Quick assembly type elevated platform for C-shaped stockyard

Abstract

According to the rapid assembly type elevated platform for the C-shaped stockyard, the overall supporting structure assembled on site is adopted, the assembly mode of concave-convex key grooves is combined, the assembly efficiency of the platform is improved, good rigidity and strength can be shown in the construction process of various working condition loads, and the construction period is shortened. Reliable support can be provided for installation and secondary pouring of other prefabricated parts of the elevated platform, and higher-level assembly of the elevated platform is achieved; the supporting frame is of an overall assembly type platform structure, the working procedures of on-site formwork erecting, formwork disassembling, reinforcing steel bar binding and the like can be reduced, manpower and material resources are saved, the construction cost is reduced, and the construction period is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to building structure technical field especially relates to a kind of quick assembly type elevated platform for C type stockyard. BACKGROUND

[0002] C type stockyard is a large-scale facility for storing bulk materials, with many advantages such as large storage capacity, land saving, flexible and reliable operation, good environmental protection effect, etc. The C type stockyard T type elevated platform is a special structure facility applied to the C type stockyard, and the support structure is in the shape of T. In the prior art, the T type elevated platform is generally prepared by full cast-in-place concrete process or assembly process, and it is an important part of the material conveying system.

[0003] However, the full cast-in-place concrete process often needs to set up a full scaffold on site and use a high formwork scheme during construction, which consumes a lot of manpower and resources and has a low degree of construction civilization, resulting in high engineering cost and long construction period. To solve the above problems, an assembly type elevated platform appears, which forms a whole through mechanical connection of stressed reinforcement and post-cast concrete nodes after on-site assembly, and has the characteristics of high assembly rate and low cost. However, the construction progress is affected by many factors such as production and supply of prefabricated components, transportation, and on-site installation conditions, especially the high-altitude installation of on-site assembly nodes is difficult, which leads to low construction efficiency.

[0004] Therefore, it is necessary to improve the structure of the existing assembly type T type elevated platform to save manpower and resource resources, reduce construction cost, and quickly and conveniently install to significantly shorten the construction period while ensuring the use stiffness and strength. SUMMARY

[0005] In view of the structural defects of the existing assembly type T type elevated platform, the purpose of the utility model is to provide a quick assembly type elevated platform for C type stockyard, which saves manpower and resource resources, reduces construction cost, and quickly and conveniently installs to significantly shorten the construction period while ensuring the use stiffness and strength.

[0006] To achieve the purpose of the utility model, the utility model provides a quick assembly type elevated platform for C type stockyard, which includes a support frame and a prefabricated load-bearing plate. The support frame includes:

[0007] A plurality of prefabricated columns are arranged along the longitudinal direction of the elevated platform.

[0008] A plurality of prefabricated long cantilever cap beams are assembled one by one on the prefabricated columns.

[0009] A plurality of prefabricated longitudinal beams are assembled on the adjacent prefabricated long cantilever cap beams, and are arranged side by side in the transverse direction, and together with the prefabricated columns and the prefabricated long cantilever cap beams form a support frame.

[0010] The prefabricated load-bearing plate is assembled and installed on the upper part of the support frame;

[0011] The contact surface of the prefabricated long cantilever cap beam and the prefabricated column joint is provided with a matching concave-convex key matching structure, and a secondary pouring interval is reserved for post-positioning pouring connection.

[0012] Further, the prefabricated column is a prefabricated single column, and a T-shaped support structure is formed between the prefabricated long cantilever cap beam and the prefabricated single column.

[0013] Further, the concave-convex key matching structure is directly formed when the prefabricated long cantilever cap beam and the prefabricated column are prefabricated.

[0014] Further, the stress longitudinal reinforcement in the prefabricated single column extends in the height direction, and the prefabricated long cantilever cap beam is reserved with a hole for the stress longitudinal reinforcement to pass out, and after the prefabricated long cantilever cap beam is positioned, the stress longitudinal reinforcement passes through the hole upward and is anchored at the top of the prefabricated long cantilever cap beam, and the hole is formed by post-poured concrete to form a rigid joint.

