Fabricated construction steel platform for bearing operation of wheeled crane

Abstract

The utility model discloses an assembly type construction steel platform for bearing operation of a wheeled crane, which comprises a lower structure, an upper structure and a lower structure, the lower structure comprises an embedded part connected with a concrete column of a basement and steel columns welded with the embedded part, and the steel columns are distributed at intervals in two parallel transverse directions; the upper structure comprises steel main beams connected between two adjacent steel columns in the transverse direction and steel secondary beams connected between the two steel columns and the two steel main beams in the longitudinal direction; the subsidiary facility comprises a steel plate welded to the upper flange of the steel secondary beam and a protective barrier fixedly installed on the top of the steel column and the top of the steel main beam. The structure is simple, convenient to assemble and disassemble, high in construction efficiency and good in adaptability, the section specification of a main structure is determined through finite element calculation software, support counterforce is provided for a design institute to recheck, and safety of a steel platform and a basement concrete structure is guaranteed; the construction method can be widely applied to the basement roof with irregular elevation, and the wheeled crane is adopted for in-site operation.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an assembled construction steel platform for carrying wheeled crane operations, which is applied to a construction method in which the basement top plate elevation is irregular and wheeled cranes are used for on-site operations. Background Art

[0002] In recent years, steel structure buildings have been developing rapidly as a new industry, with advantages such as high assembly integration, high on-site construction efficiency, guaranteed quality, and green environmental protection. As the building form develops towards diversification, the steel structure construction environment has gradually become more complicated. Since many steel structure projects face problems such as complex construction environment and limited working space, for example, the installation working space of some steel structures is only in the basement area, and the elevation of the basement concrete top plate varies complexly, it is difficult for wheeled cranes to directly go up to the basement concrete floor for construction.

[0003] In the face of this problem, the traditional construction method uses Bailey frames as support structures on the top plate of the basement and steel plates as the pavement system. This construction method has some disadvantages:

[0004] 1. The stress on the concrete structure of the basement is greatly affected, and there is a risk of cracking of the concrete beams and floor slabs, and the waterproof function is difficult to guarantee;

[0005] 2. The Bailey frame structure system is difficult to bear large concentrated loads and is not suitable for wheeled crane construction operations;

[0006] 3. Bailey frames are mostly rented, subject to varying degrees of wear and tear, and it is difficult to ensure the structural stress. Utility Model Content

[0007] In order to overcome the shortcomings of the prior art, the technical problem to be solved by the utility model is to provide an assembled construction steel platform for carrying wheeled crane operations. It has a simple structure, convenient installation and disassembly, high construction efficiency, and good adaptability. It can be widely used in construction methods where the basement top plate elevation is irregular and wheeled cranes are used for on-site operations.

[0008] To achieve the above-mentioned purpose, the utility model provides an assembled construction steel platform for carrying wheeled crane operations, including: a lower structure, including embedded parts connected to concrete columns of the basement, steel columns welded to the embedded parts, and the steel columns are distributed at intervals in two parallel transverse directions; an upper structure, including a steel main beam connected between two adjacent steel columns in the transverse direction, and a steel secondary beam connected between the two steel columns and between the two steel main beams in the longitudinal direction; ancillary facilities, including a steel plate welded to the upper flange of the steel secondary beam, and a guardrail fixedly installed on the top of the steel column and the steel main beam.

[0009] Specifically, the steel column includes a square steel pipe fixedly connected to the embedded part, a steel corbel fixed on the top of the square steel pipe, and a column top sleeve fixed on the top surface of the square steel pipe.

[0010] Furthermore, the steel column also includes a diagonal brace, which is connected between the side surface of the square steel tube and the bottom surface of the steel main beam.

[0011] Furthermore, the steel main beam includes an H-shaped steel, a porous connecting plate connected to the upper and lower flanges and the web of the H-shaped steel and located on one side of the web, a stiffening plate connected to the upper and lower flanges and the web of the H-shaped steel and located on the other side of the web, a first double plywood connected to the upper and lower flanges and the web of the H-shaped steel and located at two ends of the H-shaped steel, and a beam top sleeve fixed on the top surface of the H-shaped steel; the H-shaped steel is connected between the steel corbels of adjacent steel columns through the first double plywood.

[0012] Furthermore, the steel secondary beam includes an inter-column secondary beam, a second double plywood fixed at both ends of the inter-column secondary beam, and an inter-beam secondary beam; the inter-column secondary beam is connected between the steel corbels of the two steel columns in the longitudinal direction through the second double plywood, and the inter-beam secondary beam is bolted to the multi-hole connecting plate of the two steel main beams in the longitudinal direction through the reserved holes at both ends thereof.

