Open-web steel-reinforced concrete pier column and beam connection structure and construction process

Abstract

Disclosed in the present invention are an open-web steel-reinforced concrete pier column and beam connection structure and a construction method therefor. The open-web steel-reinforced concrete pier column and beam connection structure comprises a prefabricated open-web steel-reinforced concrete column (1), a prefabricated open-web steel-reinforced concrete beam (2) and a transition component, the prefabricated open-web steel-reinforced concrete column (1) being connected to the prefabricated open-web steel-reinforced concrete beam (2) by means of the transition component. The open-web steel-reinforced concrete pier column and beam connection structure achieves connection of the prefabricated open-web steel-reinforced concrete column (1) and the prefabricated open-web steel-reinforced concrete beam (2) by means of the transition component, such that the structure exhibits excellent overall performance and the shear capacity of the structure is improved, avoiding instability caused by excessive displacement under a seismic action, and achieves tight connection at beam-column edge joints to better transmit internal forces therebetween, so as to avoid hazardous areas caused by local stress concentration, thus having better bearing capacity, ductility, anti-seismic performance and overall stability compared with solid-web steel-reinforced concrete composite structures with a same amount of steel used.

Description

Connection structure and construction technology of hollow steel-concrete pier column and beam Technical Field

[0001] The embodiments of the present application relate to the field of construction technology, and in particular to a hollow steel-concrete pier column and beam connection structure and a construction process. Background Art

[0002] At present, concrete frame structure and steel frame structure are one of the two most widely used structural forms. In the frame structure, the node is the key part connecting the columns and beams, which plays the role of transmitting and redistributing internal forces and ensuring the integrity of the structure. Therefore, safe and reliable nodes can ensure the normal operation of the structure. As buildings (structures) develop towards super-high-rise, heavy-loaded and large-span structures, it is not easy for the structural system composed of ordinary concrete structures and steel structures to simultaneously meet the requirements of structural applicability, safety, economy and durability. In order to better promote the development of the structure, steel-concrete columns and steel-concrete beams can be combined to form a steel-concrete column and steel-concrete beam structural system to improve the overall bearing capacity, stiffness and seismic performance of the structure.

[0003] The hollow steel-concrete pier and beam connection structure is a composite structure composed of concrete, steel sections, and steel bars that bears force together and deforms in a coordinated manner. It can fully utilize the properties of both steel and concrete, and has the advantages of high bearing capacity, high rigidity, and good seismic performance. It is widely used in high-rise (super-high-rise) buildings, heavy-load structures, and large-span structures. Hollow steel-concrete pier and beam connection structures can be divided into two categories: solid-web type and hollow-web type according to the different internal steel distribution forms. Solid-web steel sections are usually made by welding steel plates or directly rolling steel sections, while hollow-web steel sections are generally made by connecting angle steel or channel steel with tie plates or tie bars to form a spatial truss-type skeleton. In comparison, the hollow steel-concrete pier and beam connection structure has the advantages of high bearing capacity, good ductility, high rigidity, light weight, and saving steel.

[0004] The inventors realized that hollow steel-concrete is a composite component consisting of a welded steel skeleton, a steel bar skeleton and concrete. The component itself is relatively complex. The use of on-site cast concrete construction will affect the construction progress and inevitably affect the quality of the structural system. In order to solve this problem, prefabricated hollow steel-concrete components can be used, that is, hollow steel-concrete components are prefabricated in a different location or factory, and then transported to the construction site for assembly. This construction method can fully guarantee the construction quality of the components and the system. Compared with traditional cast-in-place construction technology, prefabricated assembled building construction has largely solved practical problems such as poor construction quality, long construction period, and environmental pollution, and is more in line with the concept of green development. However, the most critical issue of prefabricated structures is the reliability of the connection of prefabricated components. How to ensure the reliable connection of prefabricated components has become a research hotspot.

[0005] Application Contents

[0006] This application aims to solve at least one of the technical problems existing in the prior art or related art.

[0007] To this end, a first aspect of the present application provides a hollow steel-concrete pier column and beam connection structure.

[0008] A second aspect of the present application provides a construction process.

[0009] In view of this, according to a first aspect of an embodiment of the present application, a hollow steel-concrete pier column and beam connection structure is proposed, comprising:

[0010] Precast hollow steel concrete columns;

[0011] Precast hollow steel concrete beam;

[0012] A transition assembly, through which the prefabricated hollow steel-concrete column is connected to the prefabricated hollow steel-concrete beam;

[0013] Wherein, the adapter assembly includes a steel plate, and the prefabricated hollow steel concrete column is connected to the prefabricated hollow steel concrete column through the steel plate.

[0014] In one possible implementation,

[0015] The prefabricated hollow steel concrete column comprises:

[0016] Steel sections within columns;

[0017] a first stud welded to the inner section steel of the column;

[0018] a first steel skeleton and a first concrete filling layer, wherein the first concrete filling layer wraps the column inner steel, the first studs and the first steel skeleton;

[0019] Wherein, the first steel skeleton comprises column longitudinal steel bars and prefabricated column stirrups;

[0020] The prefabricated hollow steel concrete beam comprises:

[0021] Beam inner steel;

[0022] a second stud welded to the inner steel section of the beam;

[0023] a second steel skeleton and a second concrete filling layer, wherein the second concrete filling layer wraps the column inner steel, the second studs and the second steel skeleton;

[0024] Wherein, the second steel bar skeleton includes beam longitudinal steel bars and prefabricated beam stirrups.

