A concrete precast component

Abstract

The utility model relates to the technical field of building engineering, concretely relates to a concrete prefabricated component, the concrete prefabricated component, include: concrete steel roof beam includes first concrete wrapping layer, steel roof beam and first stiffening component, steel roof beam sets up in first concrete wrapping layer, at least one end of steel roof beam is out of first concrete wrapping layer, and the end of steel roof beam out of first concrete wrapping layer has first connecting portion, and first stiffening component sets up in first concrete wrapping layer, and first stiffening component is located the circumferential side of steel roof beam, concrete steel column includes second concrete wrapping layer, steel column and second stiffening component, steel column sets up in second concrete wrapping layer, at least one end of steel column is out of second concrete wrapping layer, and the end of steel column out of second concrete wrapping layer has second connecting portion, and second stiffening component sets up in second concrete wrapping layer, and second stiffening component is located the circumferential side of steel column, and the lateral wall of concrete steel column is provided with the third connecting portion fixed connection with first connecting portion.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a precast concrete component. Background Technology

[0002] Concrete components are inevitably used in building construction, such as concrete steel beams and concrete steel columns. Concrete steel beams are essentially steel beams encased in concrete, and concrete steel columns are steel columns encased in concrete. Due to limited site conditions and the time-consuming and difficult process of fabricating concrete steel beams and columns on-site, prefabrication is usually adopted. The concrete steel beams and columns are first fabricated in a factory and then transported to the construction site. However, because prefabricated concrete components are generally quite long, they are prone to cracking due to stress concentration during transportation and hoisting, rendering them unusable and requiring refabrication, which affects the construction progress. Utility Model Content

[0003] In view of this, the present invention provides a precast concrete component to solve the problem that precast concrete components are prone to cracking due to stress concentration during transportation and hoisting, resulting in unusability and the need to re-fabricate precast concrete components, which affects the construction progress.

[0004] This utility model provides a precast concrete component, comprising:

[0005] A concrete-steel beam includes a first concrete covering layer, a steel beam, and a first stiffening assembly. The steel beam is disposed within the first concrete covering layer, and at least one end of the steel beam extends out of the first concrete covering layer. The end of the steel beam extending out of the first concrete covering layer has a first connecting portion. The first stiffening assembly is disposed within the first concrete covering layer and is located on the periphery of the steel beam.

[0006] A concrete-steel column includes a second concrete sheath, a steel column, and a second stiffening assembly. The steel column is disposed within the second concrete sheath, with at least one end extending out of the second concrete sheath. The end of the steel column extending out of the second concrete sheath has a second connecting portion. The second stiffening assembly is disposed within the second concrete sheath and is located around the periphery of the steel column. The sidewall of the concrete-steel column is provided with a third connecting portion that is fixedly connected to the first connecting portion.

[0007] In one optional embodiment, the first stiffening assembly includes a plurality of transverse reinforcing bars disposed on both sides of the steel beam and a plurality of first stirrups, with adjacent transverse reinforcing bars spaced apart, and the plurality of first stirrups spaced apart along the extension direction of the transverse reinforcing bars, one end of the first stirrups being fixedly connected to the bottom surface of the upper flange plate of the steel beam, and the plurality of transverse reinforcing bars being fixedly connected to the first stirrups respectively.

[0008] In one optional embodiment, the top surface of the upper flange of the steel beam is on the same plane as the top surface of the first concrete wrapping layer. A plurality of studs are provided on the top surface of the upper flange and the bottom surface of the lower flange of the steel beam. The plurality of studs are spaced apart along the extension direction of the steel beam. The studs on the bottom surface of the lower flange of the steel beam are located inside the first concrete wrapping layer, and the studs on the top surface of the upper flange of the steel beam are located outside the first concrete wrapping layer.

