Support-free full-assembly type platform canopy

Abstract

The utility model relates to a support-free full-assembly type platform canopy which comprises a prefabricated column, a plurality of supporting columns and a plurality of supporting columns. The prefabricated main beam comprises a connecting part and cantilever beams which oppositely extend from the two sides of the connecting part respectively; the connecting part comprises a base, a main body part and a connecting part; the main body part is positioned above the base; the connecting part is provided with a through groove extending in the vertical direction. The two connecting parts are located on the two sides of the main body part respectively, and a beam nest is defined by the two connecting parts and the base; the base is placed on the top of the prefabricated column, the vertical reserved steel bars penetrate through the through grooves, and concrete is poured into the through grooves. The prefabricated secondary beams are located between the adjacent prefabricated main beams, and the ends of the prefabricated secondary beams are in lap joint in the beam nests; and the edges of the prefabricated boundary beam plates are in lap joint with the prefabricated main beams and the prefabricated secondary beams correspondingly. The whole wet construction amount is small, no temporary support needs to be additionally arranged, and the construction efficiency is high.

Description

Technical Field

[0001] The present application relates to the field of railway engineering technology, and in particular to a support-free fully assembled platform canopy. Background Art

[0002] As prefabricated buildings feature fast on-site construction speed and high efficiency, they can minimize environmental pollution and are currently widely used in infrastructure such as platform canopies. Platform canopies are an important component of railway passenger stations. Prefabricated platform canopies are generally divided into steel structure prefabricated platform canopies and concrete structure prefabricated platform canopies. Steel structure canopies have problems such as easy corrosion, easy instability, poor wind resistance of the roof, and severe wind vibration when trains pass by. Therefore, traditional concrete structure canopies are more reliable. However, prefabricated platform canopies with concrete structures have more post-poured concrete parts, such as beam-column joints. Not only is the amount of on-site wet work large, the amount of formwork erection is large, but temporary supports are also required, resulting in a large amount of construction and low construction efficiency. Utility Model Content

[0003] Based on this, it is necessary to provide a support-free fully assembled platform canopy, and its specific technical solution is as follows.

[0004] A support-free fully assembled platform canopy, comprising:

[0005] Prefabricated columns, multiple prefabricated columns are arranged along the length of the platform canopy; the tops of the prefabricated columns are provided with vertical reserved steel bars exposed outwards;

[0006] The prefabricated main beam comprises a connecting portion and cantilever beams extending from both sides of the connecting portion. The connecting portion comprises a base, a main body, and a connecting portion. The main body is located above the base. The connecting portion is provided with a through slot extending in the vertical direction. The two connecting portions are located on both sides of the main body and surround the base to form a beam socket. The base is placed on the top of the prefabricated column, the vertical reserved steel bars pass through the through slot, and concrete is poured in the through slot.

[0007] The precast secondary beam is located between adjacent precast main beams, and the ends of the precast secondary beam are overlapped in the beam sockets;

[0008] The edges of the prefabricated side beam plates are overlapped on the prefabricated main beam and prefabricated secondary beam respectively.

[0009] Furthermore, a reserved groove is provided in the middle of the top of the prefabricated column, and a reserved protrusion is provided below the base to engage with the reserved groove.

[0010] Furthermore, a first reinforcement hole is provided at the end of the prefabricated secondary beam; a through hole is provided on the base; the vertical reserved steel bars pass through the through hole and extend into the first reinforcement hole, and are grouted and anchored to the prefabricated secondary beam.

[0011] Furthermore, a corbel support is provided at one end of the cantilever beam away from the connection portion; a lap side beam is provided at one side of the prefabricated side beam plate away from the prefabricated secondary beam, and the lap side beam is lapped on the corbel support.

[0012] Furthermore, the prefabricated main beam is provided with embedded anchor bolts, which pass through the prefabricated side beam plate and are anchored by grouting.

[0013] Furthermore, it also includes a prefabricated foundation and a steel section assembly, wherein the steel section assembly includes embedded steel sections embedded in the prefabricated column and the prefabricated foundation respectively, and the two embedded steel sections are bolted to each other.

[0014] Furthermore, the embedded steel section includes an embedded part and a flange plate connected to the embedded part, the embedded part includes an embedded steel plate and bolts; the prefabricated column or prefabricated foundation includes vertical steel bars, the embedded steel plate is welded to the vertical steel bars, and multiple bolts are connected to the side of the embedded steel plate and extend toward the center of the prefabricated column or prefabricated foundation; the flange plate abuts against the end face of the prefabricated column or prefabricated foundation, and the flange plate includes a skirt extending to the outside of the prefabricated column or prefabricated foundation; the two flange plates abut each other and the skirts are bolted.