[0025] In a feasible embodiment, the prefabricated hollow steel concrete column further includes: a transverse support connected to the prefabricated hollow steel concrete column; the adapter assembly includes:

[0026] a first steel end plate welded to the transverse steel sections and column longitudinal reinforcement within the transverse support;

[0027] a second steel end plate, the second steel end plate being welded to the inner section steel of the beam;

[0028] a first embedded bolt, the first embedded bolt being used to pass through the first steel end plate and the second steel end plate to connect the prefabricated hollow steel concrete column to the prefabricated hollow steel concrete beam;

[0029] A steel bar connector is used to connect the column longitudinal steel bars and the beam longitudinal steel bars.

[0030] In a feasible embodiment, the hollow steel-concrete pier column and beam connection structure further includes:

[0031] A post-cast concrete layer is poured at a connection between the first steel end plate and the second steel end plate.

[0032] In a feasible implementation manner, the adapter assembly includes:

[0033] A steel plate is attached to the outside of the column, and the steel plate is connected to one side of the prefabricated hollow steel concrete column through a second embedded bolt;

[0034] a third steel end plate, the third steel end plate being welded to the inner section steel of the beam;

[0035] The outer steel plate on the column is connected to the third steel end plate through the second embedded bolts, so that the prefabricated hollow steel concrete column and the prefabricated hollow steel concrete beam are connected.

[0036] In a feasible implementation manner, the adapter assembly includes:

[0037] An annular steel plate sleeve, the annular steel plate sleeve comprises a plurality of spliced ​​steel plates, the plurality of spliced ​​steel plates are spliced ​​to form a sleeve shape, the annular steel plate sleeve is sleeved on the prefabricated hollow steel concrete column and is formed with an insertion hole;

[0038] The fastening bolts are inserted into the insertion holes of the annular steel plate sleeves, and the fastening bolts pass through the annular steel plate sleeves and are connected to the prefabricated hollow steel concrete beams.

[0039] According to a second aspect of an embodiment of the present application, a construction process is proposed for constructing a hollow steel-concrete pier column and beam connection structure as described in any of the above technical solutions. The construction process includes:

[0040] Prefabricated hollow steel-concrete columns are prepared, and some transfer components are arranged on the prefabricated hollow steel-concrete columns;

[0041] Prefabricated hollow steel-concrete beams are prepared, and some transfer components are arranged on the prefabricated hollow steel-concrete beams;

[0042] The prefabricated hollow steel concrete beam is hoisted and connected to the prefabricated hollow steel concrete column via a transition assembly.

[0043] In a feasible embodiment, the steps of preparing a prefabricated hollow steel-concrete column and arranging a portion of the adapter components on the prefabricated hollow steel-concrete column include:

[0044] Providing column inner steel, welding transverse steel to the column inner steel, setting first studs on the column inner steel and the transverse steel, welding a first steel end plate to the transverse steel, providing a first steel reinforcement skeleton, passing the column longitudinal reinforcement through the first steel end plate, and pouring a first concrete filling layer; or

[0045] Providing a steel section inside the column, setting a first stud on the steel section inside the column, setting a second embedded bolt, fixing the external steel plate on the column with the second embedded bolt, providing a first steel bar skeleton, and pouring a first concrete filling layer; or

[0046] Provide inner column steel, set first bolts on the inner column steel, set annular steel plate sleeves, provide a first steel bar skeleton, and pour a first concrete filling layer.

[0047] In a feasible embodiment, the steps of preparing a prefabricated hollow steel-concrete beam and arranging a portion of the adapter components on the prefabricated hollow steel-concrete beam include:

[0048] Providing inner beam steel, setting second bolts on the inner beam steel, setting a second steel reinforcement skeleton, setting a second steel end plate on the inner beam steel, and pouring a second concrete filling layer; or

[0049] Providing inner beam steel, setting second bolts on the inner beam steel, setting a third steel reinforcement skeleton, setting a third steel end plate on the inner beam steel, and pouring a second concrete filling layer; or

[0050] Provide inner steel sections of the beam, set second bolts on the inner steel sections of the beam, pour a second concrete filling layer, and reserve connection holes on the second concrete filling layer.

[0051] In a feasible embodiment, the step of hoisting the prefabricated hollow steel concrete beam and connecting it to the prefabricated hollow steel concrete column via a connecting assembly includes:

[0052] Hoisting the prefabricated hollow steel concrete beam so that the second steel end plate is arranged opposite to the first steel end plate, locking the first steel end plate and the second steel end plate by first embedded bolts, and connecting the column longitudinal steel bars and the beam longitudinal steel bars by steel bar connectors; or

[0053] Hoisting the prefabricated hollow steel concrete beam so that the third steel end plate is arranged opposite to the outer steel plate on the column, and locking the third steel end plate and the outer steel plate on the column by a second embedded bolt; or

[0054] The prefabricated hollow steel concrete beam is hoisted, the prefabricated hollow steel concrete beam is inserted into the annular steel plate sleeve, and the fastening bolts are passed through the annular steel plate sleeve and screwed into the reserved connection holes.

