A modular assembled SRC beam-SRC corbel column frame structure and assembly method thereof

Abstract

The present invention provides a modular assembled SRC beam-SRC corbel column frame structure and an assembly method thereof, comprising an SRC corbel column, an SRC beam and a column-column node core; the SRC corbel column comprises a corbel column steel frame and column concrete, bolt holes are provided at the upper and lower ends of the column cross steel and the column concrete, and a beam-beam connection core is provided at the outer end of the corbel beam H-section steel; the SRC beam comprises an H-section steel, beam concrete and a beam shoe, beam shoes are provided at both ends of the H-section steel, and the end portion of the SRC beam is connected to the beam-beam connection core of the SRC corbel column through the beam shoe; the column-column node core comprises a node core plate and two groups of L-shaped end plates, and threaded holes are provided at corresponding positions of the L-shaped end plates; two vertically adjacent SRC corbel columns are connected and fixed by the column-column node core and a unilateral self-locking high-strength bolt, and two horizontally adjacent SRC corbel columns are connected and fixed together by the SRC beam and a unilateral self-locking high-strength bolt to form a frame structure.

Description

Technical Field

[0001] The present invention relates to the technical field of modular assembled buildings, and in particular to a modular assembled SRC beam-SRC corbel column frame structure and an assembly method thereof. Background Art

[0002] Against the backdrop of vigorous development of building industrialization, informatization, intelligence, greening, and resilient urban and rural construction in my country, the promotion of prefabricated buildings is imperative. It can also meet the needs of energy conservation and emission reduction in the construction industry and has positive significance for the sustainable development of the construction industry.

[0003] Steel-reinforced concrete (SRC) structures, a key form of steel-concrete composite structures, combine steel sections with traditional reinforced concrete components, resulting in high load-bearing capacity, high lateral stiffness, and excellent ductility and energy dissipation. To combine the high strength and ductility of SRC structures with the ease of construction of precast concrete, domestic and international engineers have conducted numerous experiments, ultimately developing prefabricated SRC structures.

[0004] However, most of the existing prefabricated SRC structural systems at home and abroad are assembled by prefabricating some SRC components and pouring some on-site, while there are relatively few studies on fully prefabricated SRC structural systems.

[0005] At the same time, the construction method of partial prefabrication and partial cast-in-place will inevitably lead to a large amount of wet work on the construction site, which makes it impossible to fully utilize the advantages of prefabricated buildings.

[0006] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the Invention

[0007] The purpose of the present invention is to address the deficiencies of the existing technology and thus provide a modular assembled SRC beam-SRC corbel column frame structure and its assembly method that reduces on-site wet work workload, reduces material loss, reduces assembly difficulty, improves construction efficiency, and has high stability.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is: a modular assembled SRC beam-SRC corbel column frame structure, including a plurality of SRC corbel columns, a plurality of SRC beams, a plurality of column-column node cores, a plurality of unilateral self-locking high-strength bolts and a plurality of ordinary high-strength bolts;

[0009] The SRC corbel column comprises a corbel column steel frame and column concrete; the corbel column steel frame comprises a column cross steel and a corbel beam H-shaped steel, the corbel beam H-shaped steel is welded and fixed to at least one side of the middle portion of the column cross steel, the column concrete is wrapped around the surface of the corbel column steel frame, the column cross steel and the upper and lower ends of the column concrete are provided with bolt holes with matching positions, a grouting hole and a slurry outlet hole are reserved at the bottom end of the column concrete, a beam-beam connection core is provided at the outer end of the corbel beam H-shaped steel, and a bolt hole is provided at one end of the beam-beam connection core near the corbel beam H-shaped steel and a threaded hole is provided at the other end;

[0010] The SRC beam includes an H-shaped steel beam, beam concrete, and a beam shoe. The beam concrete is wrapped around the surface of the H-shaped steel beam. The beam shoe includes a front end and a rear end. The front end of the beam shoe is provided with a hanging opening and a threaded hole matching the beam-beam connection core. The rear end of the beam shoe is provided with a bolt hole. The two ends of the H-shaped steel beam are connected to the rear end of the beam shoe by ordinary high-strength bolts. The front end of the beam shoe of the SRC beam is hung and positioned with the front end of the beam-beam connection core of the SRC corbel column and fixed by a unilateral self-locking high-strength bolt.

[0011] The column-column node core comprises a node core plate and two sets of L-shaped end plates installed on both end surfaces of the node core plate, one end of the L-shaped end plate is connected to the node core plate by welding and encloses to form a columnar joint, and threaded holes are provided on the connection surfaces of the L-shaped end plates;

[0012] The two vertically adjacent SRC corbel columns are fixed together through the column-column node core and single-sided self-locking high-strength bolts, and the two horizontally adjacent SRC corbel columns are fixed together through the SRC beam and single-sided self-locking high-strength bolts to form a frame structure as a whole.