[0009] In one optional embodiment, the end of the transverse reinforcing bar facing the first connecting portion has a first connecting segment extending out of the first concrete wrapping layer. The first connecting segment is located on both sides of the first connecting portion. Connecting reinforcing bars are provided on both sides of the third connecting portion. One end of the connecting reinforcing bar is fixedly connected to the steel column, and the other end of the connecting reinforcing bar extends out of the first concrete wrapping layer and is fixedly connected to the first connecting segment.

[0010] In one optional embodiment, steel reinforcement connecting plates are provided on both sides of the third connecting portion, one end of the steel reinforcement connecting plate is fixedly connected to the steel column, the other end of the steel reinforcement connecting plate extends out of the second concrete wrapping layer, and the steel reinforcement connecting plate is fixedly connected to the connecting steel reinforcement.

[0011] In one optional embodiment, the second stiffening assembly includes a plurality of longitudinal reinforcing bars disposed on the outer periphery of the steel column and a plurality of second stirrups, with adjacent longitudinal reinforcing bars spaced apart, and the plurality of second stirrups spaced apart along the extension direction of the longitudinal reinforcing bars, the second stirrups being sleeved on the outer periphery of the steel column, and the plurality of longitudinal reinforcing bars being fixedly connected to the second stirrups respectively.

[0012] In one optional embodiment, a plurality of studs are provided on the outer periphery of the steel column, and the plurality of studs are spaced apart along the extension direction of the steel column.

[0013] In one alternative embodiment, the end of the longitudinal steel bar facing the second connection portion has a second connecting segment extending out of the second concrete wrapping layer. The second connecting segment is located on both sides of the second connection portion and is fixedly connected to the second connecting segment of the adjacent concrete steel column by an extrusion sleeve.

[0014] In one optional embodiment, ear plates are provided on both sides of the second connecting part, and the ear plates of adjacent second connecting parts are fixedly connected by ear plate connecting plates. The ear plates are provided with ear plate holes, and the ear plate connecting plates are provided with mating holes that mate with the ear plate holes. Bolts pass through the ear plate holes and the mating holes in sequence to fix the ear plates to the ear plate connecting plates.

[0015] In one optional embodiment, the first connecting part is connected to the third connecting part by a connector. Both the first connecting part and the third connecting part are provided with a first connecting hole. The connector is provided with a second connecting hole corresponding to the first connecting hole. The bolt passes through the first connecting hole and the second connecting hole in sequence, so that the first connecting part is fixedly connected to the connector, and the third connecting part is fixedly connected to the connector.

[0016] Beneficial effects:

[0017] 1. By installing a first stiffening component and a second stiffening component in the concrete steel beams and columns respectively, the strength of the concrete steel beams and columns is improved. During transportation or hoisting, the first stiffening component and the second stiffening component can distribute the corresponding stress, preventing stress concentration at one point, which could cause cracks in the concrete steel beams and columns, rendering them unusable. This is beneficial for improving the construction progress.

[0018] 2. By fixing multiple transverse steel bars to the first stirrups respectively, and setting multiple first stirrups at intervals along the extension direction of the transverse steel bars, the transverse steel bars are fixed at multiple points, thus ensuring the overall stability of the concrete steel beam.

[0019] 3. By setting multiple studs on the top surface of the upper flange and the bottom surface of the lower flange of the steel beam, and multiple studs on the outer periphery of the steel column, the bonding effect between the steel beam and the first concrete wrapping layer, as well as the bonding effect between the steel column and the second concrete wrapping layer, can be improved.

[0020] 4. By setting connecting reinforcing bars and fixing one end of the connecting reinforcing bars to the steel column, and fixing the first connecting section to the other end of the connecting reinforcing bars, the number of connection points between the concrete steel beam and the concrete steel column can be increased, making the connection between the concrete steel beam and the concrete steel column more stable.

[0021] 5. By setting up a rebar connection plate, the rebar connection plate is fixedly connected to the connecting rebar, thereby improving the strength of the connecting rebar.