[0015] Furthermore, the side surfaces of the embedded steel plate are connected with reinforcing ribs, and the reinforcing ribs extend to the edge of the skirt.

[0016] Furthermore, the embedded steel section includes an embedded section, an exposed section and an end plate, the embedded section is embedded in the prefabricated column or prefabricated foundation, the exposed section extends outward from the prefabricated column or prefabricated foundation, the end plate is connected to the end of the exposed section, and the end plates of the two embedded steel sections are abutted and bolted; the prefabricated column and the prefabricated foundation are both provided with vertical steel bars extending outward, and the vertical steel bars of the prefabricated column and the prefabricated foundation are connected by a cold-extruded sleeve; a post-cast concrete section surrounding the exposed section is provided between the prefabricated column and the prefabricated foundation.

[0017] Furthermore, the end face of the vertical steel bar does not extend beyond the end face of the end plate away from the exposed section.

[0018] Beneficial effect: The utility model provides a support-free fully assembled platform canopy, in which a through groove for accommodating vertical reserved steel bars is provided on the prefabricated column main beam, and the side wall of the through groove is used as a template. Not only does it not require additional templates, but it only needs to pour concrete into the through groove, and the amount of concrete pouring is small. The prefabricated secondary beams are overlapped in the beam sockets, and the prefabricated side beam plates are overlapped on the prefabricated main beams and prefabricated secondary beams respectively. The overall wet work volume is small, and there is no need to set up additional temporary supports, and the construction efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is the overall schematic diagram of the platform canopy;

[0021] Figure 2 This is a schematic diagram of the prefabricated main beam;

[0022] Figure 3 This is a partial schematic diagram of the prefabricated column;

[0023] Figure 4 Schematic diagram of prefabricated edge beam plate;

[0024] Figure 5 This is a schematic diagram of the connection node between the precast edge beam plate and the precast main beam;

[0025] Figure 6 This is a schematic diagram of a connection method between prefabricated columns and prefabricated foundations;

[0026] Figure 7 This is a perspective view of the precast column;

[0027] Figure 8 This is a schematic diagram of another connection method between precast columns and precast foundations;

[0028] Figure 9 Sectional view of precast foundation;

[0029] Figure 10 This is a cross-sectional view of a precast column.

[0030] Explanation of reference numerals: 1. Prefabricated column; 2. Prefabricated main beam; 3. Prefabricated secondary beam; 4. Prefabricated edge beam plate; 5. Prefabricated foundation; 6. Steel section assembly;

[0031] 11. Reserved vertical reinforcement; 12. Reserved groove;

[0032] 21. Cantilever beam; 22. Base; 23. Main body; 24. Connecting part; 25. Through groove; 26. Beam socket; 28. Through hole; 29. Corbel support;

[0033] 41. Overlap edge beams; 42. Embedded anchor bolts;

[0034] 51. Vertical reinforcement;

[0035] 61. Embedded part; 62. Flange plate; 63. Embedded section; 64. Exposed section; 65. End plate; 66. Cold extruded sleeve; 67. Post-cast concrete section;

[0036] 611, embedded steel plate; 612, studs; 613, reinforcing ribs;

[0037] 621. Hem. DETAILED DESCRIPTION

[0038] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0041] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0042] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0044] Example

[0045] Reference Figure 1 As shown in the figure, this embodiment provides a support-free fully assembled platform canopy, which includes prefabricated columns 1, prefabricated main beams 2, prefabricated secondary beams 3 and prefabricated side beams 4. The above-mentioned prefabricated columns 1, prefabricated main beams 2, prefabricated secondary beams 3 and prefabricated side beams 4 are all reinforced concrete prefabricated parts. It should be noted that in order to better illustrate the structure of the platform canopy in this embodiment, Figure 1 A prefabricated edge beam plate 4 is hidden in it.

[0046] Specifically, the number of the prefabricated columns 1 is multiple, and the multiple prefabricated columns 1 are arranged along the length direction of the platform canopy. Figure 3 As shown, vertical reserved steel bars 11 exposed outward are provided on the top of the prefabricated column 1 .