[0015] Further, the beam end of the prefabricated longitudinal beam is reserved with longitudinal reinforcement, and the beam end longitudinal reinforcement of the prefabricated longitudinal beam is anchored into the corresponding prefabricated long cantilever cap beam, and after positioning, it forms a rigid joint with the prefabricated long cantilever cap beam through post-poured concrete.

[0016] Further, the prefabricated long cantilever cap beam is a variable cross-section beam, which is formed by pre-pouring steel truss, steel reinforcement cage and concrete.

[0017] Further, the prefabricated long cantilever cap beam, the prefabricated longitudinal beam and the prefabricated load-bearing plate are connected by stress reinforcement in the joint gap to form an anchoring connection.

[0018] Further, the top of the prefabricated column is an enlarged column crown structure, and the prefabricated long cantilever cap beam is adapted to the contact part of the column crown structure.

[0019] Further, the prefabricated long cantilever cap beam has a downward protruding part, and the upper part of the column crown structure is provided with a recessed part matched with the protruding part, and after the prefabricated long cantilever cap beam is positioned, the protruding part is embedded in the recessed part to form the concave-convex key matching structure.

[0020] The utility model discloses a beneficial effect: the utility model discloses a quick assembly type elevated platform for C type stockyard adopts the integral support structure of on -the -spot assembly, combines the assembly mode of concave and convex key groove, improves the assembly efficiency of platform and can show better rigidity and strength in the construction process of various working conditions load, can provide reliable support for the installation and secondary pouring of other prefabricated components of elevated platform, realizes the higher level assembly of elevated platform, the support frame adopts the platform structure of integral assembly type, can reduce the process such as on -the -spot formwork, dismantling and binding reinforcement, saves manpower and material resources, reduces construction cost and shortens construction period. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further described below in combination with the drawings and examples:

[0022] Figure 1 It is the structure diagram of the quick assembly type elevated platform of the utility model;

[0023] Figure 2 It is the structure diagram of the prefabricated single column and the prefabricated long cantilever cap beam connection;

[0024] Figure 3 It is Figure 2 The enlarged view of A place of

[0025] Figure 4 It is the structure diagram of the prefabricated long cantilever cap beam and the prefabricated longitudinal beam connection;

[0026] Figure 5 It is the longitudinal section along the height direction of prefabricated longitudinal beam.

[0027] Reference signs: 1, prefabricated single column; 101, the recessed part of the column crown upper part of prefabricated column; 102, the stress longitudinal reinforcement in prefabricated single column; 103, column crown structure; 2, prefabricated long cantilever cap beam; 201, the downward protruding part of prefabricated long cantilever cap beam prefabricated part; 202, hole; 203, prefabricated long cantilever cap beam embedded metal piece; 3, prefabricated longitudinal beam; 301, beam end longitudinal reinforcement of prefabricated longitudinal beam; 302, end recess of prefabricated longitudinal beam; 303, prefabricated longitudinal beam end embedded metal piece; 4, prefabricated load-bearing plate; 5, steel truss. DETAILED DESCRIPTION

[0028] The utility model will be further described below in combination with the drawings and examples: Figures 1-5 The utility model will be further described below in combination with the drawings and examples:

[0029] The utility model discloses a kind of quick assembly type elevated platform for C type stockyard, including support frame and prefabricated load-bearing plate 4, the support frame includes:

[0030] The prefabricated column is arranged in multiple along the longitudinal direction of the elevated platform, bears the vertical load of the support system, and plays a role of positioning and maintaining the spatial form of the frame. The prefabricated column can be a concrete column in the prior art, and details are not described herein again.

[0031] The prefabricated long cantilever cover beam 2 is assembled in one-to-one correspondence on the top of the prefabricated column, bears the load of the upper part of the support system, and distributes and transmits the load to the prefabricated column. The length designed in the prefabricated long cantilever cover beam 2 can adjust the stress distribution of the support system. The prefabricated long cantilever cover beam 2 and the prefabricated column are reserved for pouring space and are fixedly connected by pouring on site. Necessary reinforcing structures, such as shear connecting keys, are arranged in the pouring space, and details are not described herein again.