[0013] Based on the above, the column cross-shaped steel includes a core web with a cross-shaped cross section and four flange plates formed at the outer ends of the cross-shaped core web. Adjacent flange plates are perpendicular to each other and do not contact each other. Bolt holes are respectively provided at both ends of each flange plate of the column cross-shaped steel.

[0014] Based on the above, the inner end of the corbel H-shaped steel is welded to the flange plate in the middle of the column cross-shaped steel. The number of the corbel H-shaped steel in a single SRC corbel column is one, two, three or four.

[0015] Based on the above, a number of H-shaped steel bolt holes are set on the web of the outer end of the H-shaped steel of the corbel beam, and the beam-beam connection core includes a beam-beam connection core end head, a beam-beam connection core web plate, a beam-beam connection core flange and a beam-beam connection core end plate. The beam-beam connection core end head is rectangular and the two side plates are provided with beam-beam connection core end head threaded holes. The rear end of the beam-beam connection core end head is welded to the front end face of the beam-beam connection core end plate, and the middle part of the rear end face of the beam-beam connection core end plate is welded with two beam-beam connection core web plates. A gap is formed between the core webs for clamping the web of the corbel beam H-shaped steel, and a through bolt hole is set on the beam-beam connection core web; the upper and lower rear end faces of the beam-beam connection core end plates are respectively welded with the beam-beam connection core flanges, and a gap is set in the center position of the beam-beam connection core flanges for clamping the web of the corbel beam H-shaped steel, wherein the width of each upper and lower beam-beam connection core flange is equal to the width of the flange plates on both sides of the corbel beam H-shaped steel web, and the beam-beam connection core flanges are connected to the flanges of the corbel beam H-shaped steel by welding.

[0016] The cam is provided with a plurality of bolt holes at both ends of the H-shaped steel of the SRC beam, and the beam shoe comprises a beam shoe end, a beam shoe web, a beam shoe flange and a beam shoe end plate, wherein the beam shoe end is called the front end of the beam shoe, and the beam shoe web and the beam shoe flange are called the rear end of the beam shoe. The beam shoe end is a gate-shaped structure matching the beam-beam connection core end, and a plurality of threaded holes are provided on both sides of the beam shoe end. The rear end of the beam shoe end is welded to the front end face of the beam shoe end plate, and two beam shoe webs are welded in the middle position of the rear end face of the beam shoe end plate, and a gap for clamping the web of the H-shaped steel of the beam is provided between the two beam shoe webs, and a through bolt hole is provided on the beam shoe web; the upper and lower parts of the rear end face of the beam shoe end plate are respectively provided with the beam shoe flanges, and the middle part of the beam shoe flange is provided with a gap for clamping the web of the H-shaped steel of the beam, and the width of the upper and lower beam shoe flanges is equal to the width of the flange plates on both sides of the web of the H-shaped steel of the beam.

[0017] Based on the above, the node core plate of the column-column node core is rectangular as a whole, and the number of a group of L-shaped end plates is four. The four L-shaped end plates are combined to form a rectangular opening, and a joint is left between two adjacent L-shaped end plates for socket connection with the web of the column cross steel in the corbel column steel frame. The threaded holes on the surface of the L-shaped end plate are used to match the bolt holes on the flange plate of the column cross steel.

[0018] A method for assembling a modular assembled SRC beam-SRC corbel column frame structure is provided, wherein the method comprises assembling the modular assembled SRC beam-SRC corbel column frame structure by the following steps:

[0019] Step 1) The factory manufactures the beam-beam connection core end, beam-beam connection core web, beam-beam connection core flange, and beam-beam connection core end plate. The beam-beam connection core end, beam-beam connection core end plate, beam-beam connection core web, and beam-beam connection core flange are welded together. Threaded holes for the beam-beam connection core end are opened at the corresponding positions of the beam-beam connection core end, and bolt holes for the beam-beam connection core web are opened at the corresponding positions of the beam-beam connection core web. This completes the beam-beam connection core component.

[0020] Step 2) The factory fabricates the SRC corbel steel frame, sequentially tying the steel bars, creating formwork, pouring the column concrete and the corbel concrete, and reserving holes for column concrete bolts, grouting, and grouting. After the concrete is cured, the web bolt holes of the beam-beam connection core are aligned with the bolt holes of the corbel H-steel. Conventional high-strength bolts are used to connect the beam-beam connection core to the corbel H-steel in the SRC corbel steel frame. The flanges of the beam-beam connection core are then welded to the flanges of the corbel H-steel. This completes the fabrication of the SRC corbel. Similarly, the corbels in different positions within the framework are completed.