[0022] 6. By fixing multiple longitudinal steel bars to the second stirrups respectively, and by setting multiple second stirrups at intervals along the extension direction of the longitudinal steel bars, the longitudinal steel bars are fixed at multiple points, thus ensuring the overall stability of the concrete steel beam.

[0023] 7. The second connecting sections of adjacent concrete steel columns are fixedly connected by extrusion sleeves. The adjacent concrete steel columns are fixedly connected to each other through the second connecting sections, which increases the connection points of adjacent concrete steel columns and makes the connection between adjacent concrete steel columns more stable. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a front view of the concrete steel beam according to an embodiment of the present utility model;

[0026] Figure 2 This is a cross-sectional view of the concrete steel beam according to an embodiment of the present utility model;

[0027] Figure 3 This is a front view of a concrete steel column according to an embodiment of the present utility model;

[0028] Figure 4 This is a cross-sectional view of the concrete steel column according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the connection between the concrete steel beam and the concrete steel column in an embodiment of this utility model;

[0030] Figure 6 This is a schematic diagram of the connector according to an embodiment of the present utility model;

[0031] Figure 7 This is a schematic diagram of the connection between concrete steel columns in an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Concrete steel beam; 101. First concrete wrapping layer; 102. Steel beam; 103. First stiffening assembly; 1031. Transverse reinforcement; 1032. First stirrup; 104. First connection part; 2. Concrete steel column; 201. Second concrete wrapping layer; 202. Steel column; 203. Second stiffening assembly; 2031. Longitudinal reinforcement; 2032. Second stirrup; 204. Second connection part; 205. Third connection part; 3. Stud; 4. Connecting reinforcement; 5. Reinforcement connecting plate; 6. Ear plate; 7. Ear plate hole; 8. Ear plate connecting plate; 9. Mating hole; 10. Connector; 11. First connecting hole; 12. Second connecting hole; 13. Lifting ring; 14. Extrusion sleeve. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] The following is combined with Figures 1 to 7 The following describes embodiments of the present invention.

[0036] According to an embodiment of the present invention, a precast concrete component is provided, comprising: a concrete steel beam 1 and a concrete steel column 2.

[0037] Specifically, the concrete-steel beam 1 includes a first concrete wrapping layer 101, a steel beam 102, and a first stiffening component 103. The steel beam 102 is disposed within the first concrete wrapping layer 101, and at least one end of the steel beam 102 extends out of the first concrete wrapping layer 101. The end of the steel beam 102 extending out of the first concrete wrapping layer 101 has a first connecting portion 104. The first stiffening component 103 is disposed within the first concrete wrapping layer 101 and is located on the periphery of the steel beam 102. The concrete-steel column 2 includes a second concrete covering layer 201, a steel column 202, and a second stiffening component 203. The steel column 202 is disposed within the second concrete covering layer 201, and at least one end of the steel column 202 extends out of the second concrete covering layer 201. The end of the steel column 202 extending out of the second concrete covering layer 201 has a second connecting portion 204. The second stiffening component 203 is disposed within the second concrete covering layer 201 and is located around the periphery of the steel column 202. The side wall of the concrete-steel column 2 is provided with a third connecting portion 205 that is fixedly connected to the first connecting portion 104.