[0047] Specifically, refer to Figure 2As shown, the prefabricated main beam 2 includes a connecting portion 24 and cantilever beams 21 extending from both sides of the connecting portion 24. The connecting portion 24 includes a base 22, a main portion 23 and a connecting portion 24; the main portion 23 is located above the base 22; the connecting portion 24 is provided with a through slot 25 extending in the vertical direction; the two connecting portions 24 are located on both sides of the main portion 23, and surround the base 22 to form a beam nest 26; the base 22 is placed on the top of the prefabricated column 1, the vertical reserved steel bars 11 pass through the through slot 25, and concrete is poured into the through slot 25. When connecting the prefabricated column 1 and the prefabricated main beam 2, the prefabricated main beam 2 is directly hoisted so that the base 22 is placed on the top of the prefabricated column 1. After the vertical reserved steel bars 11 pass through the through slot 25, concrete is poured into the through slot 25 using the side walls of the through slot 25 as a template. The cantilever beams 21 on both sides maintain balance, and there is no need to set up temporary supports.

[0048] Specifically, the precast secondary beams 3 are located between adjacent precast primary beams 2. That is, a precast secondary beam 3 is provided between each pair of adjacent precast primary beams 2. The ends of the precast secondary beams 3 overlap within the beam recesses 26. During assembly, the precast secondary beams 3 are simply hoisted so that their ends overlap within the beam recesses 26 of the two precast primary beams 2, eliminating the need for temporary supports.

[0049] Specifically, the edges of the prefabricated edge beam 4 are respectively overlapped on the prefabricated main beam 2 and the prefabricated secondary beam 3. When assembling the prefabricated edge beam 4, the prefabricated edge beam 4 is directly hoisted and overlapped on the prefabricated main beam 2 and the prefabricated secondary beam 3. No temporary support is required.

[0050] The present embodiment provides a support-free fully assembled platform canopy, in which a through groove 25 for accommodating the vertical reserved steel bars 11 is provided on the main beam of the prefabricated column 1, and the side wall of the through groove 25 is used as a template. Not only does it not require additional templates, but it is only necessary to pour concrete into the through groove 25, and the amount of concrete poured is small. The prefabricated secondary beam 3 is overlapped in the beam cavity 26, and the prefabricated side beam plate 4 is overlapped on the prefabricated main beam 2 and the prefabricated secondary beam 3 respectively. The overall wet work volume is small, and no additional temporary support is required, and the construction efficiency is high.

[0051] Specifically, continue to refer to Figure 3 As shown, a reserved groove 12 is provided in the middle of the top of the prefabricated column 1, and a reserved protrusion is provided below the base 22 to engage with the reserved groove 12. When assembling the prefabricated main beam 2 and the prefabricated column 1, the engagement of the reserved groove 12 with the reserved protrusion can be used to position and improve stability.

[0052] Specifically, the end of the prefabricated secondary beam 3 is provided with a first reinforcement hole; Figure 2As shown, a through hole 28 is provided on the base 22; the vertical reserved steel bar 11 passes through the through hole 28 and extends into the first reinforcement hole, and then is grouting and anchored to strengthen the reliability of the connection between the prefabricated column 1, the prefabricated main beam 2, and the prefabricated secondary beam 3.

[0053] Specifically, refer to Figure 2 As shown, the cantilever beam 21 is provided with a corbel support 29 at one end away from the connection portion 24; the prefabricated edge beam plate 4 is provided with a lap edge beam 41 on one side away from the prefabricated secondary beam 3, and the lap edge beam 41 is lapped on the corbel support 29. Figure 5 As shown, the precast main beam 2 is provided with embedded anchor bolts 42, and the precast side beam plate 4 is provided with a second reinforcement hole. The embedded anchor bolts 42 pass through the precast side beam plate 4 and are grouted and anchored. This strengthens the reliability of the connection between the precast side beam plate 4 and the precast main beam 2.

[0054] Specifically, the support-free fully assembled platform canopy provided in this embodiment also includes a prefabricated foundation 5. The prefabricated foundation 5 is located below the prefabricated column 1, and the prefabricated foundation 5 and the prefabricated column 1 are connected by a steel section assembly 6. The steel section assembly 6 includes embedded steel sections embedded in the prefabricated column 1 and the prefabricated foundation 5, respectively, that is, one embedded steel section is embedded in the prefabricated column 1, and the other embedded steel section is embedded in the prefabricated foundation 5, and the two embedded steel sections are bolted to each other. When assembling the prefabricated column 1 and the prefabricated foundation 5, the stability of the prefabricated column 1 is ensured by bolting the two steel section assemblies 6 to each other, without the need for additional temporary support.

[0055] Specifically, there are at least two types of pre-buried steel structures, and there are at least two types of connection methods between the prefabricated column 1 and the prefabricated foundation 5 .