[0032] The prefabricated longitudinal beam 3 is assembled in correspondence between adjacent prefabricated long cantilever cover beams 2, and is arranged in multiple in the transverse direction. The prefabricated longitudinal beam 3 is assembled with the prefabricated column and the prefabricated long cantilever cover beam 2 to form a support frame, plays a role of transmitting load, and transmits the load to the prefabricated column in the vertical direction. Details are not described herein again. The prefabricated longitudinal beam 3 is generally assembled on the prefabricated long cantilever cover beam 2 in a manner of reserving assembly space and pouring, such as reserving an assembly groove in the prefabricated long cantilever cover beam 2, placing the end of the prefabricated longitudinal beam 3 in the groove, reserving reinforcing steel bars, pouring to form fixed connection, and ensuring that the top end of the prefabricated longitudinal beam 3 is flush with the top end of the adjacent prefabricated long cantilever cover beam 2 after assembly. Details are not described herein again.

[0033] The prefabricated load-bearing plate 4 is assembled on the upper part of the support frame, plays a role of directly bearing the vertical load, and transmits the load to the prefabricated longitudinal beam 3 and the prefabricated long cantilever cover beam 2. The prefabricated load-bearing plate 4 can be a reinforced concrete load-bearing plate or a light material load-bearing plate in the prior art, and details are not described herein again. The prefabricated load-bearing plate 4 and the prefabricated longitudinal beam 3 or / and the prefabricated long cantilever cover beam 2 can be assembled by pouring in a reserved pouring space.

[0034] The prefabricated long cantilever cover beam 2 and the prefabricated column joint contact surface are provided with a concave-convex key matching structure matched with each other, and a secondary pouring interval is reserved for pouring connection after positioning. As shown in the figure, in the embodiment, the prefabricated part of the prefabricated long cantilever cover beam has a downward protruding part 201, the upper part of the column crown of the prefabricated column is provided with a recessed part 101 matched with the protruding part, the protruding part 201 is embedded in the recessed part 101 to form the concave-convex key matching structure after the prefabricated long cantilever cover beam 2 is positioned. When the prefabricated long cantilever cover beam 2 is positioned, the downward protruding part 201 of the prefabricated part of the prefabricated long cantilever cover beam is embedded in the recessed part 101 provided in the upper part of the column crown structure to form a close concave-convex key matching structure, which improves the overall stability and node bearing capacity of the structure, and details are not described herein again.

[0035] The concave-convex key matching structure makes the connection of the prefabricated long cantilever cap beam and the prefabricated column more compact and stable, increases the shear capacity of the connection part, and details are not repeated here; the secondary pouring interval is located at the gap of the concave-convex key matching structure of the prefabricated long cantilever cap beam 2 and the prefabricated column, and the connection is formed by pouring concrete at the secondary pouring interval, which enhances the integrity of the connection and also plays a role in adjusting the position and flatness of the component, details are not repeated here; of course, the prefabricated column can also be provided with an upward protruding part, and the prefabricated long cantilever cap beam is provided with an upward recessed part, which can also form a concave-convex key matching structure, details are not repeated here.

[0036] In the embodiment, the prefabricated column is a prefabricated single column 1, and a T-shaped support structure is formed between the prefabricated long cantilever cap beam 2 and the prefabricated single column 1, as shown in the figure, the support structure is composed of the prefabricated single column 1 and the prefabricated long cantilever cap beam 2 in the vertical stockyard direction to form a rigid frame system, and the support structure can transmit the vertical load and the transverse load borne by the platform to the lower foundation, details are not repeated here; the support structure is composed of the prefabricated single column 1, a prefabricated longitudinal beam for connecting the prefabricated long cantilever cap beams, a prefabricated longitudinal beam 3 and a prefabricated load-bearing plate 4 to form a frame structure system, and the T-shaped support structure has the function of transmitting the vertical load and the longitudinal load borne by the platform to the lower foundation, details are not repeated here.