[0013] Furthermore, the bottom of the guardrail is inserted into the column top sleeve and the beam top sleeve and connected by bolts.

[0014] Furthermore, a first diamond-shaped connecting plate and a second diamond-shaped connecting plate are respectively provided on the side surface of the square steel tube and the bottom surface of the H-shaped steel at positions corresponding to the two ends of the diagonal brace.

[0015] From the above, compared with the prior art, the assembled construction steel platform for carrying wheeled crane operations of the utility model has at least the following beneficial effects:

[0016] 1. It consists of three modules, and the main components are processed in a standardized manner in the factory, with good quality and economic effects. The components are transported to the site and are mainly connected by bolts, which reduces the amount of on-site welding, is easy to install and disassemble, and has high construction efficiency and other assembly characteristics.

[0017] 2. According to construction requirements, the finite element calculation software can be used to determine the cross-section specifications of the main structure, and the support reaction force can be submitted to the design institute for review to ensure the safety of the steel platform and basement concrete structure.

[0018] 3. All steel columns of the steel platform are set at the top of the concrete columns to ensure that all loads are transferred to the foundation through the steel columns and concrete columns, greatly reducing the impact on the safety of the concrete structure and effectively ensuring the waterproof function of the basement roof.

[0019] 4. Steel secondary beams with different cross-sectional heights can be installed according to different platform width requirements, which can be applied to the site environment of different projects and has good adaptability.

[0020] 5. The lower structure includes embedded parts and steel columns. The steel columns transfer the load to the foundation through the embedded parts on the top of the concrete columns to ensure the safety and reliability of the basement structure. The upper structure includes steel main beams and steel secondary beams. The steel main beams and steel columns are connected by reserved steel bracket bolts. The steel secondary beams can be connected with the steel brackets reserved for the steel columns and the connection plates reserved for the steel main beams by changing the cross-sectional height to meet the requirements of different platform widths and have assembly characteristics. The ancillary facilities include steel plates and guardrails. The steel plates provide a flat working surface and the guardrails ensure the safety of personnel working on the edge. The utility model has the characteristics of simple structure, convenient installation and disassembly, high construction efficiency, good adaptability and other assembly characteristics. It can be widely used in construction methods with irregular basement top plate elevations and on-site operations using wheeled cranes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the assembled construction steel platform for carrying wheel crane operation of the utility model;

[0023] Figure 2 It is a cross-sectional view of the columns of the assembled construction steel platform for carrying the wheel crane operation of the utility model;

[0024] Figure 3 It is a cross-sectional view of the beam of the assembled construction steel platform for carrying the wheel crane operation of the utility model;

[0025] Figure 4 A detailed view of the node area of ​​the assembled construction steel platform for carrying the wheeled crane of the utility model;

[0026] Figure 5 It is a structural schematic diagram of a steel column of the utility model;

[0027] Figure 6 It is a structural schematic diagram of the steel main beam of the utility model;

[0028] Figure 7 This is a schematic diagram of the structure of the secondary beam between columns of the utility model;

[0029] Figure 8 It is a structural schematic diagram of the secondary beam between beams of the utility model;

[0030] Fig. 9 It is a schematic diagram of the actual use of the assembled construction steel platform for carrying wheel crane operations of the utility model.

[0031] In the figure: 100-lower structure: 110-embedded parts, 111-anchor bars, 122-embedded plates, 120-steel columns, 121-square steel pipes, 122-first diamond-shaped connecting plates, 123-diagonal braces, 124-steel corbels, 125-column top casings; 200-upper structure: 210-steel main beams, 211-H-shaped steel, 212-multi-hole connecting plates, 213-stiffening plates, 214-beam top casings, 215-first double plywood, 216-second diamond-shaped connecting plates, 220-steel secondary beams, 221-secondary beams between columns, 222-second double plywood, 223-secondary beams between beams; 300-accessories, 310-steel plates, 320-guardrails. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See below Figures 1 to 9 The assembled construction steel platform for carrying wheel crane operation of the utility model is described in detail.

[0034] like Figure 1-9 As shown, the assembled construction steel platform for carrying wheeled crane operations of the utility model includes: a lower structure 100, an upper structure 200, and auxiliary facilities 300.