[0056] The first connection method between precast column 1 and precast foundation 5 is as follows Figure 6 As shown, the embedded steel section includes an embedded portion 61 and a flange plate 62 connected to the embedded portion 61, wherein the embedded portion 61 includes an embedded steel plate 611 and studs 612. Both the precast column 1 and the precast foundation 5 include vertical reinforcement bars 51, to which the embedded steel plate 611 is welded. Multiple studs 612 are connected to the sides of the embedded steel plate 611 and extend toward the center of the precast column 1 or precast foundation 5. The flange plate 62 abuts against the end face of the precast column 1 or precast foundation 5 and includes a skirt 621 extending outward from the precast column 1 or precast foundation 5. The two flange plates 62 abut against each other, and the skirts 621 are bolted together.

[0057] The first connection method is a fully dry connection, directly bolting the flange plate 62 of the embedded steel. This eliminates the need for wet work on site and the need for temporary support structures, significantly shortening construction time and improving efficiency. By welding the embedded steel plate 611 to the vertical rebar 51 and installing studs 612, the bond strength and shear resistance between the embedded steel and the precast column 1 or precast foundation 5 are enhanced, ensuring the stability of the connection area.

[0058] Specifically, refer to Figure 7 As shown, the vertical steel bars 51 are surrounded by a steel cage; the embedded portion 61 includes four embedded steel plates 611, which are surrounded by a rectangular shape and are welded to the vertical steel bars 51 around the steel cage. This increases the connection strength between the embedded steel plates 611 and the prefabricated column 1 or prefabricated foundation 5.

[0059] Specifically, refer to Figure 6 As shown, the side of the embedded steel plate 611 is connected to a reinforcing rib 613, which extends to the edge of the skirt 621, that is, extends outward from the precast column 1 or precast foundation 5. The provision of the reinforcing rib 613 further enhances the shear resistance of the connection node and improves the stability of the connection between the precast column 1 and the precast foundation 5.

[0060] The second connection method between precast column 1 and precast foundation 5 is as follows Figure 8-10 As shown, the two embedded steel sections each include an embedded section 63, an exposed section 64 and an end plate 65. The embedded section 63 is embedded in the precast column 1 or the precast foundation 5, and the exposed section 64 extends outward from the precast column 1 or the precast foundation 5. The end plate 65 is connected to the end plate 65 of the exposed section 64, and the end plates 65 of the two embedded steel sections are abutted against each other and then bolted, thereby supporting and positioning the precast column 1. The precast column 1 and the precast foundation 5 are both provided with vertical steel bars 51 extending outward, and the vertical steel bars 51 of the precast column 1 and the precast foundation 5 are connected by a cold-extruded sleeve 66; a post-cast concrete section 67 surrounding the exposed section 64 is provided between the precast column 1 and the precast foundation 5.

[0061] When assembling the precast column 1 and precast foundation 5, the two end plates 65 are first abutted and bolted together. A cold-extruded sleeve 66 is pre-installed over the vertical reinforcement 51 of the precast column 1 or precast foundation 5. After aligning the two sets of reinforcement, the cold-extruded sleeve 66 is moved until it partially fits over the other section of vertical reinforcement 51. The sleeve is then cold-extruded to connect the two ends of the vertical reinforcement 51. Finally, a post-cast concrete section 67 is poured to complete the connection between the precast column 1 and precast foundation 5.

[0062] In the second method, a composite steel structure consisting of two embedded steel sections supports and limits the precast column 1, again eliminating the need for additional support structures. This reduces the overall construction workload and improves efficiency. The use of cold-extruded sleeves 66 to connect the vertical reinforcement 51 reduces the need for precision and facilitates construction.

[0063] Specifically, the end surface of the vertical steel bar 51 does not extend beyond the end surface of the end plate 65 away from the exposed section 64. When the two end plates 65 abut each other, the vertical steel bars 51 are prevented from overlapping, ensuring that the two aligned vertical steel bars 51 can be connected by the cold extruded sleeve 66.

[0064] Assembly process:

[0065] The first step is to hoist the prefabricated column 1 above the prefabricated foundation 5 and bolt the two embedded steel sections together. Then, the first or second method is selected for connection according to the specific structure of the prefabricated column 1 and the prefabricated foundation 5.

[0066] The second step is to hoist the prefabricated main beam 2 so that the reserved groove 12 is engaged with the reserved protrusion, and the vertical reserved steel bar 11 is inserted into the through groove 25, and then concrete is poured into the through groove 25.

