CN212772876U - Novel assembly type steel-concrete combined node with large deformation and restorable functions - Google Patents
Novel assembly type steel-concrete combined node with large deformation and restorable functions Download PDFInfo
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- CN212772876U CN212772876U CN202021033240.9U CN202021033240U CN212772876U CN 212772876 U CN212772876 U CN 212772876U CN 202021033240 U CN202021033240 U CN 202021033240U CN 212772876 U CN212772876 U CN 212772876U
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Abstract
The utility model relates to the field of building structures, and discloses a novel assembly type steel-concrete combined node with large deformation and restorable functions, which comprises a steel reinforced concrete column, a steel beam and a force transmission assembly; the steel reinforced concrete column comprises a steel reinforced column, longitudinal stress steel bars and stirrups, the force transmission assembly comprises an upper flange annular connecting plate and a lower flange annular connecting plate and a web connecting plate, and the flange annular connecting plates are sleeved on the steel reinforced column; the web connecting plate is vertically fixed between the upper flange circumferential connecting plate and the lower flange circumferential connecting plate; the steel beam is connected with the web connecting plate through a rotating shaft. The utility model can flexibly connect steel beams in different directions through the force transmission assembly, has simple connection structure and definite force transmission path, and can realize the purposes of large deformation and energy dissipation of nodes through the plastic deformation of the flange connecting plate and the rotation performance of the beam end rotating hinge; the utility model discloses have good monolithic connectivity, bearing capacity, anti-seismic performance and durability, take place to destroy the back removable and resume normal use function.
Description
Technical Field
The utility model relates to a building structure field particularly, relates to a novel assembled steel-concrete composite node with big deformation and retrieval function.
Background
The fabricated building structure at the present stage mainly takes a fabricated precast concrete structure and a fabricated steel structure as main components, and the two structures form a system and have the characteristics respectively. The prefabricated concrete structure has the advantages of good structural performance, high product quality, relatively low cost, most extensive application and the like; but also has the defects of low bearing capacity, difficult reinforcement binding at the joint of the beam-column joint, difficult guarantee of concrete pouring quality and steel sleeve grouting quality and suitability for multi-storey and small high-rise buildings. The fabricated steel structure has the advantages of good earthquake resistance and simple connection mode (welding, bolt or rivet connection), can be widely applied to public buildings and high-rise buildings such as large-scale factory buildings, venues, airports and the like, but has higher requirements on manufacturing and mounting precision, is easily influenced by acid gas and fire because steel structural components are exposed in the air environment, and has poorer fire resistance and corrosion resistance.
The most desirable structure is to combine the advantages of prefabricated concrete structures and prefabricated steel structures, however, the research and development of prefabricated steel-concrete composite structures are still in the initial stage, and especially, the research on prefabricated steel-reinforced concrete composite structures and beam-column joints thereof is less common. Therefore, based on the characteristics of the prefabricated concrete structure and the steel structure, the application provides a novel prefabricated steel-concrete combined node with large deformation and restorable functions.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at to current assembled precast concrete structure and assembled steel construction not enough, provide a novel assembled steel concrete composite node that has big deformation and restorable function that combines two kinds of structure advantages.
In order to achieve the purpose, the novel assembly type steel-concrete combined joint with large deformation and restorable functions comprises a steel reinforced concrete column, a steel beam and a force transmission assembly;
the steel reinforced concrete column comprises a steel reinforced column wrapped with concrete, longitudinal stressed steel bars and stirrups, wherein the concrete is poured in the steel reinforced column, the longitudinal stressed steel bars are arranged around the outer side of the steel reinforced column, and the stirrups are bound on the longitudinal stressed steel bars;
the force transmission assembly comprises an upper flange annular connecting plate, a lower flange annular connecting plate and a web connecting plate, wherein an opening matched with the peripheral size of the steel column is formed in the flange annular connecting plates, and the upper flange annular connecting plate and the lower flange annular connecting plate are sleeved on the steel column; the web connecting plate is vertically fixed between the upper flange annular connecting plate and the lower flange annular connecting plate, one end of the web connecting plate is vertically fixed on the steel rib column, the other end of the web connecting plate is connected with the steel beam, and one end of the web connecting plate connected with the steel beam is semicircular;
the web of the one end that girder steel and web connecting plate are connected is semi-circular, and the semicircular one end of girder steel web and web connecting plate all is provided with the rotation shaft hole, and both pass through rotation axis connection, and the flange board and the edge of a wing hoop connecting plate of girder steel pass through the edge of a wing connecting plate and are connected.