[0038] In this embodiment, the first concrete wrapping layer 101 encloses the steel beam 102 and the first stiffening component 103. The first stiffening component 103 is disposed around the periphery of the steel beam 102. At least one end of the steel beam 102 extends out of the first concrete wrapping layer 101. The end of the steel beam 102 extending out of the first concrete wrapping layer 101 has a first connecting portion 104. The concrete steel beam 1 can be fixedly connected to the first connecting portion 104 of the adjacent concrete steel beam 1 through the first connecting portion 104 to realize the connection of the adjacent concrete steel beam 1. The concrete steel beam 1 can also be fixedly connected to the concrete steel column 2 through the first connecting portion 104. The second concrete wrapping layer 201 encloses the steel column 202 and the second stiffening component 203. The second stiffening component 203 is disposed around the steel column 202. At least one end of the steel column 202 extends out of the second concrete wrapping layer 201. The end of the steel column 202 extending out of the second concrete wrapping layer 201 has a second connecting portion 204. The concrete steel column 2 can be fixedly connected to the second connecting portion 204 of the adjacent concrete steel column 2 through the second connecting portion 204 to realize the connection of the adjacent concrete steel columns 2. The side of the concrete steel column 2 is also provided with a third connecting portion 205. One end of the third connecting portion 205 extends into the second concrete wrapping layer 201 and is fixedly connected to the steel column 202. The other end of the third connecting portion 205 is located outside the second concrete wrapping layer 201. The third connecting portion 205 is fixedly connected to the first connecting portion 104 to fix the concrete steel column 2 to the concrete steel beam 1.

[0039] Preferably, the third connecting part 205 is a cow leg.

[0040] It should be noted that by setting the first stiffening component 103 and the second stiffening component 203 in the concrete steel beam 1 and the concrete steel column 2 respectively, the strength of the concrete steel beam 1 and the concrete steel column 2 is improved. During transportation or hoisting, the first stiffening component 103 and the second stiffening component 203 can distribute the corresponding stress, preventing stress concentration at one point, which could cause cracks in the concrete steel beam 1 and the concrete steel column 2, rendering them unusable. This is beneficial to improving the construction progress.

[0041] In one embodiment, the first stiffening assembly 103 includes a plurality of transverse reinforcing bars 1031 and a plurality of first stirrups 1032 disposed on both sides of the steel beam 102. Adjacent transverse reinforcing bars 1031 are spaced apart, and the plurality of first stirrups 1032 are spaced apart along the extension direction of the transverse reinforcing bars 1031. One end of the first stirrup 1032 is fixedly connected to the bottom surface of the upper flange plate of the steel beam 102, and the plurality of transverse reinforcing bars 1031 are respectively fixedly connected to the first stirrups 1032.

[0042] In this embodiment, as Figure 2As shown, the first stiffening component 103 includes six transverse reinforcing bars 1031, which are located on both sides of the steel beam 102. The transverse reinforcing bars 1031 on both sides of the steel beam 102 are arranged opposite each other. First stirrups 1032 are located outside the six transverse reinforcing bars 1031 and can wrap around them. The six transverse reinforcing bars 1031 are fixedly connected to the first stirrups 1032. Multiple first stirrups 1032 are spaced apart along the extension direction of the transverse reinforcing bars 1031, achieving multi-point fixation of the transverse reinforcing bars 1031. The upper end of the first stirrups 1032 is fixedly connected to the bottom surface of the upper flange plate. The first stirrups 1032 and the transverse reinforcing bars 1031 can effectively improve the strength of the concrete steel beam 1. The number of first stirrups 1032 can be determined according to the required process and the length of the transverse reinforcing bars 1031, and is not specifically limited here. Preferably, the six transverse reinforcing bars 1031 are respectively tied and fixed to the first stirrup 1032 by thin steel wire, and the six transverse reinforcing bars 1031 can also be welded and fixed to the first stirrup 1032 respectively.

[0043] In other embodiments, the first stiffening component 103 may include four or eight or other numbers of transverse reinforcing bars 1031. The number of transverse reinforcing bars 1031 may be determined according to the required process and the length of the steel beam 102, and is not specifically limited here.

[0044] In one embodiment, the top surface of the upper flange of the steel beam 102 and the top surface of the first concrete wrapping layer 101 are located on the same plane. A plurality of studs 3 are provided on the top surface of the upper flange and the bottom surface of the lower flange of the steel beam 102. The plurality of studs 3 are spaced apart along the extension direction of the steel beam 102. The studs 3 on the bottom surface of the lower flange of the steel beam 102 are located inside the first concrete wrapping layer 101, and the studs 3 on the top surface of the upper flange of the steel beam 102 are located outside the first concrete wrapping layer 101.