[0067] The third step is to hoist the precast secondary beam 3 so that the end of the precast secondary beam 3 is overlapped in the beam cavity 26, and the vertical reserved steel bars 11 are passed through the first reinforcement holes on the precast secondary beam 3 and grouting and anchoring are performed.

[0068] The fourth step is to hoist the prefabricated edge beam plate 4 so that the edges of the prefabricated edge beam plate 4 are overlapped on the prefabricated main beam 2 and the prefabricated secondary beam 3 respectively, and are grout-anchored to the prefabricated main beam 2 through the embedded anchor bolts 42.

[0069] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A support-free fully assembled platform canopy, characterized in that: include: Prefabricated columns, multiple prefabricated columns are arranged along the length of the platform canopy; the tops of the prefabricated columns are provided with vertical reserved steel bars exposed outwards; The prefabricated main beam comprises a connecting portion and cantilever beams extending from both sides of the connecting portion. The connecting portion comprises a base, a main body, and a connecting portion. The main body is located above the base. The connecting portion is provided with a through slot extending in the vertical direction. The two connecting portions are located on both sides of the main body and surround the base to form a beam socket. The base is placed on the top of the prefabricated column, the vertical reserved steel bars pass through the through slot, and concrete is poured in the through slot. The prefabricated secondary beam is located between adjacent prefabricated main beams, and the ends of the prefabricated secondary beam are overlapped in the beam sockets; The edges of the prefabricated side beam plates are overlapped on the prefabricated main beam and prefabricated secondary beam respectively.

2. The support-free fully assembled platform canopy according to claim 1, characterized in that: A reserved groove is provided in the middle of the top of the prefabricated column, and a reserved protrusion is provided below the base to engage with the reserved groove.

3. The support-free fully assembled platform canopy according to claim 1, characterized in that: The end of the prefabricated secondary beam is provided with a first reinforcement hole; the base is provided with a through hole; the vertical reserved steel bars pass through the through hole and extend into the first reinforcement hole, and are grout-anchored with the prefabricated secondary beam.

4. The support-free fully assembled platform canopy according to claim 1, characterized in that: A corbel support is provided at one end of the cantilever beam away from the connection portion; a lap side beam is provided at one side of the prefabricated side beam plate away from the prefabricated secondary beam, and the lap side beam is lapped on the corbel support.

5. The support-free fully assembled platform canopy according to claim 4, characterized in that: The prefabricated main beam is provided with embedded anchor bolts, which pass through the prefabricated side beam plate and are grout-anchored.

6. The support-free fully assembled platform canopy according to claim 1, characterized in that: It also includes a prefabricated foundation and a steel section assembly, wherein the steel section assembly includes embedded steel sections embedded in the prefabricated column and the prefabricated foundation respectively, and the two embedded steel sections are bolted to each other.

7. The support-free fully assembled platform canopy according to claim 6, characterized in that: The embedded steel section includes an embedded part and a flange plate connected to the embedded part, the embedded part includes an embedded steel plate and bolts; the prefabricated column or prefabricated foundation includes vertical steel bars, the embedded steel plate is welded to the vertical steel bars, and multiple bolts are connected to the side of the embedded steel plate and extend toward the center of the prefabricated column or prefabricated foundation; the flange plate abuts against the end face of the prefabricated column or prefabricated foundation, and the flange plate includes a skirt extending toward the outside of the prefabricated column or prefabricated foundation; the two flange plates abut against each other and the skirts are bolted.

8. The support-free fully assembled platform canopy according to claim 7, characterized in that: The side surfaces of the embedded steel plates are connected with reinforcing ribs, and the reinforcing ribs extend to the edges of the skirts.

9. The support-free fully assembled platform canopy according to claim 6, characterized in that: The embedded steel section includes an embedded section, an exposed section and an end plate. The embedded section is embedded in the prefabricated column or prefabricated foundation, the exposed section extends outward from the prefabricated column or prefabricated foundation, and the end plate is connected to the end of the exposed section. The end plates of the two embedded steel sections are abutted against each other and bolted together. The prefabricated column and the prefabricated foundation are both provided with vertical steel bars extending outward, and the vertical steel bars of the prefabricated column and the prefabricated foundation are connected by a cold-extruded sleeve. A post-cast concrete section surrounding the exposed section is provided between the prefabricated column and the prefabricated foundation.

10. The support-free fully assembled platform canopy according to claim 9, characterized in that: The end surface of the vertical steel bar does not extend beyond the end surface of the end plate away from the exposed section.

Images