[0035] The lower structure 100 includes embedded parts 110 and steel columns 120. The embedded parts 110 include anchor bars 111 extending into the top of the concrete columns fixed in the basement, and embedded plates 112 fixed on the top of the anchor bars 111. The embedded parts 110 are all located at the top of the concrete columns in the basement, ensuring that all loads of the steel platform are transferred to the foundation through the concrete columns and foundations, greatly reducing the impact on the safety of the concrete structure. The steel platform is welded to the embedded plates 112 through the steel columns 120, and the anchor bars 111 reliably fix the embedded parts 110 through the bond strength of the concrete, ensuring that the steel platform is effectively connected to the concrete structure of the basement.

[0036] The upper structure 200 includes a steel main beam 210 connected between two adjacent steel columns 120 in the transverse direction, and a steel secondary beam 220 connected between the two steel columns 120 and between the two steel main beams 210 in the longitudinal direction.

[0037] The steel column 120 of the utility model includes a square steel tube 121 welded and fixed to the embedded plate 112, a first diamond-shaped connecting plate 122, a diagonal brace 123, a steel corbel 124, and a column top sleeve 125. Among them, the steel corbel 124 is fixed to the top of the square steel tube 121, and the column top sleeve 125 is fixed to the top surface of the square steel tube 121. The diagonal brace 123 is mainly arranged on the square steel tube 121 with a component length exceeding 1.2m, and the diagonal brace 123 is connected between the side of the square steel tube 121 and the bottom surface of the steel main beam 210. The first diamond-shaped connecting plate 122 is bolted to the side of the square steel tube 121 to improve the anti-instability ability of the steel column 120 with a longer size. The steel corbel 124 is mainly used to bolt the steel main beam 210 and the steel secondary beam 220. The column top sleeve 125 is used to bolt the guardrail 320.

[0038] The steel main beam 210 of the utility model comprises an H-shaped steel 211, a multi-hole connection plate 212 connected to the upper and lower flanges and the web of the H-shaped steel 211 and located on one side of the web, a stiffening plate 213 connected to the upper and lower flanges and the web of the H-shaped steel 211 and located on the other side of the web, a first double clamping plate 215 connected to the upper and lower flanges and the web of the H-shaped steel 211 and located at both ends of the H-shaped steel 211, a beam top sleeve 214 fixed to the top surface of the H-shaped steel 211, and a second diamond-shaped connection plate 216 fixed to the bottom surface of the H-shaped steel 211. The H-shaped steel 211 is connected between the steel corbels 124 of the adjacent steel columns 120 through the first double clamping plate 215. The upper and lower flanges and the web of the H-shaped steel 211 are bolted to the steel corbels 124 of the steel column 120 through the first double clamping plate 215 at the end, and the beam top sleeve 214 is used to bolt the guardrail 320. The multi-hole connection plate 212 is used to connect the steel secondary beams 220 of different heights and has good adaptability; the stiffening plate 213 is set in the node area to further improve the bending and torsion resistance of the component. The first diamond-shaped connection plate 122 and the second diamond-shaped connection plate 216 are respectively set on the side of the square steel tube 121 at both ends of the corresponding diagonal brace 123 and the bottom surface of the H-shaped steel 211.

[0039] The steel secondary beam 220 includes an inter-column secondary beam 221, a second double plywood 222 fixed at both ends of the inter-column secondary beam 221, and an inter-beam secondary beam 223. The inter-column secondary beam 221 is connected between the steel corbels 124 of the two steel columns 120 in the longitudinal direction through the second double plywood 222, and the inter-beam secondary beam 223 is bolted to the multi-hole connecting plates 212 of the two steel main beams 210 in the longitudinal direction through the reserved holes at both ends thereof. The steel secondary beam 220 can be bolted to the steel corbels 124 reserved for the steel column 120 and the multi-hole connecting plates 212 of the steel main beam 210 by changing the cross-sectional height, so as to meet the requirements of different platform widths and have the characteristics of assembly. The inter-column secondary beam 221 is bolted to the steel corbels 124 of the steel column 120 through the second double plywood 222 at the end, and the inter-beam secondary beam 223 is bolted to the multi-hole connecting plates 212 of the steel main beam 210 through the reserved holes at the end.

[0040] like Figures 1 to 4 The auxiliary facilities 300 include a steel plate 310 and a guardrail 320. The steel plate 310 is welded to the upper flange of the steel secondary beam 220 to provide a working surface for the wheeled crane. The guardrail 320 is fixedly installed on the top of the steel column 120 and the steel main beam 210. The bottom of the guardrail 320 is inserted into the column top sleeve 125 and the beam top sleeve 214 and connected by bolts to ensure the safety of personnel working on the edge.