[0055] Compared with the prior art, this application has at least the following beneficial effects:

[0056] The hollow steel-concrete pier column and beam connection structure provided in the embodiment of the present application includes a prefabricated hollow steel-concrete column, a prefabricated hollow steel-concrete beam and a transition assembly. The prefabricated hollow steel-concrete column is connected to the prefabricated hollow steel-concrete beam through the transition assembly. The formed hollow steel-concrete pier column and beam connection structure has the advantages of high bearing capacity, high rigidity, seismic resistance, good ductility, high rigidity, light dead weight, and good steel saving. It is particularly suitable for use in high-rise (super-high-rise) buildings, heavy-load structures and large-span structures. At the same time, the prefabricated hollow steel-concrete column, prefabricated hollow steel-concrete beam and transition assembly of the hollow steel-concrete pier column and beam connection structure provided in the embodiment of the present application can all be prefabricated, and only the modules need to be assembled on the construction site, which solves practical problems such as poor construction quality, long construction period, and environmental pollution, and is more in line with the concept of green development. Furthermore, the prefabricated hollow steel-concrete columns and prefabricated hollow steel-concrete beams of the hollow steel-concrete pier and beam connection structure provided in the embodiment of the present application are connected by a transition assembly. The overall performance of the structure is excellent, and the shear resistance of the structure can be improved. Under the action of an earthquake, excessive displacement will not be generated to cause instability. The tight connection at the edge nodes of the beam and the column can well transmit the internal force between the two, and will not cause local stress concentration and the appearance of dangerous areas. Compared with the solid steel-concrete composite structure with the same amount of steel, it has better bearing capacity, ductility, seismic resistance and overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0058] FIG1 is a schematic structural diagram of a hollow steel-concrete pier column and beam connection structure according to an embodiment of the present application;

[0059] FIG2 is a schematic cross-sectional view taken along the AA direction in FIG1 ;

[0060] FIG3 is a schematic cross-sectional view taken along line BB in FIG1 ;

[0061] FIG4 is a schematic structural diagram of a hollow steel-concrete pier column and beam connection structure according to an embodiment of the present application, viewed from another angle;

[0062] FIG5 is a schematic cross-sectional view taken along the DD direction in FIG4 ;

[0063] FIG6 is a schematic structural diagram of a prefabricated hollow steel-concrete column of a hollow steel-concrete pier column and beam connection structure according to an embodiment of the present application;

[0064] FIG7 is a schematic cross-sectional view taken along the CC direction in FIG6 ;

[0065] FIG8 is a schematic structural diagram of a prefabricated hollow steel-concrete beam of a hollow steel-concrete pier-beam connection structure according to an embodiment of the present application;

[0066] FIG9 is a schematic cross-sectional view taken along the EE direction in FIG8 ;

[0067] FIG10 is a schematic structural diagram of a hollow steel-concrete pier column and beam connection structure according to another embodiment of the present application;

[0068] FIG11 is a schematic cross-sectional view taken along the AA direction in FIG10 ;

[0069] FIG12 is a schematic cross-sectional view taken along line BB in FIG10 ;

[0070] FIG13 is a schematic structural diagram of a hollow steel-concrete pier column and beam connection structure according to another embodiment of the present application, viewed from another angle;

[0071] FIG14 is a schematic cross-sectional view taken along the CC direction in FIG13 ;

[0072] FIG15 is a schematic structural diagram of a prefabricated hollow steel-concrete column of a hollow steel-concrete pier column and beam connection structure according to another embodiment of the present application;

[0073] FIG16 is a schematic cross-sectional view taken along the DD direction in FIG15 ;

[0074] FIG17 is a schematic structural diagram of a prefabricated hollow steel-concrete beam of a hollow steel-concrete pier-beam connection structure according to another embodiment of the present application;

[0075] FIG18 is a schematic cross-sectional view taken along the EE direction in FIG17 ;

[0076] FIG19 is a schematic structural diagram of a hollow steel-concrete pier column and beam connection structure according to another embodiment of the present application;

[0077] FIG20 is a schematic cross-sectional view taken along the AA direction in FIG19 ;

[0078] FIG21 is a schematic cross-sectional view taken along line BB in FIG19 ;

[0079] FIG22 is a schematic structural diagram of a hollow steel-concrete pier column and beam connection structure according to another embodiment of the present application, viewed from another angle;

[0080] FIG23 is a cross-sectional schematic diagram taken along the CC direction in FIG22 ;

[0081] FIG24 is a schematic structural diagram of a prefabricated hollow steel-concrete column of a hollow steel-concrete pier column and beam connection structure according to another embodiment of the present application;

[0082] FIG25 is a schematic cross-sectional view taken along the DD direction in FIG24 ;

[0083] FIG26 is a schematic structural diagram of a prefabricated hollow steel-concrete beam of a hollow steel-concrete pier-beam connection structure according to another embodiment of the present application;

[0084] FIG27 is a schematic cross-sectional view taken along the EE direction in FIG26 ;

[0085] FIG28 is a schematic flowchart of the steps of a construction method of a hollow steel-concrete pier column and beam connection structure according to an embodiment of the present application.

[0086] The corresponding relationship between the reference numerals and component names in Figures 1 to 27 is as follows:

[0087] 1 Precast hollow steel-concrete column, 2 Precast hollow steel-concrete beam, 301 Column internal steel, 302 Beam internal steel, 401 First stud, 402 Second stud, 5 First steel end plate, 6 Second steel end plate, 701 First embedded bolt, 702 Second embedded bolt, 703 Fastening bolt, 8 Rebar connector, 9 Column longitudinal reinforcement, 10 Beam longitudinal reinforcement, 111 First concrete filling layer, 112 Second concrete filling layer, 12 Post-cast concrete, 13 Precast column stirrups, 14 Precast beam stirrups, 15 Column external steel plate, 16 Circumferential steel plate sleeve, 17 Third steel end plate. DETAILED DESCRIPTION

[0088] In order to better understand the above technical solution, the technical solution of the embodiment of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiment of the present application and the specific features in the embodiment are detailed descriptions of the technical solution of the embodiment of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiment of the present application and the technical features in the embodiment can be combined with each other.