[0037] In the embodiment, the concave-convex key matching structure is directly formed when the prefabricated long cantilever cap beam 2 and the prefabricated column are prefabricated, and the concave-convex key matching structure can increase the shear capacity between the prefabricated single column and the prefabricated long cantilever cap beam 2, details are not repeated here; the prefabricated column and the prefabricated long cantilever cap beam 2 with the concave-convex key matching structure are directly installed on the construction site, avoiding the secondary processing of complex field connection nodes and shortening the construction period; direct forming refers to directly pouring the shape structure of the recessed part and the protruding part, details are not repeated here.

[0038] In the embodiment, the stress longitudinal reinforcement 102 in the prefabricated single column extends along the height direction, as shown in the figure, the stress longitudinal reinforcement 102 in the prefabricated single column refers to the stress reinforcement arranged along the horizontal direction and extending along the height direction, which functions to bear the axial compression and other internal forces of the column, which will not be described herein; the prefabricated long cantilever cap beam 2 is reserved with a hole 202 for the stress longitudinal reinforcement to pass through, as shown in the figure, the hole 202 is arranged along the horizontal direction of the prefabricated single column 1 and extends along the height direction, which provides a space for the stress longitudinal reinforcement 102 in the prefabricated single column to pass through, which will not be described herein; after the prefabricated long cantilever cap beam 2 is in place, the stress longitudinal reinforcement 102 in the prefabricated single column passes through the hole 202 upward and is anchored at the top of the prefabricated long cantilever cap beam 2, so that the T-shaped support structure composed of the prefabricated single column 1 and the prefabricated long cantilever cap beam 2 can bear stronger deflection moment, thereby improving the carrying capacity of the support structure and maintaining the integrity of the structure; the hole 202 is formed into a rigid joint by post-poured concrete, the hole 202 is filled with post-poured concrete to wrap the stress longitudinal reinforcement 102 in the prefabricated single column, which cooperates with the stress longitudinal reinforcement 102 in the prefabricated single column to bear stress, thereby improving the rigidity and strength of the beam-column joint, and the structure is simple and convenient to construct, thereby improving the assembly efficiency; the hole 202 is reserved by setting a thin-walled bellows at the corresponding position of the hole during the prefabrication of the prefabricated long cantilever cap beam 2, and the hole 202 is formed after pouring, which will not be described herein.

[0039] In actual construction process, the prefabricated longitudinal beam end can be embedded with a metal part 303, and the prefabricated long cantilever cap beam can be embedded with a corresponding embedded metal part 203, which can be welded with the embedded metal part 303 of the prefabricated longitudinal beam end after being in place, thereby achieving reinforcement.

[0040] In the embodiment, the beam end of the prefabricated longitudinal beam is reserved with longitudinal reinforcement 301, and the beam end longitudinal reinforcement 301 of the prefabricated longitudinal beam is anchored into the corresponding prefabricated long cantilever cap beam 2, as shown in the figure, the beam end longitudinal reinforcement 301 of the prefabricated longitudinal beam is set in advance during the prefabrication stage, when the prefabricated longitudinal beam 3 is connected with the prefabricated long cantilever cap beam 2, the beam end longitudinal reinforcement 301 of the prefabricated longitudinal beam is inserted into the prefabricated long cantilever cap beam 2, which will not be described herein; after being in place, a rigid joint is formed between the prefabricated longitudinal beam 3 and the prefabricated long cantilever cap beam 2 by post-poured concrete, as shown in the figure, when the prefabricated longitudinal beam 3 is in place, i.e., the bottom surface of the prefabricated longitudinal beam 3 is flush with the top surface of the prefabricated part of the prefabricated long cantilever cap beam 2, the post-poured concrete is filled in the connecting part between the beam end of the prefabricated longitudinal beam 3 and the prefabricated long cantilever cap beam 2, including the gap between the longitudinal reinforcement and the anchoring area and the gap between the bottom surface of the prefabricated longitudinal beam 3 and the top surface of the prefabricated long cantilever cap beam 2, as the post-poured concrete hardens, the prefabricated longitudinal beam 3 and the prefabricated long cantilever cap beam 2 form a rigid joint, which will not be described herein.