Preferably, column end connecting plates are arranged at two ends of each steel rib column, bolt holes are formed in four corners of each steel rib column, the column end connecting plates of the upper steel rib column and the lower steel rib column are connected through bolts, through holes corresponding to longitudinal stress steel bars are formed in circumferential flange connecting plates, and after the longitudinal stress steel bars penetrate through the circumferential flange connecting plates, two ends of each longitudinal stress steel bar are welded and fixed with the column end connecting plates respectively.
Preferably, the bottom of reinforcing steel column is provided with the column end connecting plate, and the upper flange ring sets up in reinforcing steel column top to the connecting plate, and the column end connecting plate of upper steel column and the upper flange ring on the lower floor reinforcing steel column pass through high strength bolt connection to the connecting plate, and the one end of vertical atress reinforcing bar is fixed on the column end connecting plate, and the other end is fixed on upper flange ring is to the connecting plate.
Preferably, the column shoe is further fixed on the bolt hole on the inner side face of the column end connecting plate, and correspondingly, one end, extending to the column end connecting plate, of the longitudinal stressed steel bar is bent inwards and contracted to avoid the column shoe.
Preferably, the upper layer steel rib column and the lower layer steel rib column are connected through a steel rib sleeve, the lower end of the upper layer steel rib column and the upper end of the lower layer steel rib column are respectively inserted into the steel rib sleeve and are connected with the steel rib sleeve through a one-way bolt, and the longitudinal stressed steel bars of the upper layer and the lower layer are in lap joint welding.
Preferably, three stiffening plates are further fixed on the steel skeleton column, and the three stiffening plates and the web connecting plate are in a cross-shaped structure.
Preferably, the stirrups in the nodes are divided into four sections, and two ends of each section of stirrups are respectively connected with the stiffening plate or the web connecting plate.
Preferably, the outer surface of the steel rib column is also provided with shear studs.
Preferably, the upper side and the lower side of the rotating shaft hole are also provided with bolt holes, and the steel beam web plate is connected with the web plate connecting plate through bolts.
Preferably, the steel skeleton column is a square steel skeleton column, a circular steel skeleton column or a cross-shaped steel skeleton column.
The utility model discloses following beneficial effect has:
(1) the novel assembly type steel-concrete combined node can flexibly connect steel beams in different directions through the annular connecting plate and the web connecting plate, has simple connecting structure and definite force transmission path, and can realize the purposes of large deformation and energy dissipation of the node through the plastic deformation of the flange connecting plate and the rotation performance of the beam end rotating hinge;
(2) the novel assembly type steel-concrete combined node has good overall connectivity, bearing capacity, anti-seismic performance and durability, and can be replaced and recovered to normal use function after the flange connecting plate is damaged;
(3) the utility model discloses a novel assembled steel and concrete combination node, its preparation all can be accomplished at the processing factory with being connected, during site operation, only need carry out the dry-type through the bolt and connect, shortens construction cycle greatly, improves assembly efficiency, and application prospect is very wide.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of a steel reinforced concrete column;
FIG. 3 is an exploded view of the force transfer assembly connected to the steel column and the steel beam;
FIG. 4 is a schematic view showing the connection of upper and lower steel skeleton columns according to embodiment 2;
FIG. 5 is a schematic view showing the connection of upper and lower steel skeleton columns according to embodiment 3;
wherein the figures include the following reference numerals: 1. a steel reinforced concrete column; 11. a steel skeleton column; 12. longitudinal stressed steel bars; 13. hooping; 14. a column end connecting plate; 15. a column shoe; 2. a steel beam; 21. a rotating shaft; 22. a flange connecting plate; 3. a force transfer assembly; 31. a flange ring is connected with the connecting plate; 32. a web connecting plate; 33. a stiffening plate; 4. a steel skeleton sleeve is provided.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the novel assembly type steel-concrete combined joint with large deformation and restorable function of the invention comprises a steel reinforced concrete column 1, a steel beam 2 and a force transmission assembly 3;
the steel reinforced concrete column comprises a steel reinforced column 11 wrapped with concrete, a longitudinal stressed steel bar 12 and a stirrup 13, wherein the steel reinforced column is a square steel reinforced column, a circular steel reinforced column or a cross-shaped steel reinforced column, and the square steel reinforced column is taken as an example for explanation in the embodiment.
