the outer steel pipe inner and the steel pipe concrete upper column and the steel pipe concrete lower column in an extruding way.
8. A steel pipe concrete column-steel beam prefabricated combination connection node as claimed in claim 7, wherein: the column end supporting piece comprises an inner steel tube and X-shaped stiffening ribs welded in the inner steel tube, the outer surface of the tube wall of the inner steel tube abuts against the inner surface of the tube wall of the outer steel tube, and the upper end and the lower end of the inner steel tube abut against the end portions of the steel tube layers of the steel tube concrete upper column and the steel tube concrete lower column respectively.
9. A steel core concrete column-steel beam prefabricated combination connection node as claimed in claim 8, wherein: the size of the inner cavity section of the inner steel pipe is the same as that of the inner cavity section of the steel pipe layer, two ends of the through long high-strength bolt are fixed through double nuts respectively, and the end parts of the left steel beam and the right steel beam are welded with the outer surface of the outer steel pipe.
10. A steel core concrete column-steel beam prefabricated combination connection node as claimed in any one of claims 2-9, wherein: the width of the L-shaped steel plate is the same as that of the flange plate and that of the inner surface of the side wall of the steel pipe layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120949661.4U CN215759557U (en) | 2021-05-06 | 2021-05-06 | Steel pipe concrete column-steel beam prefabricated combination connecting joint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120949661.4U CN215759557U (en) | 2021-05-06 | 2021-05-06 | Steel pipe concrete column-steel beam prefabricated combination connecting joint |
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| CN215759557U true CN215759557U (en) | 2022-02-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775799A (en) * | 2022-05-25 | 2022-07-22 | 湖南科技大学 | Hoop type steel reinforced concrete beam column dry type node structure |
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2021
- 2021-05-06 CN CN202120949661.4U patent/CN215759557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775799A (en) * | 2022-05-25 | 2022-07-22 | 湖南科技大学 | Hoop type steel reinforced concrete beam column dry type node structure |
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