[0041] In the embodiment, the contact surface at the joint of the prefabricated long cantilever cap beam 2 and the prefabricated longitudinal beam 3 is provided with a groove. The end groove 302 of the prefabricated longitudinal beam refers to a prefabricated recessed part provided at the end of the prefabricated longitudinal beam 3. The groove is usually located at the end of the beam close to the connection part, and its shape can be rectangular, trapezoidal or other regular shape, which is used for connection with the prefabricated long cantilever cap beam 2. The groove can be used as the placement position of the reinforcement at the end of the prefabricated longitudinal beam 3, so as to ensure that the prefabricated longitudinal beam 3 and the prefabricated long cantilever cap beam 2 can effectively transmit load and form a stable structure. Details are not described herein again. After the post-cast concrete is poured, the concrete fills the groove to form an effective reinforced connection.

[0042] In the embodiment, the prefabricated long cantilever cap beam 2 is formed by pouring concrete into a steel truss 5 and a reinforcement cage in advance. The height of the steel truss 5 built in the prefabricated long cantilever cap beam 2 is equivalent to that of the reinforcement cage. The steel truss 5 is a three-bar steel truss structure, in which the upper chord is two bars in the same horizontal plane, and the lower chord is a single bar, which is respectively welded and connected with the reinforcement cage. The reinforcement cage and the steel truss 5 are prefabricated by pouring part of the concrete in a customized mold, and are shaped after curing. Details are not described herein again. The prefabricated long cantilever cap beam 2 is a variable cross-section beam, which refers to a beam whose cross-section changes along the length direction of the beam. As shown in the figure, the cross-section height of the fixed end of the prefabricated long cantilever cap beam 2 is greater than that of the cantilevered ends on both sides, which is used for resisting external force and ensuring the safety and stability of the structure. Details are not described herein again.

[0043] The full cross-section height of the prefabricated long cantilever cap beam 2 is 1800mm at the fixed end and 1200mm at the cantilevered end, showing a gradually decreasing trend along the cantilever direction. The bending moment at the cantilevered end is relatively small compared with that at the fixed end. By reasonably reducing the full cross-section height, the force requirement can be met, and the waste of materials is avoided, so that the structure is more economical and reasonable. The variable cross-section height of the prefabricated long cantilever cap beam 2 is 1000mm at the fixed end and 400mm at the cantilevered end. The design of the variable cross-section is also set considering the internal force distribution of the structure. Details are not described herein again.

[0044] The prefabricated part height reaches 40% of the full cross-section height at its main force bearing part. At this point, the prefabricated long cantilever cap beam 2 has a variable cross-section with reasonable mechanical properties, so that the prefabricated long cantilever cap beam 2 has greater rigidity and strength and can bear various working load conditions in the construction process. Therefore, the prefabricated long cantilever cap beam 2 can be supported less or not supported during the construction stage, effectively reducing the construction cost and period.

[0045] In the embodiment, the precast long cantilever cover beam 2, the precast longitudinal beam 3 and the precast load-bearing plate 4 are connected by force steel after mutual splicing and gap pouring to form an anchoring connection. By arranging force steel at the splicing gap, force transmission and distribution between each precast component can be realized. When the building bears vertical load, the pressure on the precast load-bearing plate 4 can be transmitted to the precast longitudinal beam 3 through the force steel, and then to the precast long cantilever cover beam 2 through the precast longitudinal beam 3, and finally to the lower precast single column 1. When horizontal load is borne, the components can also resist external force through force steel, avoiding relative displacement or separation between components, maintaining the overall stability of the structure, which will not be described here. The anchoring connection formed by subsequent pouring is tightly wrapped around the force steel after the concrete solidifies, and is tightly combined with each component, so that the originally independent precast components become a continuous whole structure, enhancing the overall stability and stiffness of the structure and improving the durability and safety of the structure.