[0021] Step 3) The factory manufactures the beam shoe end, beam shoe web, beam shoe flange, and beam shoe end plate. The beam shoe end, beam shoe end plate, beam shoe web, and beam shoe flange are welded together, and the beam shoe end bolt holes and beam shoe web bolt holes are set at the corresponding positions of the beam shoe end and beam shoe web, thus completing the component beam shoe.

[0022] Step 4) The factory fabricates H-beam steel and creates bolt holes for the H-beam steel at the corresponding locations. Rebar is then tied, formwork is fabricated, and concrete is poured. After the concrete is cured, the H-beam bolt holes are aligned with the bolt holes on the web of the beam shoe. The shoe and H-beam are then connected as a whole using conventional high-strength bolts. This completes the SRC beam.

[0023] Step 5) The factory fabricates the node core plate and L-shaped end plates, creates threaded holes in the L-shaped end plates at their corresponding locations, and then welds four L-shaped end plates of the same size to both sides of the node core plate. This completes the column-to-column node core.

[0024] Step 6) Pre-embed column-column joint cores in the foundation at the construction site;

[0025] Step 7) At the construction site, hoist, align, and position the SRC corbel column and the pre-buried column-column joint core in the foundation. Connect the SRC corbel column and the column-column joint core into a whole using unilateral self-locking high-strength bolts. Similarly, assemble the other SRC corbel columns spanning one floor in sequence.

[0026] Step 8) Lift the SRC beam from top to bottom at the construction site, aligning the bolt holes at the ends of the SRC beam boots with the threaded holes at the ends of the beam-beam connection cores of the SRC corbel columns. Connect the SRC beam and the SRC corbel columns together using single-sided self-locking high-strength bolts. Similarly, assemble the SRC beams of the other spans one layer at a time.

[0027] Step 9) At the construction site, align the column-column joint core with the top of the first-floor SRC corbel column from top to bottom and put it in place. Then, connect the second-floor column-column joint core and the first-floor SRC corbel column into a whole using single-sided self-locking high-strength bolts. Similarly, assemble the column-column joint cores on other axes of the second floor in sequence.

[0028] Step 10) Repeat steps 8 and 9 at the construction site to complete the assembly process of one or more prefabricated SRC beam-SRC corbel column frame structures.

[0029] Compared with the existing technology, the present invention has outstanding substantial features and significant progress. Specifically, the present invention decomposes the beam-column structure into a modular structure mainly including SRC corbel columns, SRC beams, and column-column node cores. Each component is standardized and industrially produced in the factory, and then transported to the site for assembly and connection, ultimately forming an assembled SRC beam-SRC corbel column frame structure, which greatly improves construction efficiency.

[0030] In addition, in this structural system, SRC beams and SRC corbel columns combine the high strength of steel and concrete materials with the high ductility and high lateral stiffness of SRC components. Through the decomposition method of this solution, the weak links in the frame structure that are subjected to stress are designed within the structure of the SRC beams or SRC corbel columns. These weak links are prefabricated in the factory, and the locations for on-site connection and assembly are selected in areas with relatively weak stress, thereby ensuring the bearing capacity, lateral stiffness and durability of the entire frame structure.

[0031] In terms of assembly efficiency design, this solution adopts top-down socket assembly, beam shoe hanging overlap assembly and other assembly methods, which can fully utilize the convenience of on-site cranes. The assembly rules of all parts are consistent and simplified. Compared with the traditional solution of splicing, alignment and bolting, it reduces the workload of on-site staff and improves assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is an axonometric diagram of the assembled SRC beam-SRC corbel column frame structure of the present invention;

[0033] Figure 2 It is a front view schematic diagram of the assembled SRC beam-SRC corbel column frame structure of the present invention;

[0034] Figure 3Schematic diagram of the left (right) view of the assembled SRC beam-SRC corbel column frame structure of the present invention;

[0035] Figure 4 Schematic top view of the assembled SRC beam-SRC corbel column frame structure of the present invention;

[0036] Figure 5 Schematic diagram of the axonometric view of the SRC corbel column of the present invention;

[0037] Figure 6 Schematic front view of the SRC corbel column of the present invention;

[0038] Figure 7 Schematic diagram of the left (right) view of the SRC corbel column of the present invention;

[0039] Figure 8 Schematic top view of the SRC corbel column of the present invention;

[0040] Figure 9 is an axonometric diagram of the SRC beam of the present invention;

[0041] Figure 10 Schematic diagram of the axonometric view of the SRC corbel column steel frame of the present invention;

[0042] Figure 11 This is an axonometric diagram of the H-shaped steel of the SRC beam of the present invention;

[0043] Figure 12 This is an axonometric diagram of the column-column node core of the present invention;

[0044] Figure 13 Schematic top view of the column-column node core of the present invention;

[0045] Figure 14 is an axonometric diagram of the beam-beam connection core of the present invention;

[0046] Figure 15 is a right side schematic diagram of the beam-beam connection core of the present invention;

[0047] Figure 16 is an axonometric diagram of the beam shoe according to the present invention;

[0048] Figure 17 It is a left side schematic diagram of the beam shoe described in the present invention.