[0089] As shown in Figures 1 to 27, according to the first aspect of the embodiment of the present application, a hollow steel-concrete pier column and beam connection structure is proposed, including: a prefabricated hollow steel-concrete column 1; a prefabricated hollow steel-concrete beam 2; a transition assembly, the prefabricated hollow steel-concrete column 1 is connected to the prefabricated hollow steel-concrete beam 2 through the transition assembly; wherein the transition assembly includes a steel plate, and the prefabricated hollow steel-concrete column 1 is connected to the prefabricated hollow steel-concrete column 1 through the steel plate.

[0090] The hollow steel-concrete pier column and beam connection structure provided in the embodiment of the present application includes a prefabricated hollow steel-concrete column 1, a prefabricated hollow steel-concrete beam 2 and a transition assembly. The prefabricated hollow steel-concrete column 1 is connected to the prefabricated hollow steel-concrete beam 2 through the transition assembly. The formed hollow steel-concrete pier column and beam connection structure has the advantages of high bearing capacity, high rigidity, seismic resistance, good ductility, high rigidity, light dead weight, and good steel saving. It is particularly suitable for use in high-rise (super-high-rise) buildings, heavy-load structures and large-span structures. At the same time, the prefabricated hollow steel-concrete column 1, the prefabricated hollow steel-concrete beam 2 and the transition assembly of the hollow steel-concrete pier column and beam connection structure provided in the embodiment of the present application can all be prefabricated, and only the modules need to be assembled on the construction site, which solves practical problems such as poor construction quality, long construction period, and environmental pollution, and is more in line with the concept of green development. Furthermore, the prefabricated hollow steel-concrete column 1 and the prefabricated hollow steel-concrete beam 2 of the hollow steel-concrete pier and beam connection structure provided in the embodiment of the present application are connected by a transition assembly. The overall performance of the structure is excellent, and the shear resistance of the structure can be improved. Under the action of an earthquake, excessive displacement will not be generated to cause instability. The tight connection at the edge nodes of the beam and the column can well transmit the internal force between the two, and will not cause local stress concentration and the appearance of dangerous areas. Compared with the solid steel-concrete composite structure with the same amount of steel, it has better bearing capacity, ductility, seismic resistance and overall stability.

[0091] As shown in Figures 1 to 27, in a feasible embodiment, the prefabricated hollow steel-concrete column 1 includes: an inner column steel section 301; a first stud 401, the first stud 401 is welded to the inner column steel section 301; a first steel skeleton and a first concrete filling layer 111, the first concrete filling layer 111 wraps the inner column steel section 301, the first stud 401 and the first steel skeleton; wherein the first steel skeleton includes column longitudinal steel bars 9 and prefabricated column stirrups 13.

[0092] In this technical solution, the structural composition of a prefabricated hollow steel-concrete column 1 is further provided. The prefabricated hollow steel-concrete column 1 includes an inner steel section 301, a first bolt 401, a first steel skeleton and a first concrete filling layer 111. The hollow steel-concrete pier column and beam connection structure formed in this way has the advantages of high bearing capacity, high rigidity, seismic resistance, good ductility, high rigidity, light dead weight, and good steel saving, and is particularly suitable for application in high-rise (super-high-rise) buildings, heavy-load structures and large-span structures.

[0093] As shown in Figures 1 to 27, in a feasible embodiment, the prefabricated hollow steel concrete beam 2 includes: beam inner steel 302; second studs 402, the second studs 402 are welded to the beam inner steel 302; a second steel skeleton and a second concrete filling layer 112, the second concrete filling layer 112 wraps the column inner steel 301, the second studs 402 and the second steel skeleton; wherein the second steel skeleton includes beam longitudinal steel bars 10 and prefabricated beam stirrups 14.

[0094] In this technical solution, the structural composition of a prefabricated hollow steel-concrete beam 2 is further provided. The prefabricated hollow steel-concrete column 1 includes a beam inner steel section 302, a second bolt 402, a second steel skeleton and a second concrete filling layer 112. The hollow steel-concrete pier column and beam connection structure formed in this way has the advantages of high bearing capacity, high rigidity, seismic resistance, good ductility, high rigidity, light dead weight, and good steel saving, and is particularly suitable for application in high-rise (super-high-rise) buildings, heavy-load structures and large-span structures.

[0095] As shown in Figures 1 to 9, in a feasible embodiment, the prefabricated hollow steel-concrete column 1 also includes: a transverse support, which is connected to the prefabricated hollow steel-concrete column 1; a transition assembly includes: a first steel end plate 5, which is welded to the transverse steel section and the column longitudinal reinforcement 9 in the transverse support; a second steel end plate 6, which is welded to the steel section 302 in the beam; a first embedded bolt 701, which is used to pass through the first steel end plate 5 and the second steel end plate 6 to connect the prefabricated hollow steel-concrete column 1 to the prefabricated hollow steel-concrete beam 2; and a steel bar connector 8, which is used to connect the column longitudinal reinforcement 9 and the beam longitudinal reinforcement 10.