[0046] In the embodiment, the top of the precast column is an enlarged column crown structure 103. As shown in the figure, the column crown structure 103 expands outward at the top of the column, forming a larger shape than the cross section of the column body, which can better disperse the load transmitted from the upper structure, increase the contact area between the top of the precast column and the precast long cantilever cover beam 2, and make the load more evenly transmitted to the precast column, improving the performance of the entire structure in vertical bearing, which will not be described here. The contact part of the precast long cantilever cover beam 2 and the column crown structure 103 is conformal, that is, the bottom surface shape of the precast long cantilever cover beam 2 in contact with the column crown structure 103 matches the outer shape of the column crown, and the two can be tightly fitted to improve the overall stability of the structure, which will not be described here.

[0047] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application, which should be covered by the claims of the present application.

Claims

1. A quick-assembly elevated platform for a C-type stockpile, characterized by: The support frame comprises a support frame and a prefabricated load-bearing plate, and the support frame comprises: A plurality of prefabricated columns are arranged along the longitudinal direction of the elevated platform; A plurality of prefabricated long cantilever cover beams are assembled and installed one by one on the prefabricated columns; Prefabricated longitudinal beams are correspondingly assembled and installed between adjacent prefabricated long cantilever cover beams, and are transversely arranged in parallel, forming a support frame together with the prefabricated columns and the prefabricated long cantilever cover beams; The prefabricated load-bearing plate is assembled and installed on the upper part of the support frame; The prefabricated long cantilever cover beam and the prefabricated column are provided with a matching concave-convex key matching structure at the joint contact surface, and a secondary pouring interval is reserved for post-positioning pouring connection.

2. A quick assembly elevated platform for C-type stockyard according to claim 1, characterized in that: The prefabricated column is a prefabricated single column, and a T-shaped support structure is formed between the prefabricated long cantilever cover beam and the prefabricated single column.

3. A quick assembly elevated platform for C-type stockyard according to claim 1, characterized in that: The concave-convex key matching structure is directly formed during prefabrication of the prefabricated long cantilever cover beam and the prefabricated column.

4. A quick assembly elevated platform for C-type stockyard according to claim 2, characterized in that: The stress longitudinal reinforcement in the prefabricated single column extends in the height direction, and the prefabricated long cantilever cover beam is provided with a hole for the stress longitudinal reinforcement to pass out, and after the prefabricated long cantilever cover beam is positioned, the stress longitudinal reinforcement passes through the hole upward and is anchored at the top of the prefabricated long cantilever cover beam, and the hole is filled with post-poured concrete to form a rigid joint.

5. A quick assembly elevated platform for C-type stockyard according to claim 1, characterized in that: The prefabricated longitudinal beam is provided with longitudinal reinforcement at the beam end, and the longitudinal reinforcement at the beam end of the prefabricated longitudinal beam is anchored into the corresponding prefabricated long cantilever cover beam, and after positioning, the prefabricated longitudinal beam and the prefabricated long cantilever cover beam form a rigid joint through post-poured concrete.

6. A quick assembly elevated platform for C-type stockyard according to claim 1, characterized in that: The prefabricated long cantilever cover beam is a variable cross-section beam, which is formed by prefabricating a steel truss, a steel reinforcement cage and concrete.

7. A quick assembly elevated platform for C-type stockyard according to claim 1, characterized in that: The prefabricated long cantilever cover beam, the prefabricated longitudinal beam and the prefabricated load-bearing plate are connected by stress steel reinforcement at the joint gap to form an anchoring connection through post-poured concrete.

8. A quick assembly elevated platform for a C-type stockpile according to claim 3, characterized in that: The top of the prefabricated column is an enlarged column cap structure, and the prefabricated long cantilever cover beam is adapted to the contact part of the enlarged column cap structure.

9. A quick assembly elevated platform for a C-type stockpile according to claim 8, characterized in that: The prefabricated long cantilever cover beam has a downward protruding part, and the upper part of the enlarged column cap structure is provided with a recessed part matched with the protruding part, and after the prefabricated long cantilever cover beam is positioned, the protruding part is embedded in the recessed part to form the concave-convex key matching structure.

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