[0049] In the figure: 1 SRC corbel column, 2 SRC beam, 3 column-column joint core, 4 single-side self-locking high-strength bolts, 5 ordinary high-strength bolts;

[0050] 101 SRC corbel column steel frame, 102 column concrete, 103 beam-beam connection core;

[0051] 10101 column cross steel, 10102 cross steel bolt hole, 10103 corbel beam H-shaped steel, 10104 corbel beam H-shaped steel bolt hole, 10201 column concrete bolt reserved hole, 10202 grouting hole, 10203 grouting hole, 10204 corbel beam concrete, 10301 beam-beam connection core end, 10302 beam-beam connection core web, 10303 beam-beam connection core flange, 10304 beam-beam connection core end plate, 10305 beam-beam connection core end threaded hole, 10306 beam-beam connection core web bolt hole;

[0052] Beam 201 is H-steel, beam 202 is concrete, beam 203 is shoe;

[0053] 20101 beam H-beam bolt hole, 20301 beam shoe end, 20302 beam shoe web, 20303 beam shoe flange, 20304 beam shoe end plate, 20305 beam shoe end bolt hole, 20306 beam shoe web bolt hole;

[0054] 301 node core plate, 302 L-shaped end plate, 30201 L-shaped end plate threaded holes. DETAILED DESCRIPTION

[0055] The technical solution of the present invention is further described in detail below through specific implementation methods.

[0056] like Figures 1-17 As shown, a modular assembled SRC beam-SRC corbel column frame structure includes several SRC corbel columns 1, several SRC beams 2, several column-column node cores 3, several unilateral self-locking high-strength bolts 4 and several ordinary high-strength bolts 5.

[0057] The SRC corbel column 1 includes a corbel column steel frame 101 and a column concrete 102; the corbel column steel frame 101 includes a column cross steel 10101 and a corbel beam H-shaped steel 10103, and the corbel beam H-shaped steel 10103 is welded and fixed to at least one side of the middle part of the column cross steel 10101. In this embodiment, Figure 1 As shown, the corbel beam H-shaped steel 10103 is welded and fixed on both sides of the middle part of the column cross-shaped steel 10101, and the whole is cross-shaped. The SRC corbel column 1 can be used as a column in the wall.

[0058] Specifically, the inner end of the corbel beam H-shaped steel 10103 is welded to the flange plate in the middle of the column cross-shaped steel. The number of the corbel beam H-shaped steel 10103 in a single SRC corbel column 1 is one, two, three or four. In other embodiments, different numbers can be set according to different positions, such as at the corner, the number is two and perpendicular to each other, the number inside the wall is two and in the same plane, the number is set to four at the center of the cross, and the number is set to one at the outer end of the single-sided wall.

[0059] With this design, most of the weak points (cross connection points) of the frame structure are located inside the SRC corbel column structure, which can better cope with frame deformation, and the bearing capacity, lateral stiffness and durability of the entire frame structure are guaranteed.

[0060] The column concrete 102 is wrapped around the surface of the corbel column steel frame 101, and bolt holes are provided at the upper and lower ends of the column cross steel 10101. The upper and lower ends of the column concrete 102 are correspondingly provided with bolt holes, which are respectively referred to as the cross steel bolt hole 10102 and the column concrete bolt reserved hole 10201 in this embodiment. The outer end of the corbel beam H-shaped steel 10103 is provided with a beam-beam connection core 103;

[0061] Specifically, in this embodiment, the column cross-shaped steel 10101 includes a core web with a cross-shaped cross-section and four flange plates formed at the outer ends of the cross-shaped core web. The adjacent flange plates are perpendicular to each other and do not contact each other. The cross-shaped steel bolt holes 10102 at both ends of the column cross-shaped steel are opened on the flange plates.

[0062] The lower part of the column concrete 102 is provided with a grouting hole 10202 and a grouting hole 10203 that connects the inside and the outside.