[0096] In this technical solution, a structural composition of a connection assembly is provided. The prefabricated hollow steel concrete column 1 also includes: a transverse support, which is connected to the prefabricated hollow steel concrete column 1, and the connection assembly may include a first steel end plate 5, a second steel end plate 6, a first embedded bolt 701 and a steel connector 8. During use, the first embedded bolt 701 passes through the first steel end plate 5 and the second steel end plate 6 to connect the prefabricated hollow steel concrete column 1 and the prefabricated hollow steel concrete beam 2. In order to further improve the reliability of the connection, the steel connector 8 can be used to connect the column longitudinal steel bars 9 and the beam longitudinal steel bars 10. Based on this, the overall performance of the hollow steel concrete pier and beam connection structure is superior, which can improve the shear resistance of the structure and will not produce excessive displacement and cause instability under earthquake action. The tight connection at the edge node of the beam and the column can well transmit the internal force between the two, and will not cause local stress concentration and the emergence of dangerous areas. Compared with the solid steel concrete composite structure with the same amount of steel, it has better bearing capacity, ductility, seismic performance and overall stability.

[0097] As shown in FIG1 to FIG9 , in some examples, when the connection assembly includes the first steel end plate 5 and the second steel end plate 6 , the construction method of the hollow steel concrete pier column and beam connection structure can be:

[0098] (1) Fabricate a prefabricated hollow steel-concrete column 1. Fabricate the column inner steel 301 according to the standard, weld a section of transverse steel to the flange plate of the column inner steel 301, reinforce it with a connecting plate, and then weld the first bolt 401 to the transverse steel and the column inner steel 301. Fabricate the column formwork and the steel bar skeleton (rebar cage), weld the first steel end plate 5 to the end of the welded transverse steel, and weld the column longitudinal steel bar 9 to the first steel end plate 5, or extend the longitudinal steel bar out of the first steel end plate 5 so that the longitudinal steel bar can be connected to the longitudinal steel bar 10 in the prefabricated steel-concrete beam using the steel bar connector 8; finally, pour the first concrete filling layer 111 in the formwork to complete the fabrication of the steel-concrete beam.

[0099] (2) Fabrication of prefabricated hollow steel-concrete beam 2. Fabricate beam inner steel 302, weld second bolts 402 to the beam inner steel 302, and weld second steel end plates 6 to the ends of the beam inner steel 302. Fabricate beam formwork and reinforcement skeleton. Beam longitudinal reinforcement 10 can be welded to the second steel end plates 6, or reinforced with reinforcement connectors 8. Then, pour a second concrete filling layer 112 into the formwork to complete the fabrication of prefabricated hollow steel-concrete beam 2. For the connection of reinforcement between columns of prefabricated hollow steel-concrete beam 2, in addition to welding the beam and column reinforcement, connectors can also be used for connection. The reinforcement connectors 8 can be reinforcement straight threaded sleeves and grouting sleeves.

[0100] (3) Component installation: hoist the prefabricated hollow steel-concrete beam with the second steel end plate 6 at the end to the side of the hollow steel-concrete column with the first steel end plate 5 at the end, connect the two through the end bolt holes, use the first embedded bolt 701 to pass through the reserved bolt hole and tighten it, and at the same time insert the protruding column longitudinal steel bar 9 in the prefabricated hollow steel-concrete column 1 into the steel bar connector 8 and tighten it; finally, build a formwork and tie the bars at the splicing point, and pour 12 layers of concrete.

[0101] As shown in Figures 1 to 9, in one feasible embodiment, the hollow steel-concrete pier column and beam connection structure further includes 12 layers of post-cast concrete, which are poured at the connection between the first steel end plate 5 and the second steel end plate 6. This arrangement can further improve the connection strength between the first steel end plate 5 and the second steel end plate 6, reduce the probability of corrosion of the first steel end plate 5 and the second steel end plate 6, and extend the service life.

[0102] As shown in Figures 10 to 18, in a feasible embodiment, the adapter assembly includes: an external steel plate 15 attached to the column, which is connected to one side of the prefabricated hollow steel-concrete column 1 through a second embedded bolt 702; a third steel end plate 17, which is welded to the steel section 302 inside the beam; the external steel plate 15 on the column is connected to the third steel end plate 17 through a second embedded bolt 702, so that the prefabricated hollow steel-concrete column 1 and the prefabricated hollow steel-concrete beam 2 are connected.

[0103] In this technical solution, another structural composition of a connection component is provided, and the connection component may include an external steel plate 15 on the column and a third steel end plate 17. During the assembly process, the external steel plate 15 on the column and the third steel end plate 17 are connected by the second embedded bolts 702, so that the prefabricated hollow steel-concrete column 1 and the prefabricated hollow steel-concrete beam 2 can be connected, so that the overall performance of the hollow steel-concrete pier column and beam connection structure is superior, and the shear resistance of the structure can be improved. Under the action of an earthquake, excessive displacement will not be generated to cause instability. The tight connection between the beam and the column edge node can well transmit the internal force between the two, and will not cause local stress concentration and the emergence of dangerous areas. Compared with the solid steel-concrete composite structure with the same amount of steel, it has better bearing capacity, ductility, seismic performance and overall stability.

[0104] As shown in FIG10 to FIG18 , in some examples, when the connection assembly includes the column external steel plate 15 and the third steel end plate 17 , the construction method of the hollow steel concrete pier column and beam connection structure can be:

[0105] (1) Production of prefabricated hollow steel concrete column 1: produce the column inner steel 301 according to the design requirements, weld the first bolt 401 inside the steel; produce the formwork and steel skeleton (steel cage), and embed the second embedded bolt 702 on one side of the column; place the outer steel plate 15 on the same side of the column, and pass the second embedded bolt 702 through the reserved hole of the outer steel plate 15 on the column; pour the first concrete filling layer 111 in the formwork to complete the production of the prefabricated hollow steel concrete column 1;

[0106] (2) Fabrication of prefabricated hollow steel-concrete beam 2: Fabricate the inner steel section 302 of the beam according to the design requirements, weld the second bolt 402 into the steel section, fabricate the formwork and the steel skeleton (reinforcement cage), weld the third steel end plate 17 to the end of the inner steel section 302 of the beam, pour the second concrete filling layer 112 into the formwork, and complete the fabrication of the prefabricated hollow steel-concrete beam 2. Use pre-buried steel plate-bolts to connect the prefabricated column and beam, making the operation simpler and clearer. Pre-buried bolts are placed at the connection between the prefabricated hollow steel-concrete column 1 and the steel-concrete beam, and then the connection is made by arranging steel plates on the surface of the column.