[0045] In this embodiment, as Figure 1 and Figure 2 As shown, the top surface of the upper flange of the steel beam 102 and the top surface of the first concrete covering layer 101 are on the same plane. The top surface of the upper flange of the steel beam 102 exposes the first concrete covering layer 101. Multiple studs 3 are provided on the top surface of the upper flange and the bottom surface of the lower flange of the steel beam 102. The studs 3 on the bottom surface of the lower flange increase the contact area between the steel beam 102 and the first concrete covering layer 101, effectively improving the bonding effect between the steel beam 102 and the first concrete covering layer 101. The number of studs 3 can be determined according to the required process and the length of the steel beam 102, and is not specifically limited here.

[0046] In one embodiment, the end of the transverse reinforcing bar 1031 facing the first connecting portion 104 has a first connecting segment extending out of the first concrete covering layer 101. The first connecting segment is located on both sides of the first connecting portion 104. Connecting reinforcing bars 4 are provided on both sides of the third connecting portion 205. One end of the connecting reinforcing bar 4 is fixedly connected to the steel column 202, and the other end of the connecting reinforcing bar 4 extends out of the first concrete covering layer 101 and is fixedly connected to the first connecting segment.

[0047] In this embodiment, the end of the transverse reinforcing bar 1031 facing the first connecting part 104 has a first connecting section (not shown). The first connecting section extends out of the first concrete wrapping layer 101. Connecting reinforcing bars 4 are provided on both sides of the third connecting part 205. One end of the connecting reinforcing bar 4 is fixedly connected to the steel column 202, and the first connecting section is fixedly connected to the other end of the connecting reinforcing bar 4. This increases the number of connection points between the concrete steel beam 1 and the concrete steel column 2, making the connection between the concrete steel beam 1 and the concrete steel column 2 more stable. Preferably, the first connecting section is welded to the connecting reinforcing bar 4.

[0048] It should be noted that after the first connecting segment is welded to the connecting steel bar 4, and after the first connecting part 104 and the third connecting part 205 are connected, the connection point between the concrete steel beam 1 and the concrete steel column 2 needs to be poured. Similarly, after adjacent concrete steel beams 1 are fixed through the first connecting part 104, the connection point between adjacent concrete steel beams 1 needs to be poured; after adjacent concrete steel columns 2 are fixed through the second connecting part 204, the connection point between adjacent concrete steel columns 2 needs to be poured. After the connecting steel bar 4 is fixedly connected to the first connecting segment, the first stirrup 1032 needs to be set on the first connecting segment and the connecting steel bar 4 before pouring.

[0049] In one embodiment, the third connecting part 205 is provided with steel bar connecting plates 5 on both sides. One end of the steel bar connecting plate 5 is fixedly connected to the steel column 202, and the other end of the steel bar connecting plate 5 extends out of the second concrete wrapping layer 201. The steel bar connecting plate 5 is fixedly connected to the connecting steel bar 4.

[0050] In this embodiment, as Figure 5 As shown, the third connecting part 205 is provided with steel bar connecting plates 5 on both sides. The steel bar connecting plates 5 on both sides are arranged opposite to each other. The steel bar connecting plates 5 are located on the side of the connecting steel bar 4 away from the third connecting part 205. The steel bar connecting plates 5 are fixedly connected to the connecting steel bar 4, thereby improving the strength of the connecting steel bar 4.

[0051] In one embodiment, the second stiffening assembly 203 includes a plurality of longitudinal reinforcing bars 2031 disposed on the outer periphery of the steel column 202 and a plurality of second stirrups 2032. Adjacent longitudinal reinforcing bars 2031 are spaced apart, and the plurality of second stirrups 2032 are spaced apart along the extension direction of the longitudinal reinforcing bars 2031. The second stirrups 2032 are sleeved on the outer periphery of the steel column 202, and the plurality of longitudinal reinforcing bars 2031 are respectively fixedly connected to the second stirrups 2032.