[0063] The outer end of the corbel H-shaped steel 10103 is exposed on the web of the corbel concrete 10204, and a plurality of corbel H-shaped steel bolt holes 10104 are set. The beam-beam connection core 103 includes a beam-beam connection core end head 10301, a beam-beam connection core web 10302, a beam-beam connection core flange 10303 and a beam-beam connection core end plate 10304. The beam-beam connection core end head 10301 is rectangular and has beam-beam connection core end head threaded holes 10305 on both sides. The rear end of the beam-beam connection core end head 10301 is fixed to the front end face of the beam-beam connection core end plate 10304, and the middle part of the rear end face of the beam-beam connection core end plate 10304 is fixed. Two pieces of the beam-beam connection core webs 10302 are fixed, and a gap for clamping the web of the corbel beam H-shaped steel is formed between the beam-beam connection core webs 10302, and a through beam-beam connection core web bolt hole 10306 is set on the beam-beam connection core web 10302; the upper and lower parts of the rear end surface of the beam-beam connection core end plate 10304 are respectively fixed with the beam-beam connection core flange 10303, and a gap for clamping the web of the corbel beam H-shaped steel is opened at the center position of the beam-beam connection core flange 10303, and the outer boundary distance between the upper and lower beam-beam connection core flanges 10303 is equal to the inner spacing of the flange plate of the corbel beam H-shaped steel 10103.

[0064] The SRC beam 2 includes an H-shaped steel beam 201, a concrete beam 202, and a beam shoe 203. The concrete beam 202 is wrapped around the surface of the H-shaped steel beam 201. Bolt holes are provided on the webs at both ends of the H-shaped steel beam 201, and the rear ends of the beam shoes 203 are connected by high-strength bolts. The front end of the beam shoe 203 is provided with a hanging opening and a bolt hole matching the beam-beam connection core. The end of the SRC beam 2 is hung and positioned on the beam-beam connection core 103 of the SRC corbel column 1 through the beam shoe 203 and is fixed by a unilateral self-locking high-strength bolt 4.

[0065] Specifically, in this embodiment, the webs at both ends of the H-shaped steel 201 of the SRC beam 2 are provided with a plurality of H-shaped steel bolt holes 20101, the beam shoe 203 includes a beam shoe end 20301, a beam shoe web 20302, a beam shoe flange 20303 and a beam shoe end plate 20304, the beam shoe end 20301 is a gate-shaped structure matching the beam-beam connection core end 10301, a plurality of beam shoe end bolt holes 20305 are provided on both sides of the beam shoe end 20301, the rear end of the beam shoe end 20301 is fixed to the front end surface of the beam shoe end plate 20304, and the beam Two beam shoe webs 20302 are installed at the center of the rear end face of the shoe end plate 20304, and a gap for clamping the web of the beam H-shaped steel 201 is set between the two beam shoe webs 20302. A number of through beam shoe web bolt holes 20306 are opened on the surface of the two beam shoe webs 20302; the upper and lower parts of the rear end face of the beam shoe end plate 20304 are respectively provided with the beam shoe flanges 20303, and the middle part of the beam shoe flange 20303 is opened with a gap for clamping the web of the beam H-shaped steel, and the outer boundary distance between the upper and lower beam shoe flanges 20303 is equal to the inner spacing of the beam H-shaped steel flange plate.

[0066] The column-column node core 3 includes a node core plate 301 and two groups of L-shaped end plates 302 installed on the two end surfaces of the node core plate. Each group of L-shaped end plates are spliced ​​together to form a columnar joint, and L-shaped end plate threaded holes 30201 are set on the side of the L-shaped end plate; specifically, in this embodiment, the node core plate 301 of the column-column node core 3 is rectangular as a whole, and the number of a group of L-shaped end plates 302 is four. The four L-shaped end plates 302 are combined to form a rectangular opening, and a joint is left between the adjacent two L-shaped end plates 302 for socket connection with the web of the column cross steel in the corbel column steel frame. The threaded holes on the surface of the L-shaped end plate are used to match the bolt holes on the flange plate of the column cross steel.

[0067] The cross-section steel ends of two vertically adjacent SRC corbel columns 1 are connected and fixed through the column-column node core 3 and the unilateral self-locking high-strength bolt 4, and the H-section steel of the corbel beams of two horizontally adjacent SRC corbel columns 1 are connected and fixed together through the SRC beam 2 to form a frame structure.

[0068] The above-mentioned beam-beam connection structure and column-column connection structure both adhere to the concept of top-down assembly. On-site cranes and other equipment can be used to achieve top-down node assembly and connection. The nodes are spliced ​​together through vertical plug-in and hanging, and then connected through unilateral self-locking high-strength bolts. The installation of the nodes is convenient, and the operation is simpler than the traditional prefabricated structure, which requires horizontal splicing and positioning at the nodes.