[0107] (3) On-site assembly: hoist the prefabricated hollow steel-concrete beam 2 with the third steel end plate 17 at the end to one side of the prefabricated hollow steel-concrete column 1 with the column external steel plate 15 at the end, and connect the two through the second embedded bolt 702 hole at the end; use the second embedded bolt 702 to pass through the reserved bolt hole and tighten it to complete the connection of the prefabricated components.

[0108] As shown in Figures 19 to 27, in a feasible embodiment, the adapter assembly includes: an annular steel plate sleeve 16, the annular steel plate sleeve 16 includes a plurality of spliced ​​steel plates, the plurality of spliced ​​steel plates are spliced ​​to form a sleeve shape, the annular steel plate sleeve 16 is sleeved on the prefabricated hollow steel concrete column 1, and is formed with a socket; a fastening bolt 703, the prefabricated hollow steel concrete beam 2 is inserted into the socket of the annular steel plate sleeve 16, and the fastening bolt 703 passes through the annular steel plate sleeve 16 and is connected to the prefabricated hollow steel concrete beam 2.

[0109] In this technical solution, another structural composition of a connection component is provided. The connection component may include an annular steel plate sleeve 16 and a fastening bolt 703. The prefabricated hollow steel concrete beam is inserted into the insertion hole of the annular steel plate sleeve 16 to realize the connection between the prefabricated hollow steel concrete column 1 and the prefabricated hollow steel concrete beam 2, so that the overall performance of the hollow steel concrete pier column and beam connection structure is superior, and the shear resistance of the structure can be improved. Under the action of an earthquake, it will not produce excessive displacement and cause instability. The tight connection between the beam and the column edge node can well transmit the internal force between the two, and will not cause local stress concentration and the emergence of dangerous areas. Compared with the solid steel concrete composite structure with the same amount of steel, it has better bearing capacity, ductility, seismic performance and overall stability.

[0110] As shown in FIG19 to FIG27 , in some examples, when the connection assembly includes the annular steel plate sleeve 16 and the fastening bolts 703 , the construction method of the hollow steel concrete pier column and beam connection structure can be:

[0111] (1) Production of prefabricated hollow steel concrete column 1: produce the column inner steel 301 according to the design requirements, weld the first bolt 401 into the column inner steel 301, and wrap the circumferential steel plate sleeve 16 at the connection according to the size of the prefabricated hollow steel concrete beam 2; produce the formwork and steel skeleton (steel cage), and pour the first concrete filling layer 111 in the formwork; set bolt holes in the prefabricated hollow steel concrete column 1 to complete the production of the prefabricated hollow steel concrete column 1.

[0112] (2) Production of prefabricated hollow steel concrete beam 2: According to the design requirements, the inner steel section 302 of the beam is produced, the second bolt 402 is welded inside the steel section, the formwork and the steel skeleton (steel cage) are produced, and the second concrete filling layer 112 is poured into the formwork to complete the production of the prefabricated hollow steel concrete beam 2.

[0113] (3) On-site assembly: hoist the prefabricated hollow steel concrete beam 2 into the annular steel plate sleeve 16 so that the bolt holes of the annular steel plate sleeve 16 are accurately aligned with the bolt holes of the prefabricated hollow steel concrete beam 2; pass the screw of the fastening bolt 703 through the bolt hole and tighten it with a nut to complete the connection between the prefabricated components.

[0114] As shown in FIG28 , according to the second aspect of the embodiment of the present application, a construction process is proposed for constructing a hollow steel-concrete pier column and beam connection structure as in any of the above technical solutions. The construction process includes:

[0115] Step 201: preparing a prefabricated hollow steel concrete column and installing some adapter components on the prefabricated hollow steel concrete column;

[0116] Step 202: preparing a prefabricated hollow steel concrete beam, and installing some adapter components on the prefabricated hollow steel concrete beam;

[0117] Step 203: hoist the prefabricated hollow steel concrete beam and connect it to the prefabricated hollow steel concrete column via a connecting assembly.

[0118] The construction process provided in the embodiment of the present application is used to construct a hollow steel-concrete pier column and beam connection structure such as any of the above-mentioned technical solutions. Therefore, this construction process has all the beneficial effects of the hollow steel-concrete pier column and beam connection structure of any of the above-mentioned technical solutions.