[0052] In this embodiment, as Figure 4 As shown, the second stiffening component 203 includes sixteen longitudinal reinforcing bars 2031, which are located around the perimeter of the steel column 202. The longitudinal reinforcing bars 2031 on opposite sides of the steel column 202 are arranged opposite each other. Second stirrups 2032 are located outside the sixteen longitudinal reinforcing bars 2031, and can wrap around the sixteen longitudinal reinforcing bars 2031. The sixteen longitudinal reinforcing bars 2031 are fixedly connected to the second stirrups 2032. Multiple second stirrups 2032 are spaced apart along the extension direction of the longitudinal reinforcing bars 2031, achieving multi-point fixation of the longitudinal reinforcing bars 2031. The second stirrups 2032 and the longitudinal reinforcing bars 2031 can effectively improve the strength of the concrete steel column 2. The number of second stirrups 2032 can be determined according to the required process and the length of the longitudinal reinforcing bars 2031, and is not specifically limited here.

[0053] Preferably, the sixteen longitudinal reinforcing bars 2031 are respectively tied and fixed to the second stirrups 2032 by thin steel wires, and the sixteen longitudinal reinforcing bars 2031 can also be welded and fixed to the second stirrups 2032 respectively.

[0054] In other embodiments, the second stiffening component 203 may include fourteen or eighteen longitudinal steel bars 2031, the number of which may be determined according to the required process and the length of the steel column 202, and is not specifically limited here.

[0055] In this embodiment, as Figure 4 As shown, multiple studs 3 are provided on the outer periphery of the steel column 202, and the studs 3 are spaced apart along the extension direction of the steel column 202. The studs 3 effectively improve the bonding effect between the steel column 202 and the second concrete wrapping layer 201.

[0056] In one embodiment, the end of the longitudinal steel bar 2031 facing the second connection portion 204 has a second connecting segment extending out of the second concrete wrapping layer 201. The second connecting segment is located on both sides of the second connection portion 204, and the second connecting segment is fixedly connected to the second connecting segment of the adjacent concrete steel column 2 by the extrusion sleeve 14.

[0057] In this embodiment, as Figure 3As shown, the end of the longitudinal steel bar 2031 facing the second connection 204 has a second connection section (not shown) extending out of the second concrete wrapping layer 201. The second connection section is located on both sides of the second connection 204. The second connection sections of adjacent concrete steel columns 2 are fixedly connected by extrusion sleeves 14. The adjacent concrete steel columns 2 are fixedly connected to each other by the second connection section, thereby increasing the connection points of adjacent concrete steel columns 2 and making the connection of adjacent concrete steel columns 2 more stable.

[0058] It should be noted that after the second connecting section of the adjacent concrete steel column 2 is fixedly connected, the second stirrup 2032 needs to be installed on the second connecting section before pouring.

[0059] In one embodiment, ear plates 6 are provided on both sides of the second connecting part 204, and the ear plates 6 of adjacent second connecting parts 204 are fixedly connected by ear plate connecting plates 8. Ear plate holes 7 are provided on the ear plate 6, and mating holes 9 that cooperate with the ear plate holes 7 are provided on the ear plate connecting plates 8. Bolts pass through the ear plate holes 7 and the mating holes 9 in sequence to fix the ear plate 6 and the ear plate connecting plates 8.

[0060] In this embodiment, as Figure 7 As shown, ear plates 6 are provided on both sides of the second connecting part 204. The ear plates 6 of the two opposite second connecting sections are fixedly connected to each other by ear plate connecting plates 8, so that the two opposite second connecting sections correspond to each other. Then, the two second connecting sections are welded and fixed to fix them, so that the adjacent concrete steel columns 2 are fixedly connected. Ear plate holes 7 are provided on the ear plates 6. The upper and lower ends of the ear plate connecting plate 8 are respectively provided with mating holes 9. The mating holes 9 correspond one-to-one with the ear plate holes 7. Bolts (not shown) pass through the ear plate holes 7 and the mating holes 9 in sequence to fix the ear plate connecting plate 8 to the ear plate holes 7.