[0069] The assembly method of the modular assembled SRC beam-SRC corbel column frame structure is based on the modular assembled SRC beam-SRC corbel column frame structure and is assembled through the following steps:

[0070] Step 1: The factory manufactures the beam-beam connection core end 10301, the beam-beam connection core web 10302, the beam-beam connection core flange 10303, and the beam-beam connection core end plate 10304. The beam-beam connection core end 10301 is welded to one side of the beam-beam connection core end plate 10304, and the beam-beam connection core web 10302 and the beam-beam connection core flange 10303 are welded to the other side of the beam-beam connection core end plate 10304. Threaded holes 10305 for the beam-beam connection core end are opened at corresponding positions of the beam-beam connection core end 10301, and bolt holes 10306 for the beam-beam connection core web are opened at corresponding positions of the beam-beam connection core web 10302. Thus, the beam-beam connection core 103 is completed.

[0071] Step 2: The factory manufactures the SRC corbel column steel frame 101, ties the steel bars, makes the formwork, pours the column concrete 102 and the corbel beam concrete 10204 in sequence, and reserves the column concrete bolt holes 10201, grouting holes 10202 and slurry outlet holes 10203 respectively; after the concrete curing is completed, the beam-beam connection core web bolt holes 10306 are aligned with the corbel beam H-shaped steel bolt holes 10104, and the beam-beam connection core 103 and the corbel beam H-shaped steel 10103 in the SRC corbel column steel frame 101 are connected as a whole by ordinary high-strength bolts 5, and the beam-beam connection core flange 10303 is connected to the flange of the corbel beam H-shaped steel 10103 by welding, thus completing the manufacture of the component SRC corbel column 1; similarly, the corbel columns at different positions in the frame are completed in sequence, such as: side SRC corbel columns, middle SRC corbel columns and corner SRC corbel columns;

[0072] Step 3: The factory manufactures the beam shoe end 20301, beam shoe web 20302, beam shoe flange 20303, and beam shoe end plate 20304. The beam shoe end 20301 is welded to one side of the beam shoe end plate 20304, and the beam shoe web 20302 and beam shoe flange 20303 are welded to the other side of the beam shoe end plate 20304. The beam shoe end bolt holes 20305 and beam shoe web bolt holes 20306 are respectively set at the corresponding positions of the beam shoe end 20301 and the beam shoe web 20302. The beam shoe 203 component is now completed.

[0073] Step 4: The factory manufactures the H-shaped steel beam 201 and opens bolt holes 20101 at corresponding positions on the H-shaped steel beam 201. The factory then ties the steel bars, creates formwork, and pours the concrete beam 202. After the concrete is cured, the H-shaped steel bolt holes 20101 are aligned with the web bolt holes 20306 of the beam shoe. The beam shoe 203 is then connected to the H-shaped steel beam 201 using conventional high-strength bolts 5. This completes the SRC beam 2 component.

[0074] Step 5: The factory manufactures the node core plate 301 and L-shaped end plates 302, and opens L-shaped end plate threaded holes 30201 at corresponding positions on the L-shaped end plates 302. Then, four L-shaped end plates 302 of the same size are welded to both sides of the node core plate 301 in groups, thus completing the column-column node core 3.

[0075] Step 6: Pre-embed the column-column node core 3 in the foundation at the construction site;

[0076] Step 7: hoist, align and put the SRC corbel column 1 and the column-column node core 3 embedded in the foundation at the construction site, and then connect the SRC corbel column 1 and the column-column node core 3 into a whole through unilateral self-locking high-strength bolts 4. Similarly, assemble the other SRC corbel columns 1 across one layer in sequence;

[0077] Step 8: Hoist the SRC beam 2 from top to bottom at the construction site, aligning the bolt hole 20305 at the end of the middle beam shoe of the SRC beam 2 with the threaded hole 10305 at the end of the middle beam-beam connection core of the SRC corbel column 1. Then, connect the SRC beam 2 and the SRC corbel column 1 as a whole through the unilateral self-locking high-strength bolt 4. Similarly, assemble the SRC beams 2 of other spans one layer at a time.

[0078] Step 9: Hoist the column-column node core 3 from top to bottom on the construction site, align and put it in place with the top of the first-floor SRC corbel column 1, and then connect the second-floor column-column node core 3 and the first-floor SRC corbel column 1 into a whole through the unilateral self-locking high-strength bolts 4. Similarly, assemble the column-column node cores 3 on other axes of the second floor in sequence;

[0079] Step 10: Repeat steps 8 and 9 at the construction site to complete the assembly process of one or more prefabricated SRC beam-SRC corbel column frame structures.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention. They should all be included in the scope of the technical solution for protection of the present invention.