[0041] Below, refer to Figures 1 to 9 Combined with the description of the above structural features, the working principle of the assembled construction steel platform for carrying wheel crane operation of the utility model is briefly described:

[0042] According to the construction requirements, the finite element calculation software is used to determine the cross-sectional specifications of the main structure of the steel platform, and the support reaction force is provided to the design institute for review of the basement concrete structure; after the steel platform and the concrete structure are reviewed and confirmed, the embedded parts 110 are installed, and after the position of the embedded parts 110 is verified and confirmed, the concrete is poured; when the concrete strength reaches the design value, the on-site tower crane cooperates to install the steel columns 120, steel main beams 210 and steel secondary beams 220 of the steel platform; after the main structure is installed, the steel plate 310 is laid and the guardrail 320 is installed; after the steel platform is installed, the installation quality of each node and the trial operation of the wheeled crane are checked. After ensuring that there are no errors, the wheeled crane is officially installed on the steel platform for construction.

[0043] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be understood by anyone familiar with the technology within the technical scope disclosed by the present invention should be included in the scope of the present invention.

Claims

1. An assembled steel construction platform for carrying wheel crane operations, characterized in that: include: A lower structure (100) comprises an embedded part (110) connected to a concrete column of a basement, and a steel column (120) welded to the embedded part (110), wherein the steel column (120) is spaced apart and distributed in two parallel transverse directions; The upper structure (200) includes a steel main beam (210) connected between two adjacent steel columns (120) in the transverse direction, and a steel secondary beam (220) connected between the two steel columns (120) and between the two steel main beams (210) in the longitudinal direction; The auxiliary facilities (300) include a steel plate (310) welded to the upper flange of the steel secondary beam (220), and a guardrail (320) fixedly installed on the top of the steel column (120) and the steel main beam (210).

2. The assembled steel construction platform for carrying wheel crane operations according to claim 1 is characterized in that: The steel column (120) comprises a square steel pipe (121) fixedly connected to the embedded part (110), a steel corbel (124) fixed to the top of the square steel pipe (121), and a column top sleeve (125) fixed to the top surface of the square steel pipe (121).

3. The assembled steel construction platform for carrying wheel crane operations according to claim 2 is characterized in that: The steel column (120) further comprises an oblique brace (123), wherein the oblique brace (123) is connected between the side surface of the square steel tube (121) and the bottom surface of the steel main beam (210).

4. The assembled steel construction platform for carrying wheel crane operations according to claim 3 is characterized in that: The steel main beam (210) comprises an H-shaped steel (211), a multi-hole connection plate (212) connected to the upper and lower flanges and the web of the H-shaped steel (211) and located on one side of the web, a stiffening plate (213) connected to the upper and lower flanges and the web of the H-shaped steel (211) and located on the other side of the web, a first double clamping plate (215) connected to the upper and lower flanges and the web of the H-shaped steel (211) and located at two ends of the H-shaped steel (211), and a beam top sleeve (214) fixed to the top surface of the H-shaped steel (211); The H-shaped steel (211) is connected between the steel brackets (124) of adjacent steel columns (120) through the first double clamping plates (215).

5. The assembled steel construction platform for carrying wheel crane operations according to claim 4 is characterized in that: The steel secondary beam (220) comprises an inter-column secondary beam (221), a second double clamping plate (222) fixed at two ends of the inter-column secondary beam (221), and an inter-beam secondary beam (223); The inter-column secondary beam (221) is connected between the steel brackets (124) of the two steel columns (120) in the longitudinal direction through the second double plywood (222), and the inter-beam secondary beam (223) is bolted to the multi-hole connection plates (212) of the two steel main beams (210) in the longitudinal direction through the reserved holes at both ends thereof.

6. The assembled steel construction platform for carrying wheel crane operations according to claim 5, characterized in that: The bottom of the guardrail (320) is inserted into the column top sleeve (125) and the beam top sleeve (214) and connected by bolts.

7. The assembled steel construction platform for carrying wheel crane operations according to claim 4, characterized in that: A first rhombus-shaped connecting plate (122) and a second rhombus-shaped connecting plate (216) are respectively provided on the side surface of the square steel tube (121) and the bottom surface of the H-shaped steel (211) at positions corresponding to the two ends of the diagonal brace (123).

8. The assembled steel construction platform for carrying wheel crane operations according to claim 2, characterized in that: The embedded part (110) comprises an anchor bar (111) extending into the top of a concrete column fixed in the basement, and an embedded plate (112) fixed to the top of the anchor bar (111); the square steel pipe (121) is fixed to the embedded plate (112) by welding.

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