As shown in fig. 2, column end connecting plates 14 are arranged at two ends of a steel column 11, bolt holes are arranged at four corners of each column end connecting plate, column end connecting plates of an upper steel column and a lower steel column are connected through bolts, longitudinal stress steel bars are arranged around the outer sides of the steel columns, and stirrups are bound on the longitudinal stress steel bars;
as shown in fig. 3, the force transmission assembly 3 comprises an upper flange circumferential connecting plate 31, a lower flange circumferential connecting plate 31 and a web connecting plate 32, wherein an opening matched with the peripheral dimension of the steel column is formed in the flange circumferential connecting plate, the upper flange circumferential connecting plate and the lower flange circumferential connecting plate are sleeved on the steel column, through holes corresponding to longitudinal stress steel bars are formed in the flange circumferential connecting plates, and the two ends of the longitudinal stress steel bars penetrate through the flange circumferential connecting plates and are fixedly connected with column end connecting plates respectively; the web connecting plate is vertically fixed between the upper flange annular connecting plate and the lower flange annular connecting plate, one end of the web connecting plate is vertically fixed on the steel rib column, the other end of the web connecting plate is connected with the steel beam, and one end of the web connecting plate connected with the steel beam is semicircular; three stiffening plates 33 are fixed on the steel skeleton column, the three stiffening plates and the web connecting plate are in a cross-shaped structure, the node is provided with the stiffening plates and the web connecting plate, so that the stirrups in the node area are divided into four sections, and two ends of each section of stirrups are respectively fixedly connected with the stiffening plates or the web connecting plate.
The web of girder steel 2 and the one end that the web connecting plate is connected is semi-circular, and the semicircular one end of girder steel web and web connecting plate all is provided with the rotation shaft hole, and both pass through axis of rotation 21 and connect, and in order to increase the rotation deformation of junction, the upper and lower both sides in rotation shaft hole still are provided with the bolt hole, and the girder steel web further passes through bolted connection with the web connecting plate. The flange plate and the flange circumferential connecting plate of the steel beam are connected through a flange connecting plate 22, and the flange connecting plate and the flange circumferential connecting plate are connected through high-strength bolts.
The assembling method of the novel assembly type steel-concrete combined node comprises the following steps:
the first step is as follows: concrete is poured in the square steel column;
the second step is that: installing upper and lower flange circumferential connecting plates on the square steel rib column and welding and fixing the upper and lower flange circumferential connecting plates, welding and fixing column end connecting plates at two ends of the square steel rib column, and welding web connecting plates and stiffening plates;
the third step: penetrating longitudinal stressed steel bars through the through holes of the circumferential connecting plates of the upper flange and the lower flange, welding two ends of the longitudinal stressed steel bars to the connecting plates at the column ends, and binding stirrups;
the fourth step: placing the steel skeleton manufactured in the third step in a template to pour concrete to obtain a steel reinforced concrete column;
in order to improve the binding force between the steel reinforced column and the concrete, shear-resistant studs are welded on all surfaces (except for node areas) of the steel reinforced column; in order to prevent the bolt holes in the column end connecting plates from being blocked when concrete is poured, column shoes are further fixed on the bolt holes in the inner side surfaces of the upper column end connecting plate and the lower column end connecting plate of the steel rib column, and the bolt holes are blocked by the column shoes; correspondingly, the two ends of the longitudinal stressed steel bar are bent inwards to avoid the column shoe.
The fifth step: connecting a web plate of the steel beam with a web plate connecting plate, and connecting a flange plate of the steel beam with a flange annular connecting plate;
and a sixth step: and connecting the upper and lower steel pipe columns.
Example 2
The difference of this embodiment and embodiment 1 lies in, only is provided with the column end connecting plate in the bottom of reinforcing bar post, and the last flange ring of biography power subassembly is located the top of reinforcing bar post to the connecting plate, and the column end connecting plate of upper steel reinforcing bar post passes through high strength bolt connection to the connecting plate with the last flange ring on the reinforcing bar post of lower floor, and the one end of vertical atress reinforcing bar is fixed on the column end connecting plate, and the other end is fixed on last flange ring connecting plate, and the one end of only fixing on the column end connecting plate is inwards buckled and is contracted in order to avoid the column boot. As shown in fig. 4.