Claims

1. A modular assembled SRC beam-SRC corbel column frame structure, characterized by: It includes several SRC corbel columns, several SRC beams, several column-column node cores, several unilateral self-locking high-strength bolts and several ordinary high-strength bolts; The SRC corbel column comprises a corbel column steel frame and column concrete; the corbel column steel frame comprises a column cross steel and a corbel beam H-shaped steel, the corbel beam H-shaped steel is welded and fixed to at least one side of the middle portion of the column cross steel, the column concrete is wrapped around the surface of the corbel column steel frame, the column cross steel and the upper and lower ends of the column concrete are provided with bolt holes with matching positions, a grouting hole and a slurry outlet hole are reserved at the bottom end of the column concrete, a beam-beam connection core is provided at the outer end of the corbel beam H-shaped steel, and a bolt hole is provided at one end of the beam-beam connection core near the corbel beam H-shaped steel and a threaded hole is provided at the other end; The SRC beam includes an H-shaped steel beam, beam concrete, and a beam shoe. The beam concrete is wrapped around the surface of the H-shaped steel beam. The beam shoe includes a front end and a rear end. The front end of the beam shoe is provided with a hanging opening and a threaded hole matching the beam-beam connection core. The rear end of the beam shoe is provided with a bolt hole. The two ends of the H-shaped steel beam are connected to the rear end of the beam shoe by ordinary high-strength bolts. The front end of the beam shoe of the SRC beam is hung and positioned with the front end of the beam-beam connection core of the SRC corbel column and fixed by a unilateral self-locking high-strength bolt. The column-column node core comprises a node core plate and two sets of L-shaped end plates installed on both end surfaces of the node core plate, one end of the L-shaped end plate is connected to the node core plate by welding and encloses to form a columnar joint, and threaded holes are provided on the connection surfaces of the L-shaped end plates; The two vertically adjacent SRC corbel columns are fixed together through the column-column node core and single-sided self-locking high-strength bolts, and the two horizontally adjacent SRC corbel columns are fixed together through the SRC beam and single-sided self-locking high-strength bolts to form a frame structure as a whole.

2. The modular assembled SRC beam-SRC corbel column frame structure according to claim 1 is characterized in that: The column cross-shaped steel includes a core web with a cross-shaped cross section and four flange plates formed at the outer ends of the cross-shaped core web. Adjacent flange plates are perpendicular to each other and do not contact each other. Bolt holes are respectively provided at both ends of each flange plate of the column cross-shaped steel.

3. The modular assembled SRC beam-SRC corbel column frame structure according to claim 2 is characterized in that: The inner end of the corbel H-shaped steel is welded to the flange plate in the middle of the column cross-shaped steel. The number of the corbel H-shaped steels in a single SRC corbel column is one, two, three or four.

4. The modular assembled SRC beam-SRC corbel column frame structure according to claim 3 is characterized in that: A plurality of corbel H-shaped steel bolt holes are arranged on the web of the outer end of the corbel H-shaped steel, and the beam-beam connection core includes a beam-beam connection core end head, a beam-beam connection core web, a beam-beam connection core flange and a beam-beam connection core end plate. The beam-beam connection core end head is rectangular and the two side plates are provided with beam-beam connection core end head threaded holes. The rear end of the beam-beam connection core end head is welded to the front end face of the beam-beam connection core end plate, and two pieces of the beam-beam connection core web plates are welded in the middle of the rear end face of the beam-beam connection core end plate. A gap is formed between the plates for clamping the web of the corbel beam H-shaped steel, and a through bolt hole is set on the web of the beam-beam connection core; the upper and lower parts of the rear end surface of the beam-beam connection core end plate are respectively welded with the beam-beam connection core flange, and a gap is set in the center position of the beam-beam connection core flange for clamping the web of the corbel beam H-shaped steel, wherein the width of each upper and lower beam-beam connection core flange is equal to the width of the flange plates on both sides of the web of the corbel beam H-shaped steel, and the beam-beam connection core flange is connected to the flange of the corbel beam H-shaped steel by welding.