[0119] The hollow steel-concrete pier column and beam connection structure prepared by the construction method provided in the embodiment of the present application includes a prefabricated hollow steel-concrete column, a prefabricated hollow steel-concrete beam and a transition assembly. The prefabricated hollow steel-concrete column is connected to the prefabricated hollow steel-concrete beam through the transition assembly. The formed hollow steel-concrete pier column and beam connection structure has the advantages of high bearing capacity, high rigidity, seismic resistance, good ductility, high rigidity, light dead weight, and good steel saving. It is particularly suitable for use in high-rise (super-high-rise) buildings, heavy-load structures and large-span structures. At the same time, the prefabricated hollow steel-concrete column, prefabricated hollow steel-concrete beam and transition assembly of the hollow steel-concrete pier column and beam connection structure provided in the embodiment of the present application can all be prefabricated. Only the modules need to be assembled on the construction site, which solves the practical problems such as poor construction quality, long construction period, and environmental pollution, and is more in line with the concept of green development. Furthermore, the prefabricated hollow steel-concrete columns and prefabricated hollow steel-concrete beams of the hollow steel-concrete pier and beam connection structure provided in the embodiment of the present application are connected by a transition assembly. The overall performance of the structure is excellent, and the shear resistance of the structure can be improved. Under the action of an earthquake, excessive displacement will not be generated to cause instability. The tight connection at the edge nodes of the beam and the column can well transmit the internal force between the two, and will not cause local stress concentration and the appearance of dangerous areas. Compared with the solid steel-concrete composite structure with the same amount of steel, it has better bearing capacity, ductility, seismic resistance and overall stability.

[0120] In a feasible embodiment, the steps of preparing a prefabricated hollow steel-concrete column and arranging a portion of the adapter assembly on the prefabricated hollow steel-concrete column include:

[0121] Providing column inner steel, welding transverse steel to the column inner steel, setting first studs on the column inner steel and the transverse steel, welding a first steel end plate to the transverse steel, providing a first steel reinforcement skeleton, passing the column longitudinal reinforcement through the first steel end plate, and pouring a first concrete filling layer; or

[0122] Providing inner column steel, setting first studs on the inner column steel, setting second embedded bolts, fixing the outer steel plate on the column with the second embedded bolts, providing a first steel bar skeleton, and pouring a first concrete filling layer; or

[0123] Provide inner column steel, set first bolts on the inner column steel, set annular steel plate sleeves, provide a first steel bar skeleton, and pour a first concrete filling layer.

[0124] In this technical solution, a preparation process for prefabricated hollow steel-concrete columns is further provided, and at the same time, preparation and pre-embedding methods of three different specifications of connection components are provided, so that the prepared and constructed hollow steel-concrete pier column and beam connection structure has the advantages of high bearing capacity, high rigidity, seismic resistance, good ductility, high rigidity, light dead weight, and good steel saving, and is particularly suitable for application in high-rise (super-high-rise) buildings, heavy-load structures and large-span structures.

[0125] In a feasible embodiment, the steps of preparing a prefabricated hollow steel-concrete beam and arranging a portion of the adapter assembly on the prefabricated hollow steel-concrete beam include:

[0126] Providing inner steel sections of the beam, installing second bolts on the inner steel sections of the beam, installing a second steel reinforcement skeleton, installing a second steel end plate on the inner steel sections of the beam, and pouring a second concrete filling layer; or

[0127] Providing inner steel sections of the beam, installing second studs on the inner steel sections of the beam, installing a third steel reinforcement skeleton, installing a third steel end plate on the inner steel sections of the beam, and pouring a second concrete filling layer; or

[0128] Provide inner steel sections of the beam, set second bolts on the inner steel sections of the beam, pour a second concrete filling layer, and reserve connection holes on the second concrete filling layer.

[0129] In this technical solution, a preparation process for prefabricated hollow steel-concrete beams is further provided, and at the same time, preparation and pre-embedding methods of three different specifications of connection components are provided, so that the prepared and constructed hollow steel-concrete pier and beam connection structure has the advantages of high bearing capacity, high rigidity, seismic resistance, good ductility, high rigidity, light dead weight, and good steel saving, and is particularly suitable for application in high-rise (super-high-rise) buildings, heavy-load structures and large-span structures.

[0130] In a feasible embodiment, the steps of hoisting the prefabricated hollow steel concrete beam and connecting it to the prefabricated hollow steel concrete column via a transition assembly include:

[0131] Hoist the prefabricated hollow steel concrete beam so that the second steel end plate is arranged opposite to the first steel end plate, lock the first and second steel end plates with first embedded bolts, and connect the column longitudinal steel bars and the beam longitudinal steel bars with steel bar connectors; or

[0132] The prefabricated hollow steel concrete beam is hoisted so that the third steel end plate is opposite to the outer steel plate on the column, and the third steel end plate and the outer steel plate on the column are locked by the second embedded bolts;

[0133] The prefabricated hollow steel concrete beam is hoisted, inserted into the annular steel plate sleeve, and the fastening bolts are passed through the annular steel plate sleeve and screwed into the reserved connection holes.

[0134] In this technical solution, an assembly method of the hollow steel-concrete pier column and beam connection structure is further provided, so that the prepared and constructed hollow steel-concrete pier column and beam connection structure has the advantages of high bearing capacity, high rigidity, seismic resistance, good ductility, high rigidity, light dead weight, and good steel saving, and is particularly suitable for application in high-rise (super-high-rise) buildings, heavy-load structures and large-span structures.

[0135] In this application, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art can understand the specific meanings of the above terms in this application based on the specific circumstances.

[0136] In the description of this application, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0137] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0138] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A hollow steel-concrete pier column and beam connection structure, in, include: Prefabricated open-core steel-concrete columns; Precast open-web steel-concrete beam; A transfer assembly, through which the prefabricated hollow steel concrete column is connected to the prefabricated hollow steel concrete beam; Wherein, the transition assembly includes a steel plate, and the prefabricated hollow steel concrete column is connected to the prefabricated hollow steel concrete column via the steel plate.