The assembling method of the novel assembly type steel-concrete combined node comprises the following steps:
the first step is as follows: concrete is poured in the square steel column;
the second step is that: installing an upper flange circumferential connecting plate on the top of the square steel rib column and welding and fixing the upper flange circumferential connecting plate, installing a lower flange circumferential connecting plate, welding a web connecting plate and a stiffening plate, and welding and fixing a column end connecting plate at the bottom of the square steel rib column;
the third step: fixing one end of a longitudinal stressed steel bar on the column end connecting plate, and fixing the other end of the longitudinal stressed steel bar on the upper flange circumferential connecting plate;
the fourth step: placing the steel skeleton manufactured in the third step in a template to pour concrete to obtain a steel reinforced concrete column;
the fifth step: connecting a web plate of the steel beam with a web plate connecting plate, and connecting a flange plate of the steel beam with a flange annular connecting plate;
and a sixth step: and connecting the upper and lower steel pipe columns.
Example 3
The difference of this embodiment and embodiment 1 lies in, steel reinforcing column both ends do not all set up the column end connecting plate, and upper strata steel reinforcing column and lower floor's steel reinforcing column pass through steel reinforcing sleeve and connect, and the lower extreme of upper strata steel reinforcing column and the upper end of lower floor's steel reinforcing column insert the steel reinforcing sleeve respectively in, pass through high strength bolt with the steel reinforcing sleeve and connect, the vertical atress reinforcing bar overlap joint welding of upper and lower floor. As shown in fig. 5.
Because the upper steel rib column and the lower steel rib column are connected by the steel rib sleeve, a section for arranging bolt holes needs to be reserved at the bottom of the upper steel rib column and the top of the lower steel rib column, concrete cannot be poured in the steel rib columns firstly during assembly as in embodiment 1, and the upper steel rib column and the lower steel rib column need to be poured after connection. Because the column end connecting plate and the column shoe are not arranged, the two ends of the longitudinal stress steel bar do not need to be bent and contracted.
The assembling method of the novel assembly type steel-concrete combined node comprises the following steps:
the first step is as follows: installing upper and lower flange circumferential connecting plates on the square steel rib column and welding and fixing the upper and lower flange circumferential connecting plates, and welding a web connecting plate and a stiffening plate;
the second step is that: installing longitudinal stressed steel bars and binding stirrups;
the third step: connecting the steel rib columns of the upper layer and the lower layer through steel rib sleeves, and pouring concrete in the steel rib columns;
the fourth step: placing the steel skeleton manufactured in the third step in a template to pour concrete to obtain a steel reinforced concrete column;
the fifth step: and connecting a web plate of the steel beam with the web plate connecting plate, and connecting a flange plate of the steel beam with the flange annular connecting plate.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A novel assembly type steel-concrete combined node with large deformation and recoverable function is characterized in that,
comprises a steel reinforced concrete column (1), a steel beam (2) and a force transmission assembly (3);
the steel reinforced concrete column (1) comprises a steel reinforced column (11) coated with concrete, longitudinal stress steel bars (12) and stirrups (13), wherein the steel reinforced column (11) is internally poured with concrete, the longitudinal stress steel bars (12) are arranged around the outer side of the steel reinforced column (11), and the stirrups (13) are bound on the longitudinal stress steel bars (12);
the force transmission assembly (3) comprises an upper flange circumferential connecting plate (31), a lower flange circumferential connecting plate (31) and a web connecting plate (32), wherein an opening matched with the peripheral size of the steel column (11) is formed in the flange circumferential connecting plate (31), and the upper flange circumferential connecting plate (31) and the lower flange circumferential connecting plate (31) are sleeved on the steel column (11); the web connecting plate (32) is vertically fixed between the upper flange annular connecting plate and the lower flange annular connecting plate (31), one end of the web connecting plate is vertically fixed on the steel rib column (11), the other end of the web connecting plate is connected with the steel beam (2), and one end of the web connecting plate connected with the steel beam (2) is semicircular;
the web of the one end that girder steel (2) and web connecting plate (32) are connected is semi-circular, and the semicircular one end of girder steel (2) web and web connecting plate (32) all is provided with the rotation shaft hole, and both are connected through axis of rotation (21), and the flange board of girder steel (2) is connected through flange connecting plate (22) with flange hoop connecting plate (31).