5. The modular assembled SRC beam-SRC corbel column frame structure according to claim 4 is characterized in that: The webs at both ends of the H-shaped steel of the SRC beam are provided with several bolt holes, and the beam shoe includes a beam shoe end, a beam shoe web, a beam shoe flange and a beam shoe end plate, wherein the beam shoe end is called the front end of the beam shoe, and the beam shoe web and the beam shoe flange are called the rear end of the beam shoe. The beam shoe end is a gate-shaped structure that matches the beam-beam connection core end, and several threaded holes are provided on both sides of the beam shoe end. The rear end of the beam shoe end is welded to the front end face of the beam shoe end plate, and two beam shoe webs are welded in the middle position of the rear end face of the beam shoe end plate, and a gap for clamping the web of the H-shaped steel of the beam is provided between the two beam shoe webs, and a through bolt hole is provided on the beam shoe web; the upper and lower parts of the rear end face of the beam shoe end plate are respectively provided with the beam shoe flanges, and the middle part of the beam shoe flange is provided with a gap for clamping the web of the H-shaped steel of the beam, and the width of the upper and lower beam shoe flanges is equal to the width of the flange plates on both sides of the web of the H-shaped steel of the beam.

6. The modular assembled SRC beam-SRC corbel column frame structure according to claim 5, characterized in that: The node core plate of the column-column node core is rectangular as a whole, and there are four L-shaped end plates in a group. The four L-shaped end plates are combined to form a rectangular opening, and a joint is left between two adjacent L-shaped end plates for socket connection with the web of the column cross steel in the corbel column steel frame. The threaded holes on the surface of the L-shaped end plates are used to match the bolt holes on the flange plate of the column cross steel.

7. A method for assembling a modular assembled SRC beam-SRC corbel column frame structure, characterized by: The modular assembled SRC beam-SRC corbel column frame structure according to any one of claims 1 to 6 is assembled by the following steps: Step 1) The factory manufactures the beam-beam connection core end, beam-beam connection core web, beam-beam connection core flange, and beam-beam connection core end plate. The beam-beam connection core end, beam-beam connection core end plate, beam-beam connection core web, and beam-beam connection core flange are welded together. Threaded holes for the beam-beam connection core end are opened at the corresponding positions of the beam-beam connection core end, and bolt holes for the beam-beam connection core web are opened at the corresponding positions of the beam-beam connection core web. This completes the beam-beam connection core component. Step 2) The factory fabricates the SRC corbel steel frame, sequentially tying the steel bars, creating formwork, pouring the column concrete and the corbel concrete, and reserving holes for column concrete bolts, grouting, and grouting. After the concrete is cured, the web bolt holes of the beam-beam connection core are aligned with the bolt holes of the corbel H-steel. Conventional high-strength bolts are used to connect the beam-beam connection core to the corbel H-steel in the SRC corbel steel frame. The flanges of the beam-beam connection core are then welded to the flanges of the corbel H-steel. This completes the fabrication of the SRC corbel. Similarly, the corbels in different positions within the framework are completed. Step 3) The factory manufactures the beam shoe end, beam shoe web, beam shoe flange, and beam shoe end plate. The beam shoe end, beam shoe end plate, beam shoe web, and beam shoe flange are welded together, and the beam shoe end bolt holes and beam shoe web bolt holes are set at the corresponding positions of the beam shoe end and beam shoe web, thus completing the component beam shoe. Step 4) The factory fabricates H-beam steel and creates bolt holes for the H-beam steel at the corresponding locations. Rebar is then tied, formwork is fabricated, and concrete is poured. After the concrete is cured, the H-beam bolt holes are aligned with the bolt holes on the web of the beam shoe. The shoe and H-beam are then connected as a whole using conventional high-strength bolts. This completes the SRC beam. Step 5) The factory fabricates the node core plate and L-shaped end plates, creates threaded holes in the L-shaped end plates at their corresponding locations, and then welds four L-shaped end plates of the same size to both sides of the node core plate. This completes the column-to-column node core. Step 6) Pre-embed column-column joint cores in the foundation at the construction site; Step 7) At the construction site, hoist, align, and position the SRC corbel column and the pre-buried column-column joint core in the foundation. Connect the SRC corbel column and the column-column joint core into a whole using unilateral self-locking high-strength bolts. Similarly, assemble the other SRC corbel columns spanning one floor in sequence. Step 8) Lift the SRC beam from top to bottom at the construction site, aligning the bolt holes at the ends of the SRC beam boots with the threaded holes at the ends of the beam-beam connection cores of the SRC corbel columns. Connect the SRC beam and the SRC corbel columns together using single-sided self-locking high-strength bolts. Similarly, assemble the SRC beams of the other spans one layer at a time. Step 9) At the construction site, align the column-column joint core with the top of the first-floor SRC corbel column from top to bottom and put it in place. Then, connect the second-floor column-column joint core and the first-floor SRC corbel column into a whole using single-sided self-locking high-strength bolts. Similarly, assemble the column-column joint cores on other axes of the second floor in sequence. Step 10) Repeat steps 8 and 9 at the construction site to complete the assembly process of one or more prefabricated SRC beam-SRC corbel column frame structures.

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