2. The hollow steel concrete pier column and beam connection structure according to claim 1, in, The prefabricated hollow steel concrete column comprises: Steel inside the column; a first stud welded to the inner steel section of the column; a first steel skeleton and a first concrete filling layer, wherein the first concrete filling layer wraps the inner steel section of the column, the first stud and the first steel skeleton; Wherein, the first steel reinforcement skeleton comprises column longitudinal reinforcement and prefabricated column stirrups; The prefabricated hollow steel concrete beam comprises: Beam inner steel; a second stud welded to the inner steel section of the beam; a second steel skeleton and a second concrete filling layer, wherein the second concrete filling layer wraps the inner steel section of the column, the second studs and the second steel skeleton; Wherein, the second steel bar skeleton includes beam longitudinal steel bars and prefabricated beam stirrups.

3. The hollow steel concrete pier column and beam connection structure according to claim 2, in, The prefabricated hollow steel concrete column further comprises: a transverse support connected to the prefabricated hollow steel concrete column; the adapter assembly comprises: a first steel end plate, the first steel end plate being welded to the transverse steel sections and the column longitudinal reinforcement within the transverse support; A second steel end plate, the second steel end plate being welded to the inner steel section of the beam; a first embedded bolt, the first embedded bolt being used to pass through the first steel end plate and the second steel end plate so as to connect the prefabricated hollow steel concrete column to the prefabricated hollow steel concrete beam; A steel bar connector is used to connect the column longitudinal steel bars and the beam longitudinal steel bars.

4. The hollow steel concrete pier column and beam connection structure according to claim 3, in, Also includes: A post-cast concrete layer is cast at a connection between the first steel end plate and the second steel end plate.

5. The hollow steel concrete pier column and beam connection structure according to claim 2, in, The switching assembly comprises: The steel plate on the column is connected to the prefabricated One side of the Vierendeel steel-concrete column; A third steel end plate, the third steel end plate being welded to the inner steel section of the beam; The outer steel plate on the column is connected to the third steel end plate through the second embedded bolts, so that the prefabricated hollow steel concrete column and the prefabricated hollow steel concrete beam are connected.

6. The hollow steel concrete pier column and beam connection structure according to claim 2, in, The switching assembly comprises: Circumferential steel plate sleeve, the circumferential steel plate sleeve includes a plurality of spliced steel plates, and the plurality of spliced steel plates are spliced into a sleeve shape. The circumferential steel plate sleeve is sleeved on the precast hollow steel reinforced concrete column and is formed with insertion holes; Fastening bolts, the precast hollow steel reinforced concrete beam is inserted into the insertion holes of the circumferential steel plate sleeve, and the fastening bolts pass through the circumferential steel plate sleeve and are connected to the precast hollow steel reinforced concrete beam.

7. A construction process, wherein, For constructing the connection structure between the hollow steel reinforced concrete pier column and the beam as described in any one of claims 1 to 6, the construction process includes: Prepare a precast hollow steel reinforced concrete column and set part of the transfer components on the precast hollow steel reinforced concrete column; Prepare a precast hollow steel reinforced concrete beam and set part of the transfer components on the precast hollow steel reinforced concrete beam; Lift the precast hollow steel reinforced concrete beam and connect it to the precast hollow steel reinforced concrete column through the transfer components.

8. The construction process according to claim 7, wherein, The step of preparing the precast hollow steel reinforced concrete column and setting part of the transfer components on the precast hollow steel reinforced concrete column includes: Provide the steel section inside the column, weld the transverse steel section on the steel section inside the column, set the first stud on the steel section inside the column and the transverse steel section, weld the first steel end plate on the transverse steel section, provide the first steel bar cage, make the longitudinal steel bars of the column pass through the first steel end plate, and pour the first concrete filling layer; or Provide the steel section inside the column, set the first stud on the steel section inside the column, set the second embedded bolt, fix the steel plate pasted outside the column through the second embedded bolt, provide the first steel bar cage, and pour the first concrete filling layer; or Provide the steel section inside the column, set the first stud on the steel section inside the column, set the circumferential steel plate sleeve, provide the first steel bar cage, and pour the first concrete filling layer.

9. The construction process according to claim 8, wherein, The step of preparing the precast hollow steel reinforced concrete beam and setting part of the transfer components on the precast hollow steel reinforced concrete beam includes: Provide the steel section inside the beam, set the second stud on the steel section inside the beam, set the second steel bar cage, set the second steel end plate on the steel section inside the beam, and pour the second concrete filling layer; or Provide the steel section inside the beam, set the second stud on the steel section inside the beam, set the third steel bar cage, set the third steel end plate on the steel section inside the beam, and pour the second concrete filling layer; or Provide the steel section inside the beam, set the second stud on the steel section inside the beam, pour the second concrete filling layer, and reserve connection holes on the second concrete filling layer.

10. The construction process according to claim 9, wherein, The step of lifting the precast hollow steel reinforced concrete beam and connecting it to the precast hollow steel reinforced concrete column through the transfer components includes: Lift the precast hollow steel reinforced concrete beam so that the second steel end plate and the first steel end plate are arranged opposite to each other, lock the first steel end plate and the second steel end plate through the first embedded bolt, and connect the longitudinal steel bars of the column and the longitudinal steel bars of the beam through the steel bar connector; or Lift the precast open-web steel reinforced concrete beam so that the third steel end plate is arranged opposite to the externally-bonded steel plate on the column, and lock the third steel end plate and the externally-bonded steel plate on the column through the second embedded bolt; or Lift the precast open-web steel reinforced concrete beam, insert the precast open-web steel reinforced concrete beam into the circumferential steel plate sleeve, and pass the fastening bolt through the circumferential steel plate sleeve and screw it into the reserved connection hole.

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