2. The novel assembly type steel-concrete combined node with large deformation and restorable function as claimed in claim 1, wherein column end connecting plates (14) are arranged at two ends of each steel column (11), bolt holes are arranged at four corners of each column end connecting plate (14), the column end connecting plates (14) of the upper steel column (11) and the lower steel column (11) are connected through bolts, through holes corresponding to the longitudinal stress steel bars (12) are arranged on the flange circumferential connecting plates (31), and after the longitudinal stress steel bars (12) pass through the flange circumferential connecting plates (31), the two ends are respectively welded and fixed with the column end connecting plates (14).
3. The novel assembly type steel-concrete combined node with large deformation and restorable function as claimed in claim 1, wherein a column end connecting plate (14) is arranged at the bottom of the steel reinforced column (11), an upper flange circumferential connecting plate (31) is arranged at the top of the steel reinforced column (11), the column end connecting plate (14) of the upper steel reinforced column (11) is connected with the upper flange circumferential connecting plate (31) on the lower steel reinforced column (11) through a high-strength bolt, one end of the longitudinal stress steel bar (12) is fixed on the column end connecting plate (14), and the other end of the longitudinal stress steel bar is fixed on the upper flange circumferential connecting plate (31).
4. The novel assembly type steel-concrete combined node with large deformation and recoverable function according to claim 2 or 3, characterized in that a column shoe (15) is further fixed on the bolt hole on the inner side surface of the column end connecting plate (14), and accordingly, one end of the longitudinal stress steel bar (12) extending to the column end connecting plate (14) is bent inwards and contracted to avoid the column shoe (15).
5. The novel assembly type steel-concrete combined node with large deformation and recoverable function as claimed in claim 1, wherein the upper layer steel-reinforced column (11) and the lower layer steel-reinforced column (11) are connected through a steel-reinforced sleeve (4), the lower end of the upper layer steel-reinforced column (11) and the upper end of the lower layer steel-reinforced column (11) are respectively inserted into the steel-reinforced sleeve (4) and are connected with the steel-reinforced sleeve (4) through a one-way bolt, and the longitudinal stressed steel bars (12) of the upper layer and the lower layer are welded in an overlapping manner.
6. The novel assembled steel-concrete combined node with large deformation and recoverable function as claimed in claim 1, wherein three stiffening plates (33) are further fixed on the steel skeleton column (11), and the three stiffening plates (33) and the web connecting plate (32) are in a cross-shaped structure.
7. The novel assembly type steel-concrete combined node with large deformation and recoverable function of claim 6, wherein the stirrups (13) in the node are divided into four sections, and two ends of each section of stirrup (13) are respectively connected with the stiffening plate (33) or the web connecting plate (32).
8. The novel assembly type steel-concrete combined node with large deformation and recoverable function as claimed in claim 1, wherein shear resistant studs are further arranged on the outer surface of the steel reinforced column (11).
9. The novel assembly type steel-concrete combined node with large deformation and recoverable function according to claim 1, wherein bolt holes are further formed in the upper side and the lower side of the hole in the rotating shaft (21), and a web plate of the steel beam (2) is further connected with the web connecting plate (32) through bolts.
10. The new assembly type steel-concrete composite node with large deformation and recoverable function as claimed in any one of claims 1 to 3 or 4 to 9, wherein the steel skeleton column (11) is a square steel skeleton column, a circular steel skeleton column or a cross steel skeleton column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021033240.9U CN212772876U (en) | 2020-06-08 | 2020-06-08 | Novel assembly type steel-concrete combined node with large deformation and restorable functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021033240.9U CN212772876U (en) | 2020-06-08 | 2020-06-08 | Novel assembly type steel-concrete combined node with large deformation and restorable functions |
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| Publication Number | Publication Date |
|---|---|
| CN212772876U true CN212772876U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021033240.9U Expired - Fee Related CN212772876U (en) | 2020-06-08 | 2020-06-08 | Novel assembly type steel-concrete combined node with large deformation and restorable functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212772876U (en) |
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2020
- 2020-06-08 CN CN202021033240.9U patent/CN212772876U/en not_active Expired - Fee Related
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