[0061] It should be noted that in this embodiment, after the two second connecting sections are welded and fixed, the ear plate 6 can be cut before casting. In other embodiments, the ear plate 6 can be cast directly without cutting it.

[0062] In this embodiment, the first connecting part 104 is connected to the third connecting part 205 through the connector 10. Both the first connecting part 104 and the third connecting part 205 are provided with a first connecting hole 11. The connector 10 is provided with a second connecting hole 12 corresponding to the first connecting hole 11. The bolt passes through the first connecting hole 11 and the second connecting hole 12 in sequence, so that the first connecting part 104 is fixedly connected to the connector 10, and the third connecting part 205 is fixedly connected to the connector 10.

[0063] In this embodiment, as Figure 1 , Figure 5 and Figure 6As shown, both the first connecting portion 104 and the third connecting portion 205 are provided with first connecting holes 11, and the two sides of the connector 10 are respectively provided with second connecting holes 12 corresponding to the first connecting holes 11. Figure 5 In this design, the second connecting holes 12 on both sides of the connector 10 correspond to the first connecting holes 11 of the first connecting part 104 and the first connecting holes 11 of the third connecting part 205, respectively. Bolts (not shown) pass through the first connecting holes 11 and the second connecting holes 12 in sequence, thereby fixing the connector 10 to the first connecting part 104 and the third connecting part 205, respectively. The first connecting part 104 and the third connecting part 205 are fixedly connected by the connector 10. After the first connecting part 104 and the third connecting part 205 are fixed by the connector 10, the end of the first connecting part 104 and the end of the third connecting part 205 fit together. Then, the end of the first connecting part 104 and the end of the third connecting part 205 are welded and fixed, and the bolts passing through the first connecting holes 11 and the second connecting holes 12 are replaced with high-strength bolts.

[0064] Furthermore, the upper flange end face of the steel beam 102 also has a lifting ring 13. The lifting ring 13 can be used to facilitate the hoisting of the concrete steel beam 1. After the concrete steel beam 1 is fixed to the concrete steel column 2, the lifting ring 13 can be cut.

[0065] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A precast concrete component, characterized in that, include: A concrete steel beam (1) includes a first concrete wrapping layer (101), a steel beam (102), and a first stiffening assembly (103). The steel beam (102) is disposed within the first concrete wrapping layer (101), at least one end of the steel beam (102) extends out of the first concrete wrapping layer (101), and the end of the steel beam (102) extending out of the first concrete wrapping layer (101) has a first connecting portion (104). The first stiffening assembly (103) is disposed within the first concrete wrapping layer (101) and is located on the periphery of the steel beam (102). A concrete steel column (2) includes a second concrete covering layer (201), a steel column (202), and a second stiffening assembly (203). The steel column (202) is disposed within the second concrete covering layer (201), and at least one end of the steel column (202) extends out of the second concrete covering layer (201). The end of the steel column (202) extending out of the second concrete covering layer (201) has a second connecting portion (204). The second stiffening assembly (203) is disposed within the second concrete covering layer (201) and is located on the periphery of the steel column (202). The side wall of the concrete steel column (2) is provided with a third connecting portion (205) that is fixedly connected to the first connecting portion (104).

2. The precast concrete component according to claim 1, characterized in that, The first stiffening assembly (103) includes a plurality of transverse reinforcing bars (1031) and a plurality of first stirrups (1032) arranged on both sides of the steel beam (102). The adjacent transverse reinforcing bars (1031) are spaced apart, and the plurality of first stirrups (1032) are spaced apart along the extension direction of the transverse reinforcing bars (1031). One end of the first stirrup (1032) is fixedly connected to the bottom surface of the upper flange plate of the steel beam (102), and the plurality of transverse reinforcing bars (1031) are respectively fixedly connected to the first stirrups (1032).

3. The precast concrete component according to claim 2, characterized in that, The top surface of the upper flange of the steel beam (102) is on the same plane as the top surface of the first concrete wrapping layer (101). Multiple studs (3) are provided on the top surface of the upper flange and the bottom surface of the lower flange of the steel beam (102). The multiple studs (3) are spaced apart along the extension direction of the steel beam (102). The studs (3) on the bottom surface of the lower flange of the steel beam (102) are located inside the first concrete wrapping layer (101), and the studs (3) on the top surface of the upper flange of the steel beam (102) are located outside the first concrete wrapping layer (101).

4. The precast concrete component according to claim 2, characterized in that, The transverse reinforcing bar (1031) has a first connecting segment extending out of the first concrete wrapping layer (101) at the end facing the first connecting part (104). The first connecting segment is located on both sides of the first connecting part (104). Connecting reinforcing bars (4) are provided on both sides of the third connecting part (205). One end of the connecting reinforcing bar (4) is fixedly connected to the steel column (202), and the other end of the connecting reinforcing bar (4) extends out of the first concrete wrapping layer (101) and is fixedly connected to the first connecting segment.

5. The precast concrete component according to claim 4, characterized in that, The third connecting part (205) is provided with steel bar connecting plates (5) on both sides. One end of the steel bar connecting plate (5) is fixedly connected to the steel column (202), and the other end of the steel bar connecting plate (5) extends out of the second concrete wrapping layer (201). The steel bar connecting plate (5) is fixedly connected to the connecting steel bar (4).

6. The precast concrete component according to claim 1, characterized in that, The second stiffening assembly (203) includes a plurality of longitudinal reinforcing bars (2031) disposed on the outer periphery of the steel column (202) and a plurality of second stirrups (2032). Adjacent longitudinal reinforcing bars (2031) are spaced apart, and the plurality of second stirrups (2032) are spaced apart along the extension direction of the longitudinal reinforcing bars (2031). The second stirrups (2032) are sleeved on the outer periphery of the steel column (202), and the plurality of longitudinal reinforcing bars (2031) are respectively fixedly connected to the second stirrups (2032).

7. The precast concrete component according to claim 6, characterized in that, The outer periphery of the steel column (202) is provided with a plurality of studs (3), and the plurality of studs (3) are spaced apart along the extension direction of the steel column (202).

8. The precast concrete component according to claim 6, characterized in that, The longitudinal steel bar (2031) has a second connecting section extending out of the second concrete wrapping layer (201) at the end facing the second connecting part (204). The second connecting section is located on both sides of the second connecting part (204). The second connecting section is fixedly connected to the second connecting section of the adjacent concrete steel column (2) by extrusion sleeve (14).

9. The precast concrete component according to claim 8, characterized in that, Ear plates (6) are provided on both sides of the second connecting part (204). The ear plates (6) of adjacent second connecting parts (204) are fixedly connected by ear plate connecting plates (8). Ear plates (6) are provided with ear plate holes (7). The ear plate connecting plates (8) are provided with mating holes (9) that cooperate with the ear plate holes (7). Bolts pass through the ear plate holes (7) and the mating holes (9) in sequence to fix the ear plates (6) and the ear plate connecting plates (8).

10. The precast concrete component according to claim 1, characterized in that, The first connecting part (104) is connected to the third connecting part (205) through the connector (10). Both the first connecting part (104) and the third connecting part (205) are provided with a first connecting hole (11). The connector (10) is provided with a second connecting hole (12) corresponding to the first connecting hole (11). The bolt passes through the first connecting hole (11) and the second connecting hole (12) in sequence, so that the first connecting part (104) is fixedly connected to the connector (10), and the third connecting part (205) is fixedly connected to the